Zeror.ai Error Codes Siemens A01840

Siemens A01840

Brand: SiemensModel: SINAMICS G120 CU250S2Error code: A01840

What the Fault Means

Alarm: SMI: Component found without motor data

Likely causes

  • An SMI/DQI without motor data has been found (e.g
  • SMI installed as replacement part)
  • Alarm value (r2124, interpret decimal): Component number from target topology.

Solution and Safe First Checks

  1. Download the SMI/DQI data (motor/encoder data) from the data backup again (p4690, p4691)
  2. Carry out a POWER ON (switch-off/switch-on) for this component.

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 A01840 · Zeror.ai