{"product_id":"omron-cqm1-cpu43-ev1-cpu-unit-cqm1-series","title":"Omron CQM1-CPU43-EV1 CPU Unit CQM1 Series","description":"\u003cp\u003eConfigured for direct execution of stored program ladder logic and high-speed motion pulse handling in CQM1 system backplanes, the \u003cstrong\u003eOmron CQM1-CPU43-EV1\u003c\/strong\u003e (\u003cstrong\u003eCQM1-CPU43-EV1\u003c\/strong\u003e CPU Unit) provides direct physical\/electrical execution. It executes cyclic scan operations with direct output updating and immediate interrupt processing across up to 256 total I\/O points across a maximum of 11 expansion modules. The unit integrates dedicated pulse I\/O ports supporting high-speed encoder feedback inputs up to 50 kHz single-phase (25 kHz two-phase) and CW\/CCW pulse outputs up to 50 kHz for precision stepper and servo position loops.\u003c\/p\u003e\n\u003ch3\u003eTechnical Identifier Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Model\u003c\/strong\u003e: CQM1-CPU43-EV1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: Omron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CQM1 Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware Profile\u003c\/strong\u003e: CPU Unit with Built-in Pulse I\/O Ports\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl Method\u003c\/strong\u003e: Stored program method via cyclic scan and direct interrupt processing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003eCQM1-CPU43-EV1\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\u003e0.60 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e11.0 cm x 10.7 cm x 10.0 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e16.0 cm x 14.0 cm x 13.0 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5 VDC at 980 mA (internal backplane current draw)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Total I\/O Capacity\u003c\/td\u003e\n\u003ctd\u003e256 points (11 units max., up to 15 I\/O words total)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnboard CPU I\/O\u003c\/td\u003e\n\u003ctd\u003e16 DC input points (1 word)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstruction Set\u003c\/td\u003e\n\u003ctd\u003e137 instructions (14 basic, basic instruction execution time: 0.50 to 1.50 microseconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Memory (DM)\u003c\/td\u003e\n\u003ctd\u003e6,144 read\/write words (DM 0000 to DM 6143), 512 read-only words (DM 6144 to DM 6655)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEncoder Pulse Inputs\u003c\/td\u003e\n\u003ctd\u003e24 VDC (+\/-10%), Single-phase: 50 kHz, Two-phase: 25 kHz (A, B: 5 mA; Z: 12 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePulse Outputs\u003c\/td\u003e\n\u003ctd\u003eNPN open collector, CW\/CCW, 5 to 24 VDC (+\/-10%), 7 mA to 30 mA, 50 kHz max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Power Requirement\u003c\/td\u003e\n\u003ctd\u003e5 VDC (+\/-10%) 30 mA min. \/ 24 VDC (+10%\/-15%) 30 mA min.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Retention\u003c\/td\u003e\n\u003ctd\u003eBattery-backed RAM (5-year battery life independent of RTC presence)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Velocity and I\/O Density Scaling\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eOmron CQM1-CPU43-EV1\u003c\/strong\u003e controls backplane data bus operations via cyclic scanning supplemented by direct output refresh cycles and immediate interrupts. High-density I\/O expansion supports up to 11 total I\/O or Special I\/O modules constrained to a maximum of 15 I\/O words across the backplane bus. Built-in pulse I\/O hardware connects directly to the central processing pipeline, eliminating internal backplane communication latencies for position control functions. This architecture allows simultaneous reading of high-speed counter PVs (up to 50 kHz) and real-time updating of CW\/CCW pulse train outputs without interrupting execution cycles for ladder logic instructions.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents \u0026amp; Ordering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x Omron CQM1-CPU43-EV1 CPU Unit\u003c\/li\u003e\n\u003cli\u003e1x Installed Memory Backup Lithium Battery\u003c\/li\u003e\n\u003cli\u003e1x Protective Terminal Block Cover Assembly\u003c\/li\u003e\n\u003cli\u003e1x Installation Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting\u003c\/strong\u003e: Secure the CPU unit onto a standard 35 mm DIN rail or chassis panel. Maintain a minimum top and bottom clearance of 20 mm for heat dissipation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring\u003c\/strong\u003e: Route 24 VDC pulse input signal lines (Encoder A, B, Z) and NPN open collector output lines separately from high-voltage AC lines using shielded wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding\u003c\/strong\u003e: Wire the functional ground (FG) terminal directly to a low-impedance earth ground using a minimum 2.0 mm sq conductor. Keep ground resistance under 100 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding\u003c\/strong\u003e: Terminate pulse I\/O signal cable shields using 360-deg braid shielding clamps grounded directly to the panel backplate to minimize electromagnetic interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat action is required when the BAT ERR indicator illuminates on the CPU front panel?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eReplace the internal memory backup battery with a new unit within 1 week, ensuring the new battery is connected within 5 minutes of removal to preserve RAM contents.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum output frequency supported by the built-in pulse output ports?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe NPN open collector pulse outputs support up to 50 kHz maximum, or up to 20 kHz when directly driving stepping motor drives.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the ON and OFF voltage thresholds for the pulse input channels?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 24 VDC pulse inputs require an ON voltage of 20.4 VDC minimum and an OFF voltage of 4.0 VDC maximum.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow many total expansion modules can be connected to the CQM1-CPU43-EV1 CPU?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA maximum of 11 I\/O or Special I\/O modules can be attached, provided the total I\/O allocation does not exceed 15 words (256 points).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan the CQM1-CPU43-EV1 perform immediate output refreshing during program execution?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the CPU supports direct output updating and immediate interrupt processing outside standard end-of-scan refreshing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat internal memory areas are protected by the backup battery during power failure?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe holding bits (HR), auxiliary bits (AR), data memory (DM), counter preset\/present values, and real-time clock (RTC) data are retained.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current consumption of the CQM1-CPU43-EV1 from the internal 5 VDC backplane bus?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CPU module draws 980 mA from the internal 5 VDC backplane power supply rail.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat external power supply is required to drive the built-in pulse I\/O interface?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe pulse output interface requires an external power supply of 5 VDC (+\/-10%) at 30 mA minimum or 24 VDC (+10%\/-15%) at 30 mA minimum.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":47306626957485,"sku":"CQM1-CPU43-EV1","price":105.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/cqm1-cpu43-ev1_2.jpg?v=1789363702","url":"https:\/\/www.maxwellplc.com\/ru\/products\/omron-cqm1-cpu43-ev1-cpu-unit-cqm1-series","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}