Err 48.0 Encoder Z-phase error fault in panasonic drive

Err 48.0 Encoder Z-phase error fault in panasonic drive means the Z-phase (index pulse) was not detected where expected, or noise triggered a false Z-phase.

Cause: The Z-phase (index pulse) was not detected where expected, or noise triggered a false Z-phase.

Remedy:

• Check encoder wiring for loose connections.
• Check for noise sources (VFDs, welders) nearby.
• Replace the motor if the optical disc inside is damaged.