Cause: Voltage and current signal missing
Measure during initial startup
Fault area 2:
Explanation: Secondary circuit interrupted before UR pickup point.
Possible cause:
- Wire break
- Secondary winding of pulse transformer interrupted
Measure during operation, HB not changed
Fault area 2
Explanation: Secondary circuit interrupted before UR pickup point.
Possible cause:
- Wire break
- Secondary winding of pulse transformer interrupted
Fault area 9:
Explanation: Internal device fault / no line voltage
Possible cause:
- Hardware fault: Replace temperature controller
- Jumper for alarm relay defective or not in correct position
- No line voltage
Fault Areas:
