delcon relay

7/29/2019 Delcon Relay

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Delcon Interace Relays


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Interace Relays

Delcon of Finland was founded in 1975 as a specialist manufacturer ofsolid state interface relays. Their relay design utilizes pulse transformertechnology which gives some unique advantages over traditional optocoupler based solid state relays and electro mechanical relays. Thishelps ensure a long lifetime and trouble free performance in harshindustrial applications where difficult loads, noise and interference cancause big problems. Delcon is market leader in Finland and Swedenwhere their relays are widely found in power plants and large factoriesworking in the wood, pulp and paper industry. Other significantcustomers include Alstom Grid who use Delcon relays extensively intheir HVDC power network control systems.

Problems with sigalig

Electrical disturbances can cause the LED indicator of optocoupler / electromechanical relays to glow when the relayis switched off and no input signal present. This makes itdifficult to quickly diagnose faults and rectify problems

SoltioThe Delcon LED is synchronized with the output so it isimpossible for it to glow without being on. The relays havegood hysteresis with clearly defined on / off points for reliableoperation in high noise environments.

Problems with iterferece

Power cables installed adjacent to signal cables, especiallyover long cable runs, create a capacitive effect that cancause opto coupler/electro mechanical relays to switch on orremain on ater the control signal switches o

Transients in the power supply causes damage to relay coils/opto coupler relays

Interference from frequency inverters can provide false on/offswitching

SoltioDelcon relays have built in capacitive suppression to allowsafe, reliable operation even with very long cable runs. An RCcircuit protects the relays from transients and high frequencyintererence.

CurrentmA

Voltage V

Switch on

Switch off

Delco

nrela

y

Optocoupl

errelay

Mech

anica

lrelay

I U

Interference

Suppression Hysteresis

Puls

transformer

Introduction

http://www.triumpower.com - [email protected] - Tel: 01 30 88 48 29 - Fax: 01 30 88 44 94


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Interace Relays

Amps.

Volts

0,1

1

10

225 275 325 375250 75 125 175

E-mech relay inductive loads, L/R 40 ms

Delcon relay inductive loads, L/R 50 ms

E-mech relay resistive loads, DC1

E-mech relay inductive loads, L/R 40 ms

Delcon relay inductive loads, L/R 50 ms

E-mech relay resistive loads, DC1

Problems with high dc voltage

Reduced switching capacity

Electromechanical relays are significantly derated at higherdc voltages

Usually require special version electromechanical relays thatare physically bigger and take up more space

SoltioDelcon dc output relay types CRA & CRA4 can switch up to300Vdc with no derating compared to electromechanical relayand in a smaller package. Example SLO24CRA4 switching 40mSinductive load at 3A / 110Vdc will give service life of 15 years ormore.

Problems with idctive loads

Contactors and solenoid valves are commonly usedthroughout industry, they are also problematic inductiveloads or electromechanical relays to handle

Contacts weld

Short lifetime

SoltioDelcon ac output relays are rated at 3A and can switch inductiveloads without any derating. Delcon dc output relays have noderating up to 24Vdc and thereafter still offer significantly lessderating compared to electromechanical relays.



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Interace Relays

Changing relays is a costly business

Choosing Delcon relays for your system will improve your longterm profitability. The cost of system downtime differs dependingon the type of industry but is usually very expensive. If weconsider only the cost of trouble shooting and replacing a faultyrelay or the irst time then the initial cost o choosing Delcon isalready exceeded.

Delcon is the default choice in many Scandinavian paper millswhich is a well known, tough industrial environment. Thesecustomers choose Delcon for reliable, safe operation and longterm cost savings through minimal maintenance and avoidingcostly downtime.

3 year

6 year

9 year

Costofsecond

replacement

Costoffirst

replacement

Costofthird

replacement

Lifetime

Cost

Cost of Delco

Cost of dowtime

Cost of E-Mech rela

Costprice

Delcon

Costprice

E-Mechrelay

Compared to the total system cost a relay is a relatively inexpensivecomponent. However, a relay that fails in a system runs the risk ofbecoming the most expensive component. Choosing a relay with ashorter life span than the entire system will probably result in costlyunwanted system downtime!

The life span of an industrial system is typically considered to be 15years.If your application has any of the following requirements then selectDelcon relays for a hassle free and safe operation that spans theentire system lie.

