isometer® isoev425 with agh420 coupling device - bender · isometer® isoev425 with agh420...

ManualEN

isoEV425_D00126_01_M_XXEN/08.2014

ISOMETER® isoEV425with AGH420 coupling device

Insulation monitoring device for unearthed DC circuits (IT systems) for the charging of electric vehicles Software version: D430 V1.0x

Bender GmbH & Co. KGLondorfer Str. 65 • 35305 Gruenberg • GermanyPostfach 1161 • 35301 Gruenberg • Germany

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

E-Mail: [email protected]: http://www.bender.de http://www.bender-emobility.com

© Bender GmbH & Co. KG

All rights reserved.Reprinting only with permissionof the publisher.Subject to change!

http://www.bender-de.com

Table of Contents

1. Making effective use of this document ....................................................... 11.1 How to use this manual ................................................................................. 11.2 Information about factory setting ............................................................. 1

2. Safety instructions ........................................................................................... 32.1 General safety instructions ........................................................................... 32.2 Work activities on electrical installations ................................................ 32.3 High surface temperature due to operational conditions ................ 32.4 Intended use ...................................................................................................... 4

3. Function ............................................................................................................. 53.1 Device features ................................................................................................. 53.2 Description of function .................................................................................. 53.2.1 Undervoltage/overvoltage monitoring ................................................... 73.2.2 Connection monitoring ................................................................................. 73.2.3 Self test - automatic ......................................................................................... 73.2.4 Self test - manual .............................................................................................. 83.2.5 Malfunction ........................................................................................................ 83.2.6 Assigning alarm categories to alarm relays K1/K2 ............................... 83.2.7 Time delays t, ton and toff .......................................................................... 83.2.8 Password protection (on, OFF) .................................................................... 93.2.9 Automatic adaptation of the measuring pulse duration ................... 93.2.10 Response time ................................................................................................... 93.2.11 Factory setting FAC ......................................................................................... 93.2.12 External, combined test resp. reset button T/R .................................... 93.2.13 Fault memory ................................................................................................. 103.2.14 History memory HiS ...................................................................................... 103.2.15 Testing at system startup ........................................................................... 10

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Table of Contents

4. Installation, connection and commissioning ........................................... 114.1 Installation ....................................................................................................... 114.2 Connection ...................................................................................................... 134.3 Commissioning .............................................................................................. 16

5. Operation and configuration ...................................................................... 175.1 Factory setting ................................................................................................ 175.2 Getting to know the user interface ......................................................... 185.3 Understand information on the display ................................................ 195.3.1 Querying measured values ........................................................................ 195.3.2 Alarm display when an insulation fault has been detected .......... 225.4 Display in menu mode ................................................................................ 235.4.1 Querying and setting parameters: Overview ...................................... 235.4.2 Navigation within the menu ..................................................................... 245.4.3 Selecting menus ............................................................................................ 285.4.4 Making settings in the AL menu .............................................................. 305.4.5 Making settings in the out menu ............................................................ 325.4.6 Making settings in menu t ......................................................................... 375.4.7 Making settings in the SEt menu ............................................................. 395.4.8 Querying software number and software version with the INF

menu .................................................................................................................. 435.4.9 Querying an erasing the history memory in the HiS menu ........... 43

6. Technical data ................................................................................................ 456.1 Technical data isoEV425 ............................................................................. 456.2 Technical data AGH420 ............................................................................... 496.3 Standards, approvals and certifications ................................................ 516.4 Ordering information ................................................................................... 516.5 Error codes ....................................................................................................... 52

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1. Making effective use of this document

1. 1 How to use this manual

This manual is intended for electrically skilled persons working in electrical engineering and electronics!

To make it easier for you to understand and revisit certain sections of text and instructions in the manual, we have used symbols to identify important in-structions and information. The meaning of these symbols is explained below:

1. 2 Information about factory settingPage 17 provides a summary of all factory settings.If you want to reset the ISOMETER® to its factory setting in a specific case, refer to page 42.

Information calling attention to hazards is marked withthis warning symbol.

Information intended to assist the user to make optimumuse of the product are marked with the Info symbol.

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Making effective use of this document

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2. Safety instructions

2. 1 General safety instructionsIn addition to these operating instructions, the "Important safety instructions for Bender products“, which are also included in the scope of supply, are an integral part of the device documentation.

2. 2 Work activities on electrical installations

Only skilled persons are permitted to carry out the work necessary to install, commission and run a device or system.

Compliance with the applicable regulations governing work on electri-cal installations and with the regulations derived and associated with them, is mandatory. EN50110 is of particular importance in this regard.

If the device is being used in a location outside the Federal Republic of Germany, the applicable local standards and regulations must be com-plied with. European standard EN 50110 can be used as a guide.

2. 3 High surface temperature due to operational condi-tions

Danger as a result of unprofessional work!Failure to carry out work on electrical installations prop-erly and correctly can put life and limb at risk! Therefore,observe the following safety instructions!

Danger from touching hot surfaces!If the AGH420 is operated at system voltages > 800 V, thetemperature of the enclosure may exceed 60 °C. Once the device is connected to mains voltage avoidtouching the device‘s surfaces.

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Safety instructions

2. 4 Intended useThe isoEV425 ISOMETER® series monitors the insulation resistance of un-earthed (IT system) DC charging stations for electric vehicles in the range DC 0 V ... 1100 V from the loading station to the motor (AC 0 V ... 793 V). A separate supply voltage allows de-energised systems to be also monitored .

The maximum allowable system leakage capacitance is 5 μF.

