EN Manual

isoPV1685xxx_D00007_04_M_XXEN/05.2017

Insulation monitoring device with residual current monitoring (isoPV1685PFR only)for unearthed DC systems for photovoltaic systems up to 1500 V isoPV1685RTU: software version D0532 V2.0xisoPV1685P : software version D0525 V2.0xisoPV1685PFR: software version D0366 V1.0x

ISOMETER® isoPV1685RTUisoPV1685PisoPV1685PFR

Bender GmbH & Co. KGPostfach 1161 • 35301 Gruenberg • GermanyLondorfer Straße 65 • 35305 Gruenberg • Germany

Tel.: +49 6401 807-0Fax: +49 6401 807-259

E-Mail: info@bender.deWeb: www.bender.de

Customer serviceService-Hotline: 0700-BenderHelp (Telephone and Fax)Carl-Benz-Straße 8 • 35305 Gruenberg • Germany

Tel.:+49 6401 807-760Fax:+49 6401 807-629

E-Mail:info@bender-service.com

© Bender GmbH & Co. KGAll rights reserved.

Reproduction only with permissionof the publisher.

Subject to change.

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3 isoPV1685xxx_D00007_04_M_XXEN/05.2017

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3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

r connection to the supply voltage . . . . . . . . . . . . . . . . .12

elf test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

lf test via the RS-485 interface . . . . . . . . . . . . . . . . . . . . . .12

lf test via CAN bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

...........................................................................13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

rating controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

ents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

lements in the service lid . . . . . . . . . . . . . . . . . . . . . . . . . . .16

P switch and to the μSD card via the service lid . . . . .16

nnection ..........................................................17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

am . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

...........................................................................19 flow chart insulation fault monitoring . . . . . . . . . . . . . .19

flow chart insulation fault location (isoPV1685P(FR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

able of contents

. Important information .................................................................... 51.1 How to use this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2 Technical support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2.1 First level support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2.2 Repair service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2.3 Field service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.3 Training courses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.4 Delivery conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.5 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.6 Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

. Safety instructions ............................................................................ 72.1 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 Work activities on electrical installations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3 Device-specific safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.4 Address setting and termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.5 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

. Function ............................................................................................. 93.1 Features isoPV1685RTU, isoPV1685P and isoPV1685PFR . . . . . . . . . . . . . 9

3.2 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.3 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.3.1 General functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.3.2 μSD card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.3.3 Insulation monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.3.4 Insulation fault location (isoPV1685P(FR)) . . . . . . . . . . . . . . . . . . . . . . 11

3.3.5 Residual current monitoring (isoPV1685PFR) . . . . . . . . . . . . . . . . . . . 11

3.3.6 Assignment of the alarm relays K1, K2, K3 . . . . . . . . . . . . . . . . . . . . . . 11

3.3.7 Measured value transmission to the control inputs of the inverter 11

3.3.8 History memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.4 Self test. . . . . . . .

3.4.1 Self test afte

3.4.2 Automatic s

3.4.3 Manual self

3.4.3.1 Manual se

3.4.3.2 Manual se

4. Device overview ...4.1 Dimensions. . . .

4.2 Connections . . .

4.3 Display and ope

4.3.1 Display elem

4.3.2 Operating e

4.3.3 Access to DI

5. Installation and co5.1 Installation . . . .

5.2 Connection . . . .

5.2.1 Connection

5.2.2 Wiring diagr

6. Commissioning ....6.1 Commissioning

6.2 Commissioningonly) . . . . . . . . . . .

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8.5 Modbus RTU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

...........................................................................32 leakage capacitance depends on the insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

or insulation measurement . . . . . . . . . . . . . . . . . . . . . . . . .33

or residual current measurement nly) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

s stored in the history memory . . . . . . . . . . . . . . . . . . . .35

...........................................................................36

...........................................................................37ta in tabular form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

rovals and certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

ls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

...........................................................................40

8.5.1 Switching between BMS and Modbus . . . . . . . . . . . . . . . . . . . . . . . . . . 28

8.5.2 Commissioning RS-485 network with Modbus protocol . . . . . . . . 28

8.5.3 Setting Modbus address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

8.5.4 Modbus protocol settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

8.5.5 Scanning cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

8.5.6 Modbus register assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Table of contentsable of contents

. Settings ............................................................................................. 207.1 Setting BMS address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

7.2 Setting an alarm for insulation faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

7.3 Setting the permissible system leakage capacitance or measurement speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

7.4 Parameter setting of the insulation fault location (isoPV1685P(FR) only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

7.5 Deactivating the device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

7.6 Resetting alarm messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

7.7 Parameter setting with the iso1685 set tool . . . . . . . . . . . . . . . . . . . . . . . . 22

. Device communication .................................................................. 238.1 RS-485 interface with BMS and Modbus RTU protocol . . . . . . . . . . . . . . 23

8.1.1 Topology RS-485 network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

8.2 BMS bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

8.2.1 BMS protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

8.2.2 Commissioning of an RS-485 network with BMS protocol . . . . . . . 25

8.2.3 Setting BMS address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

8.2.4 Alarm and operating messages via the BMS bus . . . . . . . . . . . . . . . . 26

8.2.4.1 Alarm messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

8.2.4.2 Operating messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

8.2.5 Starting the firmware update via the BMS bus . . . . . . . . . . . . . . . . . . 26

8.3 CAN bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

8.4 Error codes BMS and CAN bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

9. Diagrams ................9.1 The measurable

resistance . . . . .

9.2 Response time f

9.3 Response time f(isoPV1685PFR o

9.4 Example of alarm

10. Factory settings ..

11. Technical data ....11.1 isoPV1685... da

11.2 Standards, app

11.3 Ordering detai

INDEX ............................

isoPV1685xxx_D00007_04_M_XXEN/05.2017

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1

AThth

rtbleshooting Bender offers you:

rt or e-mail for all Bender products

pecific customer applications

401 807-760*401 807-259enderHelp (Tel. and Fax)rt@bender-service.de

nd replacement service for Bender products

esting and analysing Bender products

update for Bender devices

t devices in the event of faulty or incorrectly delivered

Bender devices, which includes an in-house repair service or no extra cost

401 807-780** (technical issues)401 807-784**, -785** (sales)401 807-789@bender-service.de

epair to the following address:

e,

5

This operating manual describes the isoPV1685 series consisting of the devices isoPV1685RTU, isoPV1685P and isoPV1685PFR.

This symbol denotes information intended to assist the user in makingoptimum use of the product.

Please send the devices for r

Bender GmbH, Repair-ServicLondorfer Straße 65,35305 Grünberg

Important information. Important information

.1 How to use this manual

lways keep this manual within easy reach for future reference.o make it easier for you to understand and revisit certain sections in this manual, we ave used symbols to identify important instructions and information. The meaning of ese symbols is explained below.

This manual is intended for qualified personnel working in electrical engi-neering and electronics!

This signal word indicates that there is a high risk of danger that will re-sult in electrocution or serious injury if not avoided.

This signal word indicates a medium risk of danger that can lead todeath or serious injury if not avoided.

This signal word indicates a low-level risk that can result in minor ormoderate injury or damage to property if not avoided.

DANGER

WARNING

CAUTION

1.2 Technical suppoFor commissioning and trou

1.2.1 First level suppoTechnical support by phone

• Questions concerning s

• Commissioning

• Troubleshooting

Telephone: +49 6Fax: +49 6In Germany only: 0700BE-mail: suppo

1.2.2 Repair serviceRepair, calibration, update a

• Repairing, calibrating, t

• Hardware and software

• Delivery of replacemenBender devices

• Extended guarantee forreplacement devices at

Telephone: +49 6+49 6

Fax: +49 6E-mail: repair

Im

isoPV1685xxx_D00007_04_M_XXEN/05.20176

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FEIn

*A**

1BTa

1BFTEcedelivery conditions for products and services in the electrical industry) set out by the ZVEI (ZEo

1Tspsu

ations and laws governing the disposal of this device. Ask sure how to dispose of the old equipment. trical and electronic equipment (WEEE directive) and the di-certain hazardous substances in electrical and electronic apply in the European Community. In Germany, these poli-gh the "Electrical and Electronic Equipment Act" (ElektroG). ing applies:

equipment are not part of household waste.

tors are not part of household waste and must be disposed e regulations.

onic equipment from users other than private households o the market after 13 August 2005 must be taken back by the sed of properly.

e disposal of Bender devices, refer to our homepage at vice & support.

entralverband Elektrotechnik- und Elektronikindustrie e. V.) (German Electrical and lectronic Manufacturer's Association) also applies. Sale and delivery conditions can be btained from Bender in printed or electronic format.

.5 Storagehe devices must only be stored in areas where they are protected from dust, damp, and

ray and dripping water, and in which the specified storage temperatures can be en-red.

Important informationportant information

.2.3 Field servicen-site service for all Bender products

• Commissioning, parameter setting, maintenance, troubleshooting for Bender prod-ucts

• Analysis of the electrical installation in the building (power quality test, EMC test, thermography)

• Training courses for customers

elephone: +49 6401 807-752**, -762 **(technical issues)+49 6401 807-753** (sales)

ax: +49 6401 807-759-mail: fieldservice@bender-service.deternet: www.bender-de.com

vailable from 7.00 a.m. to 8.00 p.m. 365 days a year (CET/UTC+1)Mo-Thu 7.00 a.m. - 8.00 p.m., Fr 7.00 a.m. - 13.00 p.m.

.3 Training coursesender is happy to provide training regarding the use of test equipment. he dates of training courses and workshops can be found on the Internet t www.bender-de.com -> Know-how -> Seminars.

