Cummins/Onan ATUC A 800 - 4X / 111 — Undervoltage Sensor Settings
Adjustments · Undervoltage voltage sensor
For the Cummins/Onan ATUC A 800 - 4X / 111, from the Cummins/Onan service manual.
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Procedure
- Turn the PICK-UP VOLTAGE knob to the desired pick-up voltage (voltage at which load is transferred from generator set to commercial power); 90 percent of nominal is usually satisfactory.
- Turn the % DROP-OUT DIFFERENTIAL knob to the desired percent deviation below the pick-up voltage; a setting of 15 percent is often satisfactory.
- After settings are finished, move the operation selector switch on engine control to RMT.
- Close cabinet door.
Specs & values
- Example: 90 percent of 120 volts = 108 volts pick-up
- Example: 15 percent of 108 volts = 16 volts; drop-out = 108 - 16 = 92 volts
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.