Klinkmann Unitronics IO-DI8-RO4 Guide

Unitronics Industrial Automation 1
IO-DI8-RO4, IO-DI8-RO4-L I/O Expansion Modules 8 Inputs, 4 Outputs
The IO-DI8-RO4 and IO-DI8-RO4-L are I/O
expansion modules that can be used in
conjunction with specific Unitronics OPLC
controllers.
The modules are identical except for their
voltage specifications: IO-DI8-RO4 runs at
24 VDC; IO-DI8-RO4-L at 12 VDC.
Both modules offer 8 digital inputs, type
pnp/npn (source/sink), and 4 relay outputs.
The interface between a module and the
OPLC is provided by an adapter.
These modules may either be snap-
mounted on a DIN rail, or screw-mounted
onto a mounting plate.
Component identification
1 Module-to-module connector
2 Communication status indicator
3 Outputs’ power supply
connection points
4 Output connection points
5 Input/Output status indicators
6 Module-to-module connector port
7 Input connection points
1 6
7
2
3
5
4
IO-DI8-RO4
Before using this product, it is the responsibility of the user to read and understand this document and
any accompanying documentation.
All examples and diagrams shown herein are intended to aid understanding, and do not guarantee
operation. Unitronics accepts no responsibility for actual use of this product based on these examples.
Please dispose of this product in accordance with local and national standards and regulations.
Only qualified service personnel should open this device or carry out repairs.
User safety and equipment protection guidelines
This document is intended to aid trained and competent personnel in the installation of this equipment as
defined by the European directives for machinery, low voltage, and EMC. Only a technician or engineer trained
in the local and national electrical standards should perform tasks associated with the device’s electrical wiring.
Symbol Meaning Description
Danger The identified danger causes physical
and property damage.
Warning The identified danger can cause
physical and property damage.
Symbols are used to highlight
information relating to the user’s
personal safety and equipment
protection throughout this document.
When these symbols appear, the
associated information must be read
carefully and understood fully. Caution Caution Use caution.
Failure to comply with appropriate safety guidelines can result in severe personal injury or
property damage. Always exercise proper caution when working with electrical equipment.

IO-DI8-RO4, IO-DI8-RO4-L I/O Expansion Modules 7/03
2 Unitronics Industrial Automation
Check the user program before running it.
Do not attempt to use this device with parameters that exceed permissible levels.
Install an external circuit breaker and take appropriate safety measures against short-circuiting
in external wiring.
To avoid damaging the system, do not connect / disconnect the device when the power is on.
Environmental Considerations
Do not install in areas with: excessive or conductive dust, corrosive or flammable gas,
moisture or rain, excessive heat, regular impact shocks or excessive vibration.
Leave a minimum of 10mm space for ventilation between the top and bottom edges of the
device and the enclosure walls.
Do not place in water or let water leak onto the unit.
Do not allow debris to fall inside the unit during installation.
Mounting the Module
DIN-rail mounting
Snap the device onto the DIN rail as shown below; the module will be squarely situated on the DIN rail.
60mm
(2.362")
3.5mm
(0.137")
14mm
(0.55")
80mm
(3.15")
93mm
(3.66")
44.5mm
(1.75")
Screw-Mounting
The figure on the next page is drawn to scale. It may be used as a guide for screw-mounting the module.
Mounting screw type: either M3 or NC6-32.

7/03 IO-DI8-RO4, IO-DI8-RO4-L I/O Expansion Modules
Unitronics Industrial Automation 3
4mm
5.8mm
(0.228")
85mm
(3.346")
80mm
(3.15")
68.4mm
(2.693")
93mm
(3.66")
4mm (x2)
(0.16")
(0.16")

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4 Unitronics Industrial Automation
Connecting Expansion Modules
An adapter provides the interface between the OPLC and an expansion module. To connect the I/O module to
the adapter or to another module:
1. Push the module-to-module connector into the port located on the right side of the device.
Note that there is a protective cap provided with the adapter. This cap covers the port of the final
I/O module in the system.
To avoid damaging the system, do not connect or disconnect the device when the
power is on.
Component identification
1 Module-to-module connector
2 Protective cap
1 2
Wiring
Do not touch live wires.
Unused pins should not be connected. Ignoring this directive may damage the device.
Do not connect the ‘Neutral or ‘Line’ signal of the 110/220VAC to the device’s 0V pin.
Double-check all wiring before turning on the power supply.
Wiring Procedures
Use crimp terminals for wiring; use 26-12 AWG wire (0.13 mm 2–3.31 mm2) for all wiring purposes.
1. Strip the wire to a length of 7±0.5mm (0.250–0.300 inches).
2. Unscrew the terminal to its widest position before inserting a wire.
3. Insert the wire completely into the terminal to ensure that a proper connection can be made.
4. Tighten enough to keep the wire from pulling free.
To avoid damaging the wire, do not exceed a maximum torque of 0.5 N·m (5 kgf·m).
Do not use tin, solder, or any other substance on stripped wire that might cause the wire strand to break.
Install at maximum distance from high-voltage cables and power equipment.
I/O Wiring—General
Input or output cables should not be run through the same multi-core cable or share the same wire.
Allow for voltage drop and noise interference with input/output lines used over an extended distance.
Use wire that is properly sized for the load.
The adapter, input signals, and outputs' power supply must be connected to the same 0V signal.

