Siemens A37502 fault code meaning
Siemens / A37502
Series: G120-CU250S-2
HF Damper: Damping voltage too high
converter
Meaning: The damper voltage has exceeded the alarm threshold. - The motor harmonic amplitude is too high and has reached the resonance frequency of the output filter. - The current loop has excited strong resonance in the output filter. When the damper voltage is too high, F37002 is issued.
Possible causes
Source: SINAMICS G120, Control Unit CU250S-2 P1609