.4 Delivery conditionsender sale and delivery conditions apply. or software products the "Softwareklausel zur Überlassung von Standard-Software als eil von Lieferungen, Ergänzung und Änderung der Allgemeinen Lieferbedingungen für rzeugnisse und Leistungen der Elektroindustrie" (software clause in respect of the li-

nsing of standard software as part of deliveries, modifications and changes to general

1.6 DisposalAbide by the national regulyour supplier if you are not The directive on waste elecrective on the restriction of equipment (RoHS directive)cies are implemented throuAccording to this, the follow

• Electrical and electronic

• Batteries and accumulaof in accordance with th

• Old electrical and electrwhich was introduced tmanufacturer and dispo

For more information on thwww.bender-de.com -> Ser

isoPV1685xxx_D00007_04_M_XXEN/05.2017

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2Pst

2

Ifau

2

locating voltage!

ctric shock!ing the device, you may come into contact with live parts.

the mains voltage before opening the device!

that the basic settings meet the requirements of the IT system.ithout the required expertise, in particular children, must nots to or contact with the ISOMETER®.

that the operating voltage is correct!ulation and voltage tests, the ISOMETER® must be disconnect- IT system for the duration of the test. In order to check the cor-

ction of the device, a functional test has to be carried out beforee system.

t of an alarm message of the ISOMETER®, the insulation faultliminated as quickly as possible.

ETER® is installed inside a control cabinet, the insulation faultust be audible and/or visible to attract attention.

When using ISOMETER®s in IT systems, make sure that only one active ISO-onnected in each interconnected system. If IT systems are in-d via coupling switches, make sure that ISOMETER®s not

sed are disconnected from the IT system and deactivated. ITupled via diodes or capacitances may also influence the insu-itoring process so that a central control of the different ISOME-uired.

7

An excessive locating current of the internal locating current injector maydamage sensitive loads (e.g. control circuits) or trigger unwanted switch-ing operations. Select a low locating current for these systems. In case ofdoubt, please contact our service department (refer to Kapitel „1.2 Tech-nical support").

DANGER

METER® is cterconnectecurrently usystems colation monTER®s is req

Safety instructions. Safety instructions

.1 General safety instructionsart of the device documentation in addition to this manual is the enclosed "Safety in-ructions for Bender products".

.2 Work activities on electrical installations

the device is used outside the Federal Republic of Germany, the applicable local stand-rds and regulations must be complied with. The European standard EN 50110 can be sed as a guide.

.3 Device-specific safety instructions

Only qualified personnel are permitted to carry out the work necessary toinstall, commission and run a device or system.

Risk of electrocution due to electric shock!Touching live parts of the system carries the risk of: • An electric shock • Damage to the electrical installation • Destruction of the deviceBefore installing and connecting the device, make sure that the installa-tion has been de-energised. Observe the rules for working on electrical in-stallations.

Danger as a result of excessive locating current or excessive

DANGER

Risk of eleWhen openSwitch off

Make surePersons whave acces

Make surePrior to insed from therect connestarting th

In the evenshould be e

If the ISOMmessage m

DANGER

WARNING

CAUTION

S

isoPV1685xxx_D00007_04_M_XXEN/05.20178

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E

isoPV1685P are used for insulation monitoring and the y used for residual current monitoring of large photovoltaic signed as IT systems. The measurement method specially de-ctuations (MPP tracking) monitors the insulation resistance ith large solar generator panels where extremely high sys-

gainst earth exist due to interference suppression methods. d high leakage capacitances also occurs automatically.

ng current pulses required for insulation fault location. That e insulation fault using permanently installed or mobile insu-685P(FR) only).monitoring allows fast signalling of a measured insulation er, transformer) (isoPV1685PFR only).

formation in the operating manual

tervals

ments of applicable standards, the equipment must be ad-nd operating conditions by means of customised parameter its of the range of application indicated in the technical data.

cribed in this manual is regarded as improper.

ied personnel are permitted to carry out the work necessary tomission and run a device or system.

Safety instructionsafety instructions

.4 Address setting and terminationorrect address setting and termination is essential for proper functioning of the device.

nsure correct address setting and termination of the device!

Prevent measurement errors!When a monitored IT system contains galvanically coupled DC circuits, aninsulation fault can only be detected correctly if the rectifier valves (e.g.rectifier diode, thyristors, IGBTs, frequency inverters, …) carry a minimumcurrent of > 10 mA.

Unspecified frequency range!When connecting to an IT system with frequency components below thespecified frequency range, the response times and response values maydiffer from the indicated technical data. However, depending on the ap-plication and the selected measurement method, continuous insulationmonitoring is also possible in this frequency range. There is no influence on the insulation monitoring for IT systems with fre-quency components above the specified frequency range, e.g. within therange of typical switching frequencies of frequency inverters (2…20 kHz).

Risk of bus errors!Double assignment of addresses on the respective BMS or CAN busses can cause serious malfunctions.CAUTION

2.5 Intended use

The isoPV1685RTU and the isoPV1685PFR is additionallsystems up to DC 1500 V developed for slow voltage flueven in systems equipped wtem leakage capacitances aAdaptation to system-relateThe device generates locatiallows the localisation of thlation fault locators (isoPV1Integrated residual current faults on the AC side (invert

Intended use also implies:

• The observation of all in

• Compliance with test in

In order to meet the requirejusted to local equipment asettings. Please heed the lim

Any other use than that des

Only qualifinstall, com

isoPV1685xxx_D00007_04_M_XXEN/05.2017

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3

• Alarm relays separately adjustable for insulation fault 1, insulation fault 2

es

tionU is an insulation monitoring device for IT systems in accord-

SOMETER®s isoPV1685P and isoPV1685PFR are insulation stems in accordance with IEC 61557-8 and IEC 61557-9.

in photovoltaic installations.

isoPV1685RTU isoPV1685P isoPV1685PFR

X X

nt X

e X

s X

X X

X X X

X X X

X X X

X

685P and isoPV1685PFR use the RS-485 interface for the BMSoPV1685RTU uses the RS-485 interface for the BMS bus or forTU: The device can be switched between BMS and Modbus.the RS-485 interface is mentioned in this manual, it refers to theavailable or configured function (BMS or Modbus) in the de-

ing texts always describe device version isoPV1685PFR whichore device features, the device version which includes a locat- injector and residual current measurement.

9

(isoPV1685P, isoPV1685RTU only)

• CAN interface to output measured values, statuses and alarms

• RS-485 interface

• isoPV1685(P)FR: BMS bus, e.g. to control the insulation fault location

• isoPV1685RTU: BMS bus or Modbus (can be switched using the DIP switch)

• μSD card with data logger and history memory for alarms

3.2 Product descripThe ISOMETER® isoPV1685RTance with IEC 61557-8. The Imonitoring devices for IT syThe ISOMETER®s can be used

Function. Function

.1 Features isoPV1685RTU, isoPV1685P and isoPV1685PFR

• Insulation monitoring of large-scale photovoltaic systems

• Measurement of low-resistance insulation faults

• Separately adjustable response values Ran1 (alarm 1) and Ran2 (alarm 2) (both 200 Ω…1 MΩ) for prewarning and alarm. Ran1 ≥ Ran2 applies.

• Automatic adjustment to high system leakage capacitances up to 2000 μF, selecta-ble range

• Connection monitoring of L+, L- for reverse polarity

• Integrated locating current injector up to 50 mA (isoPV1685P(FR) only)

• Fast detection of insulation faults on the AC side by residual current monitoring (inverter, transformer) allowing fast disconnection (isoPV1685PFR only)

• Residual current response values IDn for prewarning and alarm (1…5 A) (isoPV1685PFR only)

• CT connection monitoring (isoPV1685PFR only)

• Device self test with automatic message in the event of a fault

• Alarm relays separately adjustable for insulation faults, residual current faults and device errors (isoPV1685PFR only);

Only device versions isoPV1685PFR and isoPV1685P provide a locatingcurrent injector. The device version isoPV1685PFR additionally providesresidual current monitoring!

Tabular overview of featur

Insulation fault localisation(locating current injector)

Residual current measureme

Instantaneous tripping in thevent of an

insulation fault

Disconnection from the main

Digital inputs

μSD card

CAN bus

BMS bus

Modbus RTU

The isoPV1bus. The isModbus RWhenever respective vice.

The followprovides ming current

F

isoPV1685xxx_D00007_04_M_XXEN/05.20171

3

3Inp

isIfwthre

isIfwthreTae"PTla

isIfrespTvcreAseTn"P

sed as data logger for storing all relevant events. lues, statuses and alarms are stored during operation:

d leakage capacitance

685PFR only)

voltages to earth, supply voltages

urrent injector (isoPV1685P(FR) only)

L+, L–

isoPV1685PFR)

evice errors

ew log file is generated. If the current file size exceeds a new file is generated. The file name contains the time and e typical time that is needed until the maximum file size is

days. Hence, a μSD card with a memory space of 2 GByte can days.

it is reached on your card, the oldest file in each case will be mory that is also copied to the μSD card contains all alarms in

oring pulsating AC measuring voltage is superimposed onto the IT e consists of positive and negative rectangular impulses of riod duration depends on the system leakage capacitances in resistances of the system to be monitored.

e of the measuring voltage for insulation fault monitoring

Um

t

0

lay K2 switches and the associated "Alarm IdN" LED lights up. ll relevant measured values and their statuses (Normal, Prewarning, Alarm) are cyclically nt via the CAN interface.

he locating current injector integrated in the device for insulation fault location is exter-ally activated via the BMS interface. When starting the insulation fault location, the LED GH on" signals the locating current pulse. Abb. 3.1: Pulse sequenc

Functionunction

.3 Functional description

.3.1 General functional descriptionsulation monitoring is carried out using an active measuring pulse which is superim-

osed onto the PV system to earth via the integrated coupling.

oPV1685RTU: the insulation resistance between the PV system and earth falls below the preset pre-arning response value Ran1, the "Alarm 1" LED lights and the alarm relay K1 switches. If e value also falls below response value Ran2, the "Alarm 2" LED also lights and the alarm lay K2 switches.

oPV1685P: the insulation resistance between the PV system and earth falls below the preset pre-arning response value Ran1, the "Alarm 1" LED lights and the alarm relay K1 switches. If e value also falls below response value Ran2, the "Alarm 2" LED also lights and the alarm lay K2 switches.

he locating current injector integrated in the device for insulation fault location is either ctivated externally via the BMS interface or via the internal backup master function if no xternal master has been connected. When starting the insulation fault location, the LED GH on" signals the locating current pulse.

he insulation fault location can be started manually via the digital input 1, e.g. for insu-tion fault location with mobile insulation fault locators (e.g. EDS195).

oPV1685PFR: the insulation resistance between the PV system and earth falls below the set prewarning sponse value Ran1, only the "Alarm 1" LED lights. If the value also falls below the alarm re-onse value Ran2, the alarm relay K1 switches and the "Alarm 2" LED lights.

he residual current is detected via an external measuring current transformer. The r.m.s. alue is calculated by summing up the AC component that are below the cut-off frequen-y. If the residual current exceeds the set alarm response value, the corresponding alarm

3.3.2 μSD cardThe integrated μSD card is uThe following measured va

• Insulation resistance an

• Residual current (isoPV1

• System voltage, partial

• Temperature locating c

• Temperature coupling

• Insulation faults

• Residual current faults (

• Connection faults and d

Following each start-up, a n10 MByte during operation,date of the creation time. Threached is approximately 2 record data for approx. 400When the maximum data limoverwritten. The history mecsv. format.

