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FS, safety foot switch
383
02/16 MN05013001Z EN
Function block
Figure 191:
Safety foot "switch function block"
a
Coils FS..I1 to FS..I4: monitoring of the 2-channel and 4-
channel foot switch.
Use only in the safety circuit diagram.
b
Coil FS..SA: safety activation of the function block.
Use only in the safety circuit diagram.
c
Coil FS..EN: Selective activation or deactivation of the function
block function (optional).
Use either in the safety or standard circuit diagram.
d
Parameter FS..ED: The enable time is the maximum time in
which the guard is allowed to be bridged. When the time has
been exceeded, the enable is removed and FS..QS is opened. If
the enable time is not activated, the enable contact FS..QS is
closed for as long as the FS..I1 to FS..I2 or FS..I1 to FS..I4 func-
tion block coils have picked up.
Can be used with foot switch as an adjustable constant.
e
Contact FS..QS: Closes when the foot switch is actuated
correctly and initiates the enable signal for special operation.
Use only in the safety circuit diagram.
I1
I2
SA
EN
>ED
QS
ER
DG:
QV:
FS...
Foot Switch
a
b
c
d
e
f
g
h
I3
I4
DW
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