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IO-AI4-AO2   

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Unitronics Industrial Automation Systems 

 

 

IO-AI4-AO2 Technical Specifications 

Max. current consumption 

30mA maximum from the adapter’s 5VDC 

Typical power consumption 

0.1W @ 5VDC 

Status indicator  

 

(RUN) Green 

LED: 

—Lit when a communication link is established between module and OPLC. 
—Blinks when the communication link fails. 

Analog Inputs 

 

Number of inputs 

4 (single-ended) 

Input range 

0-10V, 0-20mA ,4-20mA. See Note 1. 

Conversion method 

Successive approximation 

Resolution (except at 4-20mA) 

12-bit (4096 units) 

Resolution at 4-20mA 

819 to 4095 (3277 units) 

Conversion time 

20msec 

Input impedance 

1M

—voltage 

121.5

—current 

Galvanic isolation 

None 

Absolute maximum rating 

±20V—voltage  
±40mA—current 

Full-scale error 

±4 LSB (0.1%) 

Linearity error 

±1 LSB (0.025%) 

Operational error limits 

±0.4% 

Status indicators  
(OUT OF RANGE) 

Red LEDs—Lit when the corresponding input is receiving current or voltage in 
excess of the input range. See Note 2. 

Analog Outputs 

 

Number of outputs 

2 (single-ended) 

Output range 

±10V, 0-20mA, 4-20mA.  See Note 1. 

Resolution (except at 4-20mA) 
Resolution at 4-20mA 

12-bit (4096 units) + sign  
819 to 4095 (3277 units) 

Load impedance 

1k

 minimum—voltage 

500

 maximum—current 

Galvanic isolation 

None 

Conversion time 

5msec 

Linearity error 

±0.1% 

Operational error limits 

±0.2% 

Status Indicators  

 

(SHORT CIRCUIT) 

Red LED—Lit when an output wired to deliver a positive voltage is 
short-circuited.  See Note 3. 

Analog Power Supply 

24VDC 

Permissible range 

20.4 to 28.8VDC 

Max. current consumption 

75mA@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  

146.3g (5.15oz.) 

Mounting 

Either onto a 35mm DIN-rail or screw- mounted. 

 

Summary of Contents for O-AI4-AO2

Page 1: ...nt 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 i...

Page 2: ...e 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 60mm 3 5mm 14mm 80mm 93mm 44 5mm OUT OF RANGE SHORT CIRCUIT IO AI4 AO2 AI AO 24 VDC V 0V I V COM AO0 I V COM AO1 I V COM AI3 I V ...

Page 3: ...11 00 IO AI4 AO2 I O Expansion Module Unitronics Industrial Automation Systems 3 4mm 5 8mm 85mm 80mm 68 4mm 93mm 4mm x2 ...

Page 4: ... Note that the COM signals of each I O are internally connected to the module s 0V 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 inche...

Page 5: ... Output Wiring Shields should be earthed connected to the earth of the cabinet Do not connect unused outputs An output can be wired to either current or voltage Do not use current and voltage from the same source channel Wiring the Analog 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...

Page 6: ...25 Operational error limits 0 4 Status indicators OUT OF RANGE Red LEDs Lit when the corresponding input is receiving current or voltage in excess of the input range See Note 2 Analog Outputs Number of outputs 2 single ended Output range 10V 0 20mA 4 20mA See Note 1 Resolution except at 4 20mA Resolution at 4 20mA 12 bit 4096 units sign 819 to 4095 3277 units Load impedance 1kΩ minimum voltage 500...

Page 7: ...at 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 0 1 2 3 4 5 6 7 Expansion module identification numb...

Page 8: ...conjunction with the EX A1 adapter 12 bit sign 2 outputs 10V 0 20mA 4 20mA 12 bit 4 inputs 0 10V 0 20mA 4 20mA IO AI4 AO2 Analog I O To order the expansion module that best fits your system contact your local distributor For a list of Unitronics distributors check our website http www unitronic com contact htm 12 bit 4 PT100 50 to 460 C IO PT4 PT 100 8 8 8 8 8 8 8 8 C C C C C C C C o o o o o o o o...

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