Tracks three-phase mains voltage.
If the mains are healthy but the generator keeps running, check the sensing fuses or the voltage calibration in the settings.
Key wiring considerations for the 31 RGAM 12 include:
: For larger installations, "RC" versions with RS485 ports can network up to 32 units under a central controller. lovato 31 rgam 12 user manual
The Lovato 31 RGAM 12 meets global standards, making it suitable for export machinery and UL-listed panels.
Initiates the engine crank cycle upon power failure.
Fully customizable input/output functions and operating parameters. Tracks three-phase mains voltage
The is a microprocessor-controlled automatic transfer unit designed for managing stand-by generating sets. It monitors both the three-phase mains supply and the single-phase generator to ensure seamless power switching during anomalies. Core Technical Specifications
Lovato Electric RGAM 12 is a microprocessor-based automatic transfer unit designed to manage and monitor stand-by generator sets
Before wiring the device, ensure your system matches these electrical requirements: The Lovato 31 RGAM 12 meets global standards,
To help you get the most out of your controller, please tell me: Do you need to (volt/Hz)? Are you trying to clear a specific alarm code ?
: Consulting and modifying setup parameters protected by password access.
| Symptom | Possible Cause | Solution | |---------|----------------|----------| | Motor trips immediately on start | Current setting too low; short circuit; locked rotor | Increase dial to match FLA; check motor windings | | Motor runs, then trips after several minutes | Overload; high ambient temp; incorrect setting | Measure actual motor current with clamp meter; reduce load; clean cooling vents | | Relay will not reset | Thermal element still hot; manual/auto setting wrong; mechanical stuck | Wait 5 minutes; check reset lever; press stop button then reset | | Contactor won’t stay closed | NC contact (95-96) open even without trip | Test continuity; replace relay if internal contact failed | | No trip even when motor draws >12 A | Dial set too high; relay defective; phase loss not detected | Verify setting; test with current injection tool | | Auxiliary contact not working | Loose wiring; contact burned | Check screws; measure voltage at 97-98 during trip |
Includes functional navigation buttons, key switch modes, and dedicated diagnostic status LEDs.
The is your primary source for safe and effective motor protection, but this guide has given you a complete operational walkthrough — from mounting and setting the 9–12 A range to troubleshooting trips and integrating auxiliary contacts.