19
UF 6925 / 30.08.17 en / 895
Application Examples
Safety function for units with cross fault detection (pay attention to "Unit Programming"!)
Safety function for units without cross fault detection (pay attention to "Unit Programming"!)
S22
S11
S12
M10768
emergency
stop
S21
S21
S22
S11
S12
Sliding door
is closed
M10778
Fct.: E-stop
SIL 3, PL e, Cat. 4
Fct.: Safety gate
SIL 3, PL e, Kat. 4
S22
S11
S12
M10772
emergency
stop
S21
S21
S22
S11
S12
Sliding door
is closed
M10770
Fct.: E-stop
SIL 3, PL e, Cat. 4
1)
Fkt.: Safety gate
SIL 3, PL e, Cat. 4
1)
1)
To achieve the safety classifications a crossfault safe wiring has to be installed.
A jumper must be fitted S33 - S34 for the automatic On function. The On pushbutton is not required. The required start function has to be selected on
switch S1 before starting the device. (see "Unit Programming").
Functioning of the external contactors is monitored by looping the NC contacts into the closing circuit (terminals S33 - S34).
DC24V
M11695
0V
A2
A1+
S21
S33
S34
S22
S11
S12
UF6925
13 23
14 24
on
K3
K4
K3 K4
33
34
safety function