Zeror.ai Error Codes Siemens F40820

Siemens F40820

Brand: SiemensModel: SINAMICS G120 CU250S2Error code: F40820

What the Fault Means

Fault: CX32 DRIVE-CLiQ: Telegram error

Likely causes

  • A DRIVE-CLiQ communications error has occurred from the Control Unit to the controller extension involved
  • Fault cause: 1 (= 01 hex): Checksum error (CRC error)
  • 2 (= 02 hex): Telegram is shorter than specified in the length byte or in the receive list
  • 3 (= 03 hex): Telegram is longer than specified in the length byte or in the receive list

Solution and Safe First Checks

  1. carry out a POWER ON (switch-off/switch-on).
  2. check the electrical cabinet design and cable routing for EMC compliance
  3. check the DRIVE-CLiQ wiring (interrupted cable, contacts, ...).

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 F40820 · Zeror.ai