6 – 60 HEIDENHAIN Service Manual iTNC 530
6.3 Sequence for Finding Serious Electrical Errors
The most serious electrical error on a machine tool is a ground fault or short-circuit!
A ground fault or short circuit may be suspected in case of:
Blowing fuses (semiconductor fuses for the primary voltage supply in the electrical cabinet of
the machine tool or in a sub-distribution)
Error messages, such as Leakage current in UV 1xx or Overcurrent cutoff
Scorch marks and/or burnt smell
Destroyed units
Ground faults or short-circuits have to be elimiated before further investigation is possible.
For detailed descriptions on how to find ground faults /short circuits on HEIDENHAIN
drives, refer to the Service Manual ”Inverter Systems and Motors”.
To Next Page
Loading...
