Sequence For Finding Serious Electrical Errors - HEIDENHAIN iTNC 530 Service Manual

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:
6 – 60
DANGER
Ground faults or short-circuits have to be elimiated before further investigation is possible.
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
Note
For detailed descriptions on how to find ground faults /short circuits on HEIDENHAIN
drives, refer to the Service Manual "Inverter Systems and Motors".
HEIDENHAIN Service Manual iTNC 530