Generator Controller

Problem	Items to Check, Troubleshooting Steps, Remedies
No power-up	Ensure the controller power switch below the controller is turned on. Ensure the control power disconnect switch on the 24 VDC distribution panel is turned on. Check the fuse that provides power to the generator controller (Position 11) in the 24VDC distribution panel. Verify that the battery connections are secure and that the battery voltage is 24VDC minimum. Check the corresponding wire and terminal connections at the back of the fuse panel. Check the battery power connections at the back of the generator controller, terminals 2 and 3. Verify that there is battery voltage measured on these terminals with respect to ground.
Controller powers down shortly after turning the controller power switch on	The VPS800A-T4 has a voltage monitoring and automatic shut off system to prevent the 24VDC system from being drained by parasitic loads when the generator is not running. When the monitoring system detects that the engine starting batteries have dropped in voltage, a relay is tripped to disconnect all non-essential loads. This includes removing power from the generator controller. By toggling the controller power switch off and then on, power will be supplied to the generator controller for a preset time duration. The engine must be started within this time frame or power will be switched off again. The VPS800A-T4 includes a solar-powered battery charger system that helps maintain the engine batteries at a full state of charge.

Problem

Items to Check, Troubleshooting Steps, Remedies

No power-up

Fuse - position 11 Ensure the controller power switch below the controller is turned on.

Ensure the control power disconnect switch on the 24 VDC distribution panel is turned on.

Check the fuse that provides power to the generator controller (Position 11) in the 24VDC distribution panel.

Verify that the battery connections are secure and that the battery voltage is 24VDC minimum.

Check the corresponding wire and terminal connections at the back of the fuse panel.

Check the battery power connections at the back of the generator controller, terminals 2 and 3. Verify that there is battery voltage measured on these terminals with respect to ground.

Controller powers down shortly after turning the controller power switch on

The VPS800A-T4 has a voltage monitoring and automatic shut off system to prevent the 24VDC system from being drained by parasitic loads when the generator is not running. When the monitoring system detects that the engine starting batteries have dropped in voltage, a relay is tripped to disconnect all non-essential loads. This includes removing power from the generator controller. By toggling the controller power switch off and then on, power will be supplied to the generator controller for a preset time duration. The engine must be started within this time frame or power will be switched off again.

The VPS800A-T4 includes a solar-powered battery charger system that helps maintain the engine batteries at a full state of charge.