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3. Function

3. 1 Device features Insulation monitoring of unearthed DC charging stations for electric

vehicles (Mode 4 according to IEC 61851-23) The isoEV425 is always used in conjunction with the AGH420 Two separately adjustable response ranges of 1…500 kΩ (Alarm 1,

Alarm 2) Factory setting 100 kΩ / 500 kΩ Automatic adaptation to the system leakage capacitance up to 5 μF Measured value display via multi-functional LCD Measurement of the nominal system voltage (RMS) with undervoltage

and overvoltage detection Measurement of DC voltages, system to earth (L+/PE and L-/PE) Alarm signalling via LEDs (AL1, AL2), display and alarm relays (K1, K2) N/C operation or N/O operation selectable Automatic device self test BMS interface (Bender measuring device interface) for data exchange

with other Bender components; RS-485 electrically isolated Start-up delay, response delay and delay on release Password protection to prevent unauthorised changes being made to

device settings Fault memory can be activated Connection monitoring

3. 2 Description of functionThe isoEV425 runs a device test when the supply voltage is connected and the start-up delay has elapsed. Then, the insulation resistance of the system is de-termined.

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Function

When the values are below the set response values Ran1/Ran2 respectively, the response delay ton begins. Once the response delay ton has elapsed, the alarm relays K1/K2 switch and the alarm LEDs AL1/AL2 light up.

A fault at conductor L+ or L– or a symmetrical insulation fault is shown on the display. In case of asymmetrical DC faults, a signed insulation value appears, which depends on the mains voltage (≥100 V) and the insulation fault (< 100 kΩ). Pressing the arrow up and down button allows scrolling up or down up to the percentage value via the division of the insulation resistance. The value range displayed extends from -100 % through 0 % to +100 %:

The resistance value can be calculated using the following formulas:

Relating the faults at the conductors L+ or L– to each other may give an indi-cation of the point of fault , also refer to the display in line 11 of the table on page 21.It is possible to assign the detected fault resp. the faulty conductor to an alarm relay via the menu.

If the insulation resistance exceeds the release value (response value plus hys-teresis) the release delay toff begins. When the release delay has elapsed, the alarm relays will switch back to their initial state and the alarm LEDs AL1/AL2 will go out. If the fault memory is activated, the alarm relays will not switch back and the LEDs will not go out until the reset button R is pressed or the supply voltage is interrupted.The device function can be tested using the test button T. Parameters are assigned to the device via the LCD and the control buttons on the front panel; this function can be password-protected. Parameterisation is also possible via the BMS bus using the BMS Ethernet gateway, e.g. COM460IP.

Displays Meaning–100 % one-side fault at conductor L-

0 % symmetrical fault+100 % one-side fault at conductor L+

Fault at conductor L– RF (–) = (200 % * RF)/(100 % – R %)

Fault at conductor L+ RF (+) = (200 % * RF)/(100 % + R %)

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Function

3.2.1 Undervoltage/overvoltage monitoringIn the response value menu AL both parameters can be activated resp. deac-tivated. The maximum undervoltage value is limited by the overvoltage value.

3.2.2 Connection monitoringAfter connecting to the supply voltage, the following connections are checked periodically, every 24 h (can be adjusted) or by pressing the test button T:

– System connection L1(+)/L2(–)– PE connection E/KE

In case of interruption of a connecting lead, the alarm relay K2 switches, the LEDs ON/AL1/AL2 flash and a fault message appears on the LC display:E.01 = Connection fault PEE.02 = Connection to the system or connection between isoEV425 and

AGH420 incorrectE.07 = Fault system leakage capacitance Ce > 5 μFE.xx = Internal device errorOnce the fault has been eliminated and the reset button has been activated, the alarm relays will switch back to the initial state either automatically or by pressing the reset button.Connection monitoring can be switched off in the menu nEt, if required, see page 41.

3.2.3 Self test - automaticThe device runs a self test after connecting to the system to be monitored and later every 24 hours (selectable): Any internal malfunctions detected are shown on the display as error codes. The alarm relays are not switched during this test.

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Function

3.2.4 Self test - manualThe device runs a self test when the test button is pressed > 1.5 s. Any internal malfunctions detected are shown on the display as error codes. The alarm relays are not checked during this test (factory setting). It is possible to change this setting to on in the out menu, also see line 26 on page 36. Consequently, the alarm relays would switch during the manual self test.Whilst the internal test button T is pressed and held down, all display elements available for this device are shown. When the button is released the tES symbol appears and the manual test commences.

3.2.5 MalfunctionIn the event of an internal malfunction, all three LEDs will flash. An error code will appear on the display, refer to page 52.

3.2.6 Assigning alarm categories to alarm relays K1/K2The alarm categories device error, insulation fault, undervoltage/overvoltage or alarm by device test can be assigned to the alarm relays via the out menu.

3.2.7 Time delays t, ton and toffThe times t, ton and toff, described below, delay alarm signalling via LEDs and relays.

Start-up delay tAfter connection to the supply voltage US, the alarm indication is delayed by the preset time t (0…10 s).

Response delay tonWhen the value drops below or exceeds the response value, the device has a response time tan that must have elapsed before an alarm is activated. A set response delay ton (0…99 s) adds up to the device-related operating time tae and delays alarm signalling (total delay time tan = tae + ton).If the insulation fault does not continue to exist during the response delay, no alarm will be signalled.

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Function

Delay on release toffIf the alarm no longer exists during the response delay and the fault memory is deactivated, the alarm LEDs will go out and the alarm relays switch back to their initial state. After activating the delay on release (0…99 s), the alarm state is continuously maintained for the selected period. If the alarm occurs again during the delay on release, the device remains in the alarm state.

3.2.8 Password protection (on, OFF)If password protection has been activated (on), settings can only be made subject to the correct password being entered (0…999).

3.2.9 Automatic adaptation of the measuring pulse durationAfter connection to the supply voltage, the isoEV425 automatically adjusts it-self to the leakage capacitance and the insulation resistance of the system to be monitored. This consequently determines the shortest pulse duration. In case of interferences, the measuring times will be prolonged. Moreover, capacitance measurement is no longer possible.

