Description
TL-A2540P-BJ32AA Allen‑Bradley Input Module
Product Dimensions：
Product Description
The Allen-Bradley Basic DC Input Module is a core component in the Allen-Bradley PLC-5 and SLC 500 I/O systems. It serves as an interface between field input devices—such as sensors, switches, and pushbuttons—and the programmable logic controller (PLC). This module converts DC signals from the field into logic-level signals that the PLC can process, enabling real-time monitoring and control in industrial environments.
The module is designed for high reliability and ease of integration, making it ideal for use in harsh industrial settings where stable and accurate signal acquisition is critical.
Product Specifications
| Parameter | Value |
|---|---|
| Part Number | 1771-DB (example; may vary by version) |
| Input Type | DC input |
| Number of Inputs | 16 points (isolated per group) |
| Input Voltage Range | 10–30V DC |
| Input Current | Typically 7–10mA per input (ON state) |
| Response Time | <10 ms |
| Isolation | 1500V AC between input and logic, group to group |
| Backplane Current | 250mA max (5V DC) |
| Operating Temp | 0–60 °C (32–140 °F) |
| Humidity | 5–95% (non-condensing) |
| LED Indicators | One per input point (status) |
| Module Type | 1771 I/O chassis compatible |
| Wire Size | 14–22 AWG |
Product Advantages
- High Compatibility: Fully compatible with PLC-5 and SLC 500 systems, allowing seamless integration into existing control architectures.
- Modular Design: Supports hot-swapping in certain configurations, minimizing downtime during maintenance.
- Robust Signal Isolation: Provides electrical isolation between input groups and backplane, enhancing system safety and noise immunity.
- Visual Diagnostics: Individual LED status indicators for each input point enable quick troubleshooting.
- Wide Voltage Range: Supports a broad input voltage range (10–30V DC), offering flexibility across various field devices.
- Durable Construction: Designed to withstand harsh industrial environments, including wide temperature ranges and high humidity.
Precautions
- Wiring Polarity: Ensure correct polarity when connecting DC inputs to avoid damage or malfunction.
- Power Supply Matching: Use a stable, properly rated DC power supply to prevent signal fluctuations.
- Grounding: Proper grounding is essential to avoid noise interference and ensure reliable operation.
- Environmental Limits: Do not exceed the module’s operating temperature or humidity specifications.
- ESD Protection: Handle the module with care to prevent electrostatic discharge (ESD) damage.
- Compatibility Check: Always verify compatibility with your PLC system and I/O chassis before installation.
- Fusing: Consider using external fuses to protect the module and field wiring from overcurrent conditions.
Product Applications
The Allen-Bradley Basic DC Input Module is widely used across various industries for real-time digital signal acquisition, including:
- Manufacturing Automation: Monitoring limit switches, photoelectric sensors, and emergency stop buttons.
- Material Handling Systems: Detecting object presence or position using DC proximity sensors.
- Process Control: Reading status signals from valves, relays, and actuators in continuous processes.
- Packaging Machinery: Acquiring inputs for product counting, alignment, and safety interlocks.
- Automated Assembly Lines: Capturing signals from part detection sensors and machine status indicators.
- Utilities & Infrastructure: Monitoring switchgear and control signals in power plants and water treatment facilities.
- Building Automation: Integrating with HVAC and lighting control systems for facility management.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
Please make an inquiry for more models：
| AB | 1746-OB16 |
| AB | 1746-OB16E |
| AB | 1746-OB32 |
| AB | 1746-OB32E |
| AB | 1746-OB8 |
| AB | 1746-OBP16 |
| AB | 1746-OG16 |
| AB | 1746-OV16 |
| AB | 1746-OV32 |
| AB | 1746-OW16 |
| AB | 1746-OW16/C |
| AB | 1746-OW16/C/D |
| AB | 1746-OW4 |
| AB | 1746-OW8 |
| AB | 1746-OX8 |
| AB | 1746-P1 |
| AB | 1746-P2 |
| AB | 1746-P2/C |
| AB | 1746-P3 |
| AB | 1746-P4 |
| AB | 1746-P5 |
| AB | 1746-P6 |
| AB | 1746-P7 |
| AB | 1746SC-NI8U |
| AB | 1746SC-OAP8I |
| AB | 1747-ACN15 |
| AB | 1747-ACNR15 |
| AB | 1747-ACNR15/A |
| AB | 1747-ASB |
| AB | 1747-ASB/A |
| AB | 1747-ASB1747-L511 |
| AB | 1747-BA |
| AB | 1747-BSN |
| AB | 1747-BSN1771-IFE |
| AB | 1747-CP3/A |
