Troubleshooting (3) Trip - EBARA A70W Instruction Manual

8.3 Troubleshooting (3) TRIP

Display Symptom
TRIP: CASING Pump casing temp.
TEMP H.HIGH rises.
TRIP: BP MOTOR BP motor temp.
TEMP HIGH rises.
TRIP: MP MOTOR MP motor temp.
TEMP HIGH rises.
TRIP: BP MOTOR BP current rises.
OVERLOAD (thermal relay trip)
TRIP: MP MOTOR MP current rises.
OVERLOAD (thermal relay trip)
TRIP: Negative phase
PHASE ERROR
Open phase
TRIP: BP MOTOR BP motor current value
NO CURRENT is 0.
TRIP: MP MOTOR MP motor current value
NO CURRENT is 0.
TRIP: STARTFAIL Start fault
ALARM/TRIP EXIST
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.
Interrupt Earth Leakage Breaker (ELB) or CB and lock out power
WARNING
before starting on wiring and maintenance work.
Do not switch on the power supply to the pump until work is
completed.
The pump casing and exhaust piping become extremely hot during
WARNING
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.
Check for gas leaks after installing and maintaining the piping.
WARNING
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.
Check Item
Exhaust pressure rise
Cooling water decrease
Byproduct clog
Duct ventilation insufficient
Cooling water decrease
Motor is in failure
Exhaust pressure rise
Byproduct clog
Object ingestion
Instruments are in failure
Power supply failure
Incorrect wiring
Instruments are in failure
Incorrect wiring
Instruments are in failure
Starting in ALARM / TRIP
condition
Instruments are in failure
( 41)
Corrective Action
Check exhaust piping
Increase water slowly
Replace or overhaul pump
Ventilate sufficiently
Increase water slowly
Replace or overhaul pump
Check exhaust piping
Replace or overhaul pump
Replace or overhaul pump
Replace instruments
Check power supply
Wire R/S/T/E correctly
Replace instruments
Check power supply
Replace instruments
Satisfy all starting
conditions
Replace instruments
EBARA Corporation