The Allen-Bradley 1756-IA16 is a high-performance digital AC input module designed for the ControlLogix platform. This module features 16 input points, organized into two groups of 8 points each, providing reliable signal acquisition for industrial automation applications requiring 120V AC interface capabilities.
Features
16 isolated digital AC input points.
Configurable input delay times of 9 or 18 milliseconds to filter noise.
Operates within a voltage range of 74 to 132V AC at 50/60 Hz.
Designed for seamless integration into the ControlLogix backplane.
Low power consumption with a backplane current draw of 100 mA at 5.1V DC.
Applications
This module is engineered for industrial environments where monitoring 120V AC signals is required, such as detecting status from limit switches, pushbuttons, or auxiliary contacts in motor control centers and distributed control systems.
Technical Specifications
Model Number
1756-IA16
Input Points
16 (8 points per group)
Voltage Range
74-132V AC
Frequency
50/60 Hz
Min. ON-state Current
5 mA @ 79V AC
Backplane Power
0.58 W
Backplane Current
100 mA @ 5.1V DC
Input Delay
Programmable (9 or 18 ms)
Installation Guidelines
Ensure power is removed from the backplane before installing or removing the module to prevent electrical damage.
The module must be seated securely into a compatible ControlLogix chassis slot.
Use appropriate shielded cabling for input signal wiring to minimize EMI interference.
Maintain proper ventilation in the control cabinet to ensure the module operates within its specified temperature range.
Handle the module using standard ESD (Electrostatic Discharge) safety practices.
FAQ
What is the input delay range for this module? The 1756-IA16 features a programmable input delay, which can be set to either 9 milliseconds or 18 milliseconds depending on your specific noise-filtering requirements.
How many points are in each group? The 16 inputs are divided into two isolated groups, with 8 points per group.
