
P.44
PM10U
EBARA
CORPORATION
8.2 Pump Malfunction
When abnormality occurs in the pump, the following message is displayed in the LED display on the
controller. Press STOP/RESET button on the controller after solving the problem. The error will
be reset.
LED
display
Contents Cause Corrective
measures
E01.
□
During low speed
E02.
□
During deceleration
E03.
□
During acceleration
E04.
□
Other
E05.
□
Overload protection
High voltage
protection
・
Highly loaded running
・
Backing pressure of
the pump is abnormal
・
Needs to overhaul pump.
(Foreign object may intrude into pumping room.)
・
Check outlet piping.
E07.
□
Over voltage protection
・ Sudden load shift, voltage in power uprising
・
Check voltage in power is uprising.
E08.
□
EEPROM error
・
Internal memory error
・
Needs to check and repair of electric parts.
E09.
□
Under voltage
・
Power voltage abnormality
・
Check voltage in power is short.
E10.
□
Current detected error
E11.
□
CPU error
・
Inverter error
・
Pump error
・
Needs to check and repair electric parts.
・
Needs to overhaul pump.
E14.
□
Earth protection
E15.
□
Incoming high voltage protection
E19.
□
Temperature detection error
E21.
□
Fin temperature error
E22.
□
CPU communication error
E25.
□
Main circuit error
E30.
□
Driver error
・
Inverter error
・
Pump error
・
There should be source of noise near the pump.
Consider plan to decrease its noise
・
Needs to check and repair electric parts.
・
Needs to overhaul pump.
E35.
□
Thermistor error
E37.
□
Thermostat error
・
Pump temperature uprising
・
Make sure surrounding temperature is proper
range.
・
Needs to check and repair electric parts.
(air-cooled fan may be stopped)
E38.
□
Overload protection during low speed
・
Overload when the pump starts
E50.
□
Shaft lock
・
Overload when the pump starts
E51.
□
Low speed
・
Number of rotation is decreasing
・
Make sure outlet piping is not stuffed.
・
Needs to overhaul pump.
(Foreign object may intrude into pumping room.)
Note 1
)
:Abnormality will not be reset for 10 seconds after alarm occurred.
How to use LED monitor
Fig. 8.1 Pump operation side
LED Display
UP Switch
DOWN Switch
PROGRAM Lamp
STOP/RESET Switch