{"product_id":"kv-ad40g-keyence-kv-series-a-d-conversion-module-in-stock","title":"KV-AD40G Keyence KV Series A\/D Conversion Module In Stock","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eKV-AD40G\u003c\/strong\u003e\u003c\/span\u003e is a high-speed analog-to-digital expansion unit engineered for the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eKeyence KV Series\u003c\/strong\u003e\u003c\/span\u003e PLC architecture. Featuring 4 differential analog input channels, the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eKV-AD40G\u003c\/strong\u003e\u003c\/span\u003e delivers up to 1\/60,000 resolution and a rapid conversion speed down to 50 µs per 2 channels using its hardware data buffering mechanism. Photocoupler isolation between CPU and channel groups protects control circuitry against harsh industrial electrical noise.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Architecture \u0026amp; MECE Parameters\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe operational specifications of the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eKeyence KV-AD40G\u003c\/strong\u003e\u003c\/span\u003e module are classified below across core engineering vectors:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdentity \u0026amp; System Integration\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: \u003cstrong\u003eKeyence\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eModel: \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eKV-AD40G\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eSeries: \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eKeyence KV Series\u003c\/strong\u003e\u003c\/span\u003e PLC system\u003c\/li\u003e\n\u003cli\u003eUnit Type: High-precision A\/D conversion module\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel \u0026amp; Measurement Range\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eAnalogue Input Points: 4 points (Differential inputs)\u003c\/li\u003e\n\u003cli\u003eVoltage Input Ranges: -10 to +10 V (0.33 mV resolution, 1\/60,000), 0 to 10 V (0.33 mV resolution, 1\/30,000), 0 to 5 V (0.17 mV resolution, 1\/30,000), 1 to 5 V (0.17 mV resolution, 1\/24,000)\u003c\/li\u003e\n\u003cli\u003eCurrent Input Ranges: 0 to 20 mA (0.67 µA resolution, 1\/30,000), 4 to 20 mA (0.67 µA resolution, 1\/24,000)\u003c\/li\u003e\n\u003cli\u003eInput Impedance: Voltage mode: 5 MΩ; Current mode: 250 Ω\u003c\/li\u003e\n\u003cli\u003eAbsolute Maximum Inputs: Voltage: ±15 V; Current: 30 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSampling Speed \u0026amp; Conversion Precision\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eStandard Conversion Speed: 80 µs \/ 2 channels, 160 µs \/ 4 channels\u003c\/li\u003e\n\u003cli\u003eHigh-Speed Buffer Speed: 50 µs \/ 2 channels, 100 µs \/ 4 channels\u003c\/li\u003e\n\u003cli\u003eConversion Precision (25 °C): Voltage: ±0.05% of F.S.; Current: ±0.05% of F.S.\u003c\/li\u003e\n\u003cli\u003eConversion Precision (0 to 50 °C): Voltage: ±0.1% of F.S.; Current: ±0.1% of F.S.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise Isolation \u0026amp; Protection Circuitry\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSystem Insulation: Photocoupler isolation between unit and CPU bus\u003c\/li\u003e\n\u003cli\u003eInter-Channel Isolation: Photocoupler isolation between CH_A (0, 1) and CH_B (0, 1)\u003c\/li\u003e\n\u003cli\u003eDiagnostics: Hardware wire breaking detection for 1-5V and 4-20mA loops\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Buffering \u0026amp; External Trigger\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eData Buffering Period: 50 µs to 3 s sampling interval\u003c\/li\u003e\n\u003cli\u003eBuffer Memory Capacity: Maximum 10,000 words per channel\u003c\/li\u003e\n\u003cli\u003eSynchronous Sampling: Hardware sync between CH_A0-CH_B0 and CH_A1-CH_B1\u003c\/li\u003e\n\u003cli\u003eTrigger Input Signal: 1 point, NPN open collector \/ no-voltage contact (Min. ON voltage: 1 V, Max. OFF current: 0.1 mA)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn-Board Signal Processing Functions\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eMath Filters: Scaling, specification count average, time-based average, moving average, primary delay filter\u003c\/li\u003e\n\u003cli\u003eData Calibration: Data offset adjustment, zero shift, zero clip, peak value lock, valley value lock, digital comparator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical \u0026amp; Physical Properties\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eInternal Current Draw: 220 mA or less\u003c\/li\u003e\n\u003cli\u003eUnit Weight: Approximately 0.19 kg (190 g)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTarget Equipment \u0026amp; Practical Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe high sampling speed and differential architecture make the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eKeyence KV-AD40G\u003c\/strong\u003e\u003c\/span\u003e ideal for precision industrial equipment:\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eIndustrial Domain\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003eEquipment Integration\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003eSignal Processing Advantage\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSemiconductor \u0026amp; Inspection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLaser displacement sensing, wafer thickness measurement rigs\u003c\/td\u003e\n\u003ctd\u003eHigh resolution (1\/60,000) captures sub-micron variations cleanly.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHigh-Speed Packaging\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInline checkweighers, tension control rolls, pressure monitoring\u003c\/td\u003e\n\u003ctd\u003e50 µs sampling buffer logs rapid load cell spikes without missing data.