Product Details
Product Description
Allen-Bradley Counter / Flowmeter Input Module – Model: 1746sc-CTR4 The 1746sc-CTR4 is a specialized input module for the Allen-Bradley SLC 500 series, designed to handle counter and flowmeter applications. It supports multiple input types including single-ended counters, quadrature encoding, and enable control lines. With high-speed counting capability, selectable filters, and precise accuracy, this module is ideal for industrial measurement and monitoring tasks.
Technical Specifications
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Manufacturer: Allen-Bradley (Rockwell Automation)
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Product Line: SLC 500
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Model: 1746sc-CTR4
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Type: Counter / Flowmeter Input Module
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Number of Inputs: 4 differential counter inputs
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Quadrature Encoding: 2 channels supported
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Enable Control Lines: 2 channels
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Input Voltage Ranges: AC (50 mV–75 V peak), DC (5 V, 12 V, 24 V)
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Input Frequency: Up to 50 kHz (AC and DC)
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Counter Speed: 0–50 kHz
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Maximum Count Value: ±32K or ±8M depending on mode
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Channel Update Time: 4 ms per channel
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Input Impedance: 25 kΩ
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Logic Levels: VIL ≤ 1.0 V, VIH ≥ 3.5 V, Vmax 75 V
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Backplane Current Draw: 225 mA @ 5 VDC
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Power Dissipation: 1.75 W max
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Filters: Digital filter (50 kHz default, 30 kHz option), Analog filter (15 kHz)
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Accuracy:
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Count mode: ±1 count
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Instantaneous rate: ±1% @ 50 kHz, ±0.001% @ 1 Hz
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Average rate: ±1 Hz
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Data Format:
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Counter mode: -8,388,608 to +8,388,607
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Rate mode: -32,768 to +32,767
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Fault Detection: Over-range and under-range status bits for all modes
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Slot Width: Single slot
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Weight: 0.38 lbs (0.17 kg)
Application Scenarios
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Flow measurement in industrial processes
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High-speed counting applications in automation systems
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Quadrature encoder feedback for motion control
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Machine-level monitoring requiring precise rate and count accuracy
FAQ
Q: How many counter inputs does the 1746sc-CTR4 provide? A: Four differential counter inputs.
Q: Does it support quadrature encoding? A: Yes, two channels of quadrature encoding are supported.
Q: What is the maximum input frequency? A: Up to 50 kHz for both AC and DC signals.
Q: What controllers are compatible? A: It is designed for the Allen-Bradley SLC 500 series.
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
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