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Allen Bradley PLC 5 1772-LR

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1772-LR

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The 1772-LR CPU module from Allen Bradley operates at an AC voltage of 120V and is designed for use in the leftmost slot of the I/O chassis. It provides multiple operational modes including run, program, and test, facilitating versatile control and programming options.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 1772-LR

ManufacturerAllen Bradley
Product TypeCPU Module
Product LinePLC 5
Part Number1772-LR
Weight37.25 lbs (16.90 kg)
Slot RequirementLeftmost I/O Chassis Slot
Operating ModesRun, Prog., and Test Modes
Voltage TypeAC Voltage
Voltage Rating120V AC
Status Indicators3 Indicators
Indicator TypesMemory Fault, "Proc. Run," and "Standby Low" Indicators
Block Transfer ApplicationsSupported
Arithmetic OperationsSupported
I/O Forcing ApplicationsSupported
Input MonitoringSupported
Operating Temperature0 to 60 degrees Celsius
Ambient Relative Humidity5 to 95%
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The Allen Bradley 1772-LR is a CPU module tailored for the PLC 5 series. It is specifically designated for installation in the leftmost I/O chassis slot, ensuring optimal functionality within the system setup. This module operates at an AC voltage rating of 120 volts. Users can choose among several operating modes, including run, programming, and testing, streamlining various aspects of automation processes.

This unit features three distinct status indicators: one indicating memory faults, another report for processing execution, and a final one for standby status, allowing operators to maintain awareness of the module's operational conditions. The 1772-LR is engineered to support block transfer operations and has capabilities for arithmetic calculations, enhancing its versatility in processing tasks.

Furthermore, the module supports I/O forcing applications and includes input monitoring functionalities, empowering users to manage inputs dynamically. It is suitable for deployment in environments with temperatures ranging from 0 to 60 degrees Celsius and can function in environments with relative humidity levels between 5% and 95%. This broad operating range makes the 1772-LR adaptable to various industrial settings.