{"product_id":"emerson-epro-mms-6250-machine-monitoring-systems-shaft-position-monitor","title":"Emerson EPRO MMS 6250 Machine Monitoring Systems Shaft Position Monitor","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eEmerson EPRO MMS 6250\u003c\/strong\u003e is a shaft position monitor designed for measuring and protecting against inadmissible high axial displacements of turbine shafts. Operating as a microcontroller-based 3-channel measuring system, the \u003cstrong\u003eMMS 6250\u003c\/strong\u003e standardizes and processes differential input signals from eddy current sensors (such as PR 642x series) to evaluate axial shaft positions. The module incorporates dual redundant +24 VDC power supply inputs, an RS 232 front interface for computer configuration, an RS 485 bus interface for host communication, and optional PROFIBUS-DP connectivity via a front SUB-D socket. It features comprehensive internal module supervision, signal conditioning circuitry, six configurable binary 24 V voltage outputs, and two current outputs per channel (one electrically isolated) for integration into plant protection networks.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMicrocontroller-based 3-channel axial position measuring and protection system\u003c\/li\u003e\n\u003cli\u003eSupport for redundant +24 VDC power supply inputs decoupled via diodes\u003c\/li\u003e\n\u003cli\u003eSelf-test functions for internal electronic circuits, processor watchdog, and sensor signal lines\u003c\/li\u003e\n\u003cli\u003eTwo current outputs per channel (one electrically isolated from system ground)\u003c\/li\u003e\n\u003cli\u003eSix configurable 24 V binary function and alarm outputs\u003c\/li\u003e\n\u003cli\u003eRS 232 front connector for configuration via PC and RS 485 bus interface for host data exchange\u003c\/li\u003e\n\u003cli\u003eOptional PROFIBUS-DP interface via front-panel 9-pin SUB-D socket\u003c\/li\u003e\n\u003cli\u003eFront-panel SMB socket for decoupled sensor signal output\u003c\/li\u003e\n\u003cli\u003eHot-swap capability during system operation\u003c\/li\u003e\n\u003cli\u003ePassword protection per monitor for high operational safety\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTurbine shaft axial position displacement measurement and protection\u003c\/li\u003e\n\u003cli\u003ePower plant safety shut-off valve control integration\u003c\/li\u003e\n\u003cli\u003eReplacement and upgrade of mechanical position control and protection systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003cth\u003eOrder Number\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMMS 6250\u003c\/td\u003e\n\u003ctd\u003eShaft displacement monitor\u003c\/td\u003e\n\u003ctd\u003e9100-00057\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMMS 6250\/D\u003c\/td\u003e\n\u003ctd\u003eShaft displacement monitor with display\u003c\/td\u003e\n\u003ctd\u003e9100-00056\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMMS 6250D\/DP\u003c\/td\u003e\n\u003ctd\u003eShaft displacement monitor with display and Profibus DP\u003c\/td\u003e\n\u003ctd\u003e9100-00084\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMMS 6351\/00\u003c\/td\u003e\n\u003ctd\u003eBackplane for System DAPS\u003c\/td\u003e\n\u003ctd\u003e9100-00047\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMMS 6351\/10\u003c\/td\u003e\n\u003ctd\u003eBackplane for System DAPS AS\u003c\/td\u003e\n\u003ctd\u003e9100-00049\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMMS 6352\u003c\/td\u003e\n\u003ctd\u003e19 inch mounting frame\u003c\/td\u003e\n\u003ctd\u003e9100-00053\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMMS 6360\u003c\/td\u003e\n\u003ctd\u003eCable 25 pole SUB D 3 m\u003c\/td\u003e\n\u003ctd\u003e9510-00006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMMS 6362\u003c\/td\u003e\n\u003ctd\u003eCable 25 pole SUB D 0.5 m\u003c\/td\u003e\n\u003ctd\u003e9510-00015\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMMS 6363\u003c\/td\u003e\n\u003ctd\u003eProfibus cable 4 m\u003c\/td\u003e\n\u003ctd\u003e9510-00024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMMS 6361\u003c\/td\u003e\n\u003ctd\u003eScrew terminal 25 pol. SUB D\u003c\/td\u003e\n\u003ctd\u003e9100-00052\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMMS 6950\u003c\/td\u003e\n\u003ctd\u003eConfiguration kit\u003c\/td\u003e\n\u003ctd\u003e9510-00005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMMS 6354\u003c\/td\u003e\n\u003ctd\u003eSet of blind