Cummins/Onan — Genset Voltage Display Calibration (A)
Adjustments · PowerCommand control voltage display
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan DFE
Before you start
- Contacting hazardous voltage components can cause electrocution, resulting in severe personal injury or death.
- Improper calibration or adjustment of the PowerCommand control can cause equipment malfunction or damage.
Procedure
- Display the Voltage Calibration submenu.
- With the genset OFF, attach a calibrated voltmeter to the AC output from L1 to L2 (L1 to Neutral for single phase).
- Start the genset and allow it to reach normal operating speed.
- Calibrate voltage reading for L1 so display agrees with the calibrated voltmeter.
- Shut the generator set OFF.
- Repeat steps 2 through 5 for L2 and L3.
- Exit menu to Save changes.
Tools required
- Calibrated RMS multimeter (Fluke models 87 or 8060A) Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan DFE →
Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.