GMR32B Phase Controller – Technical Manual
1. Introduction
The GMR32B is a microprocessor-driven, three-phase power controller designed for precise regulation of resistive and inductive loads. Utilizing phase-angle or burst-firing control, it modulates AC power to heaters, transformers, and motors, minimizing harmonic distortion and extending load lifespan.
HVAC Systems: Central air conditioning and large compressors. Machinery: Elevators, escalators, cranes, and oil pumps.
- Wiring examples (summary)
Output: SPDT relay contacts are found on terminals 11, 12, and 14. Mounting: Designed for standard 35mm DIN rail installation. 🛒 Where to Find Replacement Units
5. Troubleshooting Common Issues
"The Green light is on, but the motor won't start."
4.2 Control Signal Wiring
- 4–20 mA current source: Connect positive to IN+, negative to COM. Set DIP switch S1-1 to OFF (current mode).
- 0–10 VDC voltage source: Connect to IN+ and COM. Set S1-1 to ON (voltage mode).
- Manual potentiometer: +10V to pot high side, pot wiper to IN+, COM to pot low side. Set S1-1 to ON, and S1-2 to OFF (internal supply mode).
Often associated with power supply protectors and PLC-compatible modules (e.g., GLOFA-GMR series). Aksa Mühendislik Installation & Safety Guidelines Power Off:
