60
PIM00504
Alarm
Code
Name Cause
Corrective
Action
E21
Motor wiring
disconnection
One phase of the motor
wiring is not live.
Motor wiring
disconnection,
connection fault
•
Reconnect and check the
connection.
•
Replace the motor or motor pump.
Output device failure
Replace the controller.
Connector fault at
controller
E22
Inverter PCB internal
error
Controller failure
Replace the controller.
E23
Current sensor error
There is an error in the
current detection section
and detection is not
possible.
Motor wiring
disconnection,
connection fault
•
Reconnect and check the
connection.
•
Replace the motor or motor pump.
Output device failure
Replace the controller.
Connector fault at
controller
E24
Open phase in power
supply
One phase in the input
power supply is not live.
Disconnection of the
power supply cable
•
Check the power supply wiring.
•
If there is a disconnection in the
wiring, replace it.
Deterioration of the
power supply
environment
Improve the power supply
environment.
Power supply cable
internal harness
connection fault,
disconnection
Replace the controller.
E25
Voltage sensor error
There is an error in the
voltage detection section
and voltage detection is
not possible.
Controller failure
Replace the controller.
E26
Motor control error
Motor control fault
Set value for the high-
pressure safety valve is
too high
Adjust the setting of the high-
pressure safety valve to the
operation pr 0.5 MPa.
Controller failure
Replace the controller.
E29
Motor start error
The motor fails to transition
to normal operation
condition at starting.
Excessive load torque
at starting due to
increased oil viscosity
Replace the hydraulic oil.
Excessive load torque
at starting due to
damage to the motor
pump bearing
Replace the pump or motor pump.
E30
Pressure sensor system
error
The motor pressure sensor
is disconnected or short
circuited.
Pressure sensor
connector is not
connected
Connect the connector.
Damaged pressure
sensor harness
Replace the pressure sensor
harness.
Pressure sensor failure
Replace the pressure sensor.
Controller failure
Replace the controller.