Frequent switching - relays operate at least once per minute Inductive loads fitting clamp diodes can help but increases

switch o time Inductive loads combined with high switching frequency High dc voltages



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Interace Relays

Quick guide

AC ipt relas

CR CRP

Standard 2 wire sensor version for leakage

current immunity up to 3.5mA

DC ipt relas

CR CRF

Standard High speed

AC otpt relas

TR TRA

Standard Motor control

DC otpt relas

CR CRA

Standard High voltage DC Inductive loads

AC/DC otptrelas

IRA

AC/DC High speed

Accessories Sockets 16 channel base PLC adapter Cables



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Interace Relays

Geeral descriptio

Galvanic isolation 4 kV, 8 mm creep distance Effective interference elimination Compatible with NPN/PNP logic LED indication

Input relays for AC

Orderig gide

Dimesios Coectios

AC ipt modle

Techical data(Values at +25 C)

The relays are used as an interface between AC sensors and controlsystems. The integrated interference protection provides reliableoperation even in very demanding electrical environments. Thanksto interference protection, signal cables can be run alongside powercables on, for example, cable racks for more than 1.5 km without

capacitive cross-talk affecting relays. The relays have no mechanicalparts, which provides very reliable application. The CRP models areespecially designed for connecting to 2-wire sensors that generateleakage current. The CRP relays are blind to leakage currents up to3.5 mA.

PRIMARy CIRCuIT SLI25CR SLI120CR SLI120CRP SLI230CR SLI230CRP SLI380CRS*

Ipt voltage om. 24 V AC 120 V AC 120 V AC 230 V AC 230 V AC 400 V AC

Ipt voltage max. 32 V AC 140 V AC 140 V AC 265 V AC 265 V AC 440 V AC

Power cosmptio max. 15 mA 7 mA 8 mA 6 mA 7.5 mA 5 mA

Ipt impedace tpical 2 k 20 k 17 k 45 k 35 k 80 k

Activatio voltage tpical 16 V AC 80 V AC 80 V AC 170 V AC 170 V AC 320 V AC

Drop-ot voltage tpical 14 V AC 60 V AC 60 V AC 110 V AC 140 V AC 220 V AC

Drop-ot crret tpical 3.5 mA 3.5 mA

SECOnDARy CIRCuIT

Load voltage max. 0-60 V DC 0-60 V DC 0-60 V DC 0-60 V DC 0-60 V DC 0-60 V DC

Voltage drop at max. load tpical 0.2 V DC 0.2 V DC 0.2 V DC 0.2 V DC 0.2 V DC 0.2 V DC

Load crret max. 50 mA 50 mA 50 mA 50 mA 50 mA 50 mA

Activatio time tpical 20 ms 50 ms 20 ms 50 ms 40 ms 50 ms

Drop-ot time tpical 60 ms 50 ms 40 ms 50 ms 40 ms 50 ms

Operatig temperatre See table below

*The socket is securely ftted to the relay.

12,8

38(74mmw

ithrelay)

80,6

13 14

MIS 1N

06339999

14(-)

)~/+(1A)+(31

A2(-/~)125 4

Field sideControl side

Part mber Descriptio Ipt Otpt Motig

SLI25CR Input relay 24 V AC 0-60 V DC/50 mA Plug-in



SLI120CRP Input relay 120 V AC 0-60 V DC/50 mA Plug-in

SLI230CRP Input relay 230 V AC 0-60 V DC/50 mA Plug-in

SLI380CRS Input relay 400 V AC 0-60 V DC/50 mA Plug-in

MIS1GN Socket for input relays. Standard DIN rail

JUMPER 16-13 Jumper bar for Delcons sockets, max. 16/bar.

Ambient temperature is dened as the temperature in direct proximityto the relays. The surface temperature of the relay (measured at the

middle of the relays top surface) must be kept under 70-75 C for along lifetime. Each 10 C increase halves the li fetime of the relay.

Ambiet temperatre Applies to Limitatios

-25 C to +40 C All input relays None

+40 C to +55 C 120 V AC and230 V AC relays

Only every other module should be constantly activated when the relays aremounted beside one another.

+55 C to +70 C Relays with voltages rom48-230 V AC

If the modules are in the activated state the majority of the time, the modules must be12.5 mm apart. On a mounting base, every other position must be empty.



