IFM Electronic G1502S - 8�4�3 Fault Diagnosis

39
UK
8.4.3 Fault diagnosis
In case of a fault switch the safety relay off and on again!
LED display Cause of the fault Troubleshooting
K1 E1 T1 POWER
K2 E2
Fault T
Fault
• No voltage supply
• Overvoltage
• Connection A1/A3 or A1/A2
reversed
► Check wiring
► Check power supply
K1 E1 T1 POWER
K2 E2
Fault T
Fault
• Wire break
• Feedback contacts open
• Time-dependent contacts
► Check wiring
► Switch the safety relay off
and on again
K1 E1 T1 POWER
K2 E2
Fault T
Fault
• When voltage is applied:
Feedback contacts open
► Check output circuit
► Check feedback contacts
► Exchange external contactor
K1 E1 T1 POWER
K2 E2
Fault T
Fault
• Wiring fault
• Missing link Y4/Y5
• Short circuit
• Contacts closed when voltage
is applied
► Check wiring
► Open contacts and RESET
or voltage failure
K1 E1 T1 POWER
K2 E2
Fault T
Fault
• Connection A2/A3 reversed ► Check wiring
K1 E1 T1 POWER
K2 E2
Fault T
Fault
• Overvoltage
• Undervoltage
► Check wiring
► Check power supply
K1 E1 T1 POWER
K2 E2
Fault T
Fault
• Overvoltage
• Undervoltage
► Check wiring
► Check power supply