HEIDENHAIN iTNC 530 Service Manual page 339

Flowchart
for two
1-axis modules
May 2006
Interchanging power modules of the same type
Switch off the main switch of the machine tool.
Unscrew the cover plate from the inverter system.
Interchange the PWM ribbon cables of the axes
concerned at the power modules or output
stages (in the example: connectors X111).
CAUTION: Handle the ribbon cable connectors
with care! Do not bend the pins!
Screw the cover plate to the inverter system.
CAUTION: Do not damage the ribbon cable!
Connect the motor connectors to the
power module or to the compact inverter
in accordance with the PWM inputs
(in the example: connectors X81).
CAUTION: If motor brakes are to be controlled
by the power module, their connections has
to be altered as well!
Switch the main switch of the machine on.
Confirm the Power interrupted message and
switch the control voltage on.
Traverse the axes.
Does the error pattern
move to the other axis
(in the example from
X to Y)?
The defect is probably located
in the power module / output stage.
No
Yes
The defect is probably due to the
motor, the motor cable, the PWM
ribbon cable or the mechanics.
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