Gmr-32b Phase Controller Manual Updated Official

| Specification | GMR-32B / Smart Series Value | | :--- | :--- | | | 200-500VAC (Standard), up to 690VAC (Smart Series) | | Frequency | 50 / 60 Hz | | Rated Control Circuit Voltage | Three-phase 220V, 380V, 400V, 415V, 440V, 460V | | Relay Contact Capacity | 5A at 250VAC (resistive load) | | Voltage Measurement Accuracy | ±1% of reading | | Over/Under Voltage Set Point | Adjustable approx. ±15% of nominal voltage | | Over/Under Voltage Hysteresis | 7V (prevents relay chatter) | | Voltage Imbalance Trip Level | >10% or >20% (model dependent) | | Response Time (Trip Delay) | Phase Loss: 1s / Phase Sequence: 0.1s / Over/Under Voltage: 7s / Imbalance: 5s | | Reset Mode | Automatic (restores function when fault clears) |

Connect the signal wire to Terminal 2 and return to Terminal 3. Set the internal DIP switch (SW1) to the 'ON' position to enable the internal 250-ohm shunt resistor. gmr-32b phase controller manual

Cause: The internal heatsink temperature has exceeded 85°C. | Specification | GMR-32B / Smart Series Value

It prevents motor operation if phases are connected in the wrong order, which is critical for protecting expensive industrial machinery from running in reverse and causing damage. Cause: The internal heatsink temperature has exceeded 85°C

Verify the external enable switch is closed.