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Problem Description:
VFD randomly trips on F0002
 

Repair Actions:

BOP has been disassembled and cleaned. VFD's parameters database was saved on file. Measured incoming voltage was over the VFD's higher limit which is 480VAC. Customer was advised to install a step down transformer.

Comments:

F0002 Overvoltage Cause - DC link voltage (r0026) higher than the overvoltage threshold (refer to parameter r0026) - ground fault Diagnosis & Remedy Please check the following: - is the line supply voltage within the permissible range? - has the DC current DC link monitoring been enabled (P1240) and correctly parameterized? - extend the deceleration ramp (ramp-down time P1121, P1135) - remove the ground fault - is the required braking power within the permissible limits?