Yaskawa DV3 fault code meaning

Series: L7

Reverse rotation detection

drive

Meaning: (Detected only during operation) When the torque command is in the positive (negative) direction, acceleration is in the negative (positive) direction, and the difference between the speed command and motor speed exceeds 30%; The home pulse correction amount for PG (parameter: E5-11) is incorrect; Noise is present in the PG cable (A/B phase); The PG cable wiring is incorrect; The PG cable is open; The PG card is damaged; PG (motor side) is damaged; The conditions described on the left are met; The PG rotation direction setting (parameter: F1-05) and the motor main wiring have opposite phase sequences

Possible causes

Source: Yaskawa L7 Series Elevator Drive Instruction Manual Fault Diagnosis P263