A0910 alarm in siemens micromaster 430 or MM430 drive
How can resolve problem A0910 alarm in siemens micromaster 430 or MM430 drive ?
Cause : Vdc-max controller de-activated. Vdc max controller has been de-activated, since controller is not capable of keeping DC-link voltage (r0026) within limits (P2172).
- Occurs if main supply voltage (P0210) is permanently too high
- Occurs if motor is driven by an active load, causing motor to go into regenerative mode
- Occurs at very high load inertias, when ramping down
Diagnose & Remedy
Check the following:
1. Input voltage (P0210) must lie within range
2. Load must be match