Zeror.ai Error Codes Siemens A01066

Siemens A01066

Brand: SiemensModel: SINAMICS G120 CU250S2Error code: A01066

What the Fault Means

Alarm: Buffer memory: 70% fill level reached or exceeded

Likely causes

  • The non-volatile buffer memory for parameter changes is filled to at least 70%
  • This can also occur if the buffer memory is active (p0014 = 1) and parameters are continually changed via a fieldbus system.

Solution and Safe First Checks

  1. p0971 = 1
  2. switch off/switch on the Control Unit

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 A01066 · Zeror.ai