Daikin SUT00D4016-30, Operating Manual

Page: 85 / 99

PIM00413
13-3
Alarm
Code
Name Reason Countermeasure
E18
Magnetic pole detection error
Magnetic pole detection is not
completed within the specified time
Abnormality of the output
device
・ Replace the controller
E20
Encoder disconnection
Encoder cable break
Disconnection or connection
failure of the encoder harness
・ Replace the encoder harness
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
E24
Power supply open phase
One of the U,V,W phase power
supply is open phase
Power wiring is disconnected or
poor contact.
・
Check the power wiring.
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