Zeror.ai Error Codes Siemens F07404

Siemens F07404

Brand: SiemensModel: SINAMICS G120 CU250S2Error code: F07404

What the Fault Means

Fault: Drive: DC link voltage monitoring Vdc_max

Likely causes

  • The monitoring of the DC link voltage p1284 has responded (only U/f control).

Solution and Safe First Checks

  1. check the line supply voltage.
  2. check the braking module.
  3. adapt the device supply voltage (p0210).
  4. adapt the DC link voltage monitoring (p1284).

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.