{"product_id":"h7cx-a4sd-n-omron-h7cx-series-multifunction-counter-tachometer","title":"H7CX-A4SD-N Omron H7CX Series Multifunction Counter\/Tachometer","description":"\u003cp\u003eThe \u003cstrong\u003eOmron H7CX-A4SD-N\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eH7CX-A4SD\u003c\/strong\u003e Multifunction Counter\/Tachometer, operates as a dedicated hardware component for high-speed pulse count processing and solid-state switching execution within H7CX Series control loops.\u003c\/p\u003e\n\u003ch3\u003ePart Number Structure \u0026amp; Functional Nomenclature\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eH7CX\u003c\/strong\u003e: Omron DIN 48 x 48 mm panel-mount digital counter and tachometer series designation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA\u003c\/strong\u003e: Standard functional unit configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4\u003c\/strong\u003e: 4-digit negative transmissive LCD display module (-999 to 9999 display range).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e: Transistor solid-state switching output profile.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eD\u003c\/strong\u003e: Low-voltage DC operational supply rating (12 to 24 VDC).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eN\u003c\/strong\u003e: Updated hardware architectural revision featuring enhanced display contrast and depth profile.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Terminals (None)\u003c\/strong\u003e: Direct rear-panel screw terminal wiring block connection interface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-Stage Setting (None)\u003c\/strong\u003e: Single-stage threshold preset evaluation configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical \u0026amp; Environmental Parameters\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eH7CX-A4SD-N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eOmron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e4.8 cm x 6.5 cm x 4.8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-10 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e2.5 W max at 12 to 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e12 to 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Type\u003c\/td\u003e\n\u003ctd\u003e4-digit negative transmissive LCD with LED backlight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eNPN\/PNP transistor output (30 VDC max, 100 mA max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Connections\u003c\/td\u003e\n\u003ctd\u003eRear screw terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePresets\u003c\/td\u003e\n\u003ctd\u003e1-stage limit preset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFirmware Flash Compatibility \u0026amp; Deterministic Input Sampling\u003c\/h3\u003e\n\u003cp\u003eThe digital processing module utilizes high-speed internal sampling hardware to capture input frequencies up to 10 kHz without missing pulse counts. Embedded firmware flash architecture maintains constant register timing to execute logic evaluation between measured count totals and programmed setpoints. Onboard non-volatile EEPROM memory safeguards counter registers and system parameters during power removal without requiring external battery backup. System boot verification routines check parameter flash sector checksums prior to enabling transistor outputs to prevent erratic switching during low-voltage transients.\u003c\/p\u003e\n\u003ch3\u003eStandard Shipping Deliverables\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Omron H7CX-A4SD-N Multifunction Counter Unit\u003c\/li\u003e\n\u003cli\u003e1 x Panel Mounting Adapter Ring\u003c\/li\u003e\n\u003cli\u003e1 x Waterproof Rubber Sealing Gasket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Wiring Methods \u0026amp; Panel Mounting Directives\u003c\/h3\u003e\n\u003ch4\u003eEnclosure Door Cutout Assembly\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCut a 45 mm x 45 mm square opening in the enclosure door; fit the rubber gasket around the outer bezel to maintain IP66 front-face ingress protection.\u003c\/li\u003e\n\u003cli\u003eSlide the counter body into the cutout from the front and push the rear mounting adapter forward until the locking ratchets seat firmly against the panel wall.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eElectrical Wiring \u0026amp; Noise Suppression\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eConnect 12 to 24 VDC power lines to the designated rear screw terminals using insulated fork or ring crimps; tighten terminal screws to 0.5 N-m.\u003c\/li\u003e\n\u003cli\u003eUse shielded twisted-pair cables for high-frequency pulse inputs, keeping signal lines routed away from AC power lines and drive outputs to prevent noise interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWhat supply voltage limits apply to the D configuration suffix?\u003c\/p\u003e\n\u003cp\u003eThe unit operates exclusively on 12 to 24 VDC control power and cannot be powered directly from AC mains.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow does the solid-state transistor output handle load switching?\u003c\/p\u003e\n\u003cp\u003eThe transistor output handles up to 30 VDC at 100 mA, making it ideal for high-speed switching to PLC inputs or DC relays.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow are configuration settings protected during an unexpected power drop?\u003c\/p\u003e\n\u003cp\u003eInternal EEPROM flash memory automatically retains configuration settings, prescaling values, and current counts indefinitely without a battery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat maximum display value is supported on the 4-digit screen?\u003c\/p\u003e\n\u003cp\u003eThe 4-digit display supports values from -999 to 9999, with configurable decimal point positions for scaled process variables.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat terminal style is used on the back of the H7CX-A4SD-N?\u003c\/p\u003e\n\u003cp\u003eThe unit features integrated rear screw terminals that accept standard M3.5 crimp connectors directly without an external socket base.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow is front panel protection maintained in dusty or wet environments?\u003c\/p\u003e\n\u003cp\u003eInstalling the unit with the included rubber packing gasket provides IP66 protection against dust ingress and low-pressure water jets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan this unit be configured for tachometer rate measurement modes?\u003c\/p\u003e\n\u003cp\u003eYes, internal parameters allow selection between preset counter, totalizing counter, and tachometer frequency modes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the transistor output support both NPN and PNP sensor wiring?\u003c\/p\u003e\n\u003cp\u003eYes, the input logic is switchable between NPN and PNP modes via internal DIP switches or menu parameters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":47306593337517,"sku":"H7CX-A4SD-N","price":213.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/H7CX-A4SD-N_1_50648820-cfef-4137-b361-a439c4242b92.jpg?v=1789998924","url":"https:\/\/www.maxwellplc.com\/ru\/products\/h7cx-a4sd-n-omron-h7cx-series-multifunction-counter-tachometer","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}