JSR1T Expansion Relay
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Technical Data
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Manufacturer.................................. JOKAB SAFETY
Ordering Data.......................... JSR1T + delay time
Color................................................. black and beige
Weight................................................................ 280 g
Power Supply................................... 24 VDC+/-15%
Power Consumption......................................... <2W
Relay Outputs...................................... 4 NO + 1 NC
Maximum switching
capacity res. load AC............. 6A/250 VAC/1500 VA
Maximum switching
capacity res. load DC................. 6A/24 VDC/150 W
Minimum load.......................................... 10mA/10 V
(if load on contact has not exceeded 100 mA)
Maximum input wire
res. at nom. voltage............... 150 Ohm (S13-S14)
Response Time
At deactivation (input - output)...... <0.015 s, 0.5 s,
1 s, 1.5 s, 2 s, 3 s, 5 s, 8 s, 10 s +/-20%
Mounting.......................................... 35 mm DIN rail
Terminals
Maximum screw torque................................... 1 Nm
Single strand......................... 1x4mm2/2x1.5mm2
Conductor
with socket contact............... 1x2.5mm2/2x1mm2
Air and creep distance............. 4kV/2 IEC 60664-1
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Operating Temperature
Range ............................................. -10ºC to +55ºC
Function Indication............................ Output status
Protection Class
Enclosure....................................... IP 40 IEC 60529
Connection blocks........................ IP 20 IEC 60529
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Technical Description
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The JSR1T has to be connected to a safety relay in order to fulfill the necessary safety requirements (see connection examples below). The safety relay controls and monitors the JSR1T. (The JSR1T can be connected for single or dual channel operation - see below.) When the inputs S14 and S24 close, relays K1 and K2 are activated. A stop signal is given, K1 and K2 drop, if the inputs are opened or during power failure. K1 and K2 drop either directly or after a delay* (if incorporated). Delay time of module is fixed and shown on front panel of device. The delay circuit is so arranged that the design time cannot be exceeded.
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To check that both the relays K1 and K2 drop during a stop signal they must be monitored.
This is achieved by connecting X1 and X2 to the test or reset input on the safety relay which is expanded (see below). K1 and K2 are mechanically operated relays, therefore, if one of the output contacts should stick closed then the relays contact in X1-X2 cannot be closed thus preventing a new ready signal being given to the safety relay.
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Electrical Connections
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Expansion of outputs for safety relay connected to emergency stop with automatic reset.
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Dual channel expansion with delayed safety outputs for a safety relay monitoring a gate.
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