PIM00587
EN-82
Alarm
Code
Name
Cause
Corrective Action
E11
•
Motor coil short circuit
•
Short circuit of the device output
Replace the motor or motor pump
Encoder failure
E12
Overspeed
Hydraulic oil backflow
Reconfirmation of hydraulic circuit(Check valve
insertion, etc.)
E13
Regenerative brake
overcurrent
Regenerative resistance is short-
circuited
Replace controller
E14
Regenerative brake
overload
Power supply voltage is out of the
specification range
Check the power supply voltage in monitor mode
[n12 : main circuit voltage], and make it in the
required range
Hydraulic oil backflow
Reconfirmation of hydraulic circuit(Check valve
insertion, etc.)
There are many sudden deceleration
operation
Increase the parameter value of “P13 to P28 :
Acceleration time setting and deceleration time
setting”
E15
Insufficient voltage
Low power supply voltage
Increase the voltage within the specified range
E16
Overvoltage
High power supply voltage
Reduce the voltage within the specified range
E17
Motor electronic
thermal relay error
The load torque is larger than usual
Replace the motor or motor pump
Sudden deceleration operation cycle is
short
Increase the parameter value of “P13 to P28 :
deceleration time setting”
Encoder failure
Replace the motor or motor pump
E18
Magnetic pole
detection error
Startup process failure
Turn on the power again
E20
Encoder
disconnection
Disconnection or connection failure of
the encoder harness
•
Replace controller
•
Replace the motor or motor pump.
Encoder connector is disconnected
Replace controller
Damage of the encoder harness
•
Replace the motor or motor pump
Encoder failure
E21
Motor wiring
disconnection
Motor wiring disconnection, connection
fault
Replace the motor or motor pump
E24
Open phase in power
supply
Voltage drop in one of the three phases Check the power supply wiring.
E30
Pressure sensor
system error
The pressure sensor value is abnormal Check the pressure sensor harness.
E31
Motor start error
Load volume is large
Increase the parameter value "P34: Motor start-up
abnormality judgment time"
E40
Motor thermistor
disconnected/short
circuited
Motor thermistor wiring is disconnected
or short circuited
•
Check the internal connection of the controller
•
Replace the motor or motor pump.
