Product Overview
The Allen-Bradley 1790-T16BV0X is a 24V dc 16 Universal Input Base and Expansion Module from the 1790 series. This module provides 16 points of universal input, configurable for sinking or sourcing applications. It integrates DeviceNet power directly on the base module, simplifying wiring and reducing panel space. Designed for demanding industrial environments, it offers reliable signal acquisition with photocoupler isolation for enhanced noise immunity.
Technical Specifications Breakdown
Key parameters for the 1790-T16BV0X are listed below for quick reference:
| Feature | Specification |
|---|---|
| Inputs per Module | 16 points, sinking or sourcing |
| On-State Voltage | 9.6V dc min, 24V dc nom, 28.8V dc max |
| Off-State Voltage | 5.0V dc max |
| On-State Current | 8 mA max per channel @ 28.8V dc |
| Input Impedance, Nom | 4.8 KΩ |
| Indicators | 16 green input status |
| Common Type | 8 points/8COM (non-polarity) |
| Supply Voltage | 24V dc nom, range 11…28.8V dc |
| Power Dissipation | 1.2 W max @ 28.8V dc |
| Isolation | I/O to logic: photocoupler isolation, 1250V ac rms |
| Wiring | Terminal block (M3.0), screw torque: 7 lb-in max |
Industry Applications
In packaging machinery, the 16 sinking/sourcing inputs can track product flow and machine status. In material handling systems, the 1790-T16BV0X connects to proximity sensors and limit switches, providing reliable data to the controller. The DeviceNet power integration reduces cabling complexity, lowering installation costs.
Installation & Setup Guidance
Mount the 1790-T16BV0X on a DIN rail or panel using the provided slots. Use copper or copper-clad aluminum conductors for wiring. Tighten terminal block screws to 7 lb-in maximum to ensure secure connections without damage. Connect the 24V dc supply within the 11…28.8V dc range. Configure inputs as sinking or sourcing per your sensor requirements. Verify that the off-state voltage remains below 5.0V dc to avoid false triggering.
Maintenance & Reliability
Periodically inspect the green input status LEDs to verify channel operation. Keep the module free from dust and moisture. The photocoupler isolation protects against voltage transients, but avoid exceeding 1250V ac rms between I/O and logic. Check that the power dissipation does not exceed 1.2 W at maximum voltage. No internal adjustments are required.
Compatibility & Integration
The 1790-T16BV0X integrates with Allen-Bradley 1790 series base and expansion modules. It uses DeviceNet power from the base module, simplifying network connectivity. The non-isolated DeviceNet power path requires careful grounding per manufacturer guidelines. The module communicates input status to the controller via the backplane.
Selection Guide & Purchasing Advice
When selecting input modules, consider the number of points and voltage range. The 1790-T16BV0X offers 16 universal inputs with a wide 11…28.8V dc range. For applications needing more inputs, expand with additional 1790 modules. AutoDCSTech stocks this module and can advise on compatibility with your existing system. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Troubleshooting & Common Issues
If an input channel does not respond, check the on-state voltage at the terminal. Ensure it is above 9.6V dc and below 28.8V dc. Verify that the off-state voltage is below 5.0V dc. Inspect the green LED for each channel; a dark LED indicates no signal. Confirm that the common wiring (8 points/8COM) is correct and non-polarity connections are secure. If multiple channels fail, test the power supply voltage at the module terminals.
Availability & Condition at AutoDCSTech
| Part Number | 1790-T16BV0X |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
