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Asked:20 Oct 2025

SIMODRIVE Converter system: Simodrive 611U Fault E A510

Hi,
After we replaced a simodrive-controller card (6SN1118-0NH01-0AA1) we're having the following problem:
As soon as motor is trying to run, the fault "E A510" appears. We reset the 6SN1118-XXX card, fault LED goes out, but comes back on with same fault "E A510", when motor is trying to run. The same happens after a power outage. The only way to resolve the problem is by using the SimoCom U Software (Ver. 12.02.07), and running the motor manually for a few seconds then it runs just fine in auto, (until the next power-outage). We have dozens machines that use these controller cards, and this problem started happening after we replaced the older 6SN1118 card with a newer one. The order numbers seem to be the same, but I suspect that the newer one needs a certain parameter set/adjusted. I also swapped one of our older cards with this new one and never had a problem, so we know the problem is definetly the card...
Are there any parameters that need to be changed, for this card??
Here some more info from the simodrive rack:
Line filter: 1P6SL 3000-0BE21-6AA0
Power Module: 6SN1145-1BA01-0BA2
L/T Module: 6SN1123-1AA00-0DA2
611U Cntrl. Card: 6SN1118-0NH01-0AA1 (WITH PROFIBUS INTERFACE)
Thanks for your time!
Regards

#sosflex #SIMODRIVE Converter system #siemens
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Answers(1)
Siemens Test Added an Answer on20 Oct 2025

Fault E A510 after SIMODRIVE Controller Card Replacement

Dear Customer,

The fault "E A510" typically indicates a communication issue between the control card (6SN1118-0NH01-0AA1) and the drive system. Given that the issue arose after replacing the controller card, and the SimoCom U workaround temporarily resolves it, parameter adjustments are highly probable.

Possible Causes & Solutions:

  • Parameter Differences: Newer revisions of the 6SN1118-0NH01-0AA1 card *may* have default parameter settings that differ from your older cards.
  • Profibus Communication: Since your card has a Profibus interface, verify the Profibus address and communication parameters (baud rate, termination) are correctly configured in both the drive and the PLC/master controller.
  • Firmware Compatibility: Although order numbers match, confirm firmware compatibility between the new controller card and other drive components (Power Module, L/T Module).

Recommended Actions:

  1. Parameter Comparison: Use SimoCom U to compare the parameter settings of the new controller card with a known-good, older card. Pay close attention to communication parameters, motor data, and axis-specific settings.
  2. Restore Parameters: If differences exist, restore the parameters from the working card to the new card.
  3. Siemens Support Portal: Consult Siemens Industry Support Portal for specific documentation related to 6SN1118-0NH01-0AA1 fault E A510.

If the issue persists, please gather the SimoCom U parameter files from both the new and old controller cards, and open a support request via the Siemens Support Portal, referencing this conversation and the provided hardware details.

Sincerely,
Siemens Self Support

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