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OverviewManualsCommon ApplicationsInstallation and Wiring
The 1746-ITB16 is a 16-point, 24V DC fast response sink input module designed for use with SLC 500 modular and fixed hardware. The module consists of 16 input points organized in a single group with one common return terminal, operating within a sink voltage range of 10 to 30V DC.
Fast Response Time
High-Density Inputs
Direct Backplane Interface
This module features a maximum signal delay of 0.3 ms for both off-to-on and on-to-off transitions, providing higher speed sensing than standard DC input modules. It interfaces directly with the SLC backplane, drawing a maximum of 85 mA at 5V DC, and supports field wiring via a removable terminal block for #14 to #22 AWG wire sizes.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Allen-Bradley 1746-ITB16 Discrete input module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Automotive Manufacturing
Implemented in high-speed robotic welding and stamping presses to monitor proximity sensors and limit switches. The 0.3 ms response time is critical for synchronizing motion control and ensuring operator safety during rapid assembly cycles.
Pharmaceutical Packaging
Used on high-throughput bottling and blistering lines for precise vial counting and rejection systems. It ensures real-time detection of missing caps or misaligned labels to maintain strict quality control and regulatory compliance.
Semiconductor Processing
Applied in wafer handling and pick-and-place machinery for high-speed component positioning. The module interfaces with fast-acting optical sensors to coordinate delicate movements without reducing the production machine’s cycle rate.
Textile Machinery
Utilized in high-speed rotary looms and fabric tensioning systems for immediate thread-break detection. The fast signal transition allows the system to stop mechanical movement instantly, preventing material waste and machine damage.
Food Processing
Designed for high-speed optical sorting systems that identify and deflect contaminated or off-spec products on a fast-moving belt. It provides the necessary input speed to trigger pneumatic rejectors with millisecond precision.
Printing Logistics
Deployed in high-speed rotary printing presses and automated mail sorting facilities for edge detection and registration. The 0.3 ms delay allows for accurate tracking of paper or parcels moving at high linear velocities.
The 1746-ITB16 module must be installed or removed from the SLC 500 chassis only when the power is turned off to prevent damage to the backplane. The module is a sinking configuration; therefore, the sourcing field device must be connected between the input terminal and the DC positive supply, with the common terminal (DC COM) connected to the DC negative. All wiring must be routed away from high-voltage lines and sharp edges, and the terminal screws must be tightened to a maximum torque of 0.9 Nm (8 lb-in.) to ensure reliable electrical contact.
What is the operating voltage range for the 1746-ITB16 input module?
The 1746-ITB16 operates within a sink voltage range of 10 to 30V DC, with a nominal input voltage of 24V DC.
What are the maximum
The maximum on-state input current is 8 mA at 30V DC, while the maximum off-state current is 1.5 mA to ensure proper signal detection.
What is the signal delay characteristic of the 1746-ITB16 fast response module?
The module features a maximum signal delay of 0.3 ms for both "off-to-on" and "on-to-off" transitions, significantly faster than standard DC input modules.
How many input points and commons does the 1746-ITB16 provide?
The 1746-ITB16 provides 16 input points organized in a single group with one common return terminal.
What is the backplane current draw for the 1746-ITB16 at 5V DC?
The module draws a maximum of 85 mA from the 5V DC SLC backplane; it does not draw any current from the 24V DC backplane.
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