31 Rgam 12 User Manual _verified_ | Lovato

Check the 12V battery charge. Replace the inline power supply fuse. Incorrect mode selection or active fault.

Lovato Electric RGAM 12 is a microprocessor-based automatic transfer unit designed to manage and monitor stand-by generator sets

Tap the MAINS or GEN keys to step up or down through the main category headings.

Supports single or three-phase systems spanning 70VAC to 624VAC line-to-line. lovato 31 rgam 12 user manual

Buttons for OFF , MANUAL , and AUTOMATIC modes.

| Error Code | Meaning | Likely Cause & Solution | | :--- | :--- | :--- | | | Loss of phase L1 on Mains | Blown fuse, loose wire, or utility outage. Check terminal 1. | | Err 04 | Generator frequency too low | Generator engine speed too low. Check governor. | | Err 08 | Phase rotation error | L1, L2, L3 are not in correct sequence. Swap any two phases on the input side. | | Err 12 | Emergency stop active | The external E-stop button is pressed or the NC contact is open. Check terminals 22-24. | | Err 19 | Internal memory failure | Replace the controller. This is hardware failure. | | Err 24 | Generator failed to start | The controller sent a start signal (out 15-16), but after T2+T3, no voltage was sensed on L1’-L3’. Check fuel, battery, and starter motor. |

Includes 4 distinct digital inputs. Three are negative-switching (pull-to-ground for oil pressure switches, coolant temperature sensors, and low fuel indicators). One is a positive-switching input linked to external keyswitches or remote trigger mechanisms. Check the 12V battery charge

Allows the operator to start and stop the engine manually using the "Start" and "Stop" buttons.

The Lovato 31 RGAM 12 is a robust, highly reliable automatic control module designed for managing generator sets (gensets) and emergency standby power systems. Whether you are an electrical contractor, a system integrator, or a facility manager, understanding the installation, wiring, configuration, and operation of this controller is critical to ensuring uninterrupted power.

Set the dial to match the motor’s or Nameplate Amps . Lovato Electric RGAM 12 is a microprocessor-based automatic

is necessary to avoid physical damage during installation. The hardware operates under the following electrical parameters:

Configurable inputs for oil pressure, water temperature, and fuel level. 2. Front Panel Layout

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