Safety engineering
Operating mode
11
11.2

11.2−1
EDSVF9383V EN 7.1−04/2012
11.2 Operating mode
X11/34
X11/33
X11/K32
X11/K31
X5/28
5V
µC
PWM
PWM
-
~
U
V
W


DIGOUT
K
SR
9300vec100
Fig. 11.2−1 Internal connection of the "Safe torque off" function with 3 electrically isolated
circuits
Area : Pulse inhibit via safety relay K
SR
; forcibly guided feedback for
monitoring the safety relay
Area : Controller inhibit (X5/28), optional feedback via a digital output
(DIGOUT)
Area : Power output stage
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