Yaskawa J1000 Compact Vector Control Drive - Manual (Page 161)

Digital Operator Display Fault Name
One of the motor phases is missing
(U/T1, V/T2, W/T3).
Check motor wiring and correct problems.
Current exceeded the current rating
of the drive.
• Check the motor wiring for a short between motor lines.
• If a magnetic contactor is used between motors, ensure it is on.
• Replace the drive.
The current is too low.
Attempted Auto-Tuning without
motor connected to the drive.
Connect the motor and perform Auto-Tuning.
Current detection signal error. Replace the drive.
5.5 Auto-Tuning Fault Detection
YASKAWA ELECTRIC TOEP C710606 47C YASKAWA AC Drive – V1000 Quick Start Guide 161
5
Troubleshooting