7/03 IO-DI8-RO4, IO-DI8-RO4-L I/O Expansion Modules
Unitronics Industrial Automation 5
Digital I/Os
Inputs may be wired as either pnp (source) or npn (sink) inputs.
npn (sink) inputs pnp (source) inputs
0V
+V
Circuit Protection Device
0V
+V
npn (sink)
high-speed counter/frequency measurer
pnp (source )
high-speed counter/frequency measurer
0V
+V
Circuit Protection Device
High-speed
Counter
Reset
High-speed
Counter
0V
+V
High-speed
Counter
Reset
High-speed
Counter
Wiring the Output’s Power Supply Outputs
Wiring DC supply
1. Connect the "positive" cable to the "+V0"
terminal, and the “negative” to the "0V"
terminal.
A non-isolated power supply can be used
provided that a 0V signal is connected to
the chassis.
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.
Circuit Protection
Device
Load
L1, L2, L3 (115/230VAC)
+V (12/24VDC)
0V
N
0V
NN
0V
N
0V
Output's
power supply
0V
+V0

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6 Unitronics Industrial Automation
Increasing Contact Life Span
Both modules have 4 relay outputs. To increase the
life span of these contacts and protect the module
from potential damage by reverse
EMF, connect:
a clamping diode in parallel with each
inductive DC load,
an RC snubber circuit in parallel with each
inductive AC load.
0V
L1, L2, L3
(115/230VAC)
+V
(12/24VDC)
N
R
C
IO-DI8-RO4, IO-DI8-RO4-L Technical Specifications
Max. current consumption 60mA maximum from the adapter’s 5VDC
Typical power consumption 0.15W @ 5VDC
Status indicator
(RUN) Green LED:
—Lit when a communication link is established between module and OPLC.
—Blinks when the communication link fails.
Inputs
Number of inputs 8 (in one group)
Input type pnp (source) or npn (sink)
Galvanic isolation None
Status indicators
(IN) Green LEDs—Lit when the corresponding input is active. See Note 1.
Nominal input voltage 24VDC for IO-DI8-RO4, 12VDC for IO-DI8-RO4-L
Input voltage IO-DI8-RO4 IO-DI8-RO4-L
pnp (source) 0-5VDC for Logic ‘0’
17-28.8VDC for Logic ‘1’
0-3VDC for Logic ‘0’
8-15.6V for Logic ‘1’
npn (sink), voltage/current 17-28.8VDC/<1.1 mA for Logic ‘0’
0-5VDC/>4.3mA for Logic ‘1’
8-15.6VDC/<1.1 mA for Logic ‘0’
0-3VDC/>4.3mA for Logic ‘1’
Input current 6mA@24VDC 6mA@12VDC
Response time 10mSec typical
Input #7 The specifications below apply when this input is wired for use as a high-speed
counter input/frequency measurer. See Notes 2 and 3.
Resolution 16-bit
Frequency 5kHz maximum
Minimum pulse width 80µs

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Unitronics Industrial Automation 7
Outputs
Number of outputs 4 relay
Output type SPST-NO relay; 230VAC / 24VDC
Type of relay
IO-DI8-RO4 Takamisawa JY-24H-K or NAIS (Matsushita) JQ1AP-24V
or OMRON G6B-1114P-24VDC
IO-DI8-RO4-L Takamisawa JY-12H-K or NAIS (Matsushita) JQ1AP-12V
or OMRON G6B-1114P-12VDC
Isolation By relay
Status Indicators
(OUT) Red LEDs—Lit when the corresponding output is active.
Output current 5A maximum (resistive load)
1A maximum (inductive load)
Maximum frequency 10Hz
Contact protection External precautions required (see above: Increasing Contact Life Span)
Outputs’ power supply IO-DI8-RO4 IO-DI8-RO4-L
Nominal operating voltage 24VDC 12VDC
Operating voltage 20.4 to 28.8VDC 10.2 to 15.6VDC
Maximum current consumption 40mA@24VDC 75mA@12VDC
Environmental IP20 / NEMA1
Operating temperature 0°to 50°C (32°to 122°F)
Storage temperature -20°to 60°C (-4°to 140°F)
Relative Humidity (RH) 5% to 95% (non-condensing)
Dimensions (WxHxD) 80mm x 93mm x 60mm (3.15” x 3.66” x 2.362”)
Weight 164g (5.8oz.)
Mounting Either onto a 35mm DIN-rail or screw- mounted.
Notes:
1. The inputs' LEDs light up only when communication link is established between module and OPLC.
2. Input #7 can function either as a high-speed counter, a frequency measurer, or as a normal digital input.
When Input #7 is used as a normal digital input, normal input specifications apply.
3. Input #6 can function either as the counter’s reset, or as a normal digital input; in either case, its
specifications are those of a normal digital input.

IO-DI8-RO4, IO-DI8-RO4-L I/O Expansion Modules 7/03
About Unitronics
Unitronics Industrial Automation Systems has been producing PLCs, automation software and accessory
devices since 1989.
Unitronics’ OPLC controllers combine full-function PLCs and HMI operating panels into single, compact units.
These HMI + PLC devices are programmed in a single, user-friendly environment. Our clients save I/O points,
wiring, space, and programming time; elements that translate directly into cost-efficiency.
Unitronics supports a global network of distributors and sales representatives, as well as a U.S. subsidiary.
For more information regarding Unitronics products, contact your distributor, Unitronics headquarters via email:
[email protected], or visit the Unitronics website at http://www.unitronics.com/.
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arise as a result of installation or use of this equipment, and is not responsible for problems resulting
from improper or irresponsible use of this device.
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