19 XN-322-16DIO-PC05 digital input/output module
19.3 Wiring
128
XN300 slice modules
06/16 MN050002 EN
www.eaton.com
19.3.5 Connecting the EN 61131-2 short-circuit proof digital outputs
Four digital outputs can be wired to the X3 connector and another four digital
outputs can be wired to the X4 connector. These outputs are able to drive
twice their rated operational current briefly when driving loads with higher
inrush currents.
Large currents may be produced when inductive loads are switched off.
Because of this, digital outputs should be protected with a suppressor circuit.
Figure 74:
Example of a suppressor circuit
19.3.6 Wiring example
Figure 75:
Wiring example showing how to connect inputs to X1/X2 and outputs to X3/X4
NOTICE
When switching inductive loads, a snubber must be added at
the load in order to prevent EMI. RC snubbers have proven to
be particularly effective for this purpose as a result of their
dynamic response.
+ 24 V ⎓
0 V ⎓
Q
X3
X5
(X3/X4)
24V
0V
O1
O3
O2
O4
O5
O7
O6
O8
F1
R
L
R
L
R
L
R
L
X4
R
L
R
L
R
L
R
L
X1
I1 I2 I3 I4
I8
X2
I5 I6
I7
PE
24 V
0 V
Summary of Contents for XN300
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