3.2.10 Response timeThe response time tan depends on the insulation resistance and the leakage capacitance. For example, in a DC 600 V network with a maximum permissible leakage capacitance of Ce = 5 μF and an insulation fault with RF = 50 kΩ (Ran = 100 kΩ), the response time is tan < 10 s.Higher leakage capacitances and interferences will result in increased response times.

3.2.11 Factory setting FACActivating the factory setting will reset all modified settings, except for the BMS address, to the default upon delivery.

3.2.12 External, combined test resp. reset button T/RReset = Pressing the external button < 1.5 sTest = Pressing the external button > 1.5 s

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Function

3.2.13 Fault memoryIt can be activated or deactivated (menu: out/M). Stored alarms can be reset by means of the reset button R.

3.2.14 History memory HiSIn the event of a fault, the history memory provides space for exactly one data record of all current measured values. On the occurrence of the first fault, all associated measured values from the fault memory will be saved in the history memory. This data can be read out using the HiS menu. A new data record of a fault that occurred later can only be recorded after clearing the history mem-ory via the menu using Clr. See menu HiS from page 43.

3.2.15 Testing at system startupAt initial power-up, the device performs a self-test and an adjustment to the IT network to be monitored, a process that may take up to 4 minutes for sytems with large leakage capacitances. Once this has been completed, the latest insulation resistance appears as the default display. The self-test detects internal malfunctions and represents them as an error code on the display. The alarm relay will not be tested. The self-test is then car-ried out every 24 hours (i.e. selectable: off, 1 h, 24 h); this can be activated or deactivated.

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4. Installation, connection and commissioning

4. 1 Installation Mounting on a DIN rail:

Snap the mounting clip at the rear of the device onto the DIN rail so that it sits securely.

Screw fixing:Use a tool to position the rear mounting clips (a second. mounting clip is required, see ordering information) so that it protrudes over the enclosure. Fix the device with two M4 screws, see the following sketch.

Risk of electric shock!Touching uninsulated live conductors can result in death or seri-ous injury. Therefore avoid any physical contact with active con-ductors and ensure compliance with the regulations for workingon electrical installations.

Risk due to hot surfaces!If the AGH420 is operated at system voltages > 800 V, the enclo-sure temperature may exceed 60 °C. Therefore, a minimum dis-tance of 30 mm is required between all sides of the enclosure andother devices.

The isoEV425 is a device of EMC Limit Class B and is intended foruse in residential environments. Make sure a shielded cable isused when connecting to the RS-485 interface. The shield mustbe grounded.

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Installation, connection and commissioning

Dimension diagram, sketch for screw mounting, push-wire terminal connection:

The front plate cover is easy to open at the lower part marked by an arrow.

90 m

m

4567

.5

36 mm31.1

47.570.5

2

2

Click

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4. 2 ConnectionConnect the terminals A1 and A2 to the supply voltage according toIEC 60364-4-43, i.e. the connections are to be protected against short-circuit by means of a protective device (a 6 A fuse is recommended).Devices for protection against short-circuit in conformity with IEC 60364-4-43 for the coupling of terminals L1/L2 of AGH420 to the IT system to be moni-tored can be omitted if the wiring is carried out in such a manner as to reduce the risk of a short-circuit to a minimum.

Only one ISOMETER® may be controlled via a test/reset button. It is not allowed to use a parallel connection of several test or reset inputs for testing multiple ISOMETER®s.

For UL application:Only use 60/70°C copper lines!For UL and CSA applications, it is mandatory to use 5 A fuse for the protection of the supply voltage.

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Connect the device as illustrated in the wiring diagram:

Requirements for wiring the terminals Up, AK1, GND, AK2:

Cable length Cable type Wire cross section≤ 0.5 m 1 or 4-core ≥ 0.75mm2

≤ 5 m 4-core 2.5mm2

US

14 24 11

GND

T/R A B

AK2

AK1

E

GND

L1/+

L2/-

L1/+

E KE A1 A2

AK1AK2 GND

14 24 11

K1 K2

Up

GND AK1 AK2

UpUp

Up

T/R

isoEV425AGH420

AK1

AK2

Test / Reset

COM460IP

onoff

L2/

RS-485

E

E

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For details about the conductor cross sections for wiring refer to page 47.

Terminal Connections

A1, A2

Connection to the supply voltage via a safety fuse (line protec-tion).If being supplied from an IT system, both lines have to be pro-tected by a fuse.

E, E, KE Connect each terminal separately to PE

UPAK1

GNDAK2

Connect the terminals of AGH420 to the corresponding termi-nals of the isoEV425 for detailed description refer to the wiring info below the wiring diagram.

L1/+, L2/– Connection to the AC or DC system to be monitored

T/R Connection for the external combined test and reset button

11, 14 Connection to alarm relay K1

11, 24 Connection to alarm relay K2

A, BConnection RS-485 (BMS bus) with terminating switch R (on/off) (off = delivery setting) Example: Connection of a BMS-Ethernet gateway COM460IP

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4. 3 Commissioning1. Check that the ISOMETER® and coupling device is properly connected

to the system to be monitored.2. Connect the supply voltage to the ISOMETER®.

The device carries out a calibration, a self test and adjustment to the IT system to be monitored. When high system leakage capacitances are involved, this procedure may take up about 4 minutes, then the stand-ard display appears showing the present insulation resistance, e.g.:

The pulse symbol signals an error-free update of the resistance and capacitance measured values. If the measured value cannot be updated due to disturbances, the pulse symbol will be blanked.

3. Start a manual self test by pressing the test button "T". Whilst the test button is pressed and held down, all display elements available for this device are shown. When the button is released, the "tES" symbol appears and the manual self test commences. Any internal malfunc-tions detected are shown on the display as error codes, see page 52. The alarm relays are not checked during this test (factory setting). The setting can be changed in the out menu, so that the relays switch dur-ing the manual self test.

4. Check factory setting for suitability.Are the settings suitable for the installation to be monitored?List of factory settings, see page 17.

