Product Details
Overview
The 1771-QB (1771-QB) is a specialized single-slot motion control module designed for the PLC-5® Universal I/O chassis. It provides precision closed-loop linear positioning by interfacing directly with high-accuracy transducers. This module is engineered to handle complex hydraulic or pneumatic servo positioning tasks by calculating position data every 2 milliseconds. By offloading motion intensive calculations from the main processor, the 1771-QB (1771-QB) ensures high-speed response times and deterministic performance for industrial machinery.
Detailed Technical Specifications
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Module Type: Linear Positioning Control
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System Platform: PLC-5 Universal I/O
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Sampling Rate: 2 ms per axis update period
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Backplane Power Consumption: 1.1A typical / 1.6A maximum at 5V DC
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Supported Transducers: MTS Temposonics, Balluff BTL, and Norstat GYRG (Linear Displacement)
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Analog Output Resolution: 12-bit
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Analog Servo Outputs: +/-10V DC (10 mA), +/-20 mA (600 ohms), +/-50 mA (240 ohms), +/-100 mA (240 ohms)
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Discrete Input Logic: 10-30V DC for Logic 1; 0-4V DC for Logic 0
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Discrete Input Current: 8 mA at 12V DC; 16 mA at 24V DC
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Discrete Sourcing Outputs: 100 mA maximum per output (ON state)
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Circuit Protection: 3 Amp, 250V Normal-Blow Fuse
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Required Wiring Arm: 1771-WN or 1771-WNF (40 terminals)
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Maximum Wire Size: 14 AWG stranded with 3/64 inch insulation
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Physical Weight: 6.00 lbs (2.72 kg)
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Chassis Space: 1 Slot
Positioning Capabilities and Connectivity
The 1771-QB (1771-QB) is built for versatility in feedback integration, supporting multiple magnetostrictive transducer brands. It features auxiliary digital inputs and outputs for home indexing, end-of-travel limits, and drive enable signals. The high-resolution 12-bit analog output allows for exceptionally smooth control of servo valves. For remote applications, the module is compatible with the 1771-PSC cable assembly, ensuring signal integrity over a 5.5 ft distance between the module and its interface.
Engineering FAQ
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Which transducers are compatible with the 1771-QB? The 1771-QB (1771-QB) is primarily designed to interface with magnetostrictive linear displacement transducers (LDTs) that utilize specialized pulse-based or start/stop signals, such as those from MTS Temposonics or Balluff.
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Can this module control more than one axis? The 1771-QB (1771-QB) is a single-axis positioning module. For multi-axis synchronized movement, multiple modules must be installed and coordinated via the PLC-5 backplane.
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Is the 1771-QB hot-swappable? While the 1771 chassis is rugged, it is standard engineering practice to remove power from the I/O chassis before replacing the 1771-QB (1771-QB) to prevent damage to the sensitive analog servo outputs.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Understanding Types of Noise in Electronic Circuits and Control Systems
Signal integrity directly determines measurement accuracy and loop stability across industrial automation environments. Electronic noise introduces unwanted stochastic interference into analog loops, sensor feedback lines, and digital fieldbus networks. Understanding how intrinsic electronic noise and external electromagnetic interference manifest allows control engineers to optimize signal conditioning and shield sensitive instrumentation effectively.
Why 24V DC Power Supplies Standardize Modern Industrial Automation
Industrial control cabinets worldwide rely on 24V DC as the universal power standard for field instrumentation, sensors, and controllers. Walk into any manufacturing plant, and you will find PLCs, human-machine interfaces (HMIs), and smart actuators running on extra-low voltage DC. Standardizing on 24V DC enhances operational safety, lowers cabinet footprint, and maintains steady control performance across factory networks.
Essential Motion Control Commands: A Practical Guide for Engineers
Automation engineers often rely on precise position and speed control to drive modern factory machinery. Modern industrial systems, such as Programmable Logic Controllers (PLCs) and Distributed Control Systems (DCS), depend heavily on standardized motion instructions. Mastering these commands ensures operational safety, protects mechanical components, and optimizes cycle times across production lines.