Gmr-32b Phase Controller Manual

Press and hold the button for 3 seconds to enter the configuration menu.

Prevents damage caused by low voltage which increases heat and current draw. 3. Basic Wiring & Operation gmr-32b phase controller manual

: Turn off power, safely swap incoming lines L1 and L2, and turn power back on. The Reverse Phase red LED must turn on immediately, and the downstream contactor must remain open. Switch power off and return the wiring to the original sequence. Troubleshooting Common Faults Press and hold the button for 3 seconds

Connect the positive signal voltage wire to 0-10V and negative to COM . Basic Wiring & Operation : Turn off power,

: Only one copper wire can be inserted per terminal; dual-wiring for jumping connections requires careful handling. Maintenance Needs

What type of are you controlling? (e.g., resistive heating element, inductive motor)

⚠️ : The GMR-32B must only sample raw incoming grid power. Never install the relay on the output side of a Variable Frequency Drive (VFD) or inverter . High-frequency harmonics generated by VFD outputs can corrupt internal tracking electronics, preventing trip states or permanently melting components. Electrical Wiring Guide