{"product_id":"omron-cj1w-da021-cj-series-analog-output-module","title":"Omron CJ1W-DA021 CJ Series Analog Output Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eRegulating analog actuators and control loops within Sysmac PLC architectures is the primary functional role of the \u003cstrong\u003eOmron CJ1W-DA021\u003c\/strong\u003e. This CJ-series Special I\/O Unit provides two high-resolution analog output channels, supporting standard industrial current and voltage ranges. Built with internal photocoupler isolation between the controller backplane and the external interface, this module prevents field electrical noise from corrupting core logic operations. The physical connection is established through an 18-point detachable terminal block with M3 screws, facilitating rapid wiring, commissioning, and simplified hot-swap unit replacement during field maintenance.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-Channel Output:\u003c\/strong\u003e Supports two independent analog outputs configurable for voltage or current loops.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Signal Ranges:\u003c\/strong\u003e Compatible with standard industry spans including 1 to 5 V, 0 to 5 V, 0 to 10 V, -10 to 10 V, and 4 to 20 mA.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Resolution:\u003c\/strong\u003e Operates at a maximum conversion resolution of up to 40,000 for precise variable control.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhotocoupler Isolation:\u003c\/strong\u003e Secure isolation barrier between the internal PLC controller backplane and external output circuitry.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaintenance-Friendly Terminal Block:\u003c\/strong\u003e Detachable 18-point block with M3 screws allows replacement without disconnecting field wiring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable Speed Drive Regulation:\u003c\/strong\u003e Direct frequency and speed commanding for industrial inverters and VFDs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProportional Valve Control:\u003c\/strong\u003e Modulating flow rates, pneumatic pressures, and hydraulic positions in process loops.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHVAC Damper Actuation:\u003c\/strong\u003e Positioning air dampers and control valves based on real-time environmental demands.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExternal Chart Recording:\u003c\/strong\u003e Routing physical process variables to analog instrumentation, displays, or recording units.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eValue \/ Specification\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eOmron\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eModel Code\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCJ1W-DA021\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eProduct Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCJ-series Special I\/O Unit (Analog Output Module)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eNumber of Outputs\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e2 channels\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eOutput Ranges (Voltage)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e1 to 5 V, 0 to 5 V, 0 to 10 V, -10 to 10 V\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eOutput Ranges (Current)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e4 to 20 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eMax Resolution\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e1\/40,000 (Set data: 16-bit binary)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eOutput Impedance (Voltage)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.5 Ohm max.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eMax Output Current (Voltage)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e12 mA (for 1 point)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eMax Permissible Load Resistance\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e600 Ohm (for current output)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eBackplane Current Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e5 VDC, 120 mA max.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eExternal Power Supply Requirements\u003c\/td\u003e\n        \u003ctd style=\"padding: 24 VDC +10% \/ -15% (140 mA max.)\"\u003e24 VDC +10% -15%, 140 mA max. (Inrush: 20 A max., 1 ms min. pulse)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eIsolation Method\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003ePhotocoupler isolation between I\/O and controller backplane (No isolation between channels)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eExternal Connections\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e18-point detachable terminal block (M3 screws)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eUnit Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.15 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eShipping Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e1.50 kg (including secure export packaging)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eTerminal Assignment\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eSignal Name\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eFunctional Circuit Assignment\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eV OUT 1\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eVoltage Output 1\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003ePositive voltage output connection for Channel 1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eI OUT 1\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCurrent Output 1\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003ePositive current output connection for Channel 1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCOM 1\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eOutput Common 1\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCommon return terminal for Channel 1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eV OUT 2\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eVoltage Output 2\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003ePositive voltage output connection for Channel 2\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eI OUT 2\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCurrent Output 2\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003ePositive current output connection for Channel 2\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCOM 2\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eOutput Common 2\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCommon return terminal for Channel 2\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e24 VDC\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eExternal Power Supply (+)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003ePositive supply terminal for external 24 VDC input\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0 VDC\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eExternal Power Supply (-)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eNegative\/Ground reference for external 24 VDC input\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe CJ1W-DA021 serves as a direct drop-in replacement for older CJ1W-DA021 revision versions. When planning retrofits from older Sysmac platforms (such as the C200H series), direct logic mapping is required because of backplane addressing variations. Ensure your CJ1G, CJ1H, or CJ2H CPU unit has been allocated corresponding DM and CIO Area channels using CX-Programmer or Sysmac Studio software to match the unit's rotary physical address switches.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eA key layout constraint is that \u003cstrong\u003eno isolation exists between output channels 1 and 2\u003c\/strong\u003e. Both channels share a common internal ground point. If you connect this module to two field devices that are separately grounded at different physical points, ground loops can form, causing signal drift or module damage. To prevent this, always route outputs to devices with internally isolated inputs, or add physical external loop isolators between the module and any non-isolated field targets.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eEnsure that the external 24 VDC power supply is fully active \u003cem\u003ebefore\u003c\/em\u003e or simultaneously with the PLC CPU backplane startup. If the external 24 VDC drops below the -15% tolerance limit (20.4 VDC), the module's orange status indicator will trip, and an I\/O verification error will register at the processor level. Always use shielded, twisted-pair cables for analog routing and ground the shield only at the PLC chassis ground terminal to avoid ambient RF noise infiltration.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cp style=\"color: #9b2c2c; font-weight: bold; margin: 0 0 0.5rem 0;\"\u003eCRITICAL WARNING\u003c\/p\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eDisconnect all electrical power to the PLC rack and field-side circuits before physically attaching or removing this Special I\/O Unit. Failure to completely de-energize the assembly can destroy internal components or cause erratic PLC CPU behavior.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 0.75rem;\"\u003e1\u003c\/div\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003eSet the unit number rotary dials on the front panel of the CJ1W-DA021 to the desired address (0 to 95) prior to mounting. Avoid duplicating unit numbers across the PLC backplane.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 0.75rem;\"\u003e2\u003c\/div\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003eAlign the upper and lower track hooks of the module with the adjacent rack unit, slide the unit securely into position, and engage the locking slide clamps on the top and bottom of the CJ-series rack.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 0.75rem;\"\u003e3\u003c\/div\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003eWire the 18-point detachable terminal block with crimped M3 terminals, ensuring positive 24 VDC external supply connections are completed before powering on the system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":53077933982059,"sku":"ÿCJ1W-DA021","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/cj1wda021-gyvql1m5mf5.png?v=1775733549","url":"https:\/\/www.plcprotech.com\/products\/omron-cj1w-da021-cj-series-analog-output-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}