{"product_id":"omron-cpm1a-20cdr-d-micro-programmable-controller-cpm1a-series","title":"Omron CPM1A-20CDR-D Micro Programmable Controller CPM1A Series","description":"\u003cp\u003eConfigured for discrete instruction processing and high-speed signal execution in standalone automation panels, the Omron CPM1A-20CDR-D (CPM1A-20CDR-D Micro Programmable Controller) provides direct physical\/electrical execution across integrated DC inputs and relay outputs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Identifier Matrix\u003c\/strong\u003e\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eComponent Variable\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDesignation \/ Specification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Model\u003c\/td\u003e\n\u003ctd\u003eCPM1A-20CDR-D\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\u003eSystem Platform\u003c\/td\u003e\n\u003ctd\u003eCPM1A Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Classification\u003c\/td\u003e\n\u003ctd\u003eMicro Programmable Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware Configuration\u003c\/td\u003e\n\u003ctd\u003e12x 24 VDC Inputs \/ 8x Relay Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cstrong\u003eHardware Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cfigure class=\"table\"\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\u003eCPM1A-20CDR-D\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\u003e0.30 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e9.0 cm x 8.6 cm x 5.0 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e14.0 cm x 12.0 cm x 8.0 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\u003e6 W max at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e24 VDC (+10% \/ -15%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Terminals\u003c\/td\u003e\n\u003ctd\u003e12 points (24 VDC Sink\/Source)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Terminals\u003c\/td\u003e\n\u003ctd\u003e8 points (Relay outputs, 2 A at 250 VAC \/ 24 VDC max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal I\/O Count\u003c\/td\u003e\n\u003ctd\u003e20 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgram Capacity\u003c\/td\u003e\n\u003ctd\u003e2048 words\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Memory (DM)\u003c\/td\u003e\n\u003ctd\u003e1024 words\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh-Speed Counter Input\u003c\/td\u003e\n\u003ctd\u003e1 point (5 kHz max single-phase)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cstrong\u003eBackplane Bus Velocity and I\/O Density Scaling\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Omron CPM1A-20CDR-D utilizes an integrated CPU and I\/O expansion bus structure designed for rapid local I\/O update execution. Signal routing across the CPU core and dedicated expansion connector maintains consistent cycle times during full 20-point updates. High-speed input channels process up to 5 kHz input frequencies for direct encoder interface tasks without adding scan overhead. The architecture scales I\/O density by connecting CPM1A expansion I\/O units, preserving deterministic ladder logic processing up to maximum expansion limits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackage Contents \u0026amp; Ordering Information\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1x Omron CPM1A-20CDR-D Main Controller Unit\u003c\/li\u003e\n\u003cli\u003e1x Screw Terminal Block Cover\u003c\/li\u003e\n\u003cli\u003e1x Hardware Installation Sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eField Installation Guidelines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Snap the base unit onto a standard 35 mm DIN rail (IEC 60715) or secure via M4 mounting screws through the integral mounting feet. Maintain 50 mm clearance around the housing for thermal ventilation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Connect 24 VDC main supply power to the designated L1\/N (DC+, DC-) terminals. Use copper conductors rated for 75 deg C with a wire cross-section of 0.5 to 1.25 mm sq.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay Protection:\u003c\/strong\u003e Install inductive surge suppressors (diodes for DC loads, RC snubbers for AC loads) directly across external field load coils to prevent contact pitting and back-EMF feedback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding \u0026amp; Shielding:\u003c\/strong\u003e Connect the Functional Earth (FE) terminal to an earth ground maintaining less than 100 ohms loop impedance. Secure signal cable shields with 360-deg grounding clamps.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the primary power supply voltage required for the CPM1A-20CDR-D?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe controller operates on an external 24 VDC input supply (acceptable voltage range 20.4 VDC to 26.4 VDC).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow many physical inputs and outputs are built directly into the base unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CPM1A-20CDR-D features 20 total integrated I\/O points, divided into 12 DC inputs and 8 relay outputs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan the CPM1A-20CDR-D be hot-swapped during live backplane operation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, power must be disconnected from the controller and field wiring before mounting or servicing the device.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum switching capacity of the integrated relay outputs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach relay output supports up to 2 A per point at 250 VAC or 24 VDC max resistive load.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat high-speed counter input frequency is supported by the CPU?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe onboard high-speed counter input processes single-phase pulses at a maximum frequency of 5 kHz.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow is program data protected during a power failure event?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUser program memory is retained in non-volatile flash ROM, while battery-backed RAM preserves data memory areas.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat gauge wire should be used for power supply and field terminal block connections?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse stranded or solid copper wire with cross-sectional areas between 0.5 mm sq and 1.25 mm sq (AWG 20 to AWG 16).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat grounding specification applies to the installation of this controller?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Functional Earth terminal must be connected to an earth ground with a ground resistance of less than 100 ohms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":47306599366829,"sku":"CPM1A-20CDR-D","price":214.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/CPM1A-20CDR-D-V1_3.jpg?v=1789363380","url":"https:\/\/www.maxwellplc.com\/products\/omron-cpm1a-20cdr-d-micro-programmable-controller-cpm1a-series","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}