5. Check the function using a genuine insulation fault.Check the ISOMETER® and the coupling device in the system being monitored against earth, e.g. via a suitable resistance.

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5. Operation and configuration

5. 1 Factory settingThe most important settings are summarised below.For a complete list refer to page 25.

If necessary, you can switch to the menu mode using the "MENU" button where you can adapt the parameters to be changed to their application.For details about operation or alarm signalling refer to page 23.

Response value Ran1 (prewarning):Response value Ran2 (alarm):Undervoltage:Overvoltage:Fault memory M:Operating mode K1/K2:BMS address:Start-up delay t:Response delay ton (K1+K2):Delay on release toff (K1+K2):Repetition time self test:Password protection/password:Monitor network connection:Calibration and self test at device startup:

500 kΩ100 kΩdeactivated deactivateddeactivatedN/C operation (n.c.)3≤ 0 s≤ 0 s≤ 0 s24 hdeactivated / (0)activated

activated

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Operation and configuration

5. 2 Getting to know the user interfaceUser interface Element Function

ONgreen

Lights continuously: Power On LED;Flashes: system fault or malfunction of connection monitoring

AL1yellow

AL2yellow

LED Alarm 1 lights continuously: response value 1 reached, manual self test;LED Alarm 1 flashes: overvoltage or system faultLED Alarm 2 lights continuously: response value 2 reached, manual self test; LED Alarm 2 flashes: undervoltage or system fault

38 kΩ Latest measured insulation resistance RFThe pulse symbol signals an error-free measuring value update

t Test button (press > 1.5 s): show the display elements available for this device, start a self test Arrow up button (press < 1.5 s): menus upwards/increase values

R Reset button (press > 1.5 s): erase the fault memory; Down button (press < 1.5 s): menus downwards/decrease values.

MENU MENU button (press > 1.5 s)Start the menu modeEnter button (< 1.5 s):confirm the menu, sub menu and value.Enter button (press > 1.5 s):back to the next higher menu level

ON AL1 AL2

t MENUR

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5. 3 Understand information on the display

1. Display field of measurement modes:U = mains voltage, R = insulation resistance, C = leakage capacitance

2. Display field of the conductors being monitored3. - Display of the voltage type DC (=) in the system being monitored

- Display of the pulse symbol for error-free measurement value update- Display of voltage type AC (~) in the system being monitored

4. Display field for measured values and units5. Password protection is activated6. In the menu mode, the operating mode of the respective alarm relay is

displayed, the example shows N/C operation n.c.7. In the menu mode the BMS address is displayed8. The fault memory is activated9. Symbols appearing in the menu mode, indicating a condition.

5.3.1 Querying measured valuesThe standard display shows the actual measured insulation resistance in its default setting. The measured values can be queried by scrolling with the UP or DOWN button. A display showing modified measurment values is automat-ically replaced with the standard display after 5 s.

+

test onoff MAdr

L1L2C

<>

skM %

Fµ

{ { {

{

1 2 3

4

5678

{9

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The flashing areas of the display are addi-tionally grey-shaded in the table below.

Measured variable Measured value

Explanation/additional information

1. Insulation resistance

2. Switch display

3. Leakage capacitance

4. Switch display

5. System voltage L1/+ to L2/–

Example:Display of the r.m.s. value VRMS in the AC system

6. Switch display

7. System voltage L1/+ to PE Display of the DC value VDC

8. Switch display

L1L2

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9. System voltage L2/– to PE; Display of the DC value VDC

10. Switch display

11. Percentage indication of the point of insulation fault with regard to L+ or L–

The value will only be displayed when the DC mains voltage measured is ≥ 100 V

12. Switch display Return to the insulation resistance display

13. Approximate unsymmetrical insulation resistance based on the residual voltage

This value is displayed when the measured DC supply voltage ≥ 100 V

14. Change display Return to the insulation resistance display

Measured variable Measured value

Explanation/additional information

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5.3.2 Alarm display when an insulation fault has been detected

When the value falls below the response value Ran1 the LED AL1 signals a prewarning. When the value of the insulation resistance measured falls below the response value Ran2 too, the LED AL2 signals an alarm.The display shows the currently measured insu-lation resistance. In addition, the pulse symbol on the display shows that the measured value update has been carried out properly.

= LED lights up

kR

ON AL1 AL2

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5. 4 Display in menu mode

5.4.1 Querying and setting parameters: Overview

Menu Configurable parameter

ALQuerying and setting response values:

– Insulation resistance Ran1 (AL1) and Ran2 (AL2)– Undervoltage and overvoltage

out

Configuring the fault memory and the alarm relay:– Activate/deactivate the fault memory– Select N/O operation (n.o.) or N/C operation (n.c.) individu-

ally for each K1 and K2– Set BMS address– Assign the alarm categories Ran1 (AL1) or Ran2 (AL2), und-

ervoltage/overvoltage or device error individually to the alarm relays K1/K2

t

Setting delay times and the self test cycle:– Start-up delay t– Response delay ton (K1+K2)– Delay on release toff (K1+K2)– Repetition time self test

SEt

Setting parameters for device control:– Activate or deactivate password protection, change password– Switch the connection monitoring for the system on or off– Restore factory settings– Service menu SyS (for Bender Service only)– Test at device power on or power off

InF Querying software version

HiS Querying and clearing the history memory, also see page 10

ESC Go to the next highest menu level (back)

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5.4.2 Navigation within the menuThe menu structure is illustrated briefly on the following pages.After pressing the "MENU" button for approx. 2 seconds the first menu item AL appears. The UP and DOWN buttons and the Enter button can be used for navigating between the menus and to carry out settings.

UP and DOWN button:- to navigate up or down in the menu settings- to increase or decrease values

MENU

Pressing the MENU/Enter button for more than 1.5 s:

- starts menu mode- or when the device is already in menu mode:

back to the next higher menu level. Any recent changes will not be saved

Pressing the MENU/Enter button less than 1.5 s:- confirms menu selection or

- confirms modified value

The areas of the display which can be configured flash! This isindicated by an oval marking in the illustrations below. Pressand hold down the MENU button > 1.5 s to enter menu mode.

