Pump Malfunction - EBARA EV-A Series Instruction Manual

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.
be reset.
LED
display
Ｅ01.□
During low speed
Ｅ02.□
During deceleration
Ｅ03.□
During acceleration
Ｅ04.□
Other
Overload protection
Ｅ05.□
Ｅ07.□
Over voltage protection
Ｅ08.□
EEPROM error
Ｅ09.□
Under voltage
Ｅ10.□
Current detected error
Ｅ11.□
CPU error
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
Ｅ35.□
Thermistor error
Ｅ37.□
Thermostat error
Ｅ38.□
Overload protection during low speed
Ｅ50.□
Shaft lock
Ｅ51.□
Low speed
Note 1） :Abnormality will not be reset for 10 seconds after alarm occurred.
How to use LED monitor
PM10U
Contents
・
High voltage
Highly loaded running
・
protection
Backing pressure of the pump is abnormal
・ Sudden load shift, voltage in power uprising
・
Internal memory error
・
Power voltage abnormality
・
Inverter error
・
Pump error
・
Inverter error
・
Pump error
・
Pump temperature uprising
・
Overload when the pump starts
・
Overload when the pump starts
・
Number of rotation is decreasing
Cause
LED Display
UP Switch
DOWN Switch
Fig. 8.1 Pump operation side
The error will
Corrective measures
・
Needs to overhaul pump.
(Foreign object may intrude into pumping room.)
・
Check outlet piping.
・
Check voltage in power is uprising.
・
Needs to check and repair of electric parts.
・
Check voltage in power is short.
・
Needs to check and repair electric parts.
・
Needs to overhaul pump.
・
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.
・
Make sure surrounding temperature is proper
range.
・
Needs to check and repair electric parts.
(air-cooled fan may be stopped)
・
Make sure outlet piping is not stuffed.
・
Needs to overhaul pump.
(Foreign object may intrude into pumping room.)
PROGRAM Lamp
STOP/RESET Switch
EBARA
P.45
CORPORATION