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Interace Relays

Orderig gide

Dimesios Coectios

Geeral descriptio

Galvanic isolation 4 kV, 8 mm creep distance Effective interference elimination Compatible with NPN/PNP logic LED indication

Input relays for DC


The relays are used as an interface between DC sensors and controlsystems. The integrated interference protection provides reliableoperation even in very demanding electrical environments. Thanksto interference protection, signal cables can be run alongside powercables on, for example, cable racks for more than 1.5 km without

capacitive cross-talk affecting relays. The relays have no mechanicalparts, which provides very reliable application. If high frequenciesoccur from sensors for counting inputs, for example, we recommendSLI24CRF.

PRIMARy CIRCuIT SLI12CR SLI24CR SLI24CRF SLI48CR SLI125CR SLI250CR

Ipt voltage om. 12 V DC 24 V DC 24 V DC 48 V DC 125 V DC 250 V DC

Ipt voltage max. 18 V DC 32 V DC 32 V DC 70 V DC 140 V DC 265 V DC

Power cosmptio max. 7.5 mA 7 mA 8 mA 7 mA 4.2 mA 4 mA

Ipt impedace tpical 1.8 k 4 k 4 k 8 k 31 k 68 k

Activatio voltage tpical 7.5 V DC 16 V DC 16 V DC 36 V DC 80 V DC 170 V DC

Drop-ot voltage tpical 6 V DC 14 V DC 14 V DC 26 V DC 60 V DC 110 V DC

SECOnDARy CIRCuIT

Load voltage max. 0-60 V DC 0-60 V DC 0-60 V DC 0-60 V DC 0-60 V DC 0-60 V DC

Voltage drop at max. load tpical 0.2 V DC 0.2 V DC 0.2 V DC 0.2 V DC 0.2 V DC 0.2 V DC

Load crret max. 50 mA 50 mA 50 mA 50 mA 50 mA 50 mA

Activatio time tpical 0.3 ms 0.3 ms 5 s 0.3 ms 0.5 ms 0.5 ms

Drop-ot time tpical 0.3 ms 0.5 ms 20 s 0.5 ms 0.5 ms 0.5 ms

Operatig temperatre -25 C to +70 C

12,8

38(74mmw

ithrelay)

80,6

13 14

MIS 1N

06339999

14(-)

)~/+(1A)+(31

A2(-/~)125 4



SLI12CR Input relay 12 V DC 0-60 V DC/50 mA Plug-in


SLI24CRF Input relay, high frequency 10 kHz. 24 V DC 0-60 V DC/50 mA Plug-in

SLI48CR Input relay 48 V DC 0-60 V DC/50 mA Plug-inSLI125CR Input relay 125 V DC 0-60 V DC/50 mA Plug-in


MIS1GN Socket for input relays. Standard DIN rail


N/C relays also available upon request.



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Interace Relays

Dimesios Coectios

Geeral descriptio

Galvanic isolation 4 kV, 8 mm creep distance 3 A inductive or resistive load

Effective interference elimination

LED indication

Output relays for AC

Orderig gide

The relays are used as an interface between control systems andAC loads. The relays can handle inductive loads without loadcurrent reduction, which makes them very suitable for connectionto, for example, solenoid valves and contactors. The relays haveno mechanical parts, which means very reliable application. Theintegrated interference protection provides reliable operation evenin very demanding electrical environments. Thanks to intererence

protection, signal cables can be run alongside power cables on,for example, cable racks for more than 1.5 km without capacitivecross-talk affecting relays. The SLOP models are especially designedfor connection to 2-wire sensors that produce leakage current. Therelays are blind to leakage currents up to 3.0 mA. For forward/reversecontrol of AC motors, the SLO24TRA is used. The relay has a higheroperating voltage and withstands regenerated voltages from motors.


