The Allen-Bradley 1756-IA32 is a high-density ControlLogix AC input module, designed to seamlessly interface with signaling devices that provide AC input signals ranging from 74 to 132 VAC. This module features 32 input channels, divided into two isolated groups of 16, enhancing functionality even during group malfunctions. It offers reliable input-to-backplane isolation, with a fixed hardware delay of 1.5 ms for off-to-on and 1 ms for on-to-off transitions, alongside user-adjustable filter times. Operating efficiently in the 120 V AC, 50/60 Hz voltage category, it supports a maximum current draw of 165 mA at 5.1 V, a backplane power consumption of 0.9 W, and a power dissipation of up to 6.1 W at 60 °C, while its thermal dissipation reaches 20.8 BTU/hour. The 1756-IA32 supports the use of compatible removable terminal blocks, specifically the 1756-TBCH and 1756-TBS6H, to facilitate smooth signal termination.
Technical specifications for 1756-IA32
Manufacturer
Rockwell Automation
Backplane Current at 24 Volts
2 milliamperes
Power Dissipation (Max)
6.1 W @ 60 °C (140 °F)
Operating Voltage Range
74-132 VAC
Input Voltage
120 VAC Volts AC
Module Type
Digital DC Input Module
Series
ControlLogix
Part Number/Catalog No.
1756-IA32
Brand
Allen-Bradley
No. of Inputs
Thirty-Two (32) Inputs
Module Keying
Electronic
Input Delay Time, OFF to ON
Hardware delay: 1.5 ms nom/10 ms max + filter time
