Cause: DC link voltage overvoltage comes when the DC bus voltage inside the drive has exceeded its safe operating limit. This fault usually caused by regeneration (braking energy returning to the DC link) or line-related issues.

f30002 DC link voltage overvoltage fault in siemens drive indicates that the the voltage in the intermediate DC circuit of the drive has exceeded its permissible limit.

• Increase the ramp-down tim.
• Check input supply.
• Verify braking resistor (if used).