HEIDENHAIN iTNC 530 Service Manual page 341

Flowchart
for two
1-axis modules
July 2010
Interchanging power modules of the same type
Shut down the control and switch off the main
switch of the machine. Take precautions
against restart and ensure that the equipment
is free of potential.
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 have to
be altered as well!
Switch on the machine.
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
interface of the control.
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