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Factory setting

MenuSub-

menuMenu item

Acti-vation

Para-meter

Configurable parameter

AL –

< R1 – 500 kΩResponse value Ran1 (prewarning AL1)

< R2 – 100 kΩResponse value Ran2 (Alarm AL2)

< U OFF 30 V Undervoltage> U OFF 1000 V Overvoltage

out

–

M OFF Fault memory 1 - n.c. Operating mode K12 - n.c. Operating mode K2

Adr - 3 BMS device address

r1

Err1 off For K1: Device error

+R1 onFor K1: Prewarning Insulation fault at L1/+

–R1 onFor K1: Prewarning Insulation fault at L2/–

+R2 offFor K1: Alarm Insulation fault at L1/+

–R2 offFor K1: Alarm Insulation fault at L2/–

< U offFor K1: Alarm Undervoltage

> U offFor K1: Alarm Overvoltage

Test offFor K1: Alarm due to self test

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out r2

Err2 on For K2: Device error

+R1 offFor K2: Prewarning Insulation fault at L1/+

–R1 offFor K2: Prewarning Insulation fault at L2/–

+R2 onFor K2: Alarm Insulation fault at L1/+

–R2 onFor K2: Alarm Insulation fault at L2/–

< U onFor K2: Alarm Undervoltage

> U onFor K2: Alarm Overvoltage

Test offFor K2: Alarm due to self test

t

t - 0 s Start-up delayt on - 0 s Response delay K1+K2t off - 0 s Delay on release K1+K2Test - 24 h Repetition time self test

SetOFF 0 Password protection deactivated

nEt on Connection monitoring system

S.CT onCalibration and test at device startup

FAC - Run factory settingsSYS - For Bender-Service only

InF – – – – Display software version

Factory setting

MenuSub-

menuMenu item

Acti-vation

Para-meter


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HiS – Clr – – Display fault memory for the first alarm value; erasable

Factory setting

MenuSub-

menuMenu item

Acti-vation

Para-meter


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5.4.3 Selecting menusPress and hold down the MENU button for more than 1.5 seconds to call up the menu. Menus are available for a variety of settings. The out menu provides an additional menu level for each of the K1/K2 relays.

Menu/Button to call Description/Configurable parameters

Querying and setting response values: Prewarning insulation fault: < R1 Alarm insulation fault: < R2 Undervoltage: < U Overvoltage: > U

1. Press the UP/DOWN buttons to switch the menu.

Configuring the fault memory and the alarm relay: Activate/deactivate the fault memory M Select N/O operation (normally open) or N/C operation (normally

closed) individually for each K1/K2 Set the BMS address: Adr Assign alarm categories, such as insulation fault, voltage fault,

device error or fault according to self test, individually to K1/K2 (r1/ r2)


Set delays: Start-up delay t Response delay ton for K1/K2 Delay on release toff for K1/K2 Repetition time self test

3. Press the UP/DOWN buttons to go to the menu.

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Set parameters for device control Activate or deactivate password protection, change password Switch the monitoring function of the system connection on or off Calibration and test at device power on or power off Restore factory settings Service menu SyS for Bender Service only


Querying software version


Query saved alarm value, erase history memory


Go to the next highest menu level (Back).

Menu/Button to call Description/Configurable parameters

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5.4.4 Making settings in the AL menuWhen carrying out settings, take into account that: Ran2 is always smaller than Ran1, the response value for undervoltage is always smaller than the response value for overvoltage.

1. Select menu item AL.2. Change the parameters as illustrated.3. To go back to the menu level, press and hold down the Enter button for

more than 1.5 seconds once you have modified the parameter(s).

AL menu Select submenuActivate/deactivate pa-rameters

Change parameter value display

Change/apply pa-rameters

1. Set response value Ran1

2. Switch submenu

3. Set response value Ran2

4. Switch submenu

5. Set response value for undervoltage

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6. Switch submenu

7. Set response value for overvoltage

8. Switch submenu

9. Return to menu AL

AL menu Select submenuActivate/deactivate pa-rameters



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5.4.5 Making settings in the out menu1. Select the out menu.2. Change the parameters as illustrated.

To go back to the menu level after parameter change, press and hold down the MENU button for more than 1.5 seconds once you have modified the parameter(s).

out menu Select submenuChange/activate/deacti-vate/change parameters



1. Activate the fault memory

2. Deactivate the fault memory

3. Switch submenu

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4. Set the alarm relay K1 to N/O operation (n.o.).

5. Set the alarm relay K1 to N/C operation (n.c.)

6. Switch submenu

7. Set the alarm relay K2 to N/O operation (n.o.).




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8. Set alarm relay K2 to N/C operation (n.c.)

9. Switch submenu

10. Set BMS address

11. Switch submenu

12. Assign category device error to alarm relay K1

13. Switch category

14. Assign prewarning insulation fault at L1/+ to alarm relay K1




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15. Switch category

16. Assign prewarning insulation fault at L2/– to the alarm relay K1

17. Switch category

18. Assign alarm insulation fault at L1/+ to alarm relay K1

19. Switch category

20. Assign alarm insulation fault at L2/– to alarm relay K1

21. Switch category

22. Assign under-voltage fault to alarm relay K1

23. Switch category




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24. Assign overvoltage fault to alarm relay K1

25. Switch category

26. Assign self test to alarm relay K1

27. Switch category

28. Switch back to sub menu r1

29. Switch sub menu

30. Assign fault categories to alarm relay K2

Assignment is carried out in exactly the same way as for alarm relay K1

31. Switch submenu

32. Switch back to the out menu




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5.4.6 Making settings in menu t1. Select menu t. 2. Change the parameters as illustrated.3. To go back to the menu level after parameter change, press and hold

down the MENU button for more than 1.5 seconds once you have modified the parameter(s).

