{"product_id":"allen-bradley-1746-hsce2-high-speed-input-module-heavy-duty","title":"Allen-Bradley 1746-HSCE2 High-Speed input module - Heavy-Duty","description":"\u003ch2\u003eProduct Introduction\u003c\/h2\u003e\u003cp\u003eWhen high-frequency counting and precise position monitoring are critical in industrial automation, the Allen-Bradley 1746-HSCE2 provides a reliable solution. Part of the SLC 500 series, this multi-channel high-speed input module counts in both directions and handles up to 1 MHz input frequency. Its intelligent design processes signals independently to reduce CPU load, making it ideal for demanding applications like conveyor speed monitoring or encoder feedback.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications Breakdown\u003c\/h2\u003e\u003cp\u003eThe 1746-HSCE2 offers six differential inputs (A1, B1, Z1, A2, B2, Z2) with a voltage range of 4.2–12 VDC and 10–30 VDC, supporting both 5 V and 24 V nominal supplies. Key parameters include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum pulse width:\u003c\/strong\u003e 475 ns\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum phase separation:\u003c\/strong\u003e 200 ns\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum input frequency:\u003c\/strong\u003e 1 MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane current (5 V):\u003c\/strong\u003e 250 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpdate time:\u003c\/strong\u003e 1.5 ms\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe module features eight outputs—four virtual and four real—with a sourcing output voltage of 5–30 VDC. Its thermal cut-out protection prevents damage from overloads or short circuits by shutting down channels if temperature exceeds limits.\u003c\/p\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe 1746-HSCE2 excels in applications that demand fast, accurate counting and position tracking. Use it for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging lines:\u003c\/strong\u003e Count packages with single-ended or quadrature encoders, leveraging the 1 MHz input frequency for high-speed production.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachine tool monitoring:\u003c\/strong\u003e Monitor spindle speed and linear position with differential inputs to maintain precision.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial handling:\u003c\/strong\u003e Track conveyor belt motion using two quadrature counters, with the Z input storing or resetting counter data for accurate positioning.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eInstall the 1746-HSCE2 in any SLC 500 chassis slot. Use the 1746-RT25G I\/O connection cable to link inputs and outputs. For low-frequency signals, avoid false pulses by routing input cables away from noise sources and using shielded twisted-pair wiring. The module automatically detects pulse direction and supports up to four single-ended or two quadrature counters. Configure counting modes (linear or ring) via the SLC 500 processor.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Troubleshooting\u003c\/h2\u003e\u003cp\u003eRoutine inspection of the 1746-HSCE2 ensures long-term reliability. Check for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal cut-out activation:\u003c\/strong\u003e If the module shuts down unexpectedly, allow it to cool; verify load currents remain below the maximum 1.0 A per output channel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise issues:\u003c\/strong\u003e Low-frequency signals may pick up high-frequency noise. Use ferrite beads or additional filtering on input lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput overload:\u003c\/strong\u003e Ensure total output current per module does not exceed 2.0 A at 40°C or 1.5 A at 60°C. The thermal overload protection resets automatically after cooling.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor persistent problems, verify backplane isolation (1000 V tested) and that the module is securely seated in the chassis.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing the Allen-Bradley 1746-HSCE2, confirm compatibility with your SLC 500 CPU and required input count. The module supports up to four pulse counters or two quadrature counters with 24-bit resolution (±8,388,607 counts). UBEST Automation stocks genuine 1746-HSCE2 modules with verified specifications, offering reliable support for your automation needs.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44403696730211,"sku":"1746-HSCE2","price":297.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1746-HSCE2_3_94134de9-0eff-40c6-8012-df359cbef1e0.jpg?v=1785005067","url":"https:\/\/www.plcsourcepro.com\/products\/allen-bradley-1746-hsce2-high-speed-input-module-heavy-duty","provider":"PLC Source PRO","version":"1.0","type":"link"}