Siemens G120P Technical Manual page 92

Service, maintenance and fault rectification
8
Fault rectification
92 | 98
Siemens
Building Technologies
IOP simulation
Perform the following checks to test the inputs of the drive. These tests can detect
wiring errors and any potential errors in the variable speed drive settings.
Check/Test Description
1. Select the "Diagnostics / I/O simulation" menu.
IOP I/O simulation
2. If the drive output responds to the simulation steps performed, this
indicates that the drive is probably working properly but that the
wiring is incorrect.
How to proceed if a fault is discovered
NOTICE
Risk of data loss!
When you reset parameters to the factory settings, all stored parameters and data
will be lost. Once the device has been reset to its factory settings, it must be
commissioned again.
● Make a copy of the working settings before you reset the variable speed drive
to its factory settings.
 All tests indicate that the variable speed drive and the wiring are okay:
Reset the drive to the factory settings. This will allow you to tell whether the

drive has been incorrectly configured. For instructions on how to reset the
variable speed drive to the factory settings, refer to Chapter Restoring
parameters to factory settings [➙ 60].
 If, having conducted all the measures, you are still unable to commission the
drive, it may be defective.
1. Replace the Control Unit and/or the Power Module.
2. Contact Technical Support.
OK
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A5E36496664A_d
2016-03-17