Unitronics IO-TO16 I/O Expansion Module User Manual

IO-TO16
I/O Expansion Module
16 Transistor Outputs

IO-TO16 I/O Expansion Module

The IO-TO16 is an I/O expansion module that can be used in conjunction with specific Unitronics OPLC controllers.
The module offers 16 pnp (source) transistor outputs.
The interface between the module and the OPLC is provided by an adapter.
The module may either be snap-mounted on a DIN rail, or screw-mounted onto a mounting plate.

Component identification

1| Module-to-module connector
2| Status indicators
3| Outputs’ power supply connection
points for each group of outputs
4| Output connection points: O8-O15
5| Output status indicators
6| Module-to-module connector port
7| Output connection points: O0-O7

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 electrical wiring of this device.

• Under no circumstances will Unitronics be liable or responsible for any consequential damage that may 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.
• All examples and diagrams shown in the manual are intended to aid understanding. They do not guarantee operation.
• Unitronics accepts no responsibility for actual use of this product based on these examples.
• Only qualified service personnel should open this device or carry out repairs.
• Please dispose of this product in accordance with local and national standards and regulations.
• Check the user program before running it.
• Do not attempt to use this device with voltage exceeding permissible levels.
• Install an external circuit breaker and take all appropriate safety measures against short- circuiting in external wiring.
• 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.

Mounting the Module

Mounting 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.
• Provide proper ventilation by leaving a minimum space of 10mm 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.

DIN-rail mounting
Snap the device onto the DIN rail as shown below; the module will be squarely situated on the DIN rail.

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.

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

Wiring

Wire Size
Use 26-12 AWG wire (0.13 mm²–3.31 mm² ) for all wiring purposes.
Wiring Considerations

• Note that the adapter, outputs and the power supply for both groups of outputs must be connected to the same 0V signal.
• Do not use tin, solder or any other substance on the stripped wire that might cause the wire strand to break.
• We recommend that you use crimp terminals for wiring.
• Install at maximum distance from high-voltage cables and power equipment.

General Wiring Procedures

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 touch live wires.
• Double-check all the wiring before turning on the power supply.

I/O Wiring

• 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 output lines used over an extended distance. Use wire that is properly sized for the load.

Wiring the Power Supplies to both groups of Outputs
Wiring DC supply

1. First group of outputs: connect the “positive” cable to the “+V0” terminal, and the “negative” to the “0V” terminal.
2. Second group of outputs: connect the “positive” cable to the “+V1” 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.

IO-TO16 Technical Specifications

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 pnp (source) in 2 groups
Output type| P-MOSFET (open drain), 24VDC
Galvanic isolation| None
Output current| 0.5A maximum (per output)
Total current: 3A maximum (per group)
Maximum frequency| 20Hz (resistive load)
0.5 Hz (inductive load)
Short circuit protection| Yes
Status Indicators| See Notes
(OUT)| Red LEDs—Lit when the corresponding output is active.
(S.C)| Red LED—Lit when an output’s load short-circuits.
Operating voltage (per group)|  20.4 to 28.8VDC
Nominal operating voltage| 24VDC
Environmental| IP20
Operating temperature| 0° to 50° C
Storage temperature| -20° to 60° C
Relative Humidity (RH)|  5% to 95% (non-condensing)
Dimensions (WxHxD)| 80mm x 93mm x 60mm
Weight| 144g (5.08oz.)
Mounting| Either onto a 35mm DIN-rail or screw- mounted.

Notes:

1. When an output is connected to a load that short-circuits, that output turns off and the S.C. LED lights up on the module. Although the output turns off, the LED of that output remains lit.
2. The short circuit is also identified by the software program within the controller connected to the module.
   Within the M90 OPLC, for example, SB 5 turns ON. SI 5 contains a bitmap indicating the module containing the affected output.
   For more information, refer to the on-line help supplied with the programming package of your controller.

Addressing I/Os on M90 Expansion Modules

Inputs and outputs located on I/O expansion modules that are connected into an M90 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.

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

UL Compliance

The following section is relevant to Unitronics’ products that are listed with the UL.
The following models: IO-AI4-AO2, IO-AO6X, IO-ATC8, IO-DI16, IO-DI16-L, IO- DI8-RO4, IO-DI8-RO4-L, IO-DI8-TO8, IO-DI8-TO8-L, IO-RO16, IO-RO16-L, IO-RO8, IO-RO8L, IO-TO16, EX-A2X are UL listed for Hazardous Locations.
The following models: EX-D16A3-RO8, EX-D16A3-RO8L, EX-D16A3-TO16, EX- D16A3-TO16L, IO-AI1X-AO3X, IO-AI4-AO2, IO-AI4-AO2-B, IO-AI8, IO-AI8Y, IO-AO6X, IO-ATC8, IO-D16A3-RO16, IO-D16A3-RO16L, IO-D16A3-TO16, IO-D16A3-TO16L, IO- DI16, IO-DI16-L, IO-DI8-RO4, IO-DI8-RO4-L, IO-DI8-RO8, IO-DI8-RO8-L, IO- DI8-TO8, IO-DI8-TO8-L, IO-DI8ACH, IO-LC1, IO-LC3, IO-PT4, IO-PT400, IO-PT4K, IO-RO16, IO-RO16-L, IO-RO8, IO-RO8L, IO-TO16, EX-A2X, EX-RC1 are UL listed for Ordinary Location.

UL Ratings, Programmable Controllers for Use in Hazardous Locations,
Class I, Division 2, Groups A, B, C and D
These Release Notes relate to all Unitronics products that bear the UL symbols used to mark products that have been approved for use in hazardous locations, Class I, Division 2, Groups A, B, C and D.

Caution ◼

• This equipment is suitable for use in Class I, Division 2, Groups A, B, C and D, or Non-hazardous locations only.
• Input and output wiring must be in accordance with Class I, Division 2 wiring methods and in accordance with the authority having jurisdiction.
• WARNING—Explosion Hazard—substitution of components may impair suitability for Class I, Division 2.
• WARNING – EXPLOSION HAZARD – Do not connect or disconnect equipment unless power has been switched off or the area is known to be non-hazardous.
• WARNING – Exposure to some chemicals may degrade the sealing properties of material used in Relays.
• This equipment must be installed using wiring methods as required for Class I, Division 2 as per the NEC and/or CEC.

Relay Output Resistance Ratings
The products listed below contain relay outputs:
Input/Output expansion modules, Models: IO-DI8-RO4, IO-DI8-RO4-L, IO-RO8, IO- RO8L

• When these specific products are used in hazardous locations, they are rated at 3A res, when these specific products are used in non-hazardous environmental conditions, they are rated at 5A res, as given in the product’s specifications.

The information in this document reflects products at the date of printing. Unitronics reserves the right, subject to all applicable laws, at any time, at its sole discretion, and without notice, to discontinue or change the features, designs, materials and other specifications of its products, and to either permanently or temporarily withdraw any of the forgoing from the market.
All information in this document is provided “as is” without warranty of any kind, either expressed or implied, including but not limited to any implied warranties of merchantability, fitness for a particular purpose, or non- infringement. Unitronics assumes no responsibility for errors or omissions in the information presented in this document. In no event shall Unitronics be liable for any special, incidental, indirect or consequential damages of any kind, or any damages whatsoever arising out of or in connection with the use or performance of this information.
The tradenames, trademarks, logos and service marks presented in this document, including their design, are the property of Unitronics (1989) (R”G) Ltd. or other third parties and you are not permitted to use them without the prior written consent of Unitronics or such third party as may own them.

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