75 Miliamperes Digital I O Module PLC 120 Volts AC DC Allen Bradley 1771-IA2
Brand Name:AB
Certification:dose not supply
Model Number:1771-IA2
Minimum Order Quantity:1
Delivery Time:5-8 work days
Payment Terms:T/T
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AB 1771-IA2 PLC 5 Digital Input Module, Voltage Rating 120 Volts AC/DC
Technical Specifications for 1771-IA2
| Manufacturer | Rockwell Automation |
| Brand | AB |
| Part Number/Catalog No. | 1771-IA2 |
| Module Type | Digital Input Module |
| Voltage Rating | 120 Volts AC/DC |
| Intended For Use With | AC/DC Proximity Switches |
| Wiring Arm | 1771-WA |
| DC Operating Voltage | 97-138 Volts |
| Backplane Current | 75 Miliamperes |
| Max AC Off-State Current | 2.8 Miliamperes |
| Max DC Off-State Current | 2.8 Miliamperes |
| Typical AC Signal Delay (On) | 24 (+/- 10) ms |
| Typical DC Signal Delay (On) | 10 (+/- 4) ms |
| Typical AC Signal Delay (Off) | 24 (+/- 10) ms |
| Typical DC Signal Delay (Off) | 20 (+/- 9) ms |
| Wiring Arm | 1771-WA |
About 1771-IA2
The AB 1771-IA2 is a PLC 5 Digital AC/DC Input Module. It converts
AC signals provided by user devices to the logic level needed by
the processor. It directly controls the state of corresponding bits
in the PLC data table. It contains various input devices such as
pushbuttons, limit switches, pilot lights, motor starters, and
annunciators to interface with on/off sensors and actuators. It
provides a modular design with space-saving and pocket-friendly
means to add input to a PLC control system. It comes with a 1771-WA
wiring arm to replace the module, eliminating the need to
disconnect wiring. It is a series A module and supports ½, 1, and
2-slot I/O addressing. It has applications with AC/DC proximity
switches.
The 1771-IA2 module has 8 inputs with a 120V AC/DC voltage
category. It has an operating voltage range of 87 - 138V AC or 97 -
138V DC. It has a typical signal delay of 24ms (±10) at on/off AC
state and 10ms (±4) at on and 20ms (±9) at off DC state. It has a
maximum off-state current of 2.8mA and a backplane current load of
75mA. It has a maximum power dissipation of 10.7W and thermal
dissipation of 36.5 BTU/hr. It is installed in a 1771 I/O chassis
containing a PLC processor. Keying bands for putting it in the
right slot are between pins 10 and 12 for the upper connector and
between pins 4 and 6 for the lower connector.
The 1771-IA2 module has 8 orange status indicators for field-side
indication at the front panel. It contains optoelectrical isolation
to protect the system circuits from electrical transients. It also
contains input filtering feature to reduce electrical noise.
75 Miliamperes Digital I O Module PLC 120 Volts AC DC Allen Bradley 1771-IA2
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