HEIDENHAIN ITNC 530 - Page 61

July 2010 6 – 61
Flowchart
No
Check the motors and the cables for
ground fault or short circuit
Sequence for finding
serious electrical errors
Ground fault
or short circuit
found?
Ground fault
or short circuit
found?
Functional test of the drive components
Yes
Yes
Yes
No
No
Switch off the main switch of the machine
and take precautions against resetting
Ensure that the primary voltage connector
and the dc-link are free of potential
Replace motor or cable
Check inverter for
ground fault or short circuit
Ground fault
or short circuit
found?
Replace inverter
Check inverter accessories
(e.g. braking resistors / braking modules)
for ground fault or short circuit
Replace accessories