Gmr-32b Phase Controller Manual ((hot)) Official

The device features five status indicators on the faceplate. This allows maintenance technicians to isolate faults instantly without probing active circuitry: Indicator Label Operating State Status / Fault Profile

The NO/NC contacts are typically wired into the control circuit of your motor's magnetic contactor. If a fault is detected (e.g., phases are swapped), the relay will trip, opening the contactor and stopping the motor. Status Indicators:

Solution: Check main line fuses, circuit breakers, and incoming line voltage at L1 and L2.

➜ First, confirm the voltage at the GMR-32B terminals, not elsewhere. If the voltage is truly correct, the device's internal trip thresholds may need adjustment. Some versions allow a ±15% tolerance adjustment via internal potentiometers.

Five distinct front-facing LED indicators provide clear visual troubleshooting data for lineside issues:

The GMR-32B has one and one Normally Closed (NC) output relay contact that switches based on the power condition.

Proper physical placement extends the lifespan of the controller. Environmental Requirements