Overview
The Allen-Bradley 1746-IA16 /D is a discrete AC input module designed for the SLC 500 controller platform. This digital AC input module is designed to interface with 16 discrete AC input channels. The module is compatible for use as a component of the SLC 500 controller platform and has sixteen channels that accept AC signal voltage range of 85-132 VAC.
Key Features
- Accepts voltage range of 85-132 VAC
- Twenty terminals with terminals 18 and 19 serving as internally connected commons
- Removable terminal block facilitates easy replacement without disconnecting wires
- Signal ON-delay maximum of 35 ms and OFF-delay maximum of 45 ms
- No installation limit as long as chassis has available slots; can be installed in fixed or modular hardware style controller, locally or in expansion rack
- Adjustable parameters to fine-tune module operation
Technical Specifications
- Operating voltage: 85-132V AC at 47-63 Hz
- Backplane current consumption at 5V DC: 0.085 mA; at 24V DC: 0.0 A
- ON-delay: 35 ms max; OFF-delay: 45 ms max
- Input current at 120V AC: 12 mA nominal
- Inrush current: maximum 0.8 mA, time duration 500 microseconds maximum
- Dimensions: 5 x 2 x 6 inches (13 cm x 5 cm x 15 cm); Weight: 0.34 kg
Typical Applications
The 1746-IA16 is suitable for general-purpose input applications. Input modules are necessary components of any Programmable Logic Controller as they provide real-time interface to discrete devices in the process, representing the actual state of signaling devices. Most PLC systems perform Input scan as the primary phase for executing a user program, and if input signals are not detected, the controller will have no reference for executing the program. Common uses include material handling, HVAC control, assembly operations, and process control systems.
Compatibility & Replacements
Compatible With
- Allen-Bradley SLC 500 fixed controllers
- Allen-Bradley SLC 500 modular controllers
- SLC 500 expansion racks
- Any SLC 500 chassis with available I/O slots
Replaces / Drop-In Replacement For
- Original OEM 1746-IA16 modules
- For 200/240VAC voltage operation, the counterpart part number is 1746-IM16 (different voltage rating)
Works With
- Allen-Bradley RSLogix 500 programming software
- SLC 500 I/O configuration and control systems
- Discrete 120V AC sensors and input devices
- Standard SLC 500 terminal block connectors
