Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-L32E |
| Brand | Allen-Bradley |
| Product Type | Programmable Automation Controller |
| Product Line | CompactLogix |
| UPC | 612598313938 |
| User Memory | 512 KB |
| Maximum Number of I/O Modules | 16 |
| Maximum Number of I/O Banks | 3 |
| Backplane Current at 5 VDC | 330 mA |
| Backplane Current at 24 VDC | 40 mA |
| Power Dissipation | 2.61 W |
| Power Supply Distance Rating | 4 |
| Isolation Voltage | 30 V continuous |
| Compatible Battery | 1769-BA |
| Listed Weight | 0.3 kg |
| Estimated Shipping Dimensions | 13.2 x 8.8 x 6.7 cm |
Controller and I/O Configuration
The 1769-L32E runs the control program and exchanges data with supported CompactLogix I/O modules. Its 512 KB user memory provides storage for controller logic and related project data, subject to the memory requirements of the application.
The controller supports up to 16 I/O modules across a maximum of three I/O banks. When planning a configuration, verify the selected modules, expansion cables, power supply capacity, and system layout against the applicable hardware documentation.
Power and Electrical Requirements
The controller draws backplane current from both the 5 VDC and 24 VDC supplies. These values are relevant when checking the available power budget and compatibility with the installed hardware. Its listed power dissipation is 2.61 W.
The 30 V continuous isolation rating is an electrical specification, not an operating voltage. The power supply distance rating of 4 should also be considered when checking the controller’s position relative to the power supply in the intended configuration.
Battery and Maintenance
The specified compatible battery is the 1769-BA. Confirm the battery condition and applicable replacement procedure during maintenance, particularly when controller memory retention is required. Follow the controller documentation for battery handling and replacement conditions.
Frequently Asked Questions
Q: How many I/O modules can the 1769-L32E support?
A: The listed maximum is 16 I/O modules across up to three I/O banks. Confirm the complete expansion configuration against the system hardware requirements before installation.
Q: Which battery is specified for the 1769-L32E?
A: The supplied specifications identify the 1769-BA battery as compatible. Verify the controller documentation for the applicable replacement procedure.
Q: What should be checked before replacing an existing 1769-L32E?
A: Verify the full model number, controller memory requirements, I/O configuration, power supply capacity, communication connections, and project compatibility. The physical fit alone does not establish that a replacement controller is suitable.
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