If The Converter No Longer Responds - Siemens SINAMICS G120D Series Operating Instructions Manual
Distributed converter, control units cu240d-2 with encoder evaluation.
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Also See for SINAMICS G120D Series:
- List manual (910 pages) ,
- Operating instructions manual (398 pages) ,
- Original instructions manual (382 pages)
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Corrective maintenance
9.4 If the converter no longer responds
9.4
If the converter no longer responds
If the inverter no longer responds
For example, when loading an incorrect file from the memory card, the inverter can go into a
state where it can no longer respond to commands from the operator panel or from a higher-
level control system. In this case, you must reset the inverter to its factory setting and
recommission it. This inverter state is manifested in two different ways:
Case 1
● The motor is switched off.
● You cannot communicate with the inverter, either via the operator panel or other
interfaces.
● The LEDs flicker and after 3 minutes the inverter has still not powered up.
Procedure
Proceed as follows to restore the inverter factory settings:
1. Remove the memory card if one is inserted in the inverter.
2. Switch off the inverter power supply.
3. Wait until all LEDs on the inverter go dark. Then switch on the inverter power supply
again.
4. Repeat steps 2 and 3 as often as required until the inverter outputs fault F01018:
5. Set p0971 = 1.
6. Switch off the inverter power supply.
7. Wait until all LEDs on the inverter go dark. Then switch on the inverter power supply
again.
The inverter now powers up with the factory settings.
8. Recommission the inverter.
You have restored the inverter factory settings.
Case 2
● The motor is switched off.
● You cannot communicate with the inverter, either via the operator panel or other
interfaces.
● The LEDs flash and are dark - this process is continually repeated.
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Converter with control units CU240D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34262100B AB
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