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Connecting outputs
53
02/16 MN05013001Z EN
Connecting transistor outputs
For ES4P-221-DMX.. devices with device version 20 or
higher, it is not necessary to use free-wheel diode suppres-
sors.
Figure 18:
Transistor outputs ES4P-22.-DM..
1) Use free-wheel diode suppressors for
ES4P-221-DMX.. devices with
device version 02 and 10
i
For ES4P-221-DMX.. devices with device version 02 or 10,
make sure to connect inductive loads (such as contactors
and valves) with free-wheel diode suppressors.
Otherwise, the output driver may fail. The device will
detect the fault and will shut down safely, but will be
permanently damaged.
0 V
QS1
QS2 QS3
QS4
I
1
I
2
I
3
I
4
Q
24 V
Q
F2
0 V ⎓
24 V ⎓
1)
1)
1)
(20.4 – 28.8 V
H
)
+ 24 V
H
R
L
5 W/24 V
0.5 A
24 V
H
0.5 A
i
Danger!
The parallel connection of the safety transistor outputs
QS1 to QS4 of a easySafety basic unit is not permissible
and causes a fault message (fault category B,
page 622). The outputs are switched off as result.
Содержание easySafety
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