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Allen Bradley PLC 5 1771-LC3

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1771-LC3

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The 1771-LC3 loop controller from Allen Bradley's PLC 5 series operates with an input voltage of 120 volts AC and consumes 30 VA of power. It features a convenient built-in keypad alongside an LCD display, which showcases a dual-line alphanumeric readout and a 50-segment bar graph for enhanced visual feedback.

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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 1771-LC3

ManufacturerAllen Bradley
Product TypeLoop Controller
Product LinePLC 5
Part Number1771-LC3
Weight10.00 lbs (4.54 kg)
Input Voltage120V AC
Power Consumption30 VA
Voltage Range102 - 132V AC
Minimum Frequency47 Hz
Maximum Frequency63 Hz
Operator InterfaceBuilt-in keypad and LCD screen
Display Type2-line Alphanumeric LCD with 50-segment bar graph
Minimum Operating Temperature0°C
Maximum Operating Temperature55°C
Minimum Storage Temperature-40°C
Maximum Storage Temperature85°C
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The 1771-LC3 part, part of the Allen Bradley PLC 5 lineup, serves as a dedicated loop controller that monitors and regulates various processes. This component is specified to accept an input voltage of 120VAC and has a power requirement of 30 VA. It is designed to handle voltage variations between 102 VAC and 132 VAC efficiently. The operating frequency range spans from a minimum of 47 Hz to a maximum of 63 Hz, ensuring compatibility with different systems and applications.

An operator-friendly interface is provided by built-in features including a keypad and an LCD screen. The LCD is particularly noteworthy, offering a two-line alphanumeric display that, combined with a 50-segment bar graph, helps users read information at a glance. For temperature tolerances, the unit operates safely within ambient temperatures ranging from 0°C to 55°C, thus facilitating use in diverse environments. In terms of storage, it can endure temperatures as low as -40°C and as high as 85°C, allowing it to be kept in a variety of conditions without risk of damage.