No alarm signalling due to deactivated alarm relayDeactivating an alarm relay (K1/K2) via the menu prevents alarmsignalling by the respective N/O contact! An alarm will be signalled by the respective alarm LED (AL1/AL2) only!Check the settings in the out menu!

Menu t Select submenuActivate/deactivate pa-rameters



1. Set start-up delay for device start

2. Switch submenu

3. Set the response delay for K1(set ton2 just like ton1)

4. Switch submenu

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5. Set delay on release K1/K2

6. Switch submenu

7. Set repetition time for self test

8. Switch submenu

9. Switch back to menu t

Menu t Select submenuActivate/deactivate pa-rameters



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5.4.7 Making settings in the SEt menu1. Select the SEt menu.2. Change the parameters as illustrated.3. To go back to the menu level after parameter change, press and hold

down the MENU button for more than 1.5 seconds once you have modified the parameter(s).

SEt menu Select submenuChange/activate/deacti-vate/change parame-ters



1. Activate password protection and assign pass-word (3-digit numerical code)

2. Change password

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3. Deactivate password protection

4. Switch submenu

5. Switch on the monitoring for system connection




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6. Switch off the monitoring function for sys-tem connection

7. Switch submenu

8. Test at device power down

9. Test at device power up




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10. Switch submenu

11. Restore factory setting

"run" appears on the display and the device is reset to the factory settings automatically

12. Switch submenu

13. System menu is locked

14. Switch submenu

15. Go back to SEt menu




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5.4.8 Querying software number and software version with the INF menu

1. Select the INF menu. The software number and software version is displayed as a running text. Once all information is shown on the display, you can use the UP/DOWN buttons to select individual data sections.

5.4.9 Querying an erasing the history memory in the HiS menu1. Select the HIS menu.2. Choose parameters according to table.3. To go back to the menu level, press and hold down the MENU button

for more than 1.5 seconds.

HiS menu Error display/submenuExplanation/

additional information

1. Query insulation resistance An additional + or – shows that the fault has been primarily detected on conductor L+ or L–

2. Switch error display

3. Query leakage capacitance


5. Query system voltage L1/+ against L2/–

Example:Display of the r.m.s. value VRMS in the AC system

<M

L1L2

43isoEV425_D00126_01_M_XXEN/08.2014



7. Query system voltage L1/+ against PE Display of the DC value VDC


9. Query system voltage L2/– against PE Display of the DC value VDC


11. Percentage indication of the point of insulation fault in relation to L+ or L–

The value will only be displayed when the DC mains voltage measured is ≥ 100 V


13. Erase the history memory


15. Go back to the HiS menu

HiS menu Error display/submenuExplanation/

additional information

44 isoEV425_D00126_01_M_XXEN/08.2014

Technical data

6. Technical data

6. 1 Technical data isoEV425( )* = factory setting ≤ 5 μF

Insulation coordination acc. to IEC 60664-1/IEC 60664-3Rated insulation voltage ....................................................................................................................................... 250 VRated impulse voltage .............................................................................................................................................. 4 kVOvervoltage category..................................................................................................................................................... IIIDegree of pollution .........................................................................................................................................................3Protective separation (reinforced insulation) between......(A1, A2) - (AK1, GND, AK2, Up, KE, T/R, A, B) - (11, 14, 24)Voltage tests, routine test (IEC 61010-1) ............................................................................................................. 2.2 kV

Supply voltageSupply voltage range Us ......................................................................................... AC 100…240 V / DC 24…240 VTolerance of Us ........................................................................................................................................ -20…+15 %Frequency range of Us .................................................................................................................................. 47…63 HzPower consumption ................................................................................................................................ ≤ 3 W, ≤ 9 VA

IT system being monitoredNominal system voltage Un with AGH420 ................................................................... AC 0…690 V/DC 0…1000 VTolerance of Un ........................................................................................................................... AC +15 %, DC +10 %Nominal system voltage Un with AGH420 (UL508)...........................................................................AC/DC 0…600 VFrequency range of Un ..........................................................................................................................DC, 40…460 HzPermissible system leakage capacitance ..................................................................................... ≤ 5 μF

Response valuesResponse value Ran1 (Alarm 1) ................................................................................................. 2…500 kΩ (500 kΩ)*Response value Ran2 (Alarm 2) .................................................................................................. 1…490 kΩ (100 kΩ)*Relative uncertainty .................................................................................................................. ± 15 %, at least ±1 kΩHysteresis ......................................................................................................................................... 25 %, at least 1 kΩUndervoltage detection............................................................................................................... 30 V…1.14 kV (off)*Overvoltage detection ................................................................................................................. 31 V…1.15 kV (off)*Relative uncertainty < 200 Hz .................................................................................................... ± 5 %, at least ± 5 VFrequency dependent relative uncertainty ≥ 200 Hz................................................................................-0.03 % / HzHysteresis ............................................................................................................................................. 5 %, at least 5 V

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Technical data

Time responseResponse time tan at RF = 0.5 x Ran and Ce=1 μF acc. to IEC 61557-8 ............................................................. ≤ 10 sStart-up delay t ...................................................................................................................................... 0…10 s (0 s)*Response delay ton ................................................................................................................................ 0…99 s (0 s)*Delay on release to ff............................................................................................................................... 0…99 s (0 s)*

Displays, memoryDisplay ..................................................................................................... LC display, multi-functional, not illuminatedDisplay range measured value insulation resistance ............................................................................... 1 kΩ…1 MΩOperating uncertainty............................................................................................................... ± 15 %, at least ±1 kΩDisplay range measured value nominal system voltage ............................................................. 30 V…1.15 kV RMSOperating uncertainty < 200 Hz ................................................................................................. ± 5 %, at least ± 5 VFrequency dependent operating uncertainty ≥ 200 Hz ............................................................................ -0.03% / HzDisplay range measured value system leakage capacitance at RF > 10 kΩ .............................................1 μF…10 μFOperating uncertainty.............................................................................................................. ± 10 %, at least ± 2 μFPassword ..................................................................................................................................... off / 0…999 (0, off)*Fault memory alarm relay ............................................................................................................................... on/(off)*

