Monitors for significant differences between the three phases. Technical Specifications Rated Voltage 380VAC (Standard) or up to 690V depending on model Frequency Contact Capacity 250VAC 6A (AC15) / 30VDC 3A (DC13) Power Consumption Installation 35mm DIN rail mount or screw mounting Operating Temp -10°C to +55°C Installation Guide
Closed during a fault event. Wire this path directly to external pilot lights or PLC error inputs to announce a system trip. Visual Diagnostic Matrix (LED Indicators)
⚠️ : The GMR-32B must always sample power from the input/power side of the three-phase electrical supply. Never install the phase controller on the output side of variable frequency drives (VFDs), inverters, or variable frequency currents. Doing so will cause immediate unit failure or severe diagnostic errors due to pulse-width modulation harmonics. Mounting the Base gmr-32b phase controller manual
Periodically check terminal screw torques, as thermal cycling in industrial environments can loosen connections over time.
Sets the baseline output when the control signal is at zero. Turn clockwise to establish a pre-heat current or baseline voltage. Visual Diagnostic Matrix (LED Indicators) ⚠️ : The
For further information and technical support, refer to the following resources:
| Fault Indicator | Probable Cause | Action Required | | :--- | :--- | :--- | | | Battery low, Fuel solenoid stuck, Air in fuel. | Check battery voltage; Check fuel lines. | | Low Oil Pressure | Low oil level, Faulty sender, Pump failure. | Check dipstick; Replace sender if defective. | | High Temp | Low coolant, Belt broken, Radiator blocked. | Check coolant level; Inspect fan belt. | | Emergency Stop | Emergency stop button pressed. | Reset button; Clear E-Stop alarm on screen. | | Phase Sequence | Incorrect wiring of generator output. | Swap two phases on the alternator output. | Mounting the Base Periodically check terminal screw torques,
By combining theoretical knowledge with practical expertise, users can unlock the full potential of the GMR-32B phase controller and achieve precise control over electrical signals in a wide range of applications.
is a three-phase sequence monitoring relay (also commonly called a phase controller or protector) used to safeguard industrial equipment like motors, compressors, and pumps from power supply faults. It is widely used in central air conditioning units, elevators, and distribution boxes to prevent damage from phase reversal or voltage imbalances. AliExpress Key Technical Specifications