PRIMARy CIRCuIT SLO5TR SLO24TR SLO24IRA SLOP120TR SLOP230TR SLO24TRA

Ipt voltage om. 5 V DC 24 V DC 24 V DC 120 V AC 230 V AC 24 V DC

Ipt voltage max. 7 V DC 32 V DC 32 V DC 140 V AC 265 V AC 32 V DC

Power cosmptio max. 17 mA 17 mA 15 mA 6 mA 6 mA 17 mA

Ipt impedace tpical 0.3 k 1.6 k 2 k 24 k 46 k 1.4 k

Activatio voltage tpical 2.7 V DC 16 V DC 16 V DC 80 V AC 170 V AC 16 V DC

Drop-ot voltage tpical 2.5 V DC 14 V DC 14 V DC 65 V AC 110 V AC 14 V DC

Drop-ot crret 3 mA 3 mA

SECOnDARy CIRCuIT

Load voltage max. 0-265 V AC 0-265 V AC 0-265 V AC0-300 V DC

0-265 V AC 0-265 V AC 0-265 V ACmotor loads0-460 V ACstatic loads

Voltage drop at max. load tpical 1 V 1 V 1.5 V 1 V 1 V 1 V Load crret max. 3 A 3 A 1.2 A 3 A 1.5 A 2.5 A

Peak crret, max. 20 ms 90 A 90 A 8 A 90 A 90 A 65 A

Leakage crret tpical 2 mA 50 A 50 A 2 mA 2 mA 50 A

Activatio time tpical 0.5 ms 0.5 ms 0.3 ms 10 ms 10 ms 0.5 ms

Drop-ot time tpical 11 ms 11 ms 0.3 ms 20 ms 20 ms 11 ms

Operatig temperatre See the technical information.

12,8

38(74mmw

ithrelay)

80,6

13 14

MOS 1N

06339999Field sideControl side

A2(-)

)~/+(31)+(1A

14(-/~)1234


SLO5TR Output relay 5 V DC 0-265 V AC/3 A Plug-in

SLO24TR Output relay 24 V DC 0-265 V AC/3 A Plug-in

SLO24IRA Output relay 24 V DC 0-300 DC or 0-265 VAC/1.2 A

Plug-in

SLOP120TR Output relay 120 V AC 0-265 V AC/3 A Plug-inSLOP230TR Output relay 230 V AC 0-265 V AC/1.5 A Plug-in

SLO24TRA Output relay 24 V DC 0-265 V AC Motor load0-460 V AC Static load

Plug-in

MOS1GN Socket for output relays. Standard Din rail

JUMPER 16-13 Jumper bar for Delcons sockets, 16 way strip.



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Interace Relays

Dimesios Coectios

Galvanic isolation 4 kV, 8 mm creep distance Voltages up to 300 V DC

Up to 10 A load current

LED indication

Output relays for DC

Geeral descriptio

Orderig gide

The relays are used as interfaces between control systems and DCloads. The relays handle inductive loads and high DC voltages withlow load reduction compared to mechanical relays, which provide along lifetime. If a diode is mounted across a load, such as 1N4007,the nominal current applies, even with high inductive loads. (Keepin mind that the drop-out time increases when mounting a diode.)

The relays have no mechanical parts, which means very reliableapplication. The integrated interference protection provides reliableoperation even in very demanding electrical environments. Thanksto interference protection, signal cables can be run alongside powercables on, for example, cable racks for more than 1.5 km withoutcapacitive cross-talk affecting relays.


PRIMARy CIRCuIT SLO5CR SLO24CR SLO24CRA SLO24CRA4 SLO24CRX SLO120CRA SLO120CRA4 SLO220CRA SLO220CRA4

Ipt voltage om. 5 V DC 24 V DC 24 V DC 24 V DC 24 V DC 120 V DC 120 V DC 220 V DC 220 V DCIpt voltage max. 15 V DC 32 V DC 32 V DC 32 V DC 32 V DC 140 V DC 140 V DC 250 V DC 250 V DCPower cosmptio max. 15 mA 15 mA 15 mA 15 mA 15 mA 4 mA 4 mA 4 mA 4 mA Ipt impedace tpical 420 k 2 k 2 k 2 k 2 k 34 k 34 k 63 k 63 k

Activatio voltage tpical 2.7 V DC 16 V DC 16 V DC 16 V DC 16 V DC 80 V DC 80 V DC 170 V DC 170 V DCDrop-ot voltage tpical 2.5 V DC 14 V DC 14 V DC 14 V DC 14 V DC 60 V DC 60 V DC 120 V DC 120 V DCSECOnDARy CIRCuIT

