Manual

148
10. Troubleshooting
10.2 Alarm Level Classification
Alarms are classified into two levels based on the corresponding symptoms.
Alarm level ALM lamp *ALM signal
What happens when alarm
generates
How to reset
Operation
cancellation
Lit
Output
The actuator decelerates
to a stop and then the
servo turns OFF.
Input an alarm reset signal
(RES) from the PLC.
Reset by the PC/teaching
pendant.
Cold start
Lit
Output
The actuator decelerates
to a stop and then the
servo turns OFF.
Reconnect the power.
(Note) The *ALM output signal is a contact-b signal.
After the power is turned on, this signal will remain ON while the controller is normal, and turn OFF if
an alarm occurs.
Although the *ALM signal will turn OFF when the power is cut off, it cannot be used as a contact-b
interlock.
 How to reset operation-cancellation level alarms
Input an alarm reset signal (RES) continuously for 6 msec or more.
This resets the *ALM signal to ON, so turn OFF the RES signal after confirming that the *ALM signal is ON.
Caution: Reset each alarm after identifying and removing the cause of the alarm. If the cause of
the alarm cannot be removed or the alarm still persists after the cause has been removed,
contact IAI.
If the same error occurs again after resetting the alarm, it means that the cause of the
alarm still remains.
A
larm reset input signal (RES)
A
larm output signal (*ALM)
A
larm present
6 msec or more
No alarm