IAI America SCON-CA - Manual (Page 262)

Chapter 9
Troubleshooting
252
Alarm
Code
Alarm
Level
Alarm Name Cause/Treatment
0C6 Torque current
• Mismatching force feed
back
Cause : The feedback from the loadcell has continuously
been larger than the rating motor output for 256 ms
or longer.
Treatment : 1) Check that there is no external force applied in
the direction to push back from the load side.
2) Review wiring of actuator and loadcell cables.
3) The actuator, controller or loadcell may be faulty.
Please contact IAI.
0C8 Overcurrent Cause : The output current in the power circuit section is
increased abnormally.
Treatment : This alarm will not be generated in normal
operation. If it occurs, insulation of the motor coil
may have deteriorated.
Check if there is deterioration in the insulation by
measuring the phase resistance between the
monitor connection lines U, V and W. The values for
the phase resistance should be almost the same.
There is a concern the insulation is deteriorated if
the values are different in large amount. Please
contact IAI.
0CA Overheat Cause : This indicates overheat (95�C or more) of the
components inside the controller.
1) Operation is performed with the load condition
exceeding the specified range.
2) High temperature around the controller.
3) Load to the motor is high due to external force.
4) A faulty part inside the controller.
Treatment : 1) Revise the operation condition such as
decreasing the acceleration/deceleration speed.
2) Lower the ambient temperature of the controller.
3) Confirm that there is no error in the mechanical
part assembly condition.
(Note) This error would not normally occur. If it occurs, confirm
there is not (1) or (2) above. If the same error is issued
again even after confirming (1) or (2) is not in the
condition, it is considered to be a malfunction. Please
contact IAI.
0CB Current sensor offset
adjustment error
Cause : An error was found to the sensor in the status check
of the current detection sensor conducted at the
initializing process in the startup.
1) The current detection sensor or any of its
surrounding parts is faulty.
2) Inappropriate offset adjustment
Treatment : A work (PC board) change or offset adjustment is
required.
Please contact IAI.
0CD Emergency-stop relay Cause : A melt-down of the emergency stop relay inside the
controller.
Treatment : The relay or controller must be replaced.
Please contact IAI.
0CE
Cold start
Drop in control supply
voltage
Cause : 1) The AC power supply voltage is low.
2) Faulty part inside the controller
Treatment : Check the voltage of the input power supply.
In the case that the voltage is normal, please
contact IAI.