
10.SAMPLE SYSTEM CONFIGURATION B-64004EN/02
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10.2.2 Guard Open Request Signal (ORQ)
X00n#n
I/O-Link I/O UNIT
+24V
Guard open
request button
PMC
Ladder program
ORQ
NOTE
Create a Ladder program of conditions for making a guard open
request and then input the program to the PMC side.
When the guard open request signal (ORQ) is input, CNC will output
the *OPNIHB signal. After the ladder program confirms the safety
status, the signal for the guard unlock enable signal should be
outputted by the ladder program. Also, the ladder program should
inform the status of guard open by the *VLDVx and *VLDPs signals.
If the input of ORQ is canceled while the guard is open, the ladder
program should enter a safely stopped status (state in which the guard
is open although the guard open request signal is not input). Close
the guard (*VLDVx and *VLDPs are set to 1), then cancel this signal.
10.2.3 Test Mode Signal (OPT)
X00n#n
I/O-Link I/O UNIT
+24V
Test start button
PMC
Ladder program
OPT
NOTE
When all the conditions for the MCC off test become ready, this
signal (OPT) should be set to “1”.