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24 483190 2080544 1352620 1620425 5175.84 2.214840 4530

70 21.184 85

0.343 2.280.264 2.570.5 217135 44

0.659 0.46221.1 14.83060 3060

M 1:2

323772 244879

May 2012 edition / subject to change maxon EC motor

Stock programStandard programSpecial program (on request)

Article Numbers

Specifications Operating Range Comments

n [rpm] Continuous operationIn observation of above listed thermal resistance (lines 17 and 18) the maximum permissible winding temperature will be reached during continuous operation at 25°C ambient.= Thermal limit.

Short term operationThe motor may be briefly overloaded (recurring).

Assigned power rating

maxon Modular System Overview on page 16 - 21

EC 90 flat ∅90 mm, brushless, 90 Watt

Motor DataValues at nominal voltage

1 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 W11 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 gcm2

Thermal data17 Thermal resistance housing-ambient 1.78 K/W18 Thermal resistance winding-housing 2.63 K/W19 Thermal time constant winding 46.6 s20 Thermal time constant motor 264 s21 Ambient temperature -40…+100°C22 Max. permissible winding temperature +125°C

Mechanical data (preloaded ball bearings)23 Max. permissible speed 5000 rpm24 Axial play at axial load < 15 N 0 mm

> 15 N 0.14 mm25 Radial play preloaded26 Max. axial load (dynamic) 12 N27 Max. force for press fits (static) 183 N

(static, shaft supported) 8000 N28 Max. radial loading, 7.5 mm from flange 60 N

Other specifications29 Number of pole pairs 1230 Number of phases 331 Weight of motor 600 g

Values listed in the table are nominal.

Connection Pin 1 Hall sensor 1 Pin 2 Hall sensor 2 Pin 3 VHall 4.5…18 VDC Pin 4 Motor winding 3 Pin 5 Hall sensor 3 Pin 6 GND Pin 7 Motor winding 1 Pin 8 Motor winding 2 Wiring diagram for Hall sensors see p. 29

Cable Connection cable Universal, L = 500 mm 339380 Connection cable to EPOS2, L = 500 mm 354045

Recommended Electronics:ESCON 50/5 Page 292DECS 50/5 297DEC Module 50/5 299DEC 70/10 305EPOS2 24/5 313EPOS2 50/5 313EPOS2 70/10 313EPOS2 P 24/5 316EPOS3 70/10 EtherCAT 319Notes 20

with Hall sensors

Planetary Gearhead∅52 mm4 - 30 NmPage 246

Connector: 39-28-1083 Molex

Encoder MILE800 - 3200 CPT,2 channelsPage 264

1206_EC_motor.indd 199 08.05.2012 13:26:25