Load voltage max. 0-60 V DC 0-60 V DC 0-300 V DC 0-300 V DC 0-32 V DC 0-300 V DC 0-300 V DC 0-300 V DC 0-300 V DC

Voltage drop atmax. load

tpical 0.5 V DC 0.5 V DC 1.5 V DC 0.8 V DC

0.4 V DC 1.5 V DC 0.8 V DC 1.5 V DC 0.8 V DC

Load crret max. 3 A 3 A 1.8 A 4 A 10 A 1.8 A 4 A 1.8 A 4 A

Peak crretmax. 10 ms 15 A 15 A 12 A 20 A 80 A 12 A 20 A 12 A 20 A

Activatio time tpical 0.3 ms 0.3 ms 0.3 ms 0.3 ms 0.3 ms 0.5 ms 0.5 ms 0.5 ms 0.5 ms

Drop-ot time tpical 0.3 ms 0.3 ms 0.3 ms 0.3 ms 0.3 ms 0.5 ms 0.5 ms 0.5 ms 0.5 ms

Operatig temperatre See the general technical information.

12,8

38(74mmw

ithrelay)

80,6

13 14

MOS 1N

06339999


A2(-)

)~/+(31)+(1A

14(-/~)1234

Order mber Descriptio Ipt Otpt Motig

SLO5CR Output relay 5 V DC 0-60 V DC/3 A Plug-in

SLO24CR Output relay 24 V DC 0-60 V DC/3 A Plug-in

SLO24CRA4 Output relay 24 V DC 0-300 V DC/4 A Plug-in

SLO24CRA Output relay 24 V DC 0-300 V DC/1.8 A Plug-in

SLO24CRX* Output relay 24 V DC 0-32 V DC/10 A Plug-in

SLO120CRA Output relay 120 V DC 0-300 V DC/1.8 A Plug-in

SLO120CRA4 Output relay 120 V DC 0-300 V DC/4 A Plug-inSLO220CRA Output relay 120 V DC 0-300 V DC/1.8 A Plug-in

SLO220CRA4 Output relay 220 V DC 0-300 V DC/4 A Plug-in

MOS1GN Socket for output relays. Standard


* For mounting in socket MOS1GN or MBS16, 6.3 A applies. For solder connection in socket 10A order no. SLO24CRXS.



10/1110

Interace Relays

Trasiet & High Freqec SppressioThe relays have integrated protection against transients andEMI that can occur on the primary side.

Switchig Poits & HsteresisThe relays have defined activation and drop-out points.Activation occurs at 2/3 of the nominal voltage and dropout occurs at 1/2 of the nominal voltage. Current hysteresisentails that the relays impedance is changed at the activationpoint; less current is required to hold the relay in the activatedposition. The two functions above ensure a hysteresis betweenthe activation and drop-out point. Activation and drop out are

always reliably conducted, even in environments with high interference.

I U

Interference

Suppression HysteresisPuls

transformerOutput

circuit Protection

The diagram shows the change-over levels/hysteresis for Delconsinterface relays compared with mechanical relays and optocouplers.

Plse trasformerDelcon uses a pulse transformer for transmissionof the signal from the primary to secondary side,resulting in high energy transfer. This permits the

use of heavy duty output components of high quality.In comparison with an optocoupler, which utilises the load side forsupply to the internal electronics, the pulse transformer and Delconscircuit solution offer many benefits: Creep distance of 8 mm 4 kV isolation Very low leakage current No demand for min. load High immunity to load transients High load currents High dV/dt values

Solid State Switch & Protectio CompoetsAC otptTRIAC output semi-conductor. Thanks to thepulse transformers strong signal transmission,

TRIACs can be used that are less sensitive torapid load voltage (dV/dt) rise/fall times. Sensitive TRIACs can beactivated by rapid voltage changes. This problem is eliminated withDelcons interface relays. The SLO24TR standard relay has very lowleakage current (0.05 mA) and has varistor protection against loadtransients. Other AC relays have varistors and RC protection on thesecondary side. No minimum load is required and all modules have awide voltage range. The relays can handle resistive and inductive loadswithout load currents needing to be reduced.

DC otpt

Power MOSFET output semi-conductor. Available

for load currents up to 10A in same compact

casing. Transient protection is provided by a zener diode or varistor,

which entails that there is no leakage current. Low reduction of load

current for inductive loads compared with mechanical relays.

