The Allen-Bradley 1746-A13 is a 13-slot modular chassis designed for the SLC 500 programmable logic controller system. This chassis provides the physical mounting and electrical backplane communication required to support up to 13 I/O or specialty modules. It serves as the backbone for the control system, distributing power and data signals across the installed modules within an SLC 500 rack configuration.
Features
Supports up to 13 modules in a single rack configuration.
Robust mechanical design for panel-mount installation.
Integrated backplane for high-speed communication between the processor and I/O modules.
Compatible with the full range of Allen-Bradley 1746 series I/O and specialty modules.
Technical Specifications
Product Model
1746-A13
Series
SLC 500
Slot Count
13 Slots
Mounting Type
Panel Mount
Backplane Current (5.1V DC)
10A
Backplane Current (24V DC)
2.88A
Operating Temperature
0 degC to +60 degC (+32 degF to +140 degF)
Storage Temperature
-40 degC to +85 degC (-40 degF to +185 degF)
Installation Guidelines
Ensure the chassis is mounted on a flat, rigid surface using the provided mounting holes to prevent mechanical stress.
Maintain adequate clearance around the chassis to allow for proper airflow and cooling, as the SLC 500 system relies on convection.
Always power down the system before inserting or removing any I/O modules from the chassis slots to prevent electrical damage or bus errors.
Ensure the chassis is properly grounded to the enclosure backplane to minimize the effects of electromagnetic interference (EMI).
Verify that the power supply module is correctly seated in the leftmost slot and that all other modules are fully engaged with the backplane connectors.
FAQ
Is this chassis compatible with all SLC 500 modules?
The 1746-A13 is designed to support standard 1746 series I/O modules. Please verify your specific module power requirements against the backplane current capacity of the chassis to ensure the total load does not exceed 10A at 5.1V DC or 2.88A at 24V DC.
Can this chassis be mounted vertically?
While panel mounting is standard, ensure that vertical orientation does not obstruct the ventilation slots or exceed the specified operating temperature range due to reduced cooling efficiency.
