W&T 57630, Manual

Page: 207 / 211

207
W&T
Wiring examples
Subject to errors and modifications:
7.6 Wiring examples for the outputs
Switching loads up to 500mA
Web-IO
IN-
PUTS
VCC
Attachment circuit for Web-IO outputs: Connecting a device with current consumption up to 500mA
ON: V
DD
OFF: 0 V
Current: load-dependent,
Depending on inductance,
measures for protection are
necessary (see below)
V
DD
= + 6...30 V
V
CC
= 12...24 V AC/DC
OUTPUT n
U
VDD +
U
VDD GND
The outputs which are grouped together for increased
switching load capacity must be connected together a s agroup
in the output configuration.
Switching loads through a relay
Attachment circuit for Web-IO outputs with relays for potential-free contact
VCC
Control voltage of relay = V
DD
Control current of relay:
Up to 500mA possible. Depending
on inductance, measures
for protection are necessary
(see below)
VDD +
any load
(only depending
on relay)
V
DD
= + 6...30 V
V
CC
= 12...24 V AC/DC
Web-IO
U
U
IN-
PUTS
VDD GND
OUTPUT n
A suitable method for an inductive load could be for example a
freewheeling diode. Thie diode should be dimesioned to take
over at least 100 times the current usually flowing through the
relais coil.