U

I

I

Delcons unique interface relays

Field of applicatio

Delcons interface relays are designed to withstand toughindustrial environments. Reliable activation and drop out, very highinterference immunity, 4 kV isolation and high load currents providea maintenance-free process with low service costs and reliableoperation. Lifetime is estimated at up to 20 years, depending on thetype.

Iterferece protectioDelcons interface relays have interference protection in several layersthat effectively prevent false signals from affecting the relays. Onlyactual control signals pass through the filter.

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Capacitive SppressioWhen power cables with AC voltage are installed alongside asignal cable, a capacitance occurs between the cables. Thiscapacitance creates an undesired current in the signal

cable that can affect optocouplers/mechanical relays so that theyare activated or do not disconnect when the control signal ceases.Delcons relays have integrated protection that prevents capacitivecross-talk from incorrectly activating relays. Installation of powercables beside unshielded signal cables for long distances (>1.5 km) istherefore feasible.

I



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Interace Relays

Operatig temperatre otpt modles

The permitted load is linearly reduced to 1/3 from +30 C to +70 Cambient temperature (the ambient temperature must be measuredimmediately adjoining the relays). When the output modules aremounted close together, the maximum load should not be morethan 50 percent for an extended period. In other words, all modulesconstant to and including 50 % load,or half of the modules with 100

% load or all with 100 % load half the time. This provides maximumlifetime. If there is a 12.5 mm gap between the modules, theserestrictions do not apply. AC output relays with AC control circuits(SLOA120TR, SLOP120TR, SLOA230TR, SLOP230TR) are to beinstalled with the same method as for the AC input relays, in additionto what is described above. This is done to achieve optimal heatdissipation. Also note the reduction diagram below.

ApprovalCE, cULus listed (file no.: E162 828)

Applicatio tips nPn/PnPAll input relays can be connected both for NPN and PNP logic.

Ipt relas coected with log screeed sigal cablesWhen power cables are installed beside signal cables for longdistances, the CR type must be used.

Coectio of 2-wire sesors with leakage crretIf 2-wire sensors or other equipment that generates leakage currentis to be connected to the interface relays, we recommend use of the

following relays:

Ipt relaSLI120CRP or SLI230CRP.

Otpt relaSLOP120TR or SLOP230TR.

Forward/reverse operatio with motorsDelcons standard relays (e.g., SLO24TR) should not be used forforward/reverse operation of single-phase or three-phase motors.Doing so entails risk or the returned voltage damaging the relays.For forward/reverse or static control of AC motors, SLO24TRA isto be used. This relay is especially designed for controlling motoroperation and has a higher maximum voltage compared to thestandard relays. For forward/reverse control of DC motors, werecommend LPS24.

24 V DC applicatios with high idctive loadsIf the load is strongly inductive, we recommend the use of transientprotection along with SLO24CR.If transient protection cannot be fitted, we recommend SLO24CRA/SLO24CRA4, which have an operating voltage of up to 300 V DC.

The relay has higher immunity to high-energy load transients. For

inductive DC loads, the maximum nominal current is reduced.

Color codigIpt

l Input relays for AC voltage

Input relays for DC voltage

l Input relays for AC voltage, 2-wire sensors (leakage currents)Otpt

l Output relays for AC voltage

l Output relays for DC voltage

Markig of Delco iterface modlesThere are two types of relay markings. Alt. 1. The marking holder is

mounted on the relays clip bracket. Up to four marking digits can beapplied to the holder. Alt. 2. Label for mounting on the marking holderor directly on the relays clip bracket. The label can be printed ormarked with, for example, DYMO embossing tape.

Part mber Descriptio

04.242.2853.0 Marking holder

23526013 Digit 0

23526100 Digit 1

23526201 Digit 2

23526302 Digit 3

23526403 Digit 4

23526504 Digit 5

23526605 Digit 6

23526706 Digit 7

23526817 Digit 8

23526910 Digit 9Each set includes 10 digits on a single strip. 23526201, for example, includes 10 twos.

Order mber Descriptio

04.242.2853.0 Marking holder

KPX20X8 RELECO Label, 20x8 mm

Orderig gide

Alt. 1

Alt. 2


delcon relay

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