Omron NX-SL series User Manual

4 - 93
4 Safety Function Blocks
NX-series Safety Control Unit Instructions Reference Manual (Z931)
4
SF_MutingSeq
• The input parameters to the FB include four muting sensor signals (MutingSwitch11 to
MutingSwitch22) and an OSSD signal from a photoelectric protection device (S_AOPD_In).
• Activate the S_StartReset input only when you can ensure that no hazardous state will occur as the
result of starting the Safety CPU Unit.
 SF_MutingSeq Instruction Application Example for Forward Entry with Four
Sensors
Order Diagram Description
1 Muting mode is enabled when the passage of
a workpiece turns ON MutingSwitch11
(MS_11) and then MutingSwitch12 (MS_12).
2 Muting mode is enabled as long as
MutingSwitch11 (MS_11) and
MutingSwitch12 (MS_12) remain ON due to
the workpiece. This allows the workpiece to
pass through the light curtain without stop-
ping the machine.
3 MutingSwitch21 (MS_21) and
MutingSwitch22 (MS_22) must turn ON
before MutingSwitch11 (MS_11) and
MutingSwitch12 (MS_12) turn OFF. This
ensures that muting mode remains ON.
4 Muting mode is ended if only MutingSwitch22
(MS_22) is ON due to the workpiece.
MS_12 MS_11 MS_22 MS_21 Receiver
Transmitter
Danger
zone
MS_12 MS_11 MS_22 MS_21 Receiver
Transmitter
Danger
zone
MS_12 MS_11 MS_22 MS_21 Receiver
Transmitter
Danger
zone
MS_12 MS_11 MS_22 MS_21 Receiver
Transmitter
Danger
zone

Omron NX-SL series Specifications

General

Brand	Omron
Model	NX-SL series
Category	Control Unit
Language	English