Gmr-32b Phase Controller Manual Jun 2026
Disconnect all power and follow lockout/tagout procedures before beginning installation.
Evaluates amplitude deviations. If line voltages breach pre-configured upper limits (surges) or lower limits (brownouts), the internal relay trips to safely isolate sensitive control logic.
: Simple wiring terminals—though needle clips are recommended for the most secure connection. Wiring Precision
Despite its reliability, the GMR-32B phase controller may occasionally require troubleshooting. Common issues and their solutions are outlined below:
The GMR-32B includes diagnostic LEDs to quickly identify operational faults and minimize industrial downtime. LED Status Indicator Matrix LED Behavior Meaning / Error Condition Corrective Action No auxiliary control power present. gmr-32b phase controller manual
Disconnect the primary load for safety during initial voltage verification.
Ensuring correct rotation and voltage stability.
Proper installation and setup of the GMR-32B phase controller are crucial for ensuring safe and efficient operation. The following steps should be followed:
The (also recognized as the COCIS GMR-32B phase sequence relay) is a specialized three-phase power supply protection device engineered to defend industrial motors, pumps, escalators, and HVAC compressors from catastrophic electrical faults. Operating primarily across standard industrial environments—ranging up to 380VAC/460VAC at 50/60Hz—this micro-controlled electronic device monitors voltage stability and phase balance in real-time. Utilizing a standard 35 mm DIN rail profile, it offers plug-and-play fault detection that stops equipment startup or triggers controlled shutdowns when volatile grid errors occur. LED Status Indicator Matrix LED Behavior Meaning /
Verify if the external emergency stop or safety loop connected to Pin 5 is open. Gate drive wires reversed or broken.
4-20mA, 0-10V DC, 1-5V DC, or 10kΩ Potentiometer Output Phase Control Range: 0 to 180 electrical degrees
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.
Clips the peak power delivered to the load when the control signal reaches 100% (e.g., 20mA or 10V). Turn counter-clockwise to protect undersized loads from over-voltage. gmr-32b phase controller manual
). If an incorrect phase sequence is detected prior to startup, the device locks out the control loop to avoid hazardous mechanical back-rotation.
When a fault occurs, the GMR-32B cuts power output and flashes an alphanumeric error code.
Use the and DOWN arrows to change numeric parameter levels.
