Kohler 15ERG, 13ERG, 10ERG manual Adjusting the Voltage, Gain, and Volts/Hz, Voltage Adjustment

8.2.3Adjusting the Voltage, Gain, and Volts/Hz

After setting the system voltage, check the output voltage and adjust, if necessary, using the following procedures. Follow the instructions in Figure 8-6 to adjust the voltage, gain, and volts/Hz while the engine is running. An x in the Display column in Figure 8-6 indicates a number from 0 to 9. Use the up arrow to increase a setting or the down arrow to decrease the setting.

Note: Save your settings before exiting the configuration mode.

Pressing the Select button when SAVE is displayed returns to the first parameter, voltage adjust (1P).

Voltage changes are lost if they are not saved before the generator set shuts down. The generator set continues to run with the new settings until it shuts down but then reverts to the previous settings at the next startup if the changes have not been saved.

Note: A digital multimeter is required for these adjustments.

8.2.4Voltage Adjustment

WARNING

Hazardous voltage. Moving rotor.

Can cause severe injury or death.

Operate the generator set only when all guards and electrical enclosures are in place.

Short circuits. Hazardous voltage/current can cause severe injury or death. Short circuits can cause bodily injury and/or equipment damage. Do not contact electrical connections with tools or jewelry while making adjustments or repairs. Remove all jewelry before servicing the equipment.

Grounding electrical equipment. Hazardous voltage can cause severe injury or death. Electrocution is possible whenever electricity is present. Open the main circuit breakers of all power sources before servicing the equipment. Configure the installation to electrically ground the generator set, transfer switch, and related equipment and electrical circuits to comply with applicable codes and standards. Never contact electrical leads or appliances when standing in water or on wet ground because these conditions increase the risk of electrocution.

Voltage Adjustment Procedure

Note: Refer to Figure 8-6 and Figure 8-7 for instructions to adjust the voltage using the ADC 2100.

1.With the generator set off, connect a digital multimeter to the output leads or an electrical outlet on the load side of the generator set. Set the meter to measure AC voltage.

2.Start the generator set by moving the generator set master switch to the RUN position.

3.Use the ADC controller to adjust the voltage (parameter 1P) until the output voltage reaches the desired value. See Figure 8-5 for the approximate change in voltage per step in parameter 1P.

Measured	Voltage Change per Step, VAC
Voltage, VAC
	Coarse Adjust	Fine Adjust
85--132	5	0.5
180--251	7	0.7

Figure 8-5 Voltage Adjustment

4.Adjust the voltage stability (gain, parameter 2P) to minimize light flicker.

5.Readjust the voltage, if necessary.

6.Readjust the voltage stability (gain, parameter 2P), if necessary.

7.Readjust the voltage (parameter 1P), if necessary.

8.Stop the generator set.

TP-6335 9/04 Reconnection/Adjustments 29