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12. Alarm Detection
The details of the alarm can be checked using a PC (the controller setting software) or the teaching box.
* Please refer to the manuals of the controller setting software or the teaching box for how to check the
details of the alarms.
Please refer to section “12.2 Alarm details (page 49)” of this manual on how to, deactivate the alarm.
There are two types of alarms: the ones that can be deactivated by the RESET input via the parallel
communication and the other that can be deactivated by cycling the controller power supply (C24V).
12.1 Parallel output for the alarm group
In case of an alarm, this controller outputs a signal that informs the type of alarm.
The type of alarm is classified into 5 groups and output from OUT0 to OUT3.
The status of output terminal for each alarm group is as follows:
When the alarm has activated, the status of output terminal will be as follows:
Parallel output
Alarm group
*ALARM OUT0 OUT1 OUT2 OUT3
Alarm group A
OFF ON OFF OFF OFF
Alarm group B
OFF OFF ON OFF OFF
Alarm group C
OFF OFF OFF ON OFF
Alarm group D
OFF OFF OFF OFF ON
Alarm group E
OFF OFF OFF OFF OFF
Parallel output
Alarm group
SVRE SETON
Procedure of restart
Alarm group A
There is no change. There is no change.
RESET input
Alarm group B
There is no change. There is no change.
RESET input
Alarm group C
There is no change. There is no change.
RESET input
Alarm group D
OFF There is no change(*1)
RESET input(* 1)
Alarm group E
OFF OFF
Power off ⇒Turn on the power again
* The “ALARM” is expressed as negative-logic circuit.
(*1) But if controller version is below SV1.00, SETON turns OFF and it is necessary to input
SETUP (step 2).
<Procedure to restart>
1. Input RESET SVRE: automatically turned on (if SVON is ON when RESET is input)
2. Input SETUP Instruction to restart after return to origin is completed
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