31 Rgam 12 User Manual - Lovato

The Lovato 31 RGAM 12 is a microprocessor-based automatic transfer unit designed for the comprehensive management of stand-by generating sets. It serves as a central controller that monitors both mains and generator supplies to ensure seamless power transitions during failures. Core Functionality & Operation Modes

Step 2: Mounting

• Direct mounting: Clip the RGAM 12 directly onto the bottom of a compatible Lovato BF contactor (BF09, BF12, BF16, BF38). No tools are needed for this — simply align the clips and push until you hear a click.
• Separate mounting: Use the supplied screw holes to mount the relay on a DIN rail (35 mm) or directly on a panel.

Maintenance: Features a programmable automatic test cycle to ensure the generator is operational during long standby periods. lovato 31 rgam 12 user manual

Provides three-phase control for the mains (70–624VAC) and single-phase control for the generator. Operation Modes: Includes four distinct modes: (disabled), (manual start/stop), (automatic standby), and (periodic manual or automatic testing). Key Specifications & Features Power Supply: The Lovato 31 RGAM 12 is a microprocessor-based

1. Set the dial to the motor’s exact FLA — not higher.
2. Use the NC contact (95-96) in series with the contactor coil — never wire it in parallel.
3. Test the trip function every time you change the motor or wiring.

• L1, L2, L3 (Input 1 - Mains): Voltage sensing for the grid.
• L1’, L2’, L3’ (Input 2 - Generator): Voltage sensing for the genset.
• Outputs: Terminals 15-16 (Generator start/stop relay), 18-19 (Transfer to Genset), 20-21 (Transfer to Mains).
• Digital Inputs: Terminals for Remote Test, Block, and Emergency Stop.

Outputs: Relay outputs for fuel solenoid, starter motor, and alarm signaling. 3. Installation and Wiring Direct mounting: Clip the RGAM 12 directly onto

MAN (Manual): Allows the operator to start and stop the engine manually.

Typical terminal blocks (as per manual):