| Parameter | Description | Typical Value | Why it matters | | :--- | :--- | :--- | :--- | | | Mains undervoltage threshold | 184V (for 230V nominal) | Prevents transfer when grid voltage sags. | | P03 | Mains return delay (Timer T1) | 60 seconds | Ensures the grid is stable before re-transfer. | | P05 | Generator starting delay (Timer T2) | 5 seconds | Gives the generator time to start before the controller tries to transfer. | | P07 | Generator stabilization delay (Timer T3) | 10 seconds | Allows generator voltage/frequency to stabilize. | | P10 | Generator stop delay (Timer T4) | 180 seconds | Cool-down period for the generator after load is removed. | | P15 | Remote test enable | 1 (Enabled) | Allows a remote switch to simulate a mains failure. | | P22 | Display language | English / Italian | Sets the LCD text language. |
Allows for programmable periodic test runs to ensure the generator is ready for emergencies. Common Alarm Codes The unit displays specific codes to indicate faults: Low oil pressure Engine overheating Failure to start (after preset attempts) Generator voltage failure Maintenance required (based on running hours)
: Consult the RGAM Series Control Unit Guide (Amitron) for wiring and electrical specifications. lovato 31 rgam 12 user manual
Ensure a exists between the mains and generator contactors to prevent simultaneous closing. Ground the control panel chassis reliably. 🎛️ Front Panel Layout and Operating Modes
Before commissioning, the controller parameters must be configured to match the local electrical system and the connected capacitor banks. Entering Setup Mode | Parameter | Description | Typical Value |
In Automatic Mode, the internal microprocessor handles all monitoring and execution routines independently. It operates as follows: The unit perpetually senses the 3-phase mains grid lines.
12VDC nominal (acceptable working range of 9 to 36VDC). | | P07 | Generator stabilization delay (Timer
The best resources for the standard RGAM series are the following manuals and datasheets:
Following the Lovato 31 RGAM 12 user manual is critical to prevent damage to the controller or your switchgear.
The unit features a front panel with a 3-digit display and LED indicators for status and alarms.
Safety is paramount during installation. Isolate all high-voltage AC sources before handling the terminals. Terminal Configurations