3.3.3 Insulation monitFor insulation monitoring, asystem. The measuring pulsthe same amplitude. The peeach case and the insulation

F

isoPV1685xxx_D00007_04_M_XXEN/05.20171

AWsp1b

3FPis

A

W,sjepB

from the mains.

monitoring (isoPV1685PFR)on faults on the AC side, residual current monitoring is inte-FR. An external measuring current transformer with one is required for this purpose. itoring an appropriate signal is delivered via the test winding

asurement winding.

e alarm relays K1, K2, K3

85RTU and isoPV1685P: falls below the alarm response value Ran1

falls below the alarm response value Ran2

a device error or a connection fault.

85PFR: falls below the alarm response value Ran1 and Ran2

response value IΔn2 (residual current) is exceeded.a device error or a connection fault.

transmission to the control inputs of the inverteres, operating messages and alarms are made available via the

vice errors including "Come", "Go" and "Acknowledgement" e internal history memory. from the internal EEPROM to the History.csv file on the μSD nditions:

p

an hour

card has been inserted

tory memory, the Excel tool "iso1685 History.xlsx" can be ows csv.-file data to be processed and evaluated. By way of ntries are shown on page 35.

formation about the use.

1

card under the following co

• following device start-u

• during operation once

• when a compatible μSD

For the evaluation of the hismade available. This tool allexample, history memory eThe tool includes detailed in

Functionunction

n insulation fault between the IT system and earth closes the measuring circuit. hen the insulation resistance between the PV system and earth falls below the set re-onse values Ran1 and Ran2 (1 = prewarning, 2 = alarm), the associated alarm relay K1 (11,

2, 14) switches. Detected insulation faults are signalled to other bus devices via the BMS us and the CAN bus. In addition, the alarm LEDs alarm 1 or alarm 2 will light up.

.3.4 Insulation fault location (isoPV1685P(FR))or insulation fault location, a suitable locating current is superimposed onto the faulty V system with which EDS... insulation fault locators can locate insulation faults. The oPV1685P(FR) utilises an internal locating current injector with IL ≤ DC 50 mA.

bb. 3.2: Pulse sequence of the internal locating current injector for insulation fault location

hen permanently installed insulation fault locators (with master capability) are used uch as EDS460-D or EDS490-D, control and synchronisation of the locating current in-ctor is carried out by one of the insulation fault locators in BMS master mode. For this urpose, the isoPV1685P(FR) has to communicate with the insulation fault locator via the MS bus.

During the insulation fault location process, the function of insulation re-sistance measurement is deactivated and the coupling is disconnected

2 s 4 s 2 s 4 s

IL

t

3.3.5 Residual currentFor the detection of insulatigrated into the isoPV1685Pmeasuring and test windingFor current transformer monthat is evaluated by the me

3.3.6 Assignment of th

Relay assignment isoPV16K1 switches when the value(insulation resistance).K2 switches when the value(insulation resistance).K3 switches in the event of

Relay assignment isoPV16K1 switches when the value(insulation resistance).K2 switches when the alarmK3 switches in the event of

3.3.7 Measured value All recorded measured valuCAN bus and the BMS bus.

3.3.8 History memoryAll warnings, alarms and detimestamps are stored in thThe history data are copied

F

isoPV1685xxx_D00007_04_M_XXEN/05.20171

3

3OntimIfnTcre

3AT

3TthOc

ia the RS-485 interfaceia the RS-485 interface, the alarm relays K1 (11-12-14) and K2

is only shortly switched after a device restart .

ia CAN bus

85P:easurement test, the alarm relay K1 (11-12-14) and the alarm

ched. K3 won't be switched.

via the CAN bus, you can choose between an insulation fault ual current measurement test.easurement test, the alarm relay K1 (11-12-14) is switched.

measurement test, the alarm relay K2 (21-22-24) is switched.

nth, carry out a manual self test via the CAN or RS-485 interfacehat the device functions correctly!

2

• Internal RAM

• CPU register

• Watchdogs

• Oscillator

• Function of the Iso measurement technique

• Restart of the device including re-initialising and recalibration (only when the test is requested via RS-485 interface)

Functionunction

.4 Self test

.4.1 Self test after connection to the supply voltagence connected to the supply voltage, all internal measurement functions, the compo-ents of the process control such as data and parameter memory as well as the connec-ons to earth are checked. Once the self test is finished, after approx. 5 s the normal easurement mode begins.

a device error or a connection fault is detected, the corresponding alarm will be sig-alled via the CAN and the RS-485 interface as well as via the alarm relay K3 (31-32-34). his relay continuously operates in N/C operation, i.e. it de-energises even in case of a omplete device failure. During this self test, when the device is being started, the alarm lays K1 and K2 are not switched.

.4.2 Automatic self testll supply voltages are continuously monitored. he following tests are continuously carried out in the background:

• Connection E-KE

• System polarity

• Residual current transformer (connection, short circuit, isoPV1685PFR only)

• Temperature measurement

• Measuring voltage generator

.4.3 Manual self testhe self test is started via the CAN or RS-485 interface by a Modbus or BMS master with e test button or by any CAN bus device.nly in the manual self test mode (via the CAN or RS-485 interface), the following tests

an be carried out:

• Internal Flash

3.4.3.1 Manual self test vDuring the manual self test v(21-22-24) are switched. K3

3.4.3.2 Manual self test v

isoPV1685RTU and isoPV16During the insulation fault mrelay K2 (21-22-24) are swit

isoPV1685PFR:When the self test is startedmeasurement test or a residDuring the insulation fault mDuring the residual current K3 won't be switched.

Once a moto ensure t

isoPV1685xxx_D00007_04_M_XXEN/05.2017

8.75

mm

5.2 mm

61.8

mm

76.6

mm

39.8 mm

55.7 mm

13

4. Device overview

4.1 Dimensions

SERVICE

ALARM 2

ISOMETER®isoPV1685

ON

ALARM 1

PGH ON

ALARM 3 (I∆n)

246

mm

125

mm

40.5

mm

40.75 mm

51 mm

106 mm64

mm

368 mm

383 mm

401.5 mm

D

isoPV1685xxx_D00007_04_M_XXEN/05.20171

4

A1 A2 KE

KE A1 A2

r

, KEonnection earth/reference. onnect both to PE

A1, A2Supply voltage DC 24 V.Arbitrary polarity

evice overview

4

.2 Connections

E 21 22 2431 32 34k l kT ITA B S

RS-485Term.

off on

CAN 1 CAN 2

I2+ I2- I1+ I1-

K3 K2

11 12 14

K1

I2+ I2- I1+ I1- A B S k I kT IT 31 32 34 21 22 24 11 12 14 E

I2+I2-I1+I1-Digital inputs(no function for isoPV1685PFR)

RS-485 Term.offon

CAN 1CAN 2

A, B, SRS-485 bus connection (A,B) Protocol: BMSor Modbus

kIkTIT(function only available for isoPV1685PFR)

31, 32, 34Relay output for device error ("Service" LED)

21, 22, 24Relay output for alarm insulation fault

11, 12, 14Relay output foalarm insulation fault

ECC

L2/L- L1/L+

L1/+ L2/-

Coupling terminal L2/L- Coupling terminal L1/L+

D

isoPV1685xxx_D00007_04_M_XXEN/05.20171

evice overview

5

SERVICE

ALARM 2

ISOMETER®iso1685FR

ON

ALARM 1

SERVICE

ALARM 2

ISOMETER®isoPV1685

ON

ALARM 1

PGH ON

ALARM 3 (I∆n)

- LEDs:- ON: operation (flashes)- PGH ON: insulation fault location (isoPV1685P(FR))- SERVICE: device error, connection fault- ALARM 1: insulation fault- ALARM 2: insulation fault- ALARM 3: residual current fault (isoPV1685PFR)

DIP switch (SS8103)

Button (ST6101)

Memory card (SD card)

D

isoPV1685xxx_D00007_04_M_XXEN/05.20171

4

4

1

2

3

4

5

6

nts in the service lidhows the position of the operating elements

itch and to the μSD card via the service lidsing gently on the ribbed surface and pulling the lid from the

ollowing settings can be carried out:

ess or the Modbus address (SS8103)

akage capacitance (SS8103)

ent speed (SS8103)

1)

the μSD card to read out stored alarms, for example.

switches, refer to Kapitel „7.3 Setting the permissible system surement speed" on page 20.

