Shihlin Electric & Engineering Corporation - Shihlin - Ranked No.1 electrical manufacturer in Taiwan with more than 70 years' experience.

What should we do when error OV0 occurs? | Shihlin Electric

OV0: Overvoltage occurs when the inverter has no output 1. Use a multimeter to detect whether the input power supply voltage is abnormal. 2. Check if the motor is grounded and try to change the grounding status (remove the ground wire if it is grounded in present; If it is not grounded in present, try to ground the motor) 3. Use a multimeter to check whether the inverter IGBT module is damaged, please refer to the "Diodes and IGBT check" section of the user manual. Find quick answers in the Shihlin Electric FAQ—selection, wiring and troubleshooting for circuit breakers, magnetic contactors, AC drives, servo, HMI and PLC control.

FAQ: What should we do when error OV0 occurs?

Shihlin Electric FAQ: Selection, Wiring & Troubleshooting

What should we do when error OV0 occurs?

OV0: Overvoltage occurs when the inverter has no output
1. Use a multimeter to detect whether the input power supply voltage is abnormal.
2. Check if the motor is grounded and try to change the grounding status (remove the ground wire if it is grounded in present; If it is not grounded in present, try to ground the motor)
3. Use a multimeter to check whether the inverter IGBT module is damaged, please refer to the "Diodes and IGBT check" section of the user manual.

What should we do when error OV0 occurs? | Shihlin Electric

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.