Alpha Technologies AlphaGen 3.5_5.0kW Kohler COM5 - Manual (Page 61)

TP-6482 8/06 61 Section 6 Controller Operation and Test
7. Install the control board and connect all connectors
removed in step 5.
8. Verify board mounting and connections and then
close the enclosure.
9. Check that the generator set master switch is in the
OFF position.
10. Reconnect the generator set engine starting
battery, negative (--) lead last.
11. Reconnect power to the battery charger, if
equipped.
12. Test run the generator set to verify the rated output
voltage.
Calibration Procedure
Use the following procedure to calibrate the voltage.
1. Connect a voltmeter to the output terminals of the
voltage rectifier.
2. Turn R37 on the circuit board fully clockwise.
3. Start the generator set with no load.
4. Adjust R37 to obtain the voltage output shown in
Figure 6-8.
Generator Set Model Measured Output Voltage, VDC
36 Volt 39
48 Volt 52
Figure 6-8 Output Voltages, VDC