A "missing phase" is one of the most damaging faults for a three-phase motor. The GMR-32B continuously monitors each phase. If a phase is lost either before startup () or while the motor is running ( dynamic ), the protection activates, and the "缺相" LED lights up. The relay will trip after a short delay (approx. 1 second) to prevent the motor from overheating and burning out.

The GMR-32B features an onboard 8-position DIP switch to set input signals and firing modes without requiring an external software interface. Input Signal Selection Selected Input Mode 4–20 mA Current Loop 0–10 V DC Voltage 0–5 V DC Voltage Ωcap omega Manual Potentiometer Firing Control Modes

Check line fuses and confirm correct voltage at the power terminals. Phase rotation error or missing phase.

Proper physical placement prevents thermal runaway and electrical noise interference. Mounting Steps

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Gmr-32b Phase Controller Manual Jun 2026

A "missing phase" is one of the most damaging faults for a three-phase motor. The GMR-32B continuously monitors each phase. If a phase is lost either before startup () or while the motor is running ( dynamic ), the protection activates, and the "缺相" LED lights up. The relay will trip after a short delay (approx. 1 second) to prevent the motor from overheating and burning out.

The GMR-32B features an onboard 8-position DIP switch to set input signals and firing modes without requiring an external software interface. Input Signal Selection Selected Input Mode 4–20 mA Current Loop 0–10 V DC Voltage 0–5 V DC Voltage Ωcap omega Manual Potentiometer Firing Control Modes gmr-32b phase controller manual

Check line fuses and confirm correct voltage at the power terminals. Phase rotation error or missing phase. A "missing phase" is one of the most

Proper physical placement prevents thermal runaway and electrical noise interference. Mounting Steps The relay will trip after a short delay (approx

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