Sensor Input Type
£
Pulse input used with a 2-wire sensor powered by its own power source – this in-
put supports a maximum input frequency of 1Hz (500ms minimum ON/OFF).
Connect the pulse input according to the figure for a pulse meter that can pull-
down a +5VDC supply with a 10KΩ pull-up resistor (Internal supply type).
£
Pulse input used with a 2-wire sensor powered by its own power source – this in-
put supports a maximum input frequency of 120Hz (4.137ms minimum ON/OFF).
Connect the pulse input according to the figure for a pulse meter that can pull-
down a +5VDC supply with a 10KΩ pull-up resistor (Internal supply type).
£
RTD input (for example, 1000Ω).
£
Thermistor Input (for example, 10kΩ type II and III).
£
Resistive input, maximum 350kΩ (for example, use with 10kΩ and 100kΩ poten-
tiometers).
£
0 to 20mA input used with a 2-wire, 0 to 20mA sensor powered by the controller's
internal 18VDC power supply.
£
See DIP Switch and Jumper Identification and Configuration on page 5 for more
information about how to set the DIP Switch.
£
0 to 20mA input used with a 2-wire, 0 to 20mA sensor powered by an external 24
AC/DC power supply.
£
See DIP Switch and Jumper Identification and Configuration on page 5 for more
information about how to set the DIP Switch.
£
0 to 20mA input used with a 3-wire, 0 to 20mA sensor powered by an external 24
AC/DC power supply.
£
See DIP Switch and Jumper Identification and Configuration on page 5 for more
information about how to set the DIP Switch.
£
0 to 20mA input used with a sensor powered by its own power source.
£
See DIP Switch and Jumper Identification and Configuration on page 5 for more
information about how to set the DIP Switch.
£
Voltage input used with a 3-wire 0 to 10VDC or 0 to 5VDC sensor powered by an
external 24 AC/DC power supply.
£
Voltage input used with a 0 to 10VDC or 0 to 5VDC sensor powered by its own
power source.
Table 1: ECY IO Module Input Wiring
Output Wiring
Output options must be properly configured in EC- gfx Program to ensure correct output values. The table below shows the ECY IO modules' output des-
ignation for each IO model. For terminal block connector wiring best practices, see
as follows.
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.
14 / 22
ECY IO
Input Connection Diagram
modules'
Input Des-
ignation
£
UIx
Pulse Meter
£
DIx
Output
£
UIx
Thermistor
£
UIx
£
UIx
Sensor
£
UIx
Sensor
£
UIx
Sensor
Common
24VAC
£
UIx
Sensor
£
UIx
0-10V
Common
Sensor
24VAC
£
UIx
0-10V
Sensor
General Wiring Recommendations
+5 VDC
Controller
Pulse Input
Equivalent
10 k
Circuit
UIx or DIx
+
-
To Pulse Count
COM
Accumulator
UIx or SIx
To Analog-To-
RTD/
Digital Converter
COM
UIx or SIx
To Analog-To-
Digital Converter
COM
Current Input
To Analog-
Option Enabled
To-Digital
+18VDC
Converter
Controller
+
UIx
249Ω
0-20mA
0-20mA Input
-
Equivalent
COM
Current Input
To Analog-To-
Option Enabled
Digital Converter
Controller
249Ω
UIx
0-20mA
0-20mA Input
-
Equivalent
+
COM
Circuit
24VDC
Current Input
To Analog-To-
Option Enabled
Digital Converter
Controller
249Ω
UIx
0-20mA
0-20mA Input
+
Equivalent
COM
Circuit
AC
Current Input
To Analog-To-
Option Enabled
Digital Converter
Controller
249Ω
UIx
0-20mA
0-20mA Input
+
Equivalent
-
COM
Circuit
UIx
+
To Analog-To-
COM
Digital Converter
AC
UIx
To Analog-
+
To-Digital
-
COM
Converter
[pg. 2]. Outputs can be connected
Circuit
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