Unitronics Industrial Automation Systems
1
IO-AI4-AO2
I/O Expansion Module 4 Analog Inputs, 2 Analog Outputs
The IO-AI4-AO2 is an I/O expansion
module that can be used in conjunction
with specific Unitronics OPLC controllers.
The module offers 4 12-bit analog inputs;
functioning at 0-10V,0-20mA, 4-20mA;
and 2 12-bit +sign analog outputs;
functioning at ±10V, 0-20mA, 4-20mA.
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
Communication status indicator
3
Connection points for power
supply to analog unit
4
Output connection points
5
Input/Output status indicators
6
Module-to-module connector port
7
Input connection points
1
6
2
3
OUT OF RANGE
SHORT CIRCUIT
IO-AI4-AO2
AI
AO
24 VDC
+V 0V
I
V
COM
AO0
I
V
COM
AO 1
I
V
COM
AI3
I
V
COM
AI2
I
V
COM
AI1
I
V
COM
AI0
5
4
7
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 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.