Operating elements

Function

DIP switch(SS8103)

isoPV1685RTU:• Switching between BMS and Modbus: A4• BMS /Modbus address setting: A3…A0• Leakage capacitance setting• Measurement speed setting

isoPV1685P(FR):• BMS address setting: A4…A0• Leakage capacitance setting• Measurement speed setting

Button (ST6101)

• Alarm reset

Memory card(μSD card)

• Memory for log files and history memory (μSD card);

SERVICE

ALARM 2

ISOMETER®iso1685FR

ON

ALARM 1

SERVICE

ALARM 2

ISOMETER®isoPV1685

ON

ALARM 1

PGH ON

ALARM 3 (I∆ n)

6

Flashes: Connection fault check earth

ALARM 2(yellow)

Insulation fault 2 (alarm):The "ALARM 2" LED lights continuously when the insulation resistance falls below the response value 2, RF < Ran2

Flashes: Fault measuring current transformer (isoPV1685PFR only)

ALARM 3(yellow)

Residual current fault (isoPV1685PFR only).The "ALARM 3" LED lights continuously when the residual current exceeds the response value, IΔn ≥ Ian For a description of the DIP

leakage capacitance or mea

Device overviewevice overview

.3 Display and operating controls

.3.1 Display elements

ON(green)

Power On indicator:Flashes with a pulse duty factor of approx. 80 %.

Device error:Lights continuously when the device stops functioning (device stopped).

Software update:Flashes approx. three times faster during the firmware update than in the standard mode, update time < 4 minutes.

PGH ON(yellow)

Insulation fault location (isoPV1685P(FR) only)The LED "PGH ON" flashes during insulation fault location. It indicates that the locating current for the insulation fault location is generated.

SERVICE(yellow)

Internal device error and connection fault .(System, earth, measuring current transformer):Lights continuously. Also refer to the list of error codes on page 19

ALARM 1(yellow)

Insulation fault 1 (prewarning):The "ALARM 1" LED lights continuously when the insulation resistance falls below the response value 1, RF < Ran1

SERVICE

ALARM 2

ON

ALARM 1

SERVICE

ALARM 2

ON

ALARM 1

PGH ON

ALARM 3 (I∆n)

1

2

3

4

5

6

4.3.2 Operating elemeThe representation below s

4.3.3 Access to DIP swOpen the service lid by presenclosure away.After removing the lid the f

• Changing the BMS addr

• Setting the maximum le

• Changing the measurem

• Resetting alarms (ST610

In addition, you can access

A4A3A2A1A0

12345678

SS8103

ST6101

μSDCard

isoPV1685xxx_D00007_04_M_XXEN/05.2017

5

5Inwwm

5

5

ductor PE.WARNING

perty damage due to unprofessional installation!n one insulation monitoring device is connected to a conduc-ected system, the system can be damaged. If several devicested, the device does not function and does not signal insula- Make sure that only one insulation monitoring device is con-ach conductively connected system.

connection from the IT system!lation or voltage tests are to be carried out, the device must bem the system for the test period. Otherwise the device may be

per connection!missioning of the installation, check that the device has been

nnected and check the device functions. Perform a functionaln earth fault via a suitable resistance.

ls are pluggable push-wire terminals. Solid connecting wiresctly plugged in. For connection of flexible cables, the push-wire

ust be pushed open by pressing the corresponding orange in-mechanism with a flat-head screwdriver.

17

Risk of injury from sharp-edged terminals!Risk of lacerations. Touch the enclosure and the terminals with due care.

CAUTION

Installation and connection. Installation and connection

.1 Installation stall the device using four M5 screws, also refer to the dimension diagram on page 13 here the drilling holes are illustrated. Install the device so that it is in a vertical position ith the system coupling (L+, L–) positioned at the top when it is being operated. All di-ensions in mm.

.2 Connection

.2.1 Connection requirements

Only qualified personnel are permitted to carry out the work necessary toinstall, commission and run a device or system.

Risk of electrocution due to electric shock!Touching live parts of the system carries the risk of: • An electric shock • Damage to the electrical installation • Destruction of the deviceBefore installing and connecting the device, make sure that the installa-tion has been de-energised. Observe the rules for working on electrical in-stallations.

Warning of insulation monitoring devices that do not workcorrectly!Connect the terminals KE and E individually to the protective earth con-

DANGER

Risk of proIf more thatively connare connection faults.nected in e

Ensure disWhen insuisolated frodamaged.

Check proPrior to comproperly cotest using a

All terminacan be direterminals mterlocking

CAUTION

In

isoPV1685xxx_D00007_04_M_XXEN/05.20171

5Cc

measuring current transformer (isoPV1685PFR only)n conformance with the standards may be routed through former. Make sure to route the conductors centrically ent transformer!

Connections

has no function, digital input.

put5PFR: Currently has no function.5RTU and isoPV1685P:

the insulation fault location in the manual mode.

ion to CAN bus, 2 x RJ-45, can be terminated using the CAN rminating switch.

ion to Modbus or BMS bus, RS-485, S= shield (connect one end n be terminated with the terminating switch RS485 Term.

5PFR only:ion to measuring current transformer.asurement winding/kT, lT = test winding

lay K3 for internal device errors.

ion of relay assignment according to device type, see page 11;5RTU and isoPV1685P only:

lay K2 for insulation faults.5PFR only:

lay K2 for residual current faults.

lay K1 for insulation faults.

connection of E and KE to PE.

A1, A2 Connection to Us = DC 24 V via fuses, 6 A each.

ion to L+ of the PV generator via 1 A fuse.

ion to L– of the PV generator via 1 A fuse.

8

1A1A

PE

L1L2L3

GCable routing through theOnly conductors insulated ithe measuring current transthrough the measuring curr

L+ Connect

L– Connect

Installation and connectionstallation and connection

.2.2 Wiring diagramonnect the device with the help of the connection and terminal diagram. Use the adja-ent legend.

ISOMETER®iso1685

US

6A31 32 34 11 12 1421 22 24

6A

BMS-/ Modbus-Master2

k I kT ITI2+ I2- I1+ I1- A1 A2E KE

L2/-L1/+

A B S K1K3 K2CAN1 CAN2RS485 Term.

PGH ONSERVICE

ALARM 2

ISOMETER®isoPV1685

ON

ALARM 1

PGH ON

ALARM 3 (I∆n)

Terminal,Socket

I2+, I2– Currently

I1+, I1–

Digital inisoPV168isoPV168Starting

CAN2 CAN1

Connect120-Ω te

A, B, S Connectto PE), ca

k, l/kT, lTisoPV168Connectk, l = me

31, 32, 34 Alarm re

21, 22, 24

DescriptisoPV168Alarm reisoPV168Alarm re

11, 12, 14 Alarm re

E, KE Separate

isoPV1685xxx_D00007_04_M_XXEN/05.2017

6

6

Function test with a suitableresistance between system and

flow chart insulation fault location ) only)

Make sure that the system is

disconnected from any electrical

source before connecting the device!

noSet the EDS mode of the isoPV1685P(FR) to

„auto“ via the BMS bus

ADR:xx k:xx xxmA

no Check the CT wiring

o

yesRemove resistor and select another circuit

downstream a measuring current transformer

no Change the settings in the EDS device menu, change the EDS parameters of the isoPV1685P(FR)

no Connection or device error: check connections

19

earth. Value: 50% of the response value Ran2

Alarm LEDs activated?Alarm relays switched?

yes

no Check connections

Remove resistance

The isoPV1685… is correctly connected and functions reliably

Alarm LEDs extinguished?Alarm relays switched?

no

yes

Shall other connectedCTs be tested?

Remove the resistor

Alarm LEDs extinguished?Alarm relays switched?

Delete alarm messages:Press reset button at the EDS... or call up the EDS reset in the EDS...

menu

no

no

The EDS... operates properly and is connected correctly

Commissioning. Commissioning

.1 Commissioning flow chart insulation fault monitoring

System = IT system ?

Device connection

Un < DC1500 V ?

isoPV1685… not suitableno

Deenergize the installation before connecting the device

E and KE to PE

System to L+, L-

Optional Device connection

BMS bus to A, B, S

Supply voltage to A1/A2

Message periphery to K1, K2, K3 11-12-14, 21-22-24, 31-32-34

Connect supply voltage

Connect mains voltage

no

yes

yes

ja

isoPV1685… not suitable

Measuring current transformers to k, l, kT, lT

Connection or device error: check connection

Shall the factory setting be retained? no

yes

Carry out settings via DIP switch, CAN, BMS or Modbus

(isoPV1685RTU)

Alarm LEDs deactivated?

yes

no Preset response valueundershot, possibly adjust

Optional: set the clockisoPV1685(P)FR: CAN

isoPV1685RTU: BMS, Modbus

The isoPV1685… successfully carries out a self test

CAN bus to CAN socket

yes

no

6.2 Commissioning(isoPV1685P(FR

Install the Insulation fault locator EDS46x /49x and the

appropriate CTs

Connect the BMS bus cable of the EDS system to the

isoPV1685P(FR)

Address all BMS components, a bus master with address 1 is

required

Connect supply voltage

Connect system voltage

isoPV1685P(FR) successfullycarries out a self test

Function test with a suitableresistance between system and

earth. Value: 50% of the response value Ran2

Alarm LEDs activated?Alarm relays switched?

Press the test button of theEDS46x / 49x

Is the faulty subcircuit being recognised correctly:

yes

Are all CTs recognised correctly from EDS46x / 49x ?

yes

n

LED "PGH on" of the isoPV1685P(FR) is flashing. Insulation

fault location is activated

Shall the factory setting be retained?

yes

yes

yes

isoPV1685xxx_D00007_04_M_XXEN/05.2017

7

7R

7YmtiloAc

Oa

issible system leakage capacitance or peed

h SS8103 is used to set the profile considering the maximum Ce max.

n be changed using switch 7.

