•
a sudden heavy load increase
•
a short circuit in the motor cables
•
the motor is not the correct type
Troubleshooting
•
Check the load.
•
Check the motor.
•
Check the cables and connections.
•
Make an identification run.
12.10.2 Fault 1 - Overcurrent, Subcode S3 - Current limit controller supervision
Cause
There is too high a current in the motor cable. Its cause can be 1 of the following:
•
a sudden heavy load increase
•
a short circuit in the motor cables
•
the motor is not the correct type
Troubleshooting
•
Check the load.
•
Check the motor.
•
Check the cables and connections.
•
Make an identification run.
12.10.3 Fault 1 - Overcurrent, Subcode S4 - Software-based overcurrent fault
Cause
There is too high a current in the motor cable. Its cause can be 1 of the following:
•
a sudden heavy load increase
•
a short circuit in the motor cables
•
the motor is not the correct type
Troubleshooting
•
Check the load.
•
Check the motor.
•
Check the cables and connections.
•
Make an identification run.
12.10.4 Fault 2 - Overvoltage, Subcode S1 - Hardware trip
Cause
The DC-link voltage is higher than the limits.
Specifications
Operating Guide | VACON® NXI Inverters FI9-FI14
AQ304441431479en-000101 / DPD00909| 133
Danfoss A/S © 2019.11
Summary of Contents for VACON NXP FI10
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