Weidmuller DPAPOT - Universal glavanically isolated signal co Manual do Utilizador descarregar pdf (Página 17)

Alarm connections

The DPA has a high inbuilt immunity to noise spikes caused by

switching inductive loads like solenoids or relay coils. However, it

is important to use suppression capacitors across inductive loads

to preserve the relay contacts and to reduce the effect of switching

spikes on nearby circuits.

The alarm outputs are dual SPDT relay contacts with built in

suppression capacitors fitted across the normally open and common

contacts.

Cable preparation and installation

For effective protection from electromagnetic noise, all signal cables

must be shielded, or located on conductive trays or in conduits.

Use 12-28 AWG Cu Wire rated for temperatures above 70 °C Only,

tighten to 4.5 lb-In. Strip wires to 7 mm from the ends. Use a suitable

ferrule for multistranded wires (do not solder).

DPA/POT

32 4

Min Max

Input connection diagram for position inputs.

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 23 24

Sem comentários

Weidmuller DPAPOT - Universal glavanically isolated signal co Manual do Utilizador Página 17