Wiring & Connections; Power Supply Wiring; I/O Units - Advantech WISE-4220 Series User Manual

3.3 Wiring & Connections
This section introduces basic information on wiring the power supply and I/O units.
3.3.1

Power Supply Wiring

The system of WISE-4220 is designed for a standard industrial unregulated 24 V
power supply. For further application, it can also accept +10 to +50 V
input, 200mV peak to peak of power ripple, and the immediate ripple voltage should
be maintained between +10 and +50 V
power supply wiring.
3.3.2

I/O Units

The system uses a plug-in screw terminal block for the interface between I/O mod-
ules and field devices. The following information must be considered when connect-
ing electrical devices to I/O modules.
 The terminal block accepts wires from 0.5 mm to 2.5 mm.
 Always use a continuous length of wire. Do not combine wires.
 Use the shortest possible wire length.
Use wire trays for routing where possible.

Avoid running wires near high-energy wiring.

Avoid running input wiring in close proximity to output wiring.

 Avoid creating sharp bends in the wires.
WISE-4220 Series User Manual
. Screw terminals +Vs and -Vs are for
DC
Figure 3.10 Power Wiring
18
DC
of power
DC