plates\u003c\/td\u003e\n\u003ctd\u003e9501-00005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBLE 008\u003c\/td\u003e\n\u003ctd\u003eBlind plate 8 TE\u003c\/td\u003e\n\u003ctd\u003e9501-00003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eEmerson \/ epro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Type\u003c\/td\u003e\n\u003ctd\u003eDifferential input, non-reactive, open-circuit and short-circuit proof\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e0 to 27.3 VDC (Limit range: 0 to 30 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 100 kOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasuring Error\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 1% of the measuring range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Signal Output (SENS)\u003c\/td\u003e\n\u003ctd\u003eSMB socket, voltage range 0 to 4.1 V (Sensor signal x 0.15), internal resistance 10 kOhm, load \u0026gt; 1 MOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Output 1 (Iout1)\u003c\/td\u003e\n\u003ctd\u003e0\/4 to 20 mA or 20 to 4\/0 mA, electrically isolated from system ground, accuracy +-1% full scale (16 bit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Output 2 (Iout2)\u003c\/td\u003e\n\u003ctd\u003e0\/4 to 20 mA or 20 to 4\/0 mA, referenced to system ground, accuracy +-1% full scale (16 bit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Supply Voltage\u003c\/td\u003e\n\u003ctd\u003e26.75 VDC, max. 38 mA, residual ripple \u0026lt; 20 mVss (at 20 mA), open and short-circuit proof\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBinary Outputs\u003c\/td\u003e\n\u003ctd\u003e6 outputs, +18 to 32 V (High state), 0 to +3.5 V (Low state), Iout max 25 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBinary Inputs\u003c\/td\u003e\n\u003ctd\u003eVoltage inputs +24 V, High: +13 to +32 V, Low: 0 to +3 V, input resistance 6.8 kOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Power Supply\u003c\/td\u003e\n\u003ctd\u003eRedundant +18 to 24 to 32 VDC (according to IEC 60654-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd\u003eMax. approx. 250 mA per card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront Panel Width\u003c\/td\u003e\n\u003ctd\u003e6 TE (approx. 30 mm) without display; 14 TE (approx. 71 mm) with display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePCB Format\u003c\/td\u003e\n\u003ctd\u003eEuro-Format (100 x 160 mm) according to DIN 41 494\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear Connector\u003c\/td\u003e\n\u003ctd\u003eDIN 41 612, design F 48 M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to +55 degC (max. +65 degC), reference temperature +23 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5 to 95%, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Resistance\u003c\/td\u003e\n\u003ctd\u003e0.15 mm amplitude (10 to 55 Hz), 19.6 m\/s2 acceleration (55 to 150 Hz) according to IEC-68-2 part 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Resistance\u003c\/td\u003e\n\u003ctd\u003ePeak acceleration 98 m\/s2, nominal duration 16 ms according to IEC-68-2 part 29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Class\u003c\/td\u003e\n\u003ctd\u003eIP 00 (Module), IP 21 (Front plate) according to DIN 40050\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure the module is installed into a compatible 19 inch mounting frame (MMS 6352) with an appropriate backplane (MMS 6351\/00 or MMS 6351\/10).\u003c\/li\u003e\n\u003cli\u003eConnect the dual redundant +24 VDC power supply inputs to ensure uninterrupted module operation.\u003c\/li\u003e\n\u003cli\u003eSecure all field wiring to the designated screw terminal blocks (MMS 6361) using shielded cabling to prevent signal interference.\u003c\/li\u003e\n\u003cli\u003eAdjust probe gap voltages and verify transducer supply parameters before enabling alarm outputs.\u003c\/li\u003e\n\u003cli\u003eUtilize the front RS 232 interface via mini DIN diode socket to perform initial configuration and parameter download using a compatible PC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCE\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Emerson","offers":[{"title":"Default Title","offer_id":52695191552363,"sku":"MMS6250","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/MMS-6250_001_1200x1200_83046725-c934-45b4-9653-75d0d9f4ec98.jpg?v=1786527867","url":"https:\/\/www.plcprotech.com\/products\/emerson-epro-mms-6250-machine-monitoring-systems-shaft-position-monitor","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}