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMetal Stamping \u0026amp; Pressing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHydraulic pressure logging, peak force monitoring presses\u003c\/td\u003e\n\u003ctd\u003ePeak\/valley locking records max press force directly in hardware.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProcess Automation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChemical flow tracking, 4-20mA temperature transmitters\u003c\/td\u003e\n\u003ctd\u003eWire break detection alerts the PLC when field loops lose continuity.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eDiagnostic Capabilities \u0026amp; Commissioning Guidelines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware Wire-Break Detection:\u003c\/strong\u003e Configured for 4-20 mA or 1-5 V loops. Triggers a diagnostic flag when input drop below valid operational levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Data Buffering Logic:\u003c\/strong\u003e Stores up to 10,000 words per channel locally. Prevents CPU scan time delays from dropping high-speed analog points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Delay Filtering:\u003c\/strong\u003e Filters out electrical ripple and mechanical vibration at the hardware module level prior to PLC logic evaluation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eLogistics, Warranty \u0026amp; Package Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12-Month Coverage Warranty:\u003c\/strong\u003e Every \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eKeyence KV-AD40G\u003c\/strong\u003e\u003c\/span\u003e includes a full 12-month quality guarantee.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRapid Express Shipping:\u003c\/strong\u003e Orders process within 24 to 48 hours with global express options via FedEx, UPS, or DHL.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Checklist:\u003c\/strong\u003e Includes 1 x \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eKV-AD40G\u003c\/strong\u003e\u003c\/span\u003e analog unit and 1 x terminal block connector.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB's Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eDuring a field retrofit on a high-speed metal extrusion line, hydraulic pressure transients were causing intermittent product defects. Standard PLC scan times of 5 ms missed 30 ms pressure spikes completely. Our engineering team deployed the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eKeyence KV-AD40G\u003c\/strong\u003e\u003c\/span\u003e and enabled its 50 µs data buffering mode tied to a physical external trigger. The unit successfully captured high-speed pressure transients locally into its 10,000-word buffer. This allowed the client to adjust valve timing precisely without upgrading the primary CPU controller.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSelection Matrix \u0026amp; Field FAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKV Series Analog Unit Selection Matrix:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSelect \u003cstrong\u003eKV-AD40G\u003c\/strong\u003e for ultra-high-precision 1\/60,000 differential voltage\/current inputs requiring data buffering and hardware channel isolation.\u003c\/li\u003e\n\u003cli\u003eSelect \u003cstrong\u003eKV-AD40\u003c\/strong\u003e for standard resolution multi-channel analog acquisition tasks without specialized synchronous hardware buffering.\u003c\/li\u003e\n\u003cli\u003eSelect \u003cstrong\u003eKV-DA40\u003c\/strong\u003e when converting digital PLC register values into analog control outputs for VFDs or servo drives.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the external trigger input optimize high-speed measurement on the \u003cspan style=\"color: #0056b3;\"\u003eKV-AD40G\u003c\/span\u003e?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The NPN external trigger initiates data logging directly on hardware interrupt. It bypasses CPU scan delays to capture precise analog waveforms during high-speed events.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the benefit of differential input wiring over single-ended analog inputs on this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Differential inputs measure the voltage difference between two signals rather than signal to ground. This cancels out common-mode electrical noise in industrial environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can CH_A and CH_B channels sample analog data at the exact same instant?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes. Hardware synchronization maintains tight data alignment between CH_A0-CH_B0 and CH_A1-CH_B1 during high-speed sampling modes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I eliminate signal fluctuation caused by machine vibration without slowing down PLC logic?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Enable the moving average or primary delay filter functions built into the module. The hardware cleans up raw signal noise before updating output registers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What cable precaution should be taken when installing current loops on the \u003cspan style=\"color: #0056b3;\"\u003eKeyence KV-AD40G\u003c\/span\u003e?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Always use twisted-pair shielded cabling grounded at a single point. Ensure current inputs stay strictly below the 30 mA maximum limit to prevent internal shunt damage.\u003c\/p\u003e","brand":"Keyence","offers":[{"title":"Default Title","offer_id":47537747820726,"sku":"KV-AD40G","price":104.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/KV-AD40G-1.jpg?v=1789975694","url":"https:\/\/www.plcsparehub.com\/products\/kv-ad40g-keyence-kv-series-a-d-conversion-module-in-stock","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}