Distech Controls ECB-203 Series - Output Wiring; Output Connection Diagrams

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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.
£ To measure the state of a triac output, an external load must be connected.
Table 3 shows the ECB-203, ECB-300, ECB-400, and ECB-600 Series controller Output and Jumper support. Table 4 shows the available output wiring
methods.
Controller Digital (Triac) Outputs Universal Outputs Jumper
0 to 10VDC/0 to 20mA
ECB‑203 5 3
ECB‑300 0 8
ECB‑4x0 Series 0 12
ECB‑4x3 Series 8 4
ECB‑600 Series 0 12
Table3: Controller Output Support
Control Output Type Output Designation Output Connection Diagram
£ Discrete 0 or 12VDC digital, Pulse, or PWM output controlling
a 12VDC relay. Maximum 60 mA (minimum load resistance
200Ω).
UOx
From
Digital
Output
12VDC Relay
A1
A2
UOx
COM
£ Current 0 to 20mA universal output & jumper configuration
£ For ECB-300, ECB-400, and ECB-600 Series only
£ For jumper location, see Jumper Identification and Configura-
tion.
UOx
0-20mA
Common
From Digital-To-
Analog Output
UOx
COM
JUMPER
SETTING
0-10V
0-20mA
£ Linear 0 to 10VDC digital to analog output.
UOx
0-10V
Common
From Digital-
To-Analog
Output
UOx
COM
£ 0 to 10VDC voltage output controlling an analog actuator that
is powered by an external 24VAC power source.
UOx
0-10V
~ or +
From Digital-
To-Analog
Output
UOx
COM
Actuator
or -
24VAC
£ 24VAC externally-powered triac output controlling a floating
actuator
1
.
£ Ensure that the external power supply is grounded as shown.
DOx
Actuator
~
~
24VAC
DOy
Cx
DOx
Cy
£ 24VAC
controller
-powered triac output controlling a relay
1
with
line and neutral switching.
£ Ensure that the transformer’s secondary winding is grounded
as shown.
DOx
DOx
Cx
24VAC Relay
A2
A1
Transformer
24VAC
24VCOM
AC
Electrical
System Ground
Fuse: 4A Max.
Fast Acting
Controller
24VAC
Load
DOx
Cx
24VAC Relay
A2
A1
Transformer
24VAC
24VCOM
AC
Electrical
System Ground
Fuse: 4A Max.
Fast Acting
Controller
24VAC
Load
Line Switching Neutral Switching