Before applying power, locate the internal DIP switches or jumpers on the GMR-32B control board to match your input signal type:
Monitoring compressor power supply. 2. GMR-32B Technical Specifications and Features
The GMR-32B Phase Controller is a high-performance, industrial-grade power management device designed for precise electrical phase regulation, motor speed control, and heating element modulation. This manual provides comprehensive instructions for installation, wiring, programming, and troubleshooting the GMR-32B unit. 1. Product Overview and Technical Specifications
Mount the controller inside an IP54 or better industrial enclosure if operating in dusty or humid environments. gmr-32b phase controller manual
Press and hold for 3 seconds to enter the configuration menu. Use UP or DOWN to scroll through the parameter codes. Press ENTER to edit a parameter value. Adjust the value using UP/DOWN , then press ENTER to save. Key Parameter Codes P-01: Control Input Mode 0 : 4-20mA Input (Default) 1 : 0-10V DC Input 2 : Manual Potentiometer P-02: Output Soft-Start Time
The exact you are controlling (e.g., resistive heater, inductive motor)?
The physical base of the controller is designed to provide robust resistance against high temperatures and high humidity. Before applying power, locate the internal DIP switches
Identifies structural voltage asymmetry across lines, which causes excessive heat buildup in electric motor windings. Installation and Mechanical Mounting
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Connect to the terminal side of your industrial load. Press and hold for 3 seconds to enter the configuration menu
Use fast-acting semiconductor fuses to protect internal thyristors from overcurrent. 2. Technical Specifications Specification Range Input Voltage 110V – 480V AC (±10%), 50/60 Hz Current Rating 32 Amps continuous at 40°C ambient temperature Control Signal Options 4-20mA, 0-10V DC, 1-5V DC, or Potentiometer (10kΩ) Output Regulation Range 0% to 98% of maximum line voltage Phase Control Type Phase-angle fired or Zero-cross burst fired (selectable) Cooling Method Forced air or heavy-duty aluminum heatsink anodized Ambient Operating Temp -10°C to +55°C (non-condensing environment) 3. Installation and Mounting Dimensions
Auxiliary voltage source for manual potentiometer control.
: Mount the device upstream of structural control circuits.