Unitronics
1
EX-D16A3-TO16
XL I/O Expansion Module (Built-in Adapter)
Installation Guide
The Unitronics® EX-D16A3-TO16 is an XL I/O expansion module for use in conjunction with specific Unitronics controllers.
XL modules comprise enhanced I/O configurations and detachable I/O connectors . In addition, this module comprises a builtin adapter for communicating with the PLC and providing power to the other expansion modules in the system.
This module provides:
16 digital inputs, including 1 HSC
3 analog inputs
16 transistor outputs, including 1 HSO
For additional information and technical specifications, visit the Technical Library at 0Hwww.unitronicsplc.com
Component Identification
8
7
4
6
3
5
2
1
1
Power supply connector
2
Status indicators
3
Output connectors
4
Output power supply connection points
5
PLC expansion port (for communication with the PLC)
6
Input/output status indicators
7
Module-to-module connector port
8
Input connectors
Failure to comply with appropriate safety guidelines can
cause severe personal injury or damage to property.
Only qualified personnel should service and operate this
device.
When power is turned on, do not connect or disconnect
the device to avoid damaging the system.
Mounting the Module
Connecting Modules
To mount the module on a 35mm DIN-rail, snap it squarely
onto the DIN-rail, as shown below.
To connect a module to the adapter or expansion
module:
1. Push the module-to-module connector (1) into the port
(2) located on the right side of the module or adapter.
2. Push the protective cap (3) into the connector port of
the last module. The cap is supplied with the adapter.
1
2
3
65mm (2.56")
1
3
5
m
m
(
5
.
3
1
"
)
80mm (3.15")
1
5
4
m
m
(
6
.
0
6
"
)
6
0
m
m
(
2
.
3
6
"
)
4
.
0
m
m
(
0
.
1
6
"
)
Unitronics
EX-D16A3-TO16
2
Install the module in an upright position.
To ensure good ventilation, leave at least 50mm between the
device and all other objects above or below it.
Install at a maximum distance from high-voltage cables and
power equipment.
Connecting the Module to the PLC
Use the com m unication cable to connect the m odule’s PLC expans ion port to the PLC.
Take care to connect the correct cable. The connectors of this cable are housed in yellow insulation. Note that one end is
marked To PLC and the other To Adapter; insert accordingly.
The module is supplied with a 1-meter cable, part number EXL-CAB100. Other cable lengths are also available.
Use only an original Unitronics cable and do not make any changes to it.
PLC Controller
Earth
Ground
I/O
Expansion
Port
To PLC
EXL
–
CAB
100
TO PLC
EXL–CAB100
TO
ADAPTER
To Adapter
Wiring Considerations
Use crimp terminals for wiring and use 26-12 AWG wire
(0.13mm2–3.31mm2).
Strip the wire to a length of 7±0.5mm (0.250–0.300”).
Do not route input cables together with output cables
through the same multi-core cable or wire.
Use wire that is correctly sized for the load. Allow for
voltage drop and noise interference with extended input
lines.
Note: Connect the adapter 0V and the I/O 0V to the same
line
Install an external circuit breaker. Guard against
short-circuiting in external wiring.
Do not connect unused pins. Ignoring this directive
may damage the device.
To avoid damaging wires, do not exceed a maximum
torque of 0.5 Nm (5 kgf·cm).
Do not use tin, solder, or any substance on stripped
wire that might cause the wire strand to break.
Daisy Chaining
To facilitate wiring, you can wire the following pins in series (daisy chain). Use both pins provided for this purpose.
Input connector pin: n/p. Output connector pins: +V, 0V. Power connector pins : +V, 0V.
Ensure that the total current drain on any single line does not exceed 10A. If a specific pin requires more than 10A, connect it
with a separate wire. The following diagram demonstrates the wiring options:
+V
0V
+V
0V
+V +V 0V 0V
+V +V 0V 0V
+V +V 0V 0V
Individual ConnectionDaisy-chained Connection
Wiring the Power Supply
Always connect the functional earth pin to the earth ground. Use a dedicated wire for this purpose; it must not exceed 1
meter.
A non-isolated power supply can be used provided that the 0V signal is connected to the earth ground.
Do not connect the neutral or line signal of the 110/220VAC to the device’s 0V pin.
In the event of voltage fluctuations or non-conformity to voltage power supply specifications, connect the device to a
regulated power supply.
0V
+V
Circuit
Protection
Device
Unitronics
EX-D16A3-TO16
3
Wiring Inputs
The following diagram shows the input connectors with pin numbers and corresponding input numbers
14131211109
8
765
4
3
2
1
n/pRGn/p3938373635343332
RG
15 16 17 18 19 20 21 22 23 24 25 26 27 28
AI1
AI0AI2
46454443424140 47
Wiring Digital Inputs
Inputs may be wired as either pnp (positive logic) or npn (negative logic).
Input 36 can function as a high-speed counter, frequency measurer, or general purpose digital input (set in software).
Input 37 can function either as a counter reset input or general purpose digital input (set in software).
For correct operation of the digital inputs, connect the n/p pin according to the following figures.