DIP switch SS8103 are used to switch the maximum system nd the measurement speed. The measurement speed can be ently occurring fault alarms caused by transients in the sys-

measurement time doubles. Segment 8 is reserved.

ngs may only be changed when the PV voltage is switched off.

aximum system leakage capacitance Ce max is set to 2000μFimit of measuring range for the insulation resistance decreases to 50kΩ. Therefore, check also the settings of the response

:

Switch position:Up = OffDown = On

:

A4A3A2A1A0

12345678

SS8103

20

DIP switch SS8103, segment 7OFF = FastON = Slow

Settings. Settings

.1 Setting BMS addressefer to “Setting BMS address” on page 25.

.2 Setting an alarm for insulation faultsou can set the limit values for alarm 1 and alarm 2 of the ISOMETER® via the BMS bus by eans of a BMS gateway (e.g. COM460IP) or a terminal program. Activation or deactiva-

on of the two alarm levels Ran1 for alarm 1 and Ran2 for alarm 2 are illustrated in the fol-wing graphic:n alarm will become inactive as soon as the hysteresis of the set operating value is ex-eeded.

ne insulation resistance from 200 Ω…1 MΩ can be set respectively for alarm 1 and larm 2. Condition: alarm 1 ≥ alarm 2.

t

R

Ran1

Ran2

Alarm 1 active

Alarm 2 active

Alarm 2 inactive

Alarm 1 inactive

hysteresis

hysteresis

7.3 Setting the permmeasurement s

The switch 6 of the DIP switcsystem leakage capacitance

The measurement speed ca

The switches 6 and 7 of theleakage capacitance Ce max aset to "Slow" in case of frequtem. In the Slow mode, the

These setti

When the mthe upper lfrom 1MΩvalue Ran.

DIP switch SS8103, segment 6OFF = 500 μF = Ce maxON = 2000 μF = Ce max

S

isoPV1685xxx_D00007_04_M_XXEN/05.20172

7

SYo

Ining

the insulation fault location restarts automatically for one cycle.

Inactive insulation fault location(insulation measurement)

Active insulation fault locationfor 1 cycle

Insulation fault location pauses(insulation measurement)

Active insulation fault locationcontinuously

No insulation fault

Manual start

Manual stop.The device retains the original mode setting

Mode: 1 cycleMode: auto

1

Settingsettings

.4 Parameter setting of the insulation fault location (isoPV1685P(FR) only)

et the value of the locating current required for insulation fault location to 1…50 mA. ou can make this setting via the BMS bus by means of a BMS gateway (e.g. COM460IP) r a terminal program.

order to be able to locate insulation faults, select one of the four available modes for sulation fault location by means of the BMS gateway (e.g. COM460IP) or terminal pro-

ram via the BMS bus or Modbus.

• off The insulation fault location is deactivated.

• manual In manual mode, the insulation fault location starts immediately. If you start the insulation fault location, it remains active without con-sidering the insulation resistance and the alarm message of the ISOMETER®.

• auto In auto mode, the insulation fault location starts automatically as soon as the response value of alarm 2 of the ISOMETER® has fallen below the preset value. The insulation fault location is cyclically interrupted for an insulation measurement. If the insulation fault still exists after the interruption, the insulation fault location starts again. The insulation fault location only stops if alarm 2 is inactive. If a new insulation fault appears, the insulation fault location restarts automatically.

• 1 cycle In 1-cycle mode, the insulation fault location starts automatically as soon as the response value of alarm 2 of the ISOMETER® has fallen below the preset value. The insulation fault location is stopped after one cycle. If the insulation fault still exists after the interruption, the insulation fault location does NOT start again. If a new insulation fault appears,

New insulation faultMode: auto/1 cycle

Insulation faultstill present

Manual start.The device retains the original mode setting

S

isoPV1685xxx_D00007_04_M_XXEN/05.20172

7WgT

Tsic

7RPeT

ng with the iso1685 set tool1685RTU can be set with the iso1685 set tool.

software at:com/en/service-support/download/software.html

e iso1685 set program you confirm the following conditions:vides this software free of charge and without any warranty. Byoftware you agree that you are using the software at your ownr does not assume any responsibility for possible software er-cts and does not guarantee that the software works error-free

y. Furthermore, Bender does not accept liability for direct or in-age that may arise from the use of the software.

5 set tool can only be used if there is no master in the BMS

2

Settingsettings

.5 Deactivating the devicehen the device is deactivated, the coupling unit of the device (isoPV1685(P)FR only) is

alvanically isolated from the system being monitored. he device can be activated or deactivated via the BMS channel 10:

• Activate the standby mode using the BMS command STDBY 1

• Deactivate the standby mode using the BMS command STDBY 0

• Query the current state using the BMS command TRSH? 10

he standby mode of the isoPV1685PFR for example, allows team operation of inverters nce in interconnected systems only one insulation monitoring device is allowed to be onnected in each system.

.6 Resetting alarm messagesecorded faults are provided as alarm messages on the BMS bus and the CAN bus.ressing the reset button ST6101 will reset these alarm messages. If the fault continues to xist, the message will be generated again.he fault can also be reset by means of the acknowledgement command via the CAN bus.

A4A3A2A1A0

12345678

7.7 Parameter settiThe parameters of the isoPV

• You can download the http://www.bender-de.

By using thBender prousing this srisk. Benderors or defeand reliabldirect dam

The iso168system.

isoPV1685xxx_D00007_04_M_XXEN/05.2017

8

8

Tciswd

Amfee

1: Wiring and termination of the BMS bus

... Device

al length of the RS-485 network: 1200 m

Last device

Stub feeder0.6

A1 A2E KE21 22 2431 32 34k l kT ITA B S

RS-485Term.

off on

K3 K2

11 12 14

K1

A B S k I kT IT 31 32 34 21 22 24 11 12 14 E KE A1 A2

A B S

RS-485Term.

off on

CAN 2

A B S

A B S

CAN 2

A B S

23

Abb. 8.

CAN 1 CAN 2

I2+ I2- I1+ I1-

I2+ I2- I1+ I1-

Device communication. Device communication

.1 RS-485 interface with BMS and Modbus RTU protocol

he RS-485 interface, galvanically isolated from the device electronics, serves as a physi-al transmission medium for the BMS and the Modbus RTU protocol. When an oPV1685… or other bus devices are interconnected via the RS-485 interface in a net-ork, the bus must be terminated at both ends with a 120 Ω resistor. For this purpose, the evice is equipped with the terminating switch RS485 Term.

n RS-485 network that is not terminated is likely to become unstable and may result in alfunctions. Only the first and last device in one line may be terminated. Hence, stub eders in the network must not be terminated. The length of the stub feeders is restrict-

d to 1 meter.

The isoPV1685P and isoPV1685PFR use the RS-485 interface for the BMSbus. The isoPV1685RTU uses the RS-485 interface for the BMS bus or forModbus RTU - the device can be switched between BMS and Modbus.Whenever the RS-485 interface is mentioned in this manual, it refers to therespective available or configured function (BMS or Modbus) in thedevice.

1. Device

Maxim

0.6

D

isoPV1685xxx_D00007_04_M_XXEN/05.20172

8TtiR

CT

WT

WTS(eCTB

part of the Bender measuring device interface (BMS bus pro-nerally makes use of ASCII characters.

baud

t bit, 7 data bits, 1 parity bit, 1 stop bit (1, 7, E, 1)

f all transmitted bytes = 0 (without CR and LF)

s according to the MASTER-SLAVE principle. Only one MAS-rk. All bus devices are identified by a unique BMS address. all other slaves on the bus, listens to their signals and then g commands.

ER function by assigning bus address 1 to it.

ured values, alarm and operating messages from a slave.to a device, this device automatically represents the master, and 150 are cyclically scanned via the BMS bus for alarm and

aster receives no answer from five subsequent addresses, again. If the master detects incorrect answers from a slave,

the fault message "Fault RS-485" will be output via the BMS bus.

twice

on the BMS bus

ur on the bus lines

nnected to the bus

e not activated or not connected

685… can only be operated as BMS SLAVE!

4

���

� ��Fault causes may be:

• Addresses are assigned

• A second master exists

• Interference signals occ

• A defective device is co

• Terminating resistors ar

Device communicationevice communication

.1.1 Topology RS-485 networkhe optimum topology for an RS-485 network is a daisy-chain connection. In this connec-on, device 1 is connected to device 2, device 2 to device 3, device 3 to device n etc. The S-485 network represents a continuous path without branches.

orrect arrangementhree examples for correct arrangement:

rong arrangementhree examples for wrong arrangement:

iringhe following type of wiring is recommended for the RS-485 network:hielded cable, core diameter ≥ 0.8 mm.g. J-Y(St)Y 2x0.8), shield connected to earth (PE) on one end.onnection to terminals A and B.he number of bus nodes is restricted to 32 devices. If more devices are to be connected, ender recommends the use of a DI1 repeater.

�� ��

8.2 BMS bus

8.2.1 BMS protocolThis protocol is an essentialtocol). Data transmission geInterface data are:

• Baud rate: 9600

• Transmission: 1 star

• Parity: even

• Checksum: Sum o

The BMS bus protocol workTER may exist in each netwoThe MASTER cyclically scanscarries out the correspondinA device receives the MAST

BMS masterA master can query all measIf bus address 1 is assigned i.e. all addresses between 1 operating messages. If the mthe scanning cycle will start

The isoPV1

D

isoPV1685xxx_D00007_04_M_XXEN/05.20172

Tthwc

8

8Tto

tch of the dip switch SS8103 is used to switch between BMS and

Switching between BMS and Modbus” auf Seite 28).

DIP switch SS8103

BMS addr. A3 A2 A1 A0

2 0 0 0 03 0 0 0 14 0 0 1 05 0 0 1 16 0 1 0 07 0 1 0 18 0 1 1 09 0 1 1 1

10 1 0 0 0.. .. .. .. ..... ... ... ... ...