InterfaceInterface/protocol ..................................................................................................................................... RS-485 / BMSBaudrate .......................................................................................................................................................... 9.6 kbit/sCable length ................................................................................................................................................0…1200 mRecommended cable (shielded, shield connected to PE) .............................................................. min. J-Y(St)Y 2x0.6Terminating resistor.................................................................................. 120 Ω (0.25 W), internal, can be connectedDevice address, BMS bus ........................................................................................................................... 3…90 (3)*

Switching elementsSwitching elements ....................................................................................... 2 x 1 N/O contact, common terminal 11Operating principle ....................................................................... N/C operation or N/O operation (N/O operation)*Contact 11-14 .................................................................................................................................................... Alarm 1Contact 11-24 .................................................................................................................................................... Alarm 2Electrical endurance, number of cycles ............................................................................................................... 10 000Contact data acc. to IEC 60947-5-1Utilisation category .............................................................................................. AC-12, AC-14, DC-12, DC-12, DC-12Rated operational voltage.................................................................................... .......230 V, 230 V, 24 V, 110 V, 220 VRated operational current .............................................................. .................... ..................5 A, 2 A, 1 A , 0.2 A , 0.1 A

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Technical data

Minimum contact rating ............................................................................................................. 1 mA at AC/DC ≥ 10 V

Environment/EMCEMC ..........................................................................................................................................................IEC 61326-2-4Ambient temperatures:during operation ...................................................................................................................................... -40…+70 ºCduring transport ...................................................................................................................................... -40…+70 ºCduring storage.......................................................................................................................................... -40…+70 ºCClimatic class acc. to IEC 60721Stationary use (IEC 60721-3-3) ....................................................... 3K7 (except condensation and formation of ice)Transport (IEC 60721-3-2) ............................................................... 2K4 (except condensation and formation of ice)Long-term storage (IEC 60721-3-1) ................................................ 1K5 (except condensation and formation of ice)Classification of mechanical conditions acc. to IEC 60721Stationary use (IEC 60721-3-3) .............................................................................................................................. 3M4Transport (IEC 60721-3-2) ..................................................................................................................................... 2M2Long-term storage (IEC 60721-3-1) ...................................................................................................................... 1M3

ConnectionConnection type............................................................................................................... ...................... screw terminalsConnection properties:rigid / flexible / AWG ................................................................................ 0.2…4 / 0.2…2.5 mm2 / AWG 24…12Two conductors with the same cross section:flexible without ferrules .............................................................................................. 0.2…2.5 mm² / AWG 24…14rigid / flexible ............................................................................................ ........................ 0.2…1.5 / 0.2…1.5 mm2 Stripping length ...................................................................................................................... .............................. 8 mmTightening torque, terminal screws ............................................................................. ........................... 0.5…0.6 NmConnection type............................................................................................................................... push-wire terminalrigid ............................................................................................................................. 0.2…2.5 mm² (AWG 24…14)flexible without ferrules.............................................................................................. 0.2…2.5 mm² (AWG 24…14)flexible with ferrules ................................................................................................. 0.2…1.5 mm2 (AWG 24…16)Stripping length................................................................................................................................................... 10 mmOpening force........................................................................................................................................................... 50 NTest opening, diameter....................................................................................................................................... 2.1 mmConnection type............................................................................................................... terminals Up, AK1, GND, AK2Wiring of the terminals Up, AK1, GND, AK2: ....refer to technical data of AGH420, under the heading "Connection"

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Technical data

OtherOperating mode ............................................................................................................................continuous operationMounting...................................................................................................... cooling slots must be ventilated verticallyDegree of protection, built-in components (DIN EN 60529) ................................................................................. IP30Degree of protection, terminals (DIN EN 60529) ................................................................................................... IP20Enclosure material .................................................................................................................................... polycarbonateDIN rail mounting acc. to ................................................................................................................................. IEC 60715Screw fixing ......................................................................................................................... 2 x M4 with mounting clipWeight.................................................................................................................................................................≤ 150 g( )* = factory setting

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Technical data

6. 2 Technical data AGH420Insulation coordination acc. to IEC 60664-1/IEC 60664-3Rated insulation voltage ..................................................................................................................................... 1000 VRated impulse voltage ...............................................................................................................................................8 kVDegree of pollution .........................................................................................................................................................3Overvoltage category..................................................................................................................................................... IIIProtective separation (reinforced insulation) between................................... (L1/+, L2/-) - (AK1, GND, AK2, Up, E)Voltage test, routine test (IEC 61010-1) ................................................................................................................4.3 kV

IT system being monitoredNominal system voltage Un ............................................................................................................. AC/DC 0…1000 VTolerence of Un .........................................................................................................................................AC/DC +10 %Nominal system voltage Un (UL508) ................................................................................................. AC/DC 0…600 V

Measuring circuitMeasuring voltage Um ....................................................................................................................................... ± 45 VMeasuring current Im (at Rf = 0 Ω) ................................................................................................................ ≤ 400 μAInternal DC resistance Ri ...................................................................................................................................≥ 120 kΩImpedance Zi at 50 Hz ......................................................................................................................................≥ 120 kΩ

Environment/EMCEMC ..........................................................................................................................................................IEC 61326-2-4Ambient temperatures:during operation ...................................................................................................................................... -40…+70 ºCduring transport ...................................................................................................................................... -40…+70 ºCduring storage.......................................................................................................................................... -40…+70 ºCClassification of climatic conditions acc. to IEC 60721:Stationary use (IEC 60721-3-3) ........................................................3K7 (except condensation and formation of ice)Transport (IEC 60721-3-2) ................................................................2K4 (except condensation and formation of ice)Long-term storage (IEC 60721-3-1) .................................................1K5 (except condensation and formation of ice)Classification of mechanical conditions acc. to IEC 60721:Stationary use (IEC 60721-3-3) .............................................................................................................................. 3M4Transport (IEC 60721-3-2) ..................................................................................................................................... 2M2Long-term storage (IEC 60721-3-1) ...................................................................................................................... 1M3

