Continuum I/O System Reference
83
The DO-4-R, Continuum’s digital output module, has four Form C relay outputs, rated at
5 amps, 240 VAC. These versatile outputs make the DO-4-R an excellent choice for
switching motor starters and other inductive loads up to 240 VAC, with either two position
(on/off) or pulse-width modulation (PWM) control. The PWM feature permits the
modulation of valves and dampers to 0.1 second resolution. Two adjacent Form C relay
outputs can be combined in software to provide a Tri-state output, for bi-directional
control of valves and dampers and other end devices. Metal oxide varistors and 5000V
isolation on each output ensure reliable noise-free operation.
A DO-4-R-O model with full override capabilities is also available. Each output has a local
hand-off-auto switch, which enables service personnel to override the output. The switch
also provides override feedback of output values for use in troubleshooting or test
conditions. A local indicator light for each output displays relay status. Another LED
provides override status.
FEATURES
•
4 Form C Relay Outputs
•
240 VAC @ 5A Contact Rating
•
Output Status LEDs
DO-4-R-O Only:
•
Override Toggle Switches
•
Override Detection
USE COPPER CONDUCTORS ONLY
10 11 12
13 14 15
1-DOOR
OUT2
DIGITAL OUTPUTS
CONTACT RATING:
24VAC/DC, 5A
12
3
4
56
7
8
+
G
DC
A
T
A
/
1
L
K
/
0
N
D
V
L
E
D
A
U
X
O
O
R
R
E
X
READER
SUPERVISED
INPUTS(0-5V)
+ 5V, 100mA
+ 12V, 180mA
1-DOOR
ON
OFF
AUTO
OUT 2
ON
OFF
AUTO
D
9
R
E
T
1
23
READER
POWER
USE COPPER CONDUCTORS ONLY
OUT1
123456789101112
OUT2 OUT3
OUT4
DIGITAL OUTPUTS
CONTACT RATING: 240 VAC, 5A
30 VDC, 5A
OUT1
ON
OFF
AUTO
OUT2
ON
OFF
AUTO
OUT3
ON
OFF
AUTO
OUT4
ON
OFF
AUTO
WARNING:
AVERTISSEMENT:
CAUTION:
MORE THAN ONE DISCONNECT MAY BE
REQUIRED TO DE-ENERGIZE THIS EQUIPMENT.
HAUTE TENSION A L'INTERIEUR-DANGER
POUR LES PERSONNES NON-QUALIFIER.
HIGH VOLTAGE INSIDE-DANGEROUS TO
UNQUALIFIED PERSONS.
DO-4
COMMISSION
RESET
1
2
3
4
OUTPUT
POWER
COMM
STATUS
OVERRIDE
DO-4-R
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