
Hardware Installation IP 240
4.3.2 Outputs
Fig. 4-8. Connecting the Load to the Digital Outputs on the IP 240
+
+
+
or
Vp
+
Vp
Vp
Vp
X3/X5
Vs=Supply voltage
((1887/3))
Note
All digital outputs are isolated from each other and from the module ground.
Warning
Because of internal protective diodes, if the cables to D+ and D - are connected
the wrong way round, the outputs are bypassed. Any supply voltage is then
switched directly to the load.
In order to avoid noise voltages, relays and contactors have to be connected with
arc suppression devices.
4-12
EWA 4NEB 811 6120-02a
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