Controlling High Power Devices; Using Webrelay-Quad™ Without A Computer - ControlByWeb WebRelay-Quad X-WR-4R1-5 User Manual

Revision 2.6

1.4.2 Controlling High Power Devices

WebRelay-Quad™ can be used to control high power devices by using an external relay. In this
configuration, WebRelay-Quad™ does not control the load directly, but controls the external relay
and the external relay controls the load. This is illustrated below.
C o m p u t e r , P L C , I n d u s t r i a l C o n t r o l l e r , e t c .
1.4.3 Using WebRelay-Quad™ Without a Computer
WebRelay-Quad™ can be used in conjunction with other ControlByWeb products such as
WebRelay™ or the Five- Input Module. This allows users to control devices at a remote location
by using switches or buttons instead of using a computer. The illustration below shows how three
switches can remotely control three indicator lights in a light tower at a remote location. This
configuration offers many possibilities in security and remote control. The inputs can be driven by
switches, sensors, or digital outputs from a PLC or automation controller.
S w i t c h e s
L i g h t 1
L i g h t 2
L i g h t 3
Xytronix Research & Design, Inc.
P o w e r S u p p l y
( P o w e r s W e b R e l a y )
( 5 V D C o r 9 - 2 8 V D C )
I P
N e t w o r k
P o w e r S u p p l y f o r
F i v e I n p u t M o d u l e
F i v e I n p u t M o d u l e
+ 5
G n d
I n 1 -
I n 2 -
I n 2 +
I n 3 -
I n 3 +
N e t w o r k
WebRelay-Quad™ Users Manual
N e u t r a l
2 4 0 V
A C P o w e r
S o u r c e
L i n e
W e b R e l a y - Q u a d
1 C
1 N O
P o w e r S u p p l y f o r W e b R e l a y -
Q u a d
W e b R e l a y - Q u a d
V i n +
V i n -
1 N O
2 N O
I P
P o w e r S u p p l y
f o r L i g h t T o w e r
D e v i c e t o b e
C o n t r o l l e d
2 5 A m p
S o l i d S t a t e R e l a y
L i g h t T o w e r
+ V
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