Unitronics IO-RO16 User manual

Unitronics Industrial Automation 1
IO-RO16, IO-RO16-L I/O Expansion Modules 16 Relay Outputs
The IO-RO16 and IO-RO16-L are I/O
expansion modules that can be used in
conjunction with specific Unitronics OPLC
controllers.
The modules are identical except for their
power supply specifications: IO-RO16 runs
at 24 VDC; IO-RO16-L at 12 VDC.
Each module offers 16 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: O8-O15
5 Output’s status indicators
6 Module-to-module connector port
7 Output connection points: O0-O7
1 6
2
3
4
7
5
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-RO16, IO-RO16-L I/O Expansion Modules 5/03
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.

5/03 IO-RO16, IO-RO16-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")

IO-RO16, IO-RO16-L I/O Expansion Modules 5/03
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.

5/03 IO-RO16, IO-RO16-L I/O Expansion Modules
Unitronics Industrial Automation 5
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 lines used over an extended distance. Use wire
that is properly sized for the load.
+V
(12/24VDC) 0V
Load
Circuit Protection
Device
L1, L2, L3
(115/230VAC)
Output's
power supply
0V
+V
N
Load
See Note 1.
 Each group of 8 outputs may be connected to either DC or AC.
Wiring the Outputs’ Power Supply
Wiring DC supply
1 Connect the "positive" cable to the "+V" 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.
Notes: 1. The adapter and output’s power supply must be connected to the same 0V signal.
Increasing Contact Life Span
Both modules have 16 relay outputs. To increase the life span of these contacts and protect the
modules from potential damage by reverse EMF, connect:
 a clamping diode in parallel with each inductive DC load, as shown in the left-hand figure below.
 an RC snubber circuit in parallel with each inductive AC load, as shown in the right-hand figure below..
0V
(12/24VDC)
+V
L1, L2, L3
115/230VAC
N
R
C

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6 Unitronics Industrial Automation
IO-RO16, IO-RO16-L Technical Specifications
Max. current consumption 60mA maximum from the adapter’s 5VDC
Typical power consumption 0.18W @ 5VDC
Status indicator
(RUN) Green LED:
—Lit when a communication link is established between module and OPLC.
—Blinks when the communication link fails.
Outputs
Number of outputs 16 relay ( in two groups)
Output type SPST-NO relay; 230VAC / 12/24 VDC
Type of relay
IO-RO16 Fujitsu (Takamisawa) NY-24W-K or NAIS (Matsushita) PA1a-24V
IO-RO16L Fujitsu (Takamisawa) NY-12W-K or NAIS (Matsushita) PA1a-12V
Isolation By relay
Status Indicators
(O0 to O15)
Red LEDs—Lit when the corresponding output is active.
Output current Resistive Load
3A maximum per output
8A maximum total for common. See Note 1.
Inductive Load
1A maximum per output
4A maximum total for common. See Note 1
Maximum frequency 10Hz
Contact protection External precautions required (see above: Increasing Contact Life Span)
Outputs’ power supply: IO-RO16
Nominal operating voltage 24VDC
Operating voltage 20.4 to 28.8VDC
Maximum current consumption 132mA@24VDC
Outputs’ power supply: IO-RO16-L
Nominal operating voltage 12VDC
Operating voltage 10.2 to 15.6VDC
Maximum current consumption 176mA@12VDC
Notes:
1. Each group of 8 outputs share a common signal.
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 125g (4.25 oz.)
Mounting Either onto a 35mm DIN-rail or screw- mounted.

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Unitronics Industrial Automation 7
Addressing I/Os on Expansion Modules
Inputs and outputs located on I/O expansion modules that are connected to an OPLC are assigned
addresses that comprise a letter and a number. The letter indicates whether the I/O is an input (I) or an
output (O). The number indicates the I/O’s location in the system. This number relates to both the position
of the expansion module in the system, and to the position of the I/O on that module.
Expansion modules are numbered from 0-7 as shown in the figure below.
01234567
Expansion module
identification number
Adapter
The formula below is used to assign addresses for I/O modules used in conjunction with the M90 OPLC.
X is the number representing a specific module’s location (0-7). Y is the number of the input or output on
that specific module (0-15).
The number that represents the I/O’s location is equal to:
32 + x • 16 + y
Examples
 Input #3, located on expansion module #2 in the system, will be addressed as I 67,
67 = 32 + 2 • 16 + 3
 Output #4, located on expansion module #3 in the system, will be addressed as O 84,
84 = 32 + 3 • 16 + 4.
EX90-DI8-RO8 is a stand-alone I/O module. Even if it is the only module in the configuration, the EX90-DI8-
RO8 is always assigned the number 7.
Its I/Os are addressed accordingly.
Example
 Input #5, located on an EX90-DI8-RO8 connected to an M90 OPLC will be addressed
as I 149, 149 = 32 + 7 • 16 + 5

IO-RO16, IO-RO16-L I/O Expansion Modules 5/03
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: [e-mail], or visit the Unitronics website at http://www.unitronics.com/.
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IO-RO16 IO-RO16L_1_en_1215