Allen-Bradley 1790D-T0V16 24V DC 16 Sinking Output Module

Product Introduction

When your control system demands reliable digital output switching, the Allen-Bradley 1790D-T0V16 delivers. This 24V DC 16 sinking output module is part of the 1790D series, designed for base and expansion modules in industrial automation. With 16 nonisolated sinking outputs, it provides a robust interface between your controller and field devices like solenoids, relays, and indicator lights. The module operates on a nominal 24V DC supply, ensuring compatibility with standard industrial power systems.

Technical Specifications Breakdown

The 1790D-T0V16 offers key performance metrics that matter for demanding applications. Each output channel handles up to 0.5 A continuously, with a total common current rating of 4.0 A per common. The module uses an 8-points-per-2-COM configuration, meaning two commons serve eight outputs each. On-state voltage ranges from 10V DC minimum to 28.8V DC maximum, with a nominal 24V DC. The on-state voltage drop stays below 0.5V DC, ensuring efficient power delivery. Off-state leakage is limited to 0.5 mA maximum, preventing false triggering. Output signal delay is fast: 0.5 ms max from off to on and 1.0 ms max from on to off. Sixteen green status indicators provide clear visual feedback for each channel. Photocoupler isolation between I/O and logic, rated at 1250V AC rms, protects your control system from electrical noise and transients.

Industry Applications

In manufacturing lines, the 1790D-T0V16 excels at controlling actuators and valves. For example, in a packaging machine, it can drive multiple pneumatic solenoids simultaneously, with the 0.5A per output handling typical solenoid loads. The fast 0.5 ms turn-on time ensures precise timing for high-speed operations. In material handling systems, the module's sinking outputs interface directly with PLC input modules or motor starters, simplifying wiring and reducing component count. The 4.0A per common rating supports multiple outputs active at once, ideal for grouped control in conveyor zones.

Installation & Setup Guidance

Mount the 1790D-T0V16 on a DIN rail within your control panel. Use copper or copper-clad aluminum conductors for wiring. The terminal block accepts M3.0 screws; tighten to 7 lb-in maximum torque. Connect the field power supply (10 to 28.8V DC) to the appropriate terminals. The DeviceNet base module requires a separate 24V DC supply (11 to 28.8V DC). Verify polarity for sinking outputs: the load connects between the output and the common (COM) terminal. Ensure the total current per common does not exceed 4.0 A. For best noise immunity, keep I/O wiring separate from high-power cables.

Maintenance & Reliability

Routine inspection of the 1790D-T0V16 ensures long service life. Check the green status indicators periodically; any unlit channel may indicate a blown fuse or wiring fault. Verify that screw terminals remain tight to the specified torque. The module's photocoupler isolation enhances reliability by preventing ground loops and surge damage. In environments with high vibration, use locking washers on mounting screws. The module dissipates only 1.2 W maximum at 28.8V DC, minimizing heat buildup in the enclosure. For critical applications, consider redundant modules to maintain uptime.

Buying Guide

Before purchasing the 1790D-T0V16, confirm your system's voltage requirements: the module needs a 24V DC field supply and a separate 24V DC DeviceNet power supply. Verify that your controller supports sinking output modules. The module is nonisolated between outputs, so ensure your load wiring does not introduce excessive noise. BluePLC Industrial offers this module with expert support and fast shipping. Contact us for current availability and lifecycle status. For complete technical specifications, please contact BluePLC Industrial.