17 1 1 1 1

DIP switch SS8103

BMS addr. A4 A3 A2 A1 A0

2 0 0 0 0 03 0 0 0 0 14 0 0 0 1 05 0 0 0 1 16 0 0 1 0 07 0 0 1 0 18 0 0 1 1 09 0 0 1 1 1

10 0 1 0 0 0.. .. .. .. .. ..... ... ... ... ... ...

33 1 1 1 1 1

A32

5

A2A1A0

345678

Device communicationevice communication

he ISOMETER® isoPV1685P cannot be a master and cannot have address 1. However, if ere is no master in the system, the ISOMETER® isoPV1685P becomes the backup master ith a different BMS address (e.g. 2 or 3). Communication with the slaves in the system

an be carried out via the backup master.

.2.2 Commissioning of an RS-485 network with BMS protocol

• Interconnect terminals A and B of all bus devices in one line

• Switch the terminating resistors on at the start and the end of the RS-485 network. If a device at the end of the bus is not terminated, connect a 120 Ω resistor to termi-nals A and B

• Switch the supply voltage on

• Assign the master function and address 1 to a bus-capable device

• Assign addresses to all other bus devices in consecutive order

• isoPV1685RTU: Address range 2…17

• isoPV1685P(FR): Address range 2…33

.2.3 Setting BMS addresshe factory setting of the BMS address can be changed using the DIP switch SS8103. Fac-ry setting BMS address = 2.

isoPV1685RTU:

isoPV1685P(FR):

The A4 swiModbus (see 8.5.1 “

Switch position:

Up = Off Down = On

Switch position:

Up = Off Down = On

A4A3A2A1A0

12345678

A41

D

isoPV1685xxx_D00007_04_M_XXEN/05.20172

8Mm

8

A

A

A(

Cp

C

N

D

O

O

O

ges

ware update via the BMS busd via the BMS bus using the BMS Update Manager which can

Channel

Meaning

1 Insulation resistance ≥ response value Ran1

2 Insulation resistance ≥ response value Ran2

3Residual current ≤ response value IΔn1 (prewarning);Channel only available for isoPV1685PFR

4 Leakage capacitance Ce to earth

5 Voltage between L+ and L–

6 Voltage between L+ and PE

7 Voltage between L– and PE

8Current locating current of the locating current injector (PGH);Channel only available for isoPV1685P(FR)

10 Current temperature of the coupling L+

11 Current temperature of the coupling L–

12Current temperature of the locating current injectorChannel only available for isoPV1685P(FR)

6

Device communicationevice communication

.2.4 Alarm and operating messages via the BMS busessages are transmitted to a maximum of 12 BMS channels. All alarm and operating essages that may occur are described below.

.2.4.1 Alarm messages

AlarmChan

nelMeaning

larm 1 (insulation fault) 1 Insulation resistance < response value Ran1 (prewarning)

larm 2 (insulation fault) 2 Insulation resistance < response value Ran2 (alarm)

larm IΔN residual current fault)

3Residual current > response value I∆n1 (prewarning) or > I∆n2 (alarm);Channel only available for isoPV1685PFR

onnection system (reverse olarity)

4 Connection fault: L+, L– reversed

onnection PE 5 Connection fault: E/KE not connected to PE

o CT connected 6Connection fault measuring current transformer;Channel only available for isoPV1685PFR

evice error 7 Internal device error with error code

vertemperature coupling 10 Overtemperature coupling L+

vertemperature coupling 11 Overtemperature coupling L–

vertemperature PGH 12Overtemperature of the locating current injector;Channel only available for isoPV1685P(FR)

8.2.4.2 Operating messa

8.2.5 Starting the firmThe firmware can be updatebe obtained from Bender.

Alarm

Insulation resistance

Insulation resistance

Residual current IΔN

Leakage capacitance

Mains voltage

Partial voltage U+/PE

Partial voltage U-/PE

PGH current

Temperature coupling

Temperature coupling

Temperature PGH

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isoPV1685xxx_D00007_04_M_XXEN/05.20172

8IndCp

S and CAN busll relevant error codes output via BMS bus or CAN bus. The s the relevant action to be taken in each case.

ErrorTo do Description

CT connection Check connection

Connection to earth (E/KE)

Self test insulation monitoring Contact service

Measuring voltage source

Self test residual current monitoring

PGH: Locating current too high

PGH: Locating current isn‘t to switch out

Mains voltage (L+, L-) polarity incorrect

Supply voltage ADC

Supply voltage +12 V

Supply voltage -12 V

Supply voltage +5 V

Supply voltage +3,3 V

Residual current measurement

Locating current injector

Voltage measurement

Program sequence insulation monitoring

Program sequence residual current measurement

Program sequence locating current injector

9.74 0x80FF System Program sequence voltage measurement

Program sequence temperature measurement

Program sequence history memory

Program sequence console

Program sequence self test

Check connection

Replace the device

Contact service

Replace the device

Replace the device

Replace the deviceReplace the device

Replace the device

Replace the device

Replace the device

Download factory settingand parameterise newDownload factory settingand parameterise newDownload factory settingand parameterise newContact service

Re-start device

Re-start device

Re-start device

Re-start device

Re-start deviceRe-start device

Re-start device

Re-start device

Re-start device

Insulation resistance measurement

Stack error

Check connection

7

9.75 0x80FF System

9.76 0x80FF System

9.77 0x80FF System

9.78 0x80FF System

metsyS FF08x0 97.9

Device communicationevice communication

.3 CAN busdependently of this manual, communication via CAN interface is specified in a separate

ocument.AN bus termination is carried out from the outside by means of a 120-Ω termination lug.

Abb. 8.2: Termination of the CAN bus

CAN 1 CAN 2

8.4 Error codes BMThe following list contains aright-hand column describe

Error codeBMS CAN Component

Connection 0402x0 01.0

0.�0 0x2008 Hardware

8.11 0x8003 Hardware

8.12 0x8007 Hardware

8.21 0x8004 Hardware

8.31 0x8007 Hardware

8.32 0x8007 Hardware

8.41 0x8005 Anschluss

8.42 0x8007 Hardware

8.43 0x8007 Hardware

8.44 0x8007 Hardware

8.45 0x8007 Hardware

8.46 0x8007 Hardware

retemaraP 6008x0 16.9

9.62 0x8006 Parameter

9.63 0x8006 Parameter

9.64 0x8008 Parameter

9.71 0x80FF System

9.72 0x80FF System

9.73 0x80FF System

D

isoPV1685xxx_D00007_04_M_XXEN/05.20172

8TfathTv

Fsih

8UM

RS-485 network with Modbus protocolcation of devices via Modbus RTU, they have to be connected us interface of the isoPV1685RTU uses the same physical in-RS-485 interface.

A and B (see “Connections” on page 14) of all bus devices in

resistors on at the start and the end of the RS-485 network. If e bus is not terminated, connect a 120 Ω resistor to termi-

ge on

and address 1 to a device

7) to all other bus devices in consecutive order

8

Device communicationevice communication

.5 Modbus RTU (isoPV1685RTU)he Modbus RTU is used for integration of Bender devices featuring a Modbus RTU inter-ce into systems with a Condition Monitor (e.g. CP700, COM465xP) or for integration into ird-party systems.

he Modbus RTU transmits measured values, status messages, control commands or de-ice parameters as binary codes.

or more detailed information regarding Modbus RTU including features and commis-oning, refer to the "Modbus RTU" manual at ttp://www.bender.de/manuals.

.5.1 Switching between BMS and Modbusse switch 1 of the DIP switch SS8103 to switch between communication with BMS or odbus.

Switch 1SS8103

Channel

OFF (switch position up)

BMS

ON (switch position down)

Modbus RTU

A4A3A2A1A0

12345678

SS8103

8.5.2 Commissioning In order to enable communito the same bus. The Modbterface as the BMS bus: the

• Interconnect terminals one line.

• Switch the terminating a device at the end of thnals A and B

• Switch the supply volta

• Assign master function

• Assign addresses (2…1

D

isoPV1685xxx_D00007_04_M_XXEN/05.20172

8S

S

O

O

2

0

0

0

0

0

0

0

…

…

1

l settingsre factory set and cannot be changed:

ed via Modbus (register 0x3007).600 baud.n be set:

the scanning cycle for all Modbus registers should be ≥2 s.

sured values "insulation resistance" depends on the system V system. The shortest update rate is approx. 5 s. The normal

9

Device communicationevice communication

.5.3 Setting Modbus addresset the Modbus address by means of switches 2 to 5 of the DIP switch SS8103.

witch position Value

FF Switch position up

0

N Switch position down

1

DIP switch SS8103 Modbus address

=A3 3=A2 4=A1 5=A0

0 0 0 2

0 0 1 3

0 1 0 4

0 1 1 5

1 0 0 6

1 0 1 7

1 1 0 8

… … …

… … …

1 1 1 17

A4A3A2A1A0

12345678

SS8103

8.5.4 Modbus protocoThe following parameters a

• Data bits: 8

• Parity: None

• Stop bits: 1

The baud rate can be changThe standard baud rate is 9The following baud rates ca

• 9600 baud

• 19200 baud

• 38400 baud

• 57600 baud

8.5.5 Scanning cycleDue to the low update rate,

The update rate for the mealeakage capacitance of the Pupdate rate is >10 s.

