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Hello, the trouble that We've got a few days ago is the next:
*ROBICON doesn´t obey STOP command from PROFIBUS, so we had to stopped from the emergency button.
*ROBICON doesn´t decelerate below 400rpm, it reach 1200 rpm (rpm nom=1792) like the minimun
*The motor Inom=176A, ITOT=200A(drive current out) and we have at INPUT about 120A, I've connect a PC to the drive via TCP/IP and the results were:
Ids doesnt follow property Ids reference, same case with Iqs
and the Debug tool shows:
Debug tool capture
We change the ISA BACK PLANE board and we solved the problem only for a week. I hope somebody give us any idea to atack this trouble.
Regards.
Darrent.
Dear Darrent,
Based on your description, the intermittent issues with the ROBICON drive (ignoring STOP commands, deceleration problems, and Ids/Iqs discrepancies) suggest a potential hardware fault, despite the temporary fix with the ISA BACK PLANE board. The recurring nature points to an underlying problem not fully resolved by that replacement.
1. **Detailed Fault Log Analysis:** Download and thoroughly analyze the complete fault log from the drive using STAR 2000 or similar tools. This may provide more specific error codes.
2. **Signal Tracing:** Use an oscilloscope to trace critical signals (STOP command, encoder feedback, current feedback) to identify any anomalies.
3. **SiePortal Resources:** Consult the Siemens Industry Online Support (SiePortal) for known issues and solutions related to ROBICON drives and PROFIBUS communication.
Please provide the drive's firmware version and any specific fault codes for a more targeted analysis.
Sincerely,
Siemens Self Support
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