maxon

EC 45 flat 42.8 mm, brushless, 70 Wattmaxon flat EC motorConnector:39-28-1083 MolexM 1:2Stock programStandard programSpecial program (on request)Article Numberswith Hall sensorsMotor Data (provisional)Values 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 2May 2012 edition / subject to change397172 402685 402686 40268724 30 36 486110 6230 6330 3440234 194 166 48.14860 4990 5080 2540128 112 108 1343.21 2.36 1.93 0.9351150 1040 1000 87939.5 25.8 20.7 6.9785 84 83 840.608 1.16 1.74 6.890.463 0.691 0.966 5.8536.9 45.1 53.3 131259 212 179 72.74.26 5.44 5.85 3.828.07 10.3 11.1 7.24181 181 181 181Specifications Operating Range CommentsThermal data17 Thermal resistance housing-ambient 3.25 K/Wn [rpm]Continuous operation18 Thermal resistance winding-housing 4.22 K/WIn observation of above listed thermal resistance19 Thermal time constant winding 30.4 s70 W(lines 17 and 18) the maximum permissible winding20 Thermal time constant motor 162 s397172temperature will be reached during continuous21 Ambient temperature -40 ... +100°Coperation at 25°C ambient.22 Max. permissible winding temperature +125°C= Thermal limit.Mechanical data (preloaded ball bearings)23 Max. permissible speed 10000 rpm24 Axial play at axial load < 4.0 N 0 mm> 4.0 N 0.14 mm25 Radial play preloaded26 Max. axial load (dynamic) 3.8 N27 Max. force for press fits (static) 50 N(static, shaft supported)1000 N28 Max. radial loading, 7.5 mm from flange 21 NOther specifications29 Number of pole pairs 830 Number of phases 331 Weight of motor 141 gValues listed in the table are nominal.ConnectionPin 1 Hall sensor 1*Pin 2 Hall sensor 2*Pin 3 V Hall 4.5 ... 18 VDCPin 4 Motor winding 3Pin 5 Hall sensor 3*Pin 6 GNDPin 7 Motor winding 1Pin 8 Motor winding 2*Internal pull-up (7 … 13 k) on pin 3Wiring diagram for Hall sensors see p. 29CableConnection cable Universal, L = 500 mm 339380Connection cable to EPOS, L = 500 mm 35404525 50 75 125 1501.0 2.0 3.0 4.0Short term operationThe motor may be briefly overloaded (recurring).Assigned power ratingmaxon Modular System Overview on page 16 - 21Planetary Gearhead42 mm3 - 15 NmPage 243Spur Gearhead45 mm0.5 - 2.0 NmPage 244OptionWith Cable and Connector(Ambient temperature -20 ... +100°C)Recommended Electronics:ESCON 50/5 Page 292DECS 50/5 297DEC 24/3 298DEC Module 50/5 299EPOS2 Module 36/2 312EPOS2 24/2 312EPOS2 24/5 313EPOS2 P 24/5 316EPOS3 70/10 EtherCAT 319Notes 20maxon EC motor197