Zeror.ai Error Codes Siemens F07968

Siemens F07968

Brand: SiemensModel: SINAMICS G120 CU250S2Error code: F07968

What the Fault Means

Fault: Drive: Lq-Ld measurement incorrect

Likely causes

  • A fault has occurred during the Lq-Ld measurement
  • Fault value (r0949, interpret decimal): 10: Stage 1: The ratio between the measured current and zero current is too low
  • 12: Stage 1: The maximum current was exceeded
  • 15: Second harmonic too low

Solution and Safe First Checks

  1. For fault value = 10: Check whether the motor is correctly connected
  2. Replace the power unit involved
  3. De-activate technique (p1909)
  4. For fault value = 12: Check whether motor data have been correctly entered

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.