Connecting Loads From Ox+ And Ox− To 0 V And 24 V; Figure 30: Connecting Loads From Ox+ And Ox- To 0 V And 24 V - WAGO -I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
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Open load detection on the digital outputs
To monitor line interruptions between the digital power outputs Ox+ or Ox− and
the connected load, you can set the line break detection parameter for each
digital power output separately.
Open load detection is not safety related and cannot be part of the safety
function under any circumstances.
7.3.3.5 Connecting Loads from Ox+ and Ox− to 0 V and 24 V
When installing the lines, protect against loads!
When a short circuit occurs between the digital power outputs Ox+ and Ox-,
the controlled load is no longer switched off.
Therefore, protect the lines against the loads during installation according to
EN 60204-1 or EN ISO 13849-2 (e.g., installed as separate shielded lines or in
separate cable ducts).

Figure 30: Connecting Loads from Ox+ and Ox- to 0 V and 24 V

You can switch ON two loads (e.g., two relays) two-channel with one digital
power output. Connect a load between the digital power output Ox+ and the
ground connection of the field supply voltage 0 V, and the second load between
the digital power output Ox- and the positive field voltage connection +24 V.
Please also observe the following conditions:
• You must connect the voltage supply +24 V and 0 V of the relay to the field
supply voltage U
necessary).
• You must connect the normally open contacts (K0 and K1, see figure) of
both relays in series to the load to be switched.
and 0 V of the F I/O module (same reference potential is
v
Version 1.4.2, valid from HW/SW Version 01/02
Connect Devices 75
Manual