Pramac Ac03 Manual

: Toggles the manual or automated control auxiliary relays for an external fuel transfer system. Visual LED Indicators

The AC03 serves as the "brain" of the generator, monitoring critical health metrics: Live Monitoring:

When utility power returns, the AC03 monitors grid stability. Once stable, it transfers the load back to the mains, runs the generator for a programmed cool-down period, and returns to standby. 3. Test Mode (TEST) pramac ac03 manual

The "Pramac AC03 manual" outlines four primary operating modes:

| | Button/LED | Description & Function (Based on Operator Guide) | | :--- | :--- | :--- | | 1 | START (Green) | Initiates the engine start sequence. Works only in MAN mode . | | 2 | STOP (Red) | Initiates the stop sequence. Works only in MAN mode . Pressing and holding for >2s cancels current phases (like cooling). | | 3 | FAULT RESET | Acknowledges alarms and deactivates the horn. Inactive alarms disappear; active ones are 'confirmed'. | | 4 | FUEL PUMP | Manually activates the fuel pump. Works as long as the button is pressed. | | 5 | MODE Left | Changes the operation mode (cycles through OFF, MAN, AUT, TEST) on the main screen. | | 6 | MODE Right | Changes the operation mode (cycles through OFF, MAN, AUT, TEST) on the main screen. | | 7 | GCB (Gen-set CB) | Manually opens/closes the Generator Circuit Breaker. Works in MAN and TEST modes . Closing may be blocked if conditions are invalid. | | 8 | MCB (Mains CB) | Manually opens/closes the Mains Circuit Breaker. Caution: Disconnects load from the mains supply. | : Toggles the manual or automated control auxiliary

The controller monitors the main utility grid via the ATS signaling lines.

Essential for technicians: the schematic shows internal components (transformer, rectifier bridge, capacitor bank, output relay). Use this only if qualified; capacitor discharge can take up to 5 minutes after disconnection. | | 2 | STOP (Red) | Initiates the stop sequence

[System Modes] ├── OFF Mode --> Engine block blocked / maintenance safe mode ├── MAN Mode --> Full manual starting, stopping, and breaker control ├── AUT Mode --> Fully autonomous monitoring, AMF startup, and ATS switching └── TEST Mode --> Manual test sequence under load or off-load configurations Pramac AC-03 Controller Operator Guide | PDF - Scribd

Monitors oil pressure, coolant temperature, engine speed, and battery voltage.

: Active exclusively in Manual (MAN) Mode to initiate the engine cranking sequence.