EBARA A07V, Инструкция по эксплуатации, Страница: 55 / 69

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8.3 Troubleshooting (3) TRIP
Display Symptom Check Item Corrective Action
Exhaust pressure rise Check exhaust piping
Cooling water decrease Increase water slowly
Byproduct clog Replace or overhaul pump
TRIP: CASING
TEMP H.HIGH Pump casing temp.
rises.
Duct ventilation insufficient Ventilate sufficiently
Cooling water decrease Increase water slowly TRIP: BP MOTOR
TEMP HIGH
TRIP: MP MOTOR
TEMP HIGH BP motor temp.
rises.
MP motor temp.
rises.
Motor is in failure Replace or overhaul pump
Exhaust pressure rise Check exhaust piping
Byproduct clog Replace or overhaul pump
Object ingestion Replace or overhaul pump
Instruments are in failure Replace instruments
TRIP: BP MOTOR
OVERLOAD
TRIP: MP MOTOR
OVERLOAD BP current rises.
(thermal relay trip)
MP current rises.
(thermal relay trip)
Power supply failure Check power supply
Incorrect wiring Wire R/S/T/E correctly Negative phase
Instruments are in failure Replace instruments
TRIP:
PHASE ERROR
Open phase Incorrect wiring Check power supply
TRIP: BP MOTOR
NO CURRENT
TRIP: MP MOTOR
NO CURRENT BP motor current value
is 0.
MP motor current value
is 0. Instruments are in failure Replace instruments
Starting in ALARM / TRIP
condition Satisfy all starting
conditions TRIP: STARTFAIL
ALARM/TRIP EXIST Start fault
Instruments are in failure Replace instruments
After taking corrective action, input RESET signal or push RESET button. The pump will
not RESET while the cause of the TRIP remains. In remote operation mode, interrupt
external START signal before resetting.
WARNING
Interrupt Earth Leakage Breaker (ELB) or CB and lock out power
before starting on wiring and maintenance work.
Do not switch on the power supply to the pump until work is
completed.
WARNING
The pump casing and exhaust piping become extremely hot during
operation and for some time after stopping.
Keep pump and exhaust piping away from contact with personnel and
flammable substances.
Do not remove the pump cover during operation.
WARNING
Check for gas leaks after installing and maintaining the piping.
Gas leaks will result in the discharge of harmful and dangerous
substances and in abnormal reactions due to the admission of air into
the pump.
EBARA Corporation