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4 Safety Function Blocks
NX-series Safety Control Unit Instructions Reference Manual (Z931)
4
SF
_Muting
P
a
r
Precautions for Correct Use
This FB does not detect short-circuits in muting sensor signals or errors in the function applica-
tions that supply those signals. It interprets them as illegal muting sequences. Unintentional
muting must not be allowed under these conditions. Give attention to this during risk assess-
ment.
DiscTime11_12
TIME
T#0s to T#4s
T#0s
A constant. It sets the maximum discrepancy time
between
MutingSwitch11
and
MutingSwitch12.
DiscTime21_22
TIME
T#0s to T#4s
T#0s
A constant. It sets the maximum discrepancy time
between
MutingSwitch21
and
MutingSwitch22.
MaxMutingTime
TIME
T#0s to T#10min
T#0s
A constant. It sets the maximum time until completion of
the muting sequence. The timer starts when the muting
sensor first operates.
MutingEnable
BOOL
TRUE or FALSE
FALSE
A constant or a variable. It is a command from the control
system to enable starting muting as required in the
machine cycle. You can change this signal to OFF after
muting starts.
FALSE: Disables muting.
TRUE: Enables starting muting.
S_StartReset
SAFEBOOL TRUE or FALSE
FALSE
Safety FB Common Input Variables
Reset
BOOL
TRUE or FALSE
FALSE
Safety FB Common Input Variables
*1.
You must connect a SAFEBOOL variable (not a BOOL variable) depending on safety requirements.
Output Variables
Variable
Data type
Valid range
Default
Description
Ready
BOOL
TRUE or FALSE
FALSE
Refer to
Safety FB Common Output Variables
4-4.
S_AOPD_Out
SAFEBOOL TRUE or FALSE
FALSE
This safety-related output gives the status of the protec-
tion devices that is being muted.
FALSE: Something has entered the AOPD protected
area and muting is disabled.
TRUE: Nothing has entered the AOPD protected area
and muting is enabled.
S_MutingActive
SAFEBOOL TRUE or FALSE
FALSE
Gives the muting status.
FALSE: Muting is disabled.
TRUE: Muting is enabled.
Error
BOOL
TRUE or FALSE
FALSE
Refer to
Safety FB Common Output Variables
4-4.
DiagCode
WORD
Depends on state
code.
16#0000
Refer to
Safety FB Common Output Variables
4-4.
Variable
Data type
Valid range
Default
Description
Summary of Contents for NX-SL series
Page 8: ...CONTENTS 6 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 28: ...Sections in this Manual 26 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 98: ...2 Standard Functions 2 64 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 104: ...2 Standard Functions 2 70 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 110: ...2 Standard Functions 2 76 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 265: ...I 1 I NX series Safety Control Unit Instructions Reference Manual Z931 Index ...
Page 268: ...I 4 NX series Safety Control Unit Instructions Reference Manual Z931 Index ...
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