Cycle monitoring relay w/watchdog function - …

1 6 Measuring & monitoring relaysCM RangeCycle monitoring relaywith watchdog functionCycle monitoring relayw/ watchdog functionPhone: - Fax: - Web: - Email: & monitoring relaysCM RangeThe Cycle monitoring relay CM-WDS ( watchdog ) observes if a regularly intermittent pulse is ap-plied to its pulse input I . It is, for example, possible to connect the output of a programmable logic controller (plc), which is set and reset regularly (e. g. once each Cycle ). The connected Cycle pulse must be generated by suitable programming of the plc/ipc. Now, the CM-WDS monitors if the Cycle time of the plc/ipc program is smaller than the Cycle monitoring time set-ted by means of the front-face selector switch time value (ms).

2 The output relay 11-12/14 of the CM-WDS energizes and the red LED is switched off, if there are minimum 8 successive regular pulses on input I . When the pulse signal stays out or is not regular, the output relay de-energizes and the red LED is case the monitoring time is too short or too long, this can be adjusted by a modified pro-gramming of the plc/ips or by modified setting of the monitoring time time value (ms) . A fault recognized and stored with the CM-WDS can be reset by an H-impulse (0-1-transition) on the reset input R(9) , so that the Cycle monitoring is again released. The reset impulse can be generated by means of a reset button or by suitable programming of the controller (plc/ipc).

3 Ordering detailsRated control supply voltageReferencecodeCatalognumberWeight( 1 pce) kg (lb)24 V ( )CM-WDSA1(+)IR12(2) (0) A2(0)R(9) I(8)D(3)11(4) 14(1)A1A21112 14DA1(+)IR12(2)(0)A2(0)R(9)I(8)D(3)11(4) 14(1)A1A21112 14 DSPS / IPCR esetL+L-H1H2O windowI Rred LED 11/1411/12 A = Cycle monitorB = Cycle is correct, no Cycle errorC = Cycle failure 1: pulse > monitoring window Cycle failure 2: pulse stays outt1 = 300 mst2 = 260 msA1/A2 Rated control sup-ply voltageI Cycle pulse inputR Reset input11-12/14 Output relayD Protected output (freewheeling diode)ApplicationThe CM-WDS is designed for the external monitoring of the correct function of programmable logic controllers (plc) and industrial pcs (ipc).

4 function diagram CM-WDSE xample of application - circuit diagramCharacteristicsConnection diagram CM-WDSD escription Cycle monitor for monitoring the function of programmable logic controllers or industrial pcs 4 selectable Cycle monitoring time ranges from to 1000 ms 24 V DC supply 1 c/o contact 2 LEDs for status indicationCycle monitoring relay with watchdog functionOrdering detailsPhone: - Fax: - Web: - Email: & monitoring relaysCM RangeTypeCM-WDSI nput circuitA1-A2 Rated control supply voltage US - power consumption A1-A224 V DC - approx. 1 WTolerance of the rated control supply voltage US-30 % - +30 %Duty time100 %Measuring circuitIMonitoring functioncycle monitoringMeasuring voltage24 V DCCurrent consumption at the measuring inputapprox.

5 5 mASetting range of Cycle monitoring timeselectable: ms, ms, ms, msResponse timeapprox. msAccuracy within the supply voltage tolerance U m %Accuracy within the temperature range U m % / CTiming circuitON-delayapprox. sIndication of operational statesControl supply voltageU: green LEDO utput relay de-energized / Cycle errorF: red LEDO utput circuit11-12/14 Kind of output1 c/oOperating principle 1)Closed-circuit principle Contact materialAgCdoRated operational voltage Ue IEC/EN 60947-1250 VMinimum switching voltage / Minimum switching currentMaximum switching voltage250 V AC, 250 V DCRated operational current Ie (IEC/EN 60947-5-1)AC12 (resistive) 230 V4 AAC15 (inductive) 230 V3 ADC12 (resistive) 24 V4 ADC13 (inductive) 24 V2 AAC rating (UL 508)Utilization category (Control Circuit Rating Code)B 300max.

6 Rated operational voltage300 V ACmax. continuous thermal current at B 3005 Amax. making/breaking apparent power at B 3003600/360 VAMechanical lifetime10 x 106 switching cyclesElectrical lifeteime (AC12, 230 V, 4 A) x 106 switching cyclesMax. fuse rating to achieve short-circuit protectionn/c / n/o contacts10 A fast-acting / 10 A fast-actingGeneral dataDimensions (W x H x D) x 78 x 100 mm ( x x in)Mounting positionanyDegree of protection enclosure / terminalsIP50 / IP20 Ambient temperature rangeoperation / +60 C / +85 CMountingDIN rail (IEC/EN 60715)Electrical connectionWire sizefine-strand with wire end ferrule2 x mm2 (2 x 14 AWG)StandardsProduct standardIEC 255-6, EN 60255-6 Low Voltage Directive2006/95/ECEMC Directive2004/108/ECOperational reliability (IEC 68-2-6)4 gMechanical shock resistance (IEC 68-2-6)

7 6 gElectromagnetic compatibilityInterference immunity toEN 61000-6-2electrostatic dischargeIEC/EN 61000-4-2 Level 3 (6 kV / 8 kV)radiated, radio-frequency, electromagnetic fieldIEC/EN 61000-4-3 Level 3 (10 V/m)electrical fast transient / burstIEC/EN 61000-4-4 Level 3 (2 kV / 5 kHz)surgeIEC/EN 61000-4-5 Level 3 (2 kV L-L)conducted disturbances, induced by radio-frequency fieldsIEC/EN 61000-4-6 Level 3 (10 V)Interference emissionEN 61000-6-4 Isolation dataRated insulation voltage between supply-, control- and output circuit (VDE 0110, IEC 60947-1)250 VRated impulse withstand between all isolated circuits (VDE 0110, IEC 664)4 kV / sTest voltage between all isolated kV, 50 Hz, 1 minPollution degree (VDE 0110, IEC 664, IEC 255-5)3/COvervoltage category (VDE 0110, IEC 664, IEC 255-5)IIIE nvironmental tests (IEC 68-2-30)24 h Cycle , 55 C, 93 % rel.

8 96 h1)Closed-circuit principle: Output relay de-energizes if a Cycle error occursCycle monitoring relay with watchdog functionTechnical dataPhone: - Fax: - Web: - Email.