Before putting your GMR32B into service:
Safety Warning: The GMR32B is not a substitute for a proper thermal overload relay. It monitors voltage, not current. Always pair it with a properly sized overload relay for motor protection.
| Terminal Block | Signal | Notes | |----------------|------------------|--------------------------------| | L1, L2, L3 | 3-phase input | 230V or 400V depending on model | | T1, T2, T3 | Load output | Connect to heater / load | | A1, A2 | Aux supply | 220V AC (check manual) | | 4-20mA IN + / - | Analog setpoint | 0–10V or 4–20mA selectable | | COM, NO, NC | Alarm relay | Fault output |
The keyword "gmr32b+phase+controller+manual+patched" refers to a corrected and annotated version of the technical documentation, often accompanied by patched firmware for the controller’s onboard MCU (Microcontroller Unit).
The GMR32B has a 4-position DIP switch bank. The original manual described Switch 2 as "Unbalance Enable/Disable". The patched manual reveals it actually controls Response Time Mode.
| Switch | Original Function | Patched (Correct) Function | |--------|-------------------|----------------------------| | SW1 | ON=380V, OFF=415V | ON=400-480V, OFF=200-400V | | SW2 | Unbalance ON/OFF | Response Speed: ON=Fast (100ms), OFF=Slow (2 sec) | | SW3 | Auto reset | Auto/Manual reset (ON=Auto, OFF=Manual) | | SW4 | Phase sequence (ON=R-Y-B, OFF=any) | Phase sequence lock: ON=Strict R-Y-B, OFF=Any order allowed |
Patched Recommended Settings for Most Motors:
2D not available
for this part.
| Type of Load: | |
| Duration: | |
| Normal/Transverse | |
| RPM: | |
| Load in lbs @ pitch line: | |
| Safe static stress: | |
| Velocity (feet per minute): | |
| Horsepower: | |
| Torque (inch lbs): | |
| Strength Factor: | |
| Service Factor: | |
|
Information in this chart is to be used as a guide. Consult an engineer for more information. Backlash is ignored in this calculator. |
|
Parts for quotation