FAULT
Message
F37: AC Curr
Over Rating
F42: CT Current
Sensor Fail
F50:Zero Cross
Circuit Fail
Detection circuit malfunction
1.Inverter choke Fail
2.Output Filter Fail
3. Detection circuit malfunction
The detection circuit for
synchronous signal malfunction
Check the detect circuit inside the
inverter
1.
Check Inverter choke inductance.
2. Check output filter capacitance.
3.
Check the detection circuit inside
the inverter
Check the detection circuit for
synchronous signal inside the
inverter
F56:Hardware
Incompatibility
HW power rating incorrect
Check comm. HW power rating info.
F60: DC1 Curr
Over Rating
1. Switching device in boost is
defective
2. Driver for boost is defective
3. Input current detection circuit
malfunction
1. Check all switching device in
boost
2. Check the driver circuit for boost
inside the inverter
3. Check input current detection
circuit
F61: DC2 Curr
Over Rating
1. Switching device in boost is
defective
2. Driver for boost is defective
3. Input current detection circuit
malfunction
1. Check all switching device in
boost
2. Check the driver circuit for boost
inside the inverter
3. Check input current detection
circuit
F70: DC1 Curr
Transient Over
1. Switching device in boost is
defective
2. Driver for boost is defective
3. Input current detection circuit
malfunction
1. Check all switching device in
boost
2. Check the driver circuit for boost
inside the inverter
3. Check input current detection
circuit
F71: DC2 Curr
Transient Over
1. Switching device in boost is
defective
2. Driver for boost is defective
3. Input current detection circuit
malfunction
1. Check all switching device in
boost
2. Check the driver circuit for boost
inside the inverter
3. Check input current detection
circuit
Possible cause Action
F36:Output Curr
Transient Over
1. Surge occurs during operation
2.
Driver for inverter stage is defective
3. Switching device is defective
4. Detection circuit malfunction
1. N/A
2.
Check the driver circuit in inverter
stage
3. Check all switching devices in
inverter stage
4. Check the detect circuit inside
the inverter
Table 9-2: Error message
47
Measurement, Error Message and Trouble Shooting