The Allen-Bradley 1771-IA is a PLC 5 Digital AC/DC Input Module essential for interfacing field devices, such as pushbuttons and sensors, to a PLC control system. It features eight discrete input channels that operate within the 120VAC and 125VDC voltage range, ensuring reliable signal conversion to the necessary logic levels. This module, designed for installation in the 1771 PLC5 chassis, boasts a modular structure with a convenient 1771-WA wiring arm for seamless signal wire termination, allowing for easy module replacement without disturbing existing wiring. Offering robust protection through optoelectrical isolation and input filtering to minimize electrical noise, the 1771-IA ensures efficient system performance.
Technical specifications for 1771-IA
Manufacturer
Rockwell Automation
Brand
Allen-Bradley
Part Number/Catalog No.
1771-IA
Module Type
Digital AC/DC Input Module
Number of Inputs
8 Inputs
Voltage Category
120 Volts AC/DC
Compatible Chassis
1771-AB thru 1771-A4B
AC Operating Voltage
87-138 Volts
DC Operating Voltage
97-138 Volts
Backplane Current
75 Miliamperes
Max AC Off-State Current
2.8 Miliamperes
Typical AC Signal Delay (On)
24 (+/- 10) ms
Typical DC Signal Delay (On)
10 (+/- 4) ms
Typical DC Signal Delay (Off)
20 (+/- 9) ms
UPC
10662468205440
Wiring Arm
1771-WA
Dimensions
3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
Agency Certification
(when product or packaging is
marked)
• CSA certified • CSA Class I, Division 2, Groups A, B, C, D certified • UL listed • CE marked for all applicable directives
