PIM00411
13-3
Alarm
Code
Name
Reason
Countermeasure
Disconnection of the motor
wiring
・
Replace the motor cable
E21
Motor cable disconnection
Motor cable is disconnected
Failure of the output device
・
Replace the controller
Pressure sensor connector is not
connected
・
Connect the connector
Corruption of the pressure sensor
harness
・
Replace the pressure sensor
harness
Failure of the pressure sensor
・
Replace the pressure sensor
E30
Pressure sensor error
Pressure sensor is short-
circuited or disconnected
Failure of the controller
・
Replace the controller
Load volume is large
・
Increase the parameter value
"P34: Motor start-up abnormality
judgment time"
Damage of the encoder harness
・
Replace the encoder harness
Motor cable is disconnected or
poor contacted
・
Correctly connect the motor cable
E31
Motor start error
The command and actual motor
rotation is more than the setting
value of parameter "P34:
Motor
start-up abnormality judgment
time"
Failure of the encoder
・
Replace the motor pump
Motor thermistor cable is
disconnected
・
Replace the thermistor
E40
Motor thermistor
disconnection
Motor thermistor is short-
circuited or disconnected
Failure of the controller
・
Replace the controller
Motor cooling fan is stopped
・
Replace the fuse for motor
cooling fan
・
Replace the motor cooling fan
・
Replace the controller
Radiator is clogged
・
Replace or clean the radiator
Rotation speed of the motor is
rising
・
Check the leakage amount in the
main unit side circuit
・
Check the setting of the high-
pressure safety valve
・
Replace the motor pump
The ambient temperature is high
・
Install it in the place where the
ambient temperature is within the
required range
・
Install in well-ventilated place
E41
Motor temperature abnormal
rise
Motor temperature exceeded the
specified value over 30 seconds
or more
Failure of the controller
・
Replace the controller
Fin thermistor cable is
disconnected
・
Replace the thermistor
E42
Radiator fin thermistor cable
break
The heat dissipation fin
thermistor is short-circuited or
disconnected
Failure of the controller
・
Replace the controller
The cooling fan for controller is
stopped
・
Replace the fuse for cooling fan
・
Replace the cooling fan
・
Replace the controller
E43
Fin temperature abnormal
rise
Fin temperature exceeded the
specified value over 30 seconds
Radiator is clogged
・
Replace or clean the radiator