{"product_id":"omron-cj1w-tc101-cj-series-temperature-control-unit","title":"Omron CJ1W-TC101 CJ Series Temperature Control Unit","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eManaging up to four high-precision closed-loop PID thermal processes, the Omron CJ1W-TC101 is a high-density, CJ Series Special I\/O module engineered for direct interface with platinum resistance thermometers. This multi-loop module consolidates the functionality of four discrete temperature controllers into a single PLC slot, reducing panel footprint and wiring overhead. Equipped with a advanced \u003cstrong\u003e2-PID (two-degree-of-freedom)\u003c\/strong\u003e control algorithm, it minimizes overshoot while maintaining robust disturbance rejection. Its direct integration into the CJ-series backplane enables high-speed data access to process variables, set points, and manipulated variables without complex ladder communication, making it ideal for precision-critical heating and cooling applications.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFour Closed-Loop Control Channels:\u003c\/strong\u003e Operates four independent loops simultaneously from a single, compact module.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlatinum Resistance Thermometer Inputs:\u003c\/strong\u003e Supports direct connections to Pt100 and JPt100 RTD sensors without external converters.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2-PID Control Algorithm:\u003c\/strong\u003e Features advanced two-degree-of-freedom PID control to suppress thermal overshoot during startup and step changes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNPN Open Collector Outputs:\u003c\/strong\u003e Equipped with open collector control outputs suitable for driving solid-state relays (SSRs) or digital indicators.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuto-Tuning and Self-Tuning:\u003c\/strong\u003e Built-in optimization algorithms dynamically calculate proportional, integral, and derivative constants on-site.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRun\/Stop Control:\u003c\/strong\u003e Allows individual or global loop enablement directly through PLC memory allocation tables.\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: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlastic Extrusion and Blow Molding:\u003c\/strong\u003e Precise multi-zone barrel temperature control to guarantee material viscosity consistency.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackaging Equipment:\u003c\/strong\u003e High-speed thermal sealing bars requiring fast recovery times and minimal temperature droop.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSemiconductor Processing:\u003c\/strong\u003e Environmental chamber and wafer thermal conditioning systems demanding tight tolerances.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFood \u0026amp; Beverage Pasteurization:\u003c\/strong\u003e Reliable multi-point thermal monitoring and control adhering to food safety regulations.\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;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eSpecification\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: 8px; font-weight: bold;\"\u003eModule Classification\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eCJ-Series Special I\/O Unit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNumber of Control Loops\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e4 loops\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eCompatible Sensor Inputs\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003ePlatinum Resistance Thermometers (Pt100, JPt100), 3-wire\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eControl Output Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eNPN Open Collector (100 mA max at 24 VDC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eSampling Period\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e500 ms (for all 4 loops combined)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eMeasurement Accuracy\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e+\/-0.3% of PV or +\/-0.8 degC (whichever is larger) +\/-1 digit max\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eInternal Current Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e5 VDC at 250 mA max (supplied via backplane)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eExternal Power Supply\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e24 VDC +10%\/-15%, 80 mA max\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eIsolation Method\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003ePhotocoupler isolation between input terminals and PLC internal circuits\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eOmron Corporation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eJapan\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0.35 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e15.0 cm x 12.0 cm x 5.0 cm\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\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe CJ1W-TC101 utilizes an 18-point detachable terminal block. The standard mapping for the 4-channel platinum resistance thermometer inputs and NPN outputs is structured as follows:\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eTerminal Pin\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eAssignment \/ Signal Function\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eTerminal Pin\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eAssignment \/ Signal Function\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: 8px; font-weight: bold;\"\u003eA1\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 1 RTD Input (A)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB1\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 3 RTD Input (A)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eA2\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 1 RTD Input (B)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB2\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 3 RTD Input (B)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eA3\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 1 RTD Input (B')\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB3\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 3 RTD Input (B')\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eA4\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 2 RTD Input (A)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB4\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 4 RTD Input (A)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eA5\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 2 RTD Input (B)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB5\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 4 RTD Input (B)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eA6\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 2 RTD Input (B')\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB6\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 4 RTD Input (B')\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eA7\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 1 NPN Output (+)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB7\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 3 NPN Output (+)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eA8\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 2 NPN Output (+)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB8\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop 4 NPN Output (+)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eA9\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eOutput Common (0V)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB9\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eOutput Common (0V)\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-TC101 is designed for 3-wire RTDs (Pt100 and JPt100). If your system utilizes thermocouples (such as Type K, J, or T), you must specify the \u003cstrong\u003eCJ1W-TC001\u003c\/strong\u003e thermocouple model instead. For loops requiring PNP (source) open collector outputs rather than NPN (sink) outputs, evaluate the \u003cstrong\u003eCJ1W-TC102\u003c\/strong\u003e. These modules are hot-swappable only when the rack is entirely de-energized, and they maintain register mapping compatibility when moving from CJ1G\/H CPUs to CJ2M\/H processors.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo prevent measurement error caused by unequal wire resistance, all three lead wires for each RTD must have identical lengths, gauge thicknesses, and physical routing. Avoid running RTD sensor lines in the same wire duct as 480 VAC motor power leads or high-speed VFD cables, as high-frequency electromagnetic noise will cause raw temperature readings to spike or drift, leading to false integral windups in the 2-PID loop.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen configuring the unit for the first time, use the Omron CX-Programmer IO Table setting interface to define input ranges and sensor types. Enabling the \u003cstrong\u003eAuto-Tuning (AT)\u003c\/strong\u003e function requires that the process loop is in a stable, cold state. Running auto-tuning during a fluctuating process will result in calculated PID parameters that are too aggressive, causing severe hunting at the set point.\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=\"margin: 0; font-weight: bold; color: #9b2c2c;\"\u003eCRITICAL WARNING: ELECTRICAL HAZARD\u003c\/p\u003e\n  \u003cp style=\"margin: 0.5rem 0 0 0; color: #9b2c2c; font-size: 0.95rem;\"\u003eAlways disconnect the main supply voltage to the PLC rack and all external 24 VDC auxiliary loops prior to mounting, removing, or wiring the terminal block of the module. Failure to de-energize equipment can cause permanent Damage to the internal analog inputs or result in unpredictable PLC CPU bus faults.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 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;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"margin: 0; color: #2d3748;\"\u003eMount the CJ1W-TC101 module onto the CJ-series backplane by securely engaging the bottom hook and pressing the top hook inward until it clicks into position.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 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;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"margin: 0; color: #2d3748;\"\u003eSet the Unit Number rotary dials on the front panel of the module to assign memory allocation blocks in the CPU (each unit requires two unit numbers).\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 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;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"margin: 0; color: #2d3748;\"\u003eConnect the three RTD wires to the detachable terminal block as mapped. Connect the external 24 VDC auxiliary power supply to terminals A9 and B9.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 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;\"\u003e4\u003c\/div\u003e\n    \u003cp style=\"margin: 0; color: #2d3748;\"\u003eSecurely tighten all terminal block screws to a torque of 0.4 N-m to prevent loose contact faults under high-vibration conditions.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":53077922021739,"sku":"CJ1W-TC101","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/CJ1W-TC101-jp5ht4vzdgl.png?v=1775733548","url":"https:\/\/www.plcprotech.com\/products\/omron-cj1w-tc101-cj-series-temperature-control-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}