18
8.1.3 Fault diagnosis
In case of a fault switch the safety relay off and on again!
LED display
Cause of the fault
Troubleshooting
•
No voltage supply
•
Overvoltage
•
Connection A1/A3 or A1/A2
reversed
►
Check wiring
►
Check power supply
•
Wire break
•
Feedback contacts open
►
Check wiring
►
Switch the safety relay off
and on again
•
When voltage is applied:
Feedback contacts open
►
Check output circuit
►
Check feedback contacts
►
Exchange external
contactor
•
Wiring fault
•
Short circuit
•
Inputs S34 and S43 “1” when
voltage is applied
►
Check wiring
►
Switch the fail-safe sensor/
switch off and on again
•
Short circuit S33/S43
►
Check wiring
•
Short circuit S33/S43
►
Check wiring
Summary of Contents for G1501S
Page 1: ...706199 00 04 2012 Original operating instructions Safety relay with relay outputs G1501S UK ...
Page 16: ...16 Input circuit Output status LED display ...
Page 17: ...17 UK Input circuit Output status LED display ...
Page 26: ...26 LED display Cause of the fault Troubleshooting Short circuits Check wiring ...
Page 34: ...34 8 4 2 Function Input circuit Output status LED display N O contact activated ...
Page 44: ...44 LED display Cause of the fault Troubleshooting Short circuits Check wiring ...
Page 49: ...49 UK ...