Replacing A Control Unit With Enabled Safety Function - Siemens SINAMICS G120 Operating Instructions Manual

10.2

Replacing a Control Unit with enabled safety function

Replacing a Control Unit with data backup on a memory card
Precondition
You have a memory card with the actual settings of the Control unit to be replaced.
If you use a memory card with firmware, after the replacement, you obtain a precise copy
(firmware and settings) of the replaced Control Unit.
Procedure
To replace the Control Unit, proceed as follows:
1. Disconnect the line voltage to the Power Module and (if installed) the external 24 V
2. Remove the signal cables from the Control Unit.
3. Remove the defective Control Unit.
4. Mount the new Control Unit on the Power Module. The new Control Unit must have the
5. Remove the memory card from the old Control Unit and insert it in the new Control Unit.
6. Reconnect the signal cables of the Control Unit.
7. Connect up the line voltage again.
8. The inverter loads the settings from the memory card.
9. After loading, check whether the inverter outputs Alarm A01028.
You have replaced the Control Unit and transferred the safety function settings from the
memory card to the new Control Unit.
Converter with the CU250S-2 Control Unit (vector)
Operating Instructions, 06/2013, FW V4.6, A5E31759476B AB
supply or the voltage for the digital outputs of the Control Unit.
same order number and the same or higher firmware version as the Control Unit that was
replaced.
– Alarm A01028:
The loaded settings are not compatible with the inverter.
Clear the alarm with p0971 = 1 and recommission the drive.
– No alarm A01028:
Perform a reduced acceptance test.
The reduced acceptance test is described in Section Reduced acceptance
(Page 315).
10.2 Replacing a Control Unit with enabled safety function
Corrective maintenance
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