Description
Description
The Allen-Bradley 1756-A7 is a 7-slot chassis designed for the ControlLogix platform. This chassis serves as the physical foundation for mounting ControlLogix modules, providing the necessary backplane communication and power distribution for I/O, communication, and processor modules within an industrial automation system.
Features
- Provides 7 dedicated slots for modular ControlLogix components.
- Supports high-speed backplane communication for seamless data exchange between modules.
- Robust mechanical design for secure mounting in standard industrial enclosures.
- Optimized for efficient power distribution across all installed modules.
Technical Specifications
| Model |
1756-A7 |
| Slots |
7 |
| Power Dissipation (Max) |
5 W |
| Operating Temperature |
0 to 60 degC (32 to 140 degF) |
| Storage Temperature |
-40 to +85 degC (-40 to +185 degF) |
| Relative Humidity |
5 to 95% (noncondensing) |
| Backplane Current @ 1.2V DC |
1.5 A |
| Backplane Current @ 3.3V DC |
4 A (per slot max) |
| Backplane Current @ 5.1V DC |
15 A (total) / 6 A (per slot max) |
| Backplane Current @ 24V DC |
2.8 A (per slot max) |
Installation Guidelines
- Ensure the chassis is mounted on a flat, stable surface within an industrial enclosure to prevent mechanical stress.
- Maintain adequate clearance around the chassis to allow for proper airflow and cooling, adhering to the specified operating temperature range.
- Always disconnect power before installing or removing modules from the chassis backplane to prevent electrical damage.
- Ensure the chassis is properly grounded in accordance with local electrical codes to minimize EMI and protect against surges.
- Verify that all modules are fully seated and secured using the integrated module locking mechanisms.
FAQ
Is this chassis compatible with all ControlLogix modules? Yes, the 1756-A7 is designed to support standard ControlLogix modules that conform to the 1756 form factor.
What is the maximum power dissipation for this unit? The maximum power dissipation for the 1756-A7 chassis is 5 W.
