Description
The Allen-Bradley 1756-IR6I is a high-performance isolated RTD input module designed for the ControlLogix platform. This module provides six isolated input channels, allowing for precise temperature measurement in industrial environments where electrical isolation is required to prevent ground loops and signal interference. It is engineered to support a variety of RTD sensor types, including 100, 200, 500, and 1000 Ohm Platinum sensors, offering 16-bit resolution for accurate data acquisition.
Features
- Six isolated RTD input channels for enhanced signal integrity.
- 16-bit resolution for high-precision temperature monitoring.
- Compatible with common Platinum RTD standards (100, 200, 500, 1000 Ohm).
- Designed for seamless integration into the ControlLogix backplane.
- Robust construction for demanding industrial automation applications.
Technical Specifications
| Model |
1756-IR6I |
| Input Channels |
6 Isolated RTD |
| Resolution |
16-bit |
| Power Dissipation (Max) |
4.3 Watts |
| Backplane Current (24V) |
125 mA |
| Off-State Input Current |
2.75 mA |
| Manufacturer |
Allen-Bradley |
Installation Guidelines
- Ensure the ControlLogix chassis is powered down before inserting or removing the module to prevent electrical damage.
- Verify that the module is fully seated in the chassis slot and secured with the top and bottom latches.
- Use shielded twisted-pair cabling for RTD connections to minimize electromagnetic interference (EMI).
- Maintain proper grounding practices for the chassis and field wiring to ensure the effectiveness of the channel isolation.
- Ensure adequate airflow within the cabinet to stay within the module's operating temperature limits.
FAQ
What types of RTD sensors are compatible with the 1756-IR6I?
This module is compatible with 100, 200, 500, and 1000 Ohm Platinum RTD sensors.
Is the 1756-IR6I electrically isolated?
Yes, the module features six isolated input channels, which help protect the system from potential ground loop issues and common-mode noise.
