Unitronics EX-D16A3-TO16 Installation Manual
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
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