Description
Description
The Allen-Bradley 1746-A2 is a two-slot modular chassis designed for the SLC 500 control platform. This compact unit serves as an efficient solution for small-scale I/O expansion or remote rack applications. By providing the necessary backplane communication and power distribution, the 1746-A2 ensures seamless integration of SLC 500 modules into your industrial control network.
Features
- Two-slot configuration for flexible I/O density.
- Compatible with SLC 500 processors or remote I/O adapters (e.g., 1747-ASB, 1747-ACN) in Slot 0.
- Supports system expansion up to a maximum of 30 slots when daisy-chained with additional chassis.
- Robust backplane design supporting high current capacity for demanding I/O requirements.
- Panel-mount design for secure installation in enclosures.
Applications
This chassis is frequently deployed in distributed control architectures where space is limited. It is ideal for local expansion of small machine control systems or as a secondary rack in remote I/O configurations, allowing for modular growth of the SLC 500 system.
Technical Specifications
| Brand |
Allen-Bradley |
| Product Line |
SLC 500 |
| Slot Capacity |
2 Slots |
| Max Backplane Current (5.1V DC) |
10 Amps |
| Max Backplane Current (24V DC) |
2.88 Amps |
| Mounting |
Panel Mount |
| Operating Temperature |
0 to 60 degC |
| Storage Temperature |
-40 to 85 degC |
| Relative Humidity |
5 to 95% (Non-condensing) |
Installation Guidelines
- Ensure the chassis is mounted to a clean, flat, and vibration-resistant surface within an industrial enclosure.
- Verify that the power supply is disconnected before installing or removing any modules from the chassis slots.
- Maintain adequate clearance around the chassis to facilitate proper ventilation and prevent overheating.
- When using multiple chassis, ensure that interconnect cables are properly seated and secured to prevent intermittent backplane communication errors.
- Maintain proper grounding practices to protect against electromagnetic interference (EMI) and electrostatic discharge (ESD).
FAQ
Can I use this chassis for a standalone processor? Yes, the 1746-A2 is designed to house an SLC 500 processor or an I/O adapter in the first slot (Slot 0).
How many chassis can be connected together? You can interconnect up to three chassis in a single local system, providing a total capacity of up to 30 slots.
