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

What should we do when error OV2 occurs? | Shihlin Electric

OV2: Overvoltage occurs when the invereter operates at constant speed 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. If the inverter power supply is connected to other high-power equipment (such as large-capacity fans), its start and stop may affect the power quality, may also lead to the inverter to trigger OV2 alarm In this case, a AC input reactor should consider to be installed. 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 OV2 occurs?

Shihlin Electric FAQ: Selection, Wiring & Troubleshooting

What should we do when error OV2 occurs?

OV2: Overvoltage occurs when the invereter operates at constant speed
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. If the inverter power supply is connected to other high-power equipment (such as large-capacity fans), its start and stop may affect the power quality, may also lead to the inverter to trigger OV2 alarm In this case, a AC input reactor should consider to be installed.

What should we do when error OV2 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.