D

isoPV1685xxx_D00007_04_M_XXEN/05.20173

8

Re

Rh i Comment / Value Standard

0 "isoPV1685RTU-4"

0 532

0 f.e. 9206

0 Build no. from build-process

000 0 - OK; 4 - Warning

0 0 - OK; 4 - Warning

0

0 (Code 213 during test)

0 (Code 213 during test)

0

0

0 0 - OK; 4 - Warning (> 150°C) 0

0 0 - OK; 4 - Warning (> 150°C) 0

0 0 - OK; 2 - Error 0

0

0 - No error;> 0 - Error code according to manual (without decimal point) 0

0

0 - No test; 1 - Internal test; 2 - External test 0

D

V

evice communication

0

.5.6 Modbus register assignment

ad: Function Code 0x03 = 03 (Read Holding Registers); Write: Function Code 0x10 = 16 (Write Multiple Registers)

egisteradr. in exadezimal

Registeradr. in decimal Description

Number Words Data type Mode Range Un

x510 1296 Device name 10 String UTF 8 RO

x578 1400 D-no. software 1 UInt16 RO

x579 1401 Software version 1 UInt16 RO

x57A 1402 Build no. 1 Int16 RO

x2000 8192 Insulation resistance 2 UInt32 RO Ω

x2002 8194 Leakage capacity 2 Float RO F

x2004 8196 Prewarning (Insulation resistance) 1 UInt16 RO

x2005 8197 Alarm (Insulation resistance) 1 UInt16 RO

x2006 8198 Net voltage 1 Int16 RO V

x2007 8199 Voltage U+/earth 1 Int16 RO V

x2008 8200 Voltage U-/earth 1 Int16 RO V

x2009 8201 Temperature coupling L+ 1 Int16 RO °C

x200A 8202 Temperature coupling L- 1 Int16 RO °C

x200B 8203 Alarm overtemperature coupling L+ 1 UInt16 RO

x200C 8204 Alarm overtemperature coupling L- 1 UInt16 RO

x200D 8205 Connection earth (E/KE) 1 UInt16 RO

x200E 8206 Device error 1 UInt16 RO

x200F 8207 Status test 1 UInt16 RO

evice information

alues

D

isoPV1685xxx_D00007_04_M_XXEN/05.20173

Rh i Comment / Value Standard

0 10

0 1

0 0 = Off, 1 = On 0

0 5 = N/O, 6 = N/C, 9 = N/O-T, 10 = N/C-T 10

0 5 = N/O, 6 = N/C, 9 = N/O-T, 10 = N/C-T 10

0 9,600, 19,200, 38,400, 57,600 9,6

0

0

0

0

0

0 Factory setting = 0xFF00

0 Start test = 0xFF00

0 Reset (memory) = 0xFF00

P

C

evice communication

1

egisteradr. in exadezimal

Registeradr. in decimal Description

Number Words Data type Mode Range Un

x3000 12288 Response value prewarning 2 UInt32 R/W 200 … 1,000,000 Ω

x3002 12290 Response value alarm 2 UInt32 R/W 200 … 1,000,000 Ω

x3004 12292 Memory 1 UInt16 R/W 0 … 1

x3005 12293 Relay K1 (prewarning) 1 UInt16 R/W 5 … 10

x3006 12294 Relay K2 alarm) 1 UInt16 R/W 5 … 10

x3007 12295 ModbusRTU Baudrate 1 UInt16 R/W 9,600 … 57,600

x3008 12296 Year 1 UInt16 R/W 2,000 … 2,136

x3009 12297 Month 1 UInt16 R/W 1 … 12

x300A 12298 Day 1 UInt16 R/W 1 … 31

x300B 12299 Hour 1 UInt16 R/W 0 … 23

x300C 12300 Minute 1 UInt16 R/W 0 … 59

x3100 12544 Factory setting 1 UInt16 WO

x3101 12545 Start test 1 UInt16 WO

x3102 12546 Reset (memory) 1 UInt16 WO

arameter

ontrol commands

isoPV1685xxx_D00007_04_M_XXEN/05.2017

500

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32

9. Diagrams

9.1 The measurable leakage capacitance depends on the insulation resistance

1

10

100

1000

5050,5

Capa

cita

nce

[μF]

Fault resistance [k�]

��������������� ��� ��� �����������������������

����������� ������������������������������������������������������������������������ ����������������������!������� ����������������������� ��������������������!��������

D

isoPV1685xxx_D00007_04_M_XXEN/05.20173

9

100,0 200,0

1 μF

500 μF

2000 μF

iagrams

3

.2 Response time for insulation measurement

10

100

1000

0,4 1,0 2,0 20,0 40,0

����

���

����

���� ��

����

isoPV1685������� ����������������� ������������������������

���������������������������������������&����(%!�������������������������������� �����������������������������

4,0� 10,0�

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D

isoPV1685xxx_D00007_04_M_XXEN/05.20173

9

0,5

1 kHz

3 kHz

6 kHz

��

iagrams

4

.3 Response time for residual current measurement (isoPV1685PFR only)

0,5

0,55

0,6

0,65

0,7

0,75

0,8

0,85

0,9

0,95

1

0,20,1

)*/A

t an/ s

isoPV1685������� ����������������� ����������������������

D

isoPV1685xxx_D00007_04_M_XXEN/05.20173

9

012 3.5.12 10:0727.4.12 13:59

Stop Time

e me sage

End me of the message

iagrams

5

.4 Example of alarms stored in the history memory

Idx:232 ID:34 No CT connected =104 =104 None 2.5.12 13:45 02.05.2Idx:231 ID:43 Insula on fault <200 =200 Ω None 27.4.12 13:59 --

Index ID Alarm Min Max Unit Start TimeTest Ack. Time

Index in the history memory

ID

Unit Alarm type

Message due to Test

Minimum valueduring alarm

Minimum valueduring alarm

Start me of the message

Acknowledgof the mes

isoPV1685xxx_D00007_04_M_XXEN/05.2017

36

10. Factory settings

ParametersValueStatus

isoPV1685P(FR):can be set via

isoPV1685RTU:can be set via

Insulation response value Ran1 10 kΩ BMS, CAN BMS, Modbus, CAN

Insulation response value Ran2 1 kΩ BMS, CAN BMS, Modbus, CAN

isoPV1685PFR only:Residual current response value IΔn1

1 A BMS, CAN –

isoPV1685PFR only:Residual current response value IΔn2

5 A BMS, CAN –

Fault memory insulation measurement off BMS BMS, Modbus

isoPV1685PFR only:Fault memory residual current measurement

off BMS –

isoPV1685PFR only:Transformer monitoring

on BMS –

Relay K1 (11/12/14) N/C operation BMS BMS, Modbus

Relay K2 (21/22/24) N/C operation BMS BMS, Modbus

Relay K3 (31/32/34) N/C operation – –

isoPV1685P(FR) only:EDS mode

auto BMS –

isoPV1685PFR only:PGH current

30 mA BMS –

isoPV1685PFR only:Standby mode (disconnection from the mains)

off BMS –

Reset to factory settings --- BMS BMS, Modbus

BMS address 2 SS8103 SS8103

BMS termination ON RS485 Term. SS8103

CAN termination OFF CAN1, CAN2 –

Permissible system leakage capacitance ≤ 500 μF SS8103 SS8103

Measurement speed Fast SS8103 SS8103

Time not defined CAN BMS, Modbus

isoPV1685xxx_D00007_04_M_XXEN/05.2017

1

1

(

InInRaRa

VNoToSuPo

MMMInImPePe

RReReUpReReReHy

isMeasuring circuit for insulation fault location (EDS)

.............................................................................................................................................. 1 Ωg........................................................................................................................................... 20.............................................................................................................................................. 10

al current measurement (AC instantaneous tripping)ewarning) ................................................................................................... 1 A…5 A (1 A)*arm) ............................................................................................................. 1 A…5 A (5 A)*.......................................................................................................................................... ±1 A........................................................................................................................................... ≤ 1s.......................................................................................................................................... 25 %

g current transformers........................................................................................................................................ ≤ 3 m

A locating current................................................................................................... 0.5...0.8 V

.................................................................................................................. 2x green, 4 x yellowand log files .......................................................................................................... ≤ 32 GByte

................................................................................................................................. 10…30 V

................................................................................................................................... 0…0.5 V

................... isoPV1685RTU: RS-485/BMS(Slave)/Modbus RTU (Slave); Protocol switchable..................................................................................... isoPV1685P(FR): RS-485/BMS(Slave)

............................................................................................................................ terminals A/B.........................................................................................................................................................................................Shield: terminal S

.................................................................................................................................≤ 1200 m on one end) ........................................................... 2-core, ≥0.6 mm2, e.g. J-Y(St)Y2x0.6

S485 Term.) ................................................................................................... 120 Ω (0.5 W)stable (DIP switch) ....................................................................isoPV1685RTU: 2…17 ( 2)*switch).................................................................................... isoPV1685P(FR): 2…33 ( 2)*

.................................................................................. acc. to SMA/Bender specification V2.5

...................................................................................................... CAN 2.0A 11-bit identifier

................................................................................................................................ 500 kBit/s connected in parallel....................................................................................... Pin 1: CAN-H

37

Locating current IL DC ................................................................................................................................................................. ≤ 50 mATest cycle/pause ................................................................................................................................................................................ 2/4 s

isoPV1685PFR only:Measuring circuit for residual current measurementExternal measuring current transformer ....................................................................................... type Ferroxcube T140/120/25-3E25 Rated insulation voltage (measuring current transformer) ............................................................................................................1500 VRated frequency ........................................................................................................................................................................ 1…6 kHzRated continuous thermal current Icth ..............................................................................................................................................150 AOperating uncertainty ................................................................................................................................................................ 0…35 %

Cable length ..............................................Shielded cable (shield to functional earthTerminating resistor, can be connected ( RDevice address, BMS bus or Modbus adjuDevice address, BMS bus adjustable (DIP CAN:Protocol ......................................................Frame format ............................................Baud rate ....................................................Connection via 2 x RJ45 acc. to CiA-303-1