For information on connecting RG pins, refer to Connecting RG Pins.
pnp (positive logic) inputs 32-39
pnp (positive logic) inputs 40-47
14131211109
8
765
4
3
2
1
15 16 17 18 19 20 21 22 23 24 25 26 27 28
0V
+V
RG
*
‡
*
HSC Input
‡
Counter Reset
n/p
RG
I32
I33
I34
I35
I36
I37
I38
I39
14131211109
8
765
4
3
2
1
15 16 17 18 19 20 21 22 23 24 25 26 27 28
0V
+V
RG
n/p
RG
*
HSC Input
‡
Counter Reset
I40
I41
I42
I43
I44
I45
I46
I47
npn (negative logic) inputs 32-39
npn (negative logic) inputs 40-47
14131211109
8
765
4
3
2
1
15 16 17 18 19 20 21 22 23 24 25 26 27 28
0V
+V
RG
n/p
RG
*
HSC Input
‡
Counter Reset
*
‡
I32
I33
I34
I35
I36
I37
I38
I39
*
HSC Input
14131211109
8
765
4
3
2
1
15 16 17 18 19 20 21 22 23 24 25 26 27 28
0V
+V
RG
n/p
RG
‡
Counter Reset
I40
I41
I42
I43
I44
I45
I46
I47
Wiring Analog Inputs
The following diagram shows the 2-wire and 4-wire current connection.
Use shielded twisted pair cable.
Connect shields to the earth ground at the signal’s s ource.
14131211109
8
765
4
3
2
1
15 16 17 18 19 20 21 22 23 24 25 26 27 28
0V+V
Expansion
Adapter
+V
0V
Circuit Protection Device
Power
Supply
+
-
RG
AI0
Power
-
+
-
+
Power Supply
AI2
Unitronics
EX-D16A3-TO16
4
Wiring Outputs
The following diagram shows the output connectors with pin numbers and corresponding output numbers.
+V +V 0V 0V
14 13 12 11 10 9 8 7 6 5 4 3 2 1
28 27 26 25 24
23 22 21 20 19 18 17 16 15
32 33 34 35 36 37 38 39
40 41 42 43 44 45 46 47
npn
pnp
32
Wiring the Output Power Supply
A non-isolated power supply can be used provided that the 0V signal is connected to the earth ground.
Do not connect the neutral or line signal of the 110/220VAC to the device’s 0V pin.
In the event of voltage fluctuations or non-conformity to voltage power supply specifications, connect the device to a
regulated power supply.
The adapter 0V and the I/O 0V must be connect to the same line, Ignoring this may damage the device.
Wiring Transistor Outputs
Output 32 can be wired either as pnp (source) or npn (sink). pnp and npn can be used simultaneously.
Output 32 can be used as a high speed output.
pnp (source) outputs 32-39
pnp (source) outputs 40-47
28 27 26 25 24
23 22 21 20 19 18 17 16 15
0V
+V
Output Power Supply
14 13 12 11 10 9 8 7 6 5 4 3 2 1
O32
O33
O34
O35
O36
O37
O38
O39
Circuit
Protection
Device
Load
+V
0V
28 27 26 25 24
23 22 21 20 19 18 17 16 15
0V
+V
Output Power Supply
14 13 12 11 10 9 8 7 6 5 4 3 2 1
O40
O41
O42
O43
O44
O45
O46
O47
Circuit
Protection
Device
Load
+V
0V
npn (sink) output
28 27 26 25 24
23 22 21 20 19 18 17 16 15
14 13 12 11 10 9 8 7 6 5 4 3 2 1
0V
+V
Output Power Supply
Circuit
Protection
Device
O0
Circuit Protection
Device
Load
0V
+V0
+V
0V
The info rmation in th is document reflects products at the dat e of printing. Unitronics reserves the right, sub ject to all ap plicable laws, at any time, at its sole discretion, an d without notice, to d iscontinue or change the fe atures, de signs,
materials and o ther specifications of its pro ducts, and to either pe rmane ntly or te mpo rarily withdraw an y of th e forgoing from the market. All info rmation in t his do cument is provided "as is" without w arranty of an y kind, e ithe r expressed
or implied, including b ut not limited to any implied warranties of merchan tability, fitne ss for a particular p urpose, or n on-infringe ment . Unitronics assumes no respon sibility for e rrors or omissions in th e information p resen ted in
this document . In no event shall Un itronics be liable fo r an y special, incidenta l, indirect or con sequ ential damage s of any kind, o r any damage s wh atsoever ari sing ou t of or in con nection with t he use o r p erformance of this information.
The t rad enames, trade marks, logos an d service marks presen ted in th is documen t, including their design, a re t he prope rty of Unitronics (1989 ) (R"G) Ltd . or othe r th ird pa rties and you are n ot per mitted to use t hem without t he prior
written con sent of U nitronics or such t hird p arty as may own th em.
DOC04000-A2 11-16
Wiring the Power Supply
Connecting RG Pins
For correct operation of digital and analog inputs and for EMI immunity, connect the RG pin of all the expansion modules
containing RG signals to the adapter module 0V signal.
The overall length of the wire connecting the RG pins to the adapter 0V signal must be less than 3 meters.
Connect the RG pins in series (daisy chain). To facilitate this, use both the RG pins.
I/O Expansion Modules
0V
RG RG RG
0 1 5432 6
Expansion Module
(Built-in adapter)
7
RG
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