IAI America SCON-CA - Manual (Page 261)

Chapter 9
Troubleshooting
251
Alarm
Code
Alarm
Level
Alarm Name Cause/Treatment
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.
0C2
Operation
release
Overrun sensor detected Cause : This indicates that a signal from the OT sensor
(option) installed at the mechanical end is detected.
1) The actuator was moved by hand or received
external force while the servo was OFF (normal
detection).
2) The actuator was jogged or operated by
pulse-train in a condition where the home
coordinates were not yet established and thus
the soft stroke limit did not function correctly
(normal detection).
3) The home position achieved by home return is
not correct, or in the case of an absolute type
controller the coordinates have shifted due to an
inappropriate absolute reset position.
4) There is a mismatch between the sensor
characteristics and the setting in Parameter
No.19 “Overrun sensor input polarity”, or the
wiring layout is wrong.
5) There is a mistake in the mating of the controller
and actuator, or the settings in Parameters No.3
and 4 “Soft limit value” and Parameter No.77
“Ball screw limit length” are not appropriate.
Treatment : If 1) or 2) is suspected, move the actuator in the
opposite direction by hand.
If this error occurred inside the effective stroke
range, 3), 4), or 5) is a likely cause.
If 3) is suspected, check the home position.
Conduct the absolute reset again if it is the absolute
type.
If 4) or 5) is suspected, please contact IAI.
0C4
Cold start
Exceeded allowable time
of exceeding torque
allowing continuous
pressing
Cause : The continuous pressing time exceeds the time set
for parameter No.89 “Allowable time of exceeding
torque allowing continuous pressing”.
Treatment : Check the sequence again.
Set the pressing time to be within the setting time.
0C5
Operation
release
Illegal transition command
in control system
Cause : 1) Change the operation from the vibration
suppress control operation to the normal position
control operation.
2) Change the operation from the normal position
control operation to the vibration suppress
control operation.
Treatment : Change the sequence so the next action is
conducted after confirming the positioning complete
signal (PEND) is turned ON for both cases 1) and
2).