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Technical data

ConnectionConnection type .................................................................................................................................... Screw terminalsConnection properties:rigid / flexible / conductor sizes AWG........................................................ 0.2…4 / 0.2…2.5 mm2 / AWG 24…12Two conductors with the same cross section:flexible without ferrules ..............................................................................................0.2…2.5 mm² / AWG 24…14rigid / flexible .................................................................................................................... 0.2…1.5 / 0.2…1.5 mm2 Stripping length .................................................................................................................................................... 8 mmTightening torque, terminal screws ........................................................................................................ 0.5…0.6 NmConnection type ............................................................................................................................... push-wire terminalrigid ............................................................................................................................. 0.2…2.5 mm² (AWG 24…14)flexible without ferrules.............................................................................................. 0.2…2.5 mm² (AWG 24…14)flexible with ferrules ................................................................................................. 0.2…1.5 mm2 (AWG 24…16)Stripping length ................................................................................................................................................... 10 mmOpening force........................................................................................................................................................... 50 NTest opening, diameter....................................................................................................................................... 2.1 mmConnection type ............................................................................................................... terminals Up, AK1, GND, AK2Single cables for terminals Up, AK1, GND, AK2:Cable lengths...................................................................................................................................................... ≤ 0.5 mConnection properties................................................................................................................................. ≥ 0.75 mm2

4-core cable for the terminals Up, AK1, GND, AK2:Cable lengths: ...................................................................................................................................................... ≤ 5 mConnection properties....................................................................................................................................... 2.5 mm2

OtherOperating mode ........................................................................................................................... Continuous operationMounting...................................................................................................... cooling slots must be ventilated verticallyDistance to adjacent devices, Un > 800 V .................................................................................................... ≥ 30 mmDegree of protection, built-in components (DIN EN 60529) ................................................................................. IP30Degree of protection, terminals (DIN EN 60529) ................................................................................................... IP20Enclosure material .................................................................................................................................... PolycarbonateDIN rail mounting acc. to ................................................................................................................................. IEC 60715Screw fixing ......................................................................................................................... 2 x M4 with mounting clipWeight.................................................................................................................................................................≤ 150 g

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Technical data

6. 3 Standards, approvals and certifications

6. 4 Ordering informationType Version Art.-No.isoEV425-D4-4 plus AGH420 push-wire terminal B 7103 6401isoEV425-D4-4 plus AGH420 screw terminal B 9103 6401

AccessoriesMounting clip for screw fixing (1 piece per device) B 9806 0008

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Technical data

6. 5 Error codesIf, contrary to expectations, a device error should occur, error codes will appear on the display. Some of these are described below:

Error code Meaning

E.01

PE connection errorAction:Check connection, eliminate error. The error code will be erased automatically once the error has been eliminated.

E.02

Connection error system,Connection error polarity on DC systems (error will only be output if Un ≥ 100 V)Connection error between isoEV425 and AGH420Action:Check connection, eliminate error. The error code will be erased automatically once the error has been eliminated.

E.07

Permissible system leakage capacitanceof 5 μF exceededAction:Device not suitable for the existing leakage capacitance: Uninstall device

E.xx

Device errorAction:If necessary, eliminate connection error, otherwise perform reset. Restore the device to the factory setting. The error code will be erased automatically once the error has been eliminated.If the error continues to exist, contact Bender-Service.

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INDEX
AActivate or deactivate the fault memory 32Activate or diactivate password 23Adaptation of the measuring pulse duration
9Adjustable parameters, list 25AL menu 30Alarm display when an insulation fault has

been detected 22Assign alarm categories to alarm relays K1/

K2 8, 34Automatic adaptation of the measuring

pulse duration 9

CCommissioning 16Connection monitoring 7

DDelay on release toff 9Deleting the fault alarms 18Description of function 5Device features 5

EEnter button 18Erase history memory 44Error codes 52

FFactory setting 9, 17Fault memory 10

GGetting to know the user interface 18

HHiS menu 43History memory 10How to use this manual 1

IINF menu 43Installation and connection 11Insulation fault in the DC system at L+ or L–

6

LLED Alarm 1 lights 18LED Alarm 2 lights 18

MMalfunction 8Manual, target group 1Menu

- AL (response values) 25- HiS (history memory) 27- InF (Softwaren version) 26

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INDEX

- out (fault memory, alarm relay) 25- Set (device control) 26- t (timing check) 26

Menu structure 24

NNavigation within the menu 24

OOperation and setting 17Ordering information 51out menu 32

PParameter query and setting, overview 23Password protection 9Pulse duration 9

QQuery and set response values 23, 30Querying measured values 19Querying the history memory 43Querying the insulation resistance 20Querying values 19

RReset button 18Reset button, external 9Response delay ton 8Response time 9Restore factory settings 42

SSafety instructions 3Selecting menus 28Self test, automatic 7Self test, manual 8Set BMS address 23, 34SEt menu 39Setting time delays 37Starting the menu mode 18Start-up delay t 8Switch the connection monitoring on or off

40

Tt menu 37Technical data 45Technical data AGH420 49Test button 18

UUnderstand display elements 19Undervoltage/overvoltage monitoring 7

WWiring diagram 14Work activities on electrical installations 3

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Bender GmbH & Co. KGLondorfer Str. 65 • 35305 Gruenberg • GermanyP.O. Box 1161 • 35301 Gruenberg • Germany

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

E-Mail: [email protected]: http://www.bender.de

http://www.bender-de.com

isometer® isoev425 with agh420 coupling device - bender · isometer® isoev425 with agh420...

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