Product Overview
The Allen-Bradley 1746-ITV16 is a sourcing discrete input module from the SLC 500 series, manufactured by Rockwell Automation. It features 16 fast response channels with a nominal input voltage of 24VDC and an operating voltage range of 10-30 VDC. This module is designed for applications requiring rapid ON/OFF switching, such as position monitoring on conveyors or high-frequency counting.
Technical Specifications Breakdown
Key parameters for the 1746-ITV16 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Module Type | Fast response discrete input module |
| Number of Inputs | 16 |
| Nominal Input Voltage | 24VDC |
| Input Voltage Range | 10-30 VDC |
| Wiring Configuration | Source wiring configuration |
| Backplane Current Consumption | 0.085 A (85 mA at 5 Volts DC) |
| Signal Delay, Max (ON) | 0.3 ms |
| Signal Delay, Max (OFF) | 0.5 ms |
| Off-State Voltage, Max | 5VDC |
| Off-State Current, Max | 1.5 milliamps |
| Nominal Input Current | 8 mA at 24VDC |
Industry Applications
High-Speed Counting and Totalizing
It can reliably capture pulses from encoders or proximity sensors, ensuring accurate totals.
Conveyor Position Monitoring
In material handling systems, the module's fast OFF delay (0.5 ms) helps detect gaps or jams quickly. This allows the SLC 500 processor to adjust conveyor speed or trigger alarms without lag.
Data Logging from Binary Sensors
For applications requiring logging of ON/OFF events (e.g., valve position or limit switches), the 1746-ITV16 provides clean, high-speed signal acquisition. Its optical coupling and filter circuitry reduce electrical noise, improving data integrity.
Installation & Setup Guidance
When installing the 1746-ITV16, ensure the backplane power is off. Insert the module into any available slot in the SLC 500 chassis. The module draws 85 mA from the 5VDC backplane supply. Use the removable terminal block for wiring; connect 24VDC sourcing devices (e.g., 3-wire sensors) to the input terminals. Verify that the input voltage stays within the 10-30 VDC range. After power-up, check the LED indicators for each channel to confirm proper input status.
Maintenance & Reliability
The 1746-ITV16 is designed for reliable operation in industrial environments. Inspect the module periodically for dust or debris on the terminal block. The module operates within a temperature range of 0 to 60 °C and 5-95% noncondensing relative humidity. Ensure adequate airflow around the chassis to prevent overheating. No routine calibration is required.
Compatibility & Integration
This module is compatible with all modular and fixed SLC 500 processors. Input data is stored in the processor's data image table and can be accessed via Ladder Logic. The 1746-ITV16 shares the backplane with other digital and analog I/O modules, allowing flexible system configuration.
Selection Guide & Purchasing Advice
When selecting the 1746-ITV16 for your application, confirm that your system requires sourcing inputs and 24VDC operation. AutoDCSTech stocks the 1746-ITV16 and can assist with availability and lifecycle status. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Troubleshooting & Common Issues
If an input channel does not respond, first check the LED indicator. If off, verify that the field device is supplying the correct voltage (10-30 VDC). Inspect wiring connections at the removable terminal block. If multiple channels fail, check the backplane connection and ensure the module is fully seated. For intermittent signals, examine the sensor cable for damage or noise sources near the wiring.
Availability & Condition at AutoDCSTech
| Part Number | 1746-ITV16 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
