EBARA EV-A03 - Interpreting Malfunction Codes

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 prope
r
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