Allen-Bradley 1746-IA16 is an SLC 500 digital AC input module. The digital AC input module has sixteen (16) input channels with a voltage range of 85-132 volts AC. This module occupies a single slot in the SLC 500 chassis.
Allen-Bradley 1746-IA16 is an AC input module that can be used as a component of the SLC 500 controller platform. The input module has sixteen (16) channels and can accept AC signal voltage ranges of 85-132 VAC.
The input module is an essential component of any programmable logic controller (PLC) because it provides a real-time interface to discrete devices in the process. It represents the actual state of the signaling device for reference by the controller to process the logic. Most PLC systems use input scanning as the primary stage of executing user programs. If no input signal is detected, the controller has no reference to execute the program.
The AC input module has twenty (20) terminals. All terminals are used together with Terminals 18 and 19 as public Spaces for internal connections. The terminal of the module is removable, and the input module can be replaced without reconnecting the input terminal.
It has adjustable parameters to fine-tune the operation of the module. There are no restrictions on installing 1746-IA16, as long as the chassis has available slots to support the installation. The module can be installed in a fixed hardware or modular hardware-style controller, or installed locally or in an extension rack.
The module belongs to the SLC 500 AC input module and the operating voltage class is 100-120VAC. For 200/240VAC operation, the corresponding part number is 17460IM16. Neither module provides an internal protection circuit. Any AC input device terminated to this module shall be compatible with the SLC 500 input circuit surge current.
Allen-Bradley 1746-IA16 weighs 0.34 kg and measures 5 x 2 x 6 (13 cm x 5 cm x 15 cm). The controller module has 0.27 watts per point, with a minimum of 0.425 watts, for a total of 4.8 watts. The module has a 100-120V AC input signal voltage class with 16 points per common point and 16 points per input. 1746-IA16 is a universal input application. It is mounted as a chassis with 16 channels. The operating voltage range is 85-132V AC input signal. It has a 16-channel digital AC input module for the programmable controller. The operating voltage is 85-132 V AC, and the operating frequency is 47-63 Hz. The backplane current consumption is 0.085 mA at 5V DC and 0.0A at 24V DC.
The maximum value of the on-delay signal is 35 ms and the maximum value of the off delay signal is 45 ms. The maximum OFF state voltage is 30V AC and the OFF state current is 2 mA. The input current at 120V AC is 12 mA nominal. 1746-IA16 has a maximum surge current duration of 500 microseconds and a maximum surge current of 0.8 mA.
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