A-3
OP27,
OP37 Equipment Manual
Release 05/99
Contact assembly for temperature
monitoring
OP27 OP37
Switching power – 24 V DC, 0.3 A
(no inductive load)
Direct key module (DKM) OP27 OP37
Voltage supply for outputs, load voltage supply and internal logic circuitry
Voltage supply
rated value
permissible range
value at t < 0.5 sec
+ 24 V DC
+18.0 to +30.0 V
35 V
Power consumption of logic circuitry 50 mA
Short-circuit protection upon polarity rever-
sal of load voltage
4
Outputs
1)
No. of outputs 8 per module
Output voltage
with signal “0”
with signal “1”
Max. 2 V (idling)
Min. (voltage supply –3 V)
Output current
with signal “0”
with signal “1”
Max. 1 mA
Max. 300 mA per output
Switch rate at
resistive load
inductive load
lamp load
Max. 100 Hz
Max. 0.5 Hz
Max. 8 Hz
Short-circuit current Max. 500 mA per output
Note:
With inductive loads, an external free-wheeling diode must be used directly on the load.
1)
Outputs are isolated by means of optocouplers.
Technical
Data
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