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Input Wiring
Input options must be properly configured in EC-
gfx
Program to ensure correct input readings. For terminal block connector wiring best practices, see
General Wiring Recommendations. Inputs can be connected as follows.
Before connecting a sensor to the controller, refer to the installation guide of the equipment manufacturer.
£ For a wire length less than 10’ (3m), either a shielded or unshielded 18AWG wire may be used.
£ For a wire up to 33’ (10m) long, a shielded 18AWG wire is recommended.
£ The shield of the wire should be grounded on the controller side only and the shield connection to the
ground should be kept as short as possible.
£ If functional Earth is connected, input circuits will be PELV.
£ If functional Earth is NOT connected, input circuits will be SELV.
Sensor Input Type Input Designa-
tion
Input Connection Diagram
£ Dry Contact input.
£ Pulsed input.
£ UIx
£ DIx
£ SIx
UIx, DIx or SIx
COM
To Digital Input
Digital Dry Contact
NO-NC
£ Pulse input used with a 2-wire sensor powered by its own power source.
£ This input supports a maximum input frequency of 100Hz (5ms minimum
ON/OFF) for DIx, or 1Hz (500ms minimum ON/OFF) for UIx and SIx.
£ Connect the pulse input according to the figure for a pulse meter that can
pull-down a +3.3VDC supply with a 1kΩ (for DIx) or 10kΩ (for UIx and SIx)
pull-up resistor (Internal supply type).
£ DIx
£ UIx
£ SIx
Pulse Meter
Output
C
ontroller
P
ulse
Inpu
t
E
quivalent
Circuit
UIx or DIx
COM
To Pulse Count
Accumulator
+
-
10 kവ
+5 VDC
£ Thermistor Input (for example, 10kΩ type II and III). £ UIx
£ SIx
UIx or SIx
COM
To Analog-To-
Digital Converter
RTD/
Thermistor
£ Resistive input, maximum 350kΩ (for example, use with 10kΩ and 100kΩ
potentiometers).
£ UIx
£ SIx
UIx or SIx
COM
To Analog-To-
Digital Converter
3RWHQWLRPHWHU
Nവ
£ Voltage input used with a 3-wire 0 to 10VDC or 0 to 5VDC sensor powered
by an external 24 AC/DC power supply.
£ UIx
AC
+
Common
0-10V
Sensor
UIx
COM
To Analog-To-
Digital Converter
24VAC
£ Voltage input used with a 0 to 10VDC or 0 to 5VDC sensor powered by its
own power source.
£ UIx
+
-
0-10V
Sensor
UIx
COM
To Analog-
To-Digital
Converter
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