If AC drive's output current exceeds rated value more than100%, THN alarm shows after a period of time. Solution: 1. Reduce load. 2. Make sure the motor is fine. 3. Improved by adjusting P.0, P.7, P.8, P.9, P.19 and P.22. Find quick answers in the Shihlin Electric FAQ—selection, wiring and troubleshooting for circuit breakers, magnetic contactors, AC drives, servo, HMI and PLC control.
If AC drive's output current exceeds rated value more than100%, THN alarm shows after a period of time. Solution:
1. Reduce load.
2. Make sure the motor is fine.
3. Improved by adjusting P.0, P.7, P.8, P.9, P.19 and P.22.
The Shihlin Electric Company Profile introduces a Taiwan-based manufacturer with 70+ years of engineering experience supporting low-voltage power distribution and motor control for industrial customers.
Our scope covers circuit breakers, switchgear and power distribution systems, magnetic switches and magnetic contactors—plus factory automation solutions including inverters, AC drives, servo motors and drives, HMI, controllers, PLC and system integration.
With long-term OEM/ODM collaboration and a growing global network, Shihlin Electric helps you standardize components, reduce downtime, and move from product selection to commissioning with practical technical support.