9. Troubleshooting
Fieldbus Communication
241
RCP6
* In the alarm code list, description of P6PC shows RCM-P6PC, P6AC shows RCM-P6AC and P6DC shows RCM-P6DC.
Alarm
Code
Alarm
Level
Alarm Name Cause/Treatment
0B8
For
RCP6S
and
P6PC
only
Cold start
Excitement detection
error
Cause : In this controller, the excitation detection starts
when the servo is turned ON for the first time after
the power is supplied. The detection is not finished
after a certain time (set to Parameter No.29) being
passed.
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) Power was turned on while touching to the
mechanical end.
5) The resistance in the actuator sliding operation
is large.
6) Parameter No.22 Home Return Offset was set
smaller than the initial value.
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) Move the slider or the rod to a point where it
would not hit the mechanical end and reboot the
system.
5) 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.
6) If the Parameter No.22 Home Return Offset is
set smaller than the initial setting, the actuator
interferes with the mechanical end and excitation
detection cannot be performed properly.
0BA Home sensor
non-detection
Cause : This indicates that the home-return operation of the
actuator equipped with origin sensor (option for
those except for rotary actuator) is not completed in
normal condition.
1) The work piece has interfered with the
peripherals during the home-return operation.
2) The resistance in the actuator sliding operation
is large.
3) Attachment error, malfunction or wire breakage
of origin sensor.
Treatment : If there is no interference of the work piece
confirmed with the peripherals, 2) or 3) can be
considered as a cause. Please contact IAI.
0BE
Operation
release
Home return timeout Cause : Home return does not complete after elapse of a
certain period after the start of home return.
Detailed Code Applicable Action
01 Home Return Action Timeout
02 LS Evacuating Action Timeout
Treatment : This error does not occur in normal operation. The
combination of the controller and actuator may be
incorrect. Please contact IAI.
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