Chapter 9 Troubleshooting
POWER CON
PCON-CB/LC
227
Alarm
Code
Alarm Level Alarm Name Cause/Treatment
0BA Home sensor
non-detection
Cause : This indicates that the home-return operation of
the actuator equipped with origin sensor (option
except rotary actuator) is not completed in
normal condition.
1) Work is interfering with peripheral equipment
in the middle of home return.
2) Large slide resistance of the actuator itself
3) Installation failure, breakdown or
disconnection of the home sensor
Treatment : In the case that the work does not interfere with
anything, the cause 2) or 3) is supposed. In such
case, please contact IAI.
0BE Home return timeout Cause : Home return does not complete after elapse of a
certain period after the start of home return.
Treatment : This error does not occur in normal operation.
The combination of the controller and actuator
may be incorrect. Please contact IAI.
0C0 Actual speed excessive Cause : This indicates the number of motor rotation
exceeded the number of allowable rotation.
1) The slide resistance of the actuator is locally
high.
2) The load is increased too much due to a
external force.
With the reasons above, it can be considered a
sudden speed increase has occurred before
detecting the servo error.
Treatment : Even though this would not occur in normal
operation, check if there is any abnormality in the
parts assembly condition. Also check if there is a
possibility that an external force may be applied
in the direction of the actuator movement.
0C1
Operation
release
Servo error Cause : It indicates 2 seconds has passed without
making a move since a move command was
received.
1) Connection error or wire breakage of
motor/encoder cables.
2) Brake is not released (when equipped with a
brake).
3) Load to the motor is high due to external
force.
4) The resistance in the actuator sliding
operation is large.
Treatment : 1) Check for the motor/encoder cable wiring
condition.
2) Supply 24V DC 150mA to the BKRLS terminal
on the power supply connector and if you can
see an improvement, it is considered the
controller failure. Please contact IAI.
3) Confirm that there is no error in the
mechanical part assembly condition.
4) If the loaded weight is within the allowable
range, turn the power OFF and check the
resistance in sliding operation by moving the
slider with hand.
0C8
Cold start
Overcurrent Cause : The output current in the power circuit section is
increased abnormally.
Treatment : This alarm will not be generated in normal
operation. It can be considered as the insulation
degradation of the motor winding or malfunction
of the controller. Please contact IAI.
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