Technical data1. Technical data

1.1 isoPV1685... data in tabular form

)* = factory settings

sulation coordination acc. to IEC 60664-1 IEC 60664-3sulation coordination according to IEC 60664-1ted voltage.............................................................................................................................................................................. DC 1500 Vted impulse voltage/pollution degree......................................................................................................................................... 8 kV/2

oltage rangesminal system voltage Un ..................................................................................................................................................DC 0...1500 Vlerance of Un ........................................................................................................................................................................... DC +6 %pply voltage Us (see also device nameplate) .................................................................................................................... DC 18...30 Vwer consumption ....................................................................................................................................................................... ≤ 7 W

easuring circuit for insulation monitoringeasuring voltage Um (peak value) ............................................................................................................................................... ±50 Veasuring current Im (at RF = 0 Ω)........................................................................................................................................... ≤ 1.5 mAternal DC resistance Ri .............................................................................................................................................................. ≥ 70 k Ωpedance Zi at 50 Hz .................................................................................................................................................................. ≥ 70 k Ωrmissible extraneous DC voltage Ufg................................................................................................................................. ≤ DC 1500 Vrmissible system leakage capacitance Ce ........................................................................................................... ≤ 2 000 μF (500 μF)*

esponse values for insulation monitoringsponse value Ran1 (alarm 1) ............................................................................................................................ 200 Ω…1 MΩ (10 kΩ)*sponse value Ran2 (alarm 2) .............................................................................................................................. 200 Ω…1 MΩ (1 kΩ)*per limit of the measuring range when set to Cemax = 2000 μF ............................................................................................... 50 kΩlative uncertainty (10 kΩ…1 MΩ) (acc. to IEC 61557-8)........................................................................................................ ±15 %lative uncertainty (0.2 kΩ…< 10 kΩ) ...................................................................................................................... ±200 Ω ±15 %sponse time tan ................................................................................................................................................................... see page 32steresis ............................................................................................................................................................................. 25 %, +1 k Ω

oPV1685PFR only:

Load .........................................................Number of turns of measurement windinNumber of turns of test winding .............

isoPV1685PFR only:Response values for residuRated residual operating current IΔn1 (prRated residual operating current IΔn2 (alRelative uncertainty .................................Response time tan ...................................Hysteresis .................................................

isoPV1685PFR only:Cable lengths for measurinCable length ............................................

isoPV1685PFR only:Test windingOutput voltage across kT/lT at max. 40 m

Displays, memoryLEDs for alarms and operating states .....μSD card (spec. 2.0) for history memory

InputsDigital inputs DigIn1/DigIn2: High level ................................................Low level .................................................

Serial interfacesBMS/Modbus:Interface/protocol ...................................Interface/protocol ....................................Connection ...............................................

T

isoPV1685xxx_D00007_04_M_XXEN/05.20173

..

..CACaShTePo

SSw....

OpOpCoUtRaRaM

FoUtACACACDC

CCoCoCoCo

Connection of the system couplingCoCoCoCoStOp

............................................................................................................... IEC 61326-2-4 Ed. 1.0o IEC 60721:ter, icing. Condensation possible temporarily:

..............................................................................................................................................3K5

............................................................................................................................................. 2K3

............................................................................................................................................. 1K4cc. to IEC 60721:............................................................................................................................................ 3M4............................................................................................................................................ 2M2........................................................................................................................................... 1M3tic conditions:......................................................................................................................... –40…+70 °C......................................................................................................................... –40…+80 °C ....................................................................................................................... –25 …+80 °C.............................................................................................................................. 10…100 %.................................................................................... 700...1060 hPa (max. height 4000 m)

............................................................................................................... continuous operation

.............................................................................................. vertical, system coupling on top

.................................................................................................... lens head screw DIN7985TX

.......................................................................................................................................4.5 Nmts........................................................................................................................................ IP30............................................................................................................................................ IP30.................................................................................................................................. ≤ 1300 g

8

nnection type....................................................................................................................................... pluggable push-wire terminalsnnection, rigid/flexible................................................................................................................................ 0.2...10 mm2/0.2...6 mm2

nnection, flexible with ferrule, without/with plastic sleeve ................................................................... 0.25...6 mm2/0.25...4 mm2

nductor sizes (AWG) .................................................................................................................................................................. 24…8ripping length.............................................................................................................................................................................. 15 mmening force ......................................................................................................................................................................... 90…120 N

Technical dataechnical data

............................................................................................................................................................................................. Pin 2: CAN-L

.................................................................................................................................................................................... Pin 3, 7: CAN-GNDN identifier permanently set acc. to the specification aboveble length ................................................................................................................................................................................. ≤ 130 mielded cable ......................................................................................................................................................... CAT 5 with RJ45 plugrminating resistor, can be connected (Term. CAN) ........................................................................................................ 120 Ω (0.5 W)tential of the socket housing........................................................................................................................ functional earth potential

witching elementsitching elements.............................................................................................................3 changeover contacts: K1 (insulation fault),

................................................................. K2 (isoPV1685P & isoPV1685RTU: insulation fault, isoPV1685PFR: residual current fault),

........................................................................................................................................................................................K3 (device error)erating principle K1, K2 ....................................................................................... N/C operation or N/O operation (N/C operation)*erating principle K3 ....................................................................................................................... N/C operation, cannot be changed ntact data acc. to IEC 60947-5-1:ilisation category .................................................................................................. AC 13...... AC 14..... DC-12 ..... DC-12 ......... DC-12ted operational voltage ....................................................................................... 230 V ..... 230 V.....24 V ......... 110 V .............220 Vted operational current ........................................................................................ 5 A ......... 3 A ......... 1 A .......... 0.2 A ............. 0.1 Ainimum contact rating ...................................................................................................................................... 1 mA at AC/DC ≥ 10 V

r UL application:ilisation category for AC control circuits with 50/60 Hz (Pilot duty) ........................................................................................... B300 load of the alarm relay outputs ............................................................................. AC 240 V, 1.5 A in case of a power factor of 0.35 load of the alarm relay outputs ................................................................................ AC 120 V, 3 A in case of a power factor of 0.35 load of the alarm relay outputs ................................................................... AC 250 V, 8 A in case of a power factor of 0.75 to 0.80 load of the alarm relay outputs .................................................................................................... DC 30 V, 8 A in case of ohmic load

onnection (except system coupling)nnection type....................................................................................................................................... pluggable push-wire terminalsnnection, rigid/flexible............................................................................................................................ 0.2...2.5 mm2/0.2...2.5 mm2

nnection, flexible with ferrule, without/with plastic sleeve........................................................................................ 0.25...2.5 mm2

nductor sizes (AWG) .................................................................................................................................................................24…12

Environment/EMCEMC ..........................................................Classification of climatic conditions acc. tWithout solar radiation, precipitation, waStationary use (IEC 60721-3-3) .............Transport (IEC 60721-3-2) .....................Long-term storage (IEC 60721-3-1).......Classification of mechanical conditions aStationary use (IEC 60721-3-3) ..............Transport (IEC 60721-3-2) ......................Long-term storage (IEC 60721-3-1).......Deviation from the classification of climaAmbient temperature during operation .Ambient temperature transport ..............Ambient temperature long-term storageRelative humidity ....................................Atmospheric pressure...............................

OtherOperating mode .......................................Position of normal use ..............................PCB fixation ...............................................Tightening torque .....................................Degree of protection, internal componenDegree of protection, terminals...............Weight ......................................................( )* = factory settings

T

isoPV1685xxx_D00007_04_M_XXEN/05.20173

1T

1

T

9

he data labelled with an * are absolute values

Technical dataechnical data

1.2 Standards, approvals and certificationshe isoPV1685 was designed according to the following standards:

• DIN EN 61557-8 (VDE 0413-8)

• IEC 61557-8

• IEC 61557-9

• IEC 61326-2-4

• IEC 60730-1

• DIN EN 60664-1 (VDE 0110-1)

• UL1998 (software) (isoPV1685RTU only)

1.3 Ordering details

TypeResponse value

rangeSupply voltage * Art. No.

isoPV1685RTU-425 200 Ω…1 MΩ DC 18…30 V B91065603

isoPV1685P-425 200 Ω…1 MΩ DC 18…30 V B91065604

isoPV1685PFR-425 200 Ω…1 MΩ DC 18…30 V B91065600

for isoPV1685RTU only

isoPV1685xxx_D00007_04_M_XXEN/05.2017

INAAAA

BB

B

CCCCCC

DDDDIP switch 16

e 17 110

2

enclosure 17or 11

ission to the control inputs of the inverter 11

t 30

O

40

Display and operating controls 26

EError codes 19

FFactory settings 19Functional description 10

Operating elementsButton 16DIP switch 16Memory card 16

Operating messages 26Ordering details 39

DEX

ddress setting 8larm messages 26larm relays K1, K2, K3 11

MS busAlarm messages 26Commissioning 25Master 24Number of bus nodes 24Operating messages 26Protocol 24terminate 23wire 23

utton 16

able routing through the measuring current transformer 18AN bus termination 27haracteristic curves 39ommissioning flow chart 19onnection of the device 17

evice features 9imension diagram 17

HHistory memory 11

IInstallation of the devicInsulation fault locationInsulation monitoring 1iso1685FR set 22

LLeakage capacitance 3LEDs

ALARM 1 16ALARM 2 16ON 16PGH ON 16SERVICE 16

LEDs on the top of the Locating current inject

MMeasured value transmMemory card 16Micro-SD card 10Modbus RTU 28

Register assignmen

In

isoPV1685xxx_D00007_04_M_XXEN/05.20174

PPP

RRRR

RR

SSS

SSSSSStandards 39SS

TTteTT

of the BMS bus 23

rical installations 7

1

tandby mode 11tart firmware update 26

echnical data 37rminated RS-485 network 23

erminating resistor 23ermination 8

dex Index

arameter setting of the insulation fault location 21roduct description 9

esetting error messages 26esidual current monitoring 11esponse time

Insulation measurement 32Residual current measurement 34

S-485 interface 23S-485 network

Correct arrangement 24Wrong arrangement 24

afety instructions 7elf test

after connection to the supply voltage 12Automatic 12Manual 12

ervice lid 16et permissible system leakage capacitance 26etting measurement speed 20etting the maximum system leakage capacitance 20oftware iso1685FR set 22

WWiring and terminationWiring diagram 18Work activities on elect

ZμSD card 16

Photos: Bender archive and bendersystembau archive.

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