Black Start Unit

480 V • 60 Hz · LV black start unit

Select a procedure to run step-by-step.

Immediate shutdown – no cool-down

Physical checks before starting the unit

Engine start, breaker close & energize

Open breaker, cool-down & engine stop

Immediate shutdown – no cool-down

Quick Reference

Rated Output480V / 60 Hz (verify nameplate)

Rated Speed1800 RPM (4-pole) / 3600 RPM (2-pole)

Oil Pressure (run)Normal range — verify nameplate / manual

Coolant Temp (run)Normal range — verify nameplate / manual

Fuel TypeDiesel — no water or contamination

Crank TimeoutPanel default ~10–15 sec cranking

Warm-Up Before Load2–3 minutes idle before closing breaker

Cool-Down Before Stop3–5 minutes unloaded before stopping

tripLOW OIL PLow Oil Pressure

Stop engine immediately — do not run without oil pressure.

tripHI COOLANTHigh Coolant Temp

Stop engine — check coolant level, thermostat, radiator.

tripOVERCRANKFail to Start

Engine failed to start. Check fuel, battery, starter motor.

tripOVER VOLTOutput Over-Voltage

Open output breaker. Check AVR / voltage regulator.

warningUNDER VOLTOutput Under-Voltage

Check load, AVR, governor settings. Do not close breaker.

warningOVER FREQOver Frequency

Check governor. Do not apply load until frequency stabilizes.

warningUNDER FREQUnder Frequency

Check governor setting and engine speed.

warningBATT LOWLow Battery Voltage

Check battery charger, terminals, and battery condition.

tripOVERLOADGenerator Overload

Reduce load. Open non-critical breakers.

tripE-STOPEmergency Stop Active

Reset only after identifying and correcting the root cause.