Output Wiring - Distech Controls ECL-VAVS Installation Manual

£
0 to 20mA input used with a sensor powered by its own power source.
£
Voltage input used with a 3-wire 0 to 10VDC sensor powered by an external 24
AC/DC power supply. It is recommended to supply the external power supply with
the same 24VAC as the controller.
£
Voltage input used with a 0 to 10VDC sensor powered by its own power source.

Output Wiring

Before connecting an output device (actuator, relay, etc.) to the controller, refer to the datasheet and installation
guide of the equipment manufacturer.
£ For a wire length less than 75' (23m) long, either a shielded or unshielded 18AWG wire may be used.
£
For a wire length up to 200' (61m) long, a shielded 18AWG wire is recommended.
£
The shield of the wire should be grounded on the controller side and the shield length should be kept as short
as possible.
£ For relay outputs (DOx); select appropriately-sized wiring suitable to the current load.
£
All digital outputs (DOx) are internally powered by the controller's 24VAC power supply.
£
External power cannot be applied to any digital outputs (DOx)
£ Digital outputs (DOx) do not support 24VDC power input
£
COM outputs (UOx) are internally connected to 24V COM.
Control Output Type
£ Discrete 0 or 12VDC digital, Pulse, or PWM output controlling
a 12VDC relay
£
Linear 0 to 10VDC digital to analog output.
£ 0 to 10VDC voltage output controlling an analog actuator that
is powered by an external 24VAC power source.
£ 24VAC internally-powered triac output controlling a relay.
£
24VAC internally-powered triac output controlling a floating ac-
1
tuator .
£
1 to 10VDC voltage output controlling dimmable lighting bal-
lasts that require a current sink output (pull-down).
£
This output can sink up to 2.5mA.
1.
Maximum output current for all digital triac outputs is 0.5A continuous or 1A @ 15% duty cycle for a 10-minute period.
Sensor Input Type
0-10V
Sensor
Output Designation
UOx
UOx
From Digital-
To-Analog
Output
UOx
From Digital-
To-Analog
Output
DOx
DOx
UOx
From Digital-
To-Analog
Input Connection Diagram
165Ω 249Ω ¼W
UIx
0-20mA
+
Sensor
-
COM
UIx
+
Common
COM
24VAC
AC
UIx
0-10V
+
Sensor
-
COM
Output Connection Diagram
UOx
From
Digital
Output
COM
UOx
0-10V
Common
COM
Actuator
UOx
0-10V
~ or +
COM
24VAC
DOx
24VAC Out
DOx
24VAC Out
DOx
UOx
Output
COM
To Analog-
To-Digital
Converter
To Analog-
To-Digital
Converter
To Analog-
To-Digital
Converter
A1
A2
12VDC Relay
or -
A1
A2
24 VAC Relay
Actuator
~
~
Ballast
0-10V
Common
Line
VAC
Neutral
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