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

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

There are a variety of conditions that may cause ERR, please confirm one by one according to the following instructions: 1. Insufficient power supply voltage, please use a multimeter to confirm whether the R-S-T AC voltage is in accordance with the user manual declaration and whether the P-N DC voltage is normal (not less than 240Vdc for 200V series and not less than 456Vdc for 400V series). 2. Whether the keypad connection cable is loose or whether the keypad and inverter are mismatched. 3. Whether the RES terminal on the control board is wired and in ON state. 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 ERR occurs?

Shihlin Electric FAQ: Selection, Wiring & Troubleshooting

What should we do when error ERR occurs?

There are a variety of conditions that may cause ERR, please confirm one by one according to the following instructions:
1. Insufficient power supply voltage, please use a multimeter to confirm whether the R-S-T AC voltage is in accordance with the user manual declaration and whether the P-N DC voltage is normal (not less than 240Vdc for 200V series and not less than 456Vdc for 400V series).
2. Whether the keypad connection cable is loose or whether the keypad and inverter are mismatched.
3. Whether the RES terminal on the control board is wired and in ON state.

What should we do when error ERR 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.