R250 Automatic Voltage Regulator Caterpillar


Remote Voltage Control

Usage:

C4.4 D4B
In order to use an external voltage adjust potentiometer, perform the following procedure:

  1. Stop the genset.

  1. Remove the jumper "ST4".

  1. The external potentiometer will use the same terminals as the jumper for "ST4". Connect the potentiometer to the terminals for "ST4" .

    Note: The potentiometer that is used for adjusting the voltage externally should be rated at a minimum 1 KΩ and 5 Watt. The potentiometer should also have stop.

  1. Turn the potentiometer "P1" on the regulator to the center position in order for the external adjustment to operate properly.

Note: The potentiometer for voltage adjustment is located on the control panel of gensets that are configured at the factory.

Caterpillar Information System:

R250 Automatic Voltage Regulator Voltage - Adjust
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