maxon

EC 22 22 mm, brushless, 50 Watt, sterilizablemaxon special programA with hall sensorsB sensorlessM 1:1Stock programStandard programSpecial program (on request)Motor DataA with hall sensorsB sensorlessValues at nominal voltage1 Nominal voltage V2 No load speed rpm3 No load current mA4 Nominal speed rpm5 Nominal torque (max. continuous torque) mNm6 Nominal current (max. continuous current) A7 Stall torque mNm8 Starting current A9 Max. efficiency %Characteristics10 Terminal resistance phase to phase 11 Terminal inductance phase to phase mH12 Torque constant mNm/A13 Speed constant rpm/V14 Speed/torque gradient rpm/mNm15 Mechanical time constant ms16 Rotor inertia gcm 2Article Numbers266520 264443275312 25416832 3241100 23800364 14138900 2140028.6 34.94.18 2.82652 41188.2 32.188 870.363 0.9970.0490 0.1477.39 12.81290 74663.4 58.13.08 2.824.63 4.63Specifications Operating Range CommentsThermal data17 Thermal resistance housing-ambient 7.0 K/W18 Thermal resistance winding-housing 1.0 K/W19 Thermal time constant winding 5.06 s20 Thermal time constant motor 355 s21 Ambient temperature -20…+100°C22 Max. permissible winding temperature +125°CMechanical data (preloaded ball bearings)23 Max. permissible speed 50000 rpm24 Axial play at axial load < 5 N 0 mm> 5 N max. 0.14 mm25 Radial play preloaded26 Max. axial load (dynamic) 4 N27 Max. force for press fits (static) 53 N(static, shaft supported)250 N28 Max. radial loading, 5 mm from flange 16 NOther specifications29 Number of pole pairs 130 Number of phases 331 Weight of motor 130 g364Values listed in the table are nominal.Connection A motor (Cable AWG 22)red Motor winding 1black Motor winding 2white Motor winding 3Connection A sensors (Cable AWG 26)green V Hall 4.5 ... 24 VDCblue GNDred/grey Hall sensor 1black/grey Hall sensor 2white/grey Hall sensor 3Connection B (Cable AWG 22)red Motor winding 1black Motor winding 2white Motor winding 3Wiring diagram for Hall sensors see p. 27maxon special programn [rpm]ApplicationMedicine / surgery / chemicalsPlanetary Gearheadsterilizable22 mm0.5 - 2.0 NmPage 229Continuous operationIn observation of above listed thermal resistance(lines 17 and 18) the maximum permissible windingtemperature will be reached during continuous operationat 25°C ambient.= Thermal limit.Short term operationThe motor may be briefly overloaded (recurring).Assigned power ratingSterilization informationThe motor can be sterilized at least 100 times in autoclave.No need to dismantle.Hand tools that can be sterilized, such as bone saw, Sterilization with steambone drilling and grinding machineDermatological and dental tools Temperature +134°C ± 4°CInfusion pumps Compression pressure up to 2.3 barECG Rel. humidity 100%Therapy aid, analysis and dialysis equipment Cycle length 20 minutesmaxon Modular System Overview on page 16 - 21Recommended Electronics:ESCON 50/5 Seite 292DECS 50/5 297DEC 24/3 298DEC 50/5 299DECV 50/5 305Notes 20May 2012 edition / subject to change