IAI America PCON-ABU - Manual (Page 53)

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6.2 Alarm Classification by Level
Alarms are classified into two levels according to the associated symptoms.
Alarm level ALM lamp *ALM signal
What happens when
the alarm occurs
How to reset
Operation
cancellation
Lit Output
The actuator
decelerates to a stop.
The servo turns off.
Input an alarm reset signal
(RES) from the PLC.
Perform a reset from the
PC/teaching pendant.
Cold start Lit Output
The actuator
decelerates to a stop.
The servo turns off.
Reconnect the power.
(Note) * The ALM output signal is a negative logic signal.
After the power is input, the signal remains ON in normal condition and will turn OFF when an
alarm occurs.
Although this signal will turn OFF when the power is cut off, it cannot be used as a contact-b
interlock signal.
„ How to reset alarms of operation-cancellation level
Input an alarm reset signal (RES) for at least 6 msec.
The *ALM signal turns ON. Turn the RES signal OFF after confirming that *ALM is ON.
Caution: Reset each alarm after identifying and removing the cause.
If the cause cannot be removed, or when the alarm cannot be reset after removing the cause,
contact IAI.
If the same error occurs again after resetting the alarm, it means that the cause of the alarm
has not been removed.
Alarm reset input signal (RES)
Alarm output signal (*ALM)
At least 6 msec
Alarm is present.
Alarm is reset.