EBARA EV-S20, Инструкция по эксплуатации, Страница: 111 / 113

P.92
10.2 Troubleshooting (2) WARNING
Display Symptom Check Item Corrective Action
WARN: WATER
FLOW LOW Water flow is reduced. Coupler is disconnected. Connect coupler.
Pressure is not sufficient. Apply sufficient pressure.
Root valve is closed. Open valve.
Water pipe is clogged. Clean or replace piping.
Tube fittings are loosened. Re-tighten.
Instrument failure Replace instrument.
Outlet & inlet pipes are
reverse. (flow value 0 L/min) Connect pipes correctly.
WARN: PUMP N2
FLOW LOW Pump N2 flow is
reduced. N2 port is not connected. Connect N2 pipe fitting.
Primary pressure is
insufficient. Apply sufficient pressure.
Regulator setting value
LOW. Increase pressure setting.
N2 pipe is clogged. Replace N2 piping.
Leaks on N2 pipe. Check the fittings.
Instrument failure Replace instrument.
WARN: CASING
TEMP HIGH Casing temperature
rises. Pump back pressure rises. Check exhaust pipe
Increase of the gas load. Reduce the inflow gas
amount.
Accumulation of by-product Replace or overhaul pump.
Cooling water flow is
reduced. Increase cooling water flow.
WARN: BP MOTOR
TEMP HIGH
WARN: MP MOTOR
TEMP HIGH Booster pump (BP)
motor coil temp. rises.
Main pump (MP)
motor coil temp. rises. Cooling water flow is
reduced. Cool pump thoroughly and
reset.
Motor failure Replace or overhaul pump.
WARN: BP DRIVER
TEMP HIGH ####
WARN: MP DRIVER
TEMP HIGH #### Booster pump (BP)
driver temp. rises.
Main pump (MP)
driver temp. rises. Cooling water flow is
reduced. Increase cooling water flow.
WARN:
## COMM.ERROR Communication is not
established. Connection error of the
instrumented units Check the connection of the
instrumented unit.
Instrument failure Replace instrument.
WARN: PUMP BOX
TEMP HIGH Temp. rises in pump
cover. Cooling water flow is
reduced. Increase cooling water flow.
The ambient temperature is
high. Confirm the ambient
temperature (less than 30
℃
).
WARN:PUMP N2
VALVE ERROR N2 valve open. Setting is N2 0 mode. Close N2 valve.
(at the side of pump)
After you have taken the remedial actions above, reset the pump. If the problem that has caused the
WARNING signal still remains, the WARNING display will appear again even after you have reset.
PM10U
EBARA
CORPORATION