HEIDENHAIN iTNC 530 HSCI - Sequence for finding serious electrical errors

February 2012 6 – 57
Flowchart
No
Inspect the motors and cables for
ground fault and 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 there is no potential at the primary
voltage connection and at the DC-link.
Exchange motor or cable.
Inspect the inverters for
ground fault and short circuit.
Ground fault or
short circuit found?
Exchange the inverter.
Inspect the inverter accessories
(e.g. braking resistors / braking modules)
for ground fault and short circuit.
Exchange accessory
components.