Zeror.ai Error Codes Siemens A00910

Siemens A00910

Brand: SiemensModel: SINAMICS G120Error code: A00910

What the Fault Means

Alarm: Vdc-max controller de-activated

Likely causes

  • if main supply voltage (P0210) is permanently too high.
  • if motor is driven by an active load, causing motor to goes into regenerative mode.
  • at very high load inertias, when ramping down.

Solution and Safe First Checks

  1. Input voltage must lie within range.
  2. Load must be match.
  3. In certain cases apply braking resistor.

Safety: do not work inside the panel without isolating the power; if unsure, consult a qualified technician.

Related Siemens error codes

Source: the Zeror.ai industrial fault database and Siemens technical documentation. This page is for information; on critical systems follow the manufacturer's manual and authorised service.

Siemens A00910 · Zeror.ai