Alarm
Code
Name
Cause
Corrective Action
E43
Abnormal temperature
rise at a radiating fin
The cooling fan has stopped.
Replace the cooling fan.
Replace controller.
The radiator is clogged.
Clean or replace the radiator.
The motor rotation speed has risen.
Check if the amount of oil leaking from the
circuit at the main machine has increased.
Check, and re-set, the safety valve.
Replace the motor pump.
The ambient temperature is too high.
Establish an environment with an ambient
temperature not exceeding 40 C, by changing the
installation location, cooling with a fan, etc.
Controller failure
Replace controller.
E46
Board thermistor
disconnection/short
circuit
Controller failure
Replace controller.
E47
Abnormal temperature
at board
Controller failure
Replace controller.
The cooling fan has stopped.
Replace the cooling fan.
Replace controller.
The radiator is clogged.
Clean or replace the radiator.
The ambient temperature is too high.
Establish an environment with an ambient
temperature not exceeding 40 C, by changing the
installation location, cooling with a fan, etc.
E64
Dry operation error
The oil level is low.
Replenish the hydraulic oil.
Oil intake takes time.
running judgment
E66
Temperature error due
to pressure holding
rotational speed drop
The throttle is clogged.
Clean the throttle of the safety valve.
Adjust the throttle.
Replace the hydraulic oil.
E90
Internal error
Controller failure
Replace controller.
The software versions are
inconsistent.
Voltage drop due to instantaneous
power failure
Turn the power off and back on.
E91
CPU error
The software processing load is
excessive.
Turn the power off and back on.
Replace controller.
E95
Software consistency
error
Hardware identification error
Replace controller.
Mismatch between board and model
parameters
E96
Internal
communication error
Controller internal communication
error
Replace controller.
The CPU does not work
Communication fault due to noise
Controller failure
