Catalogue - Product overview - Electrocraft - (Version JPG)

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Stepper motor, Asynchronous motor, Stepper motor driver, Brushless DC motor, Brushless motor

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NEMA 17 Brushless DC Servo Motor

Features

■ No brushes or commutator

Electrical Ratings


■ Ball bearing	Parameter	Symbol	Units	DB17EDB	DB17FDB	DB17GDB
construction	Cont. Stall Torque¹	Tc	oz-in N-m	7.5 0.05	8 0.06	10 0.07
■ Dynamically balanced	Peak Torque²	Tp	oz-in N-m	18 0.13	26 0.18	33 0.23
rotors	Motor Constant	Km	oz-in/Vwatt N-m/Vwatt	1.9 0.013	2.5 0.017	3.1 0.022
■ Low audible and magnetic noise	Elec. Time Constant	Te	msec	0.22	0.24	0.29
■ Low audible and magnetic noise	Mech. Time Constant	Tm	msec	9.09	6.64	5.14
■ High-speed operation	Rotor Inertia	J	oz-in-sec²gm-cm²	0.00028 19.8	.00035 24.7	.00042 29.7
■ Compatible with all	Thermal Resistance	Rth	°C/watt	6.0	5.8	5.6
three-phase brushless DC motor amplifiers	Thermal Resistance
	Weight	W	oz Kg	9 0.25	11 0.31	13 0.36
	Motor Length	L	inch mm	2.4 61.0	2.7 68.6	3.0 76.2
*T\/niral Annliratinnc**	# of Poles	—	—	8	8	8

Winding Data

■ Centrifuges

■ Bar code readers

■ Film transport

■ Machine tools

■ Robotics

■ Semiconductor equipment

■ Gyroscopes

■ Conveyors

■ Paper feed

■ X-Y positioning

■ Light industrial


Parameter	Symbol	Units	DB17EDB				DB17FDB				DB17GDB
Parameter	Symbol	Units	-10	-11	-12	-13	-10	-11	-12	-13	-10	-11	-12	-13
Design Voltage	V	volts	24	48	90	160	24	48	90	160	24	48	90	160
Cont. Stall Current¹	lc	amperes	1.4	0.7	0.4	0.2	1.5	0.8	0.4	0.2	1.7	0.8	0.4	0.2
Peak Current²	lp	amperes	3.6	1.9	1.1	.6	4.4	2.3	1.4	.8	4.7	2.6	1.5	.9
Voltage Constant	Ke	V/kRPM	3.7	6.8	12.2	20.7	4.4	8.2	14.1	24.0	5.2	9.5	16.6	27.7
±10%	Ke	V/rad/sec	0.035	0.065	0.117	0.198	0.042	0.078	0.134	0.230	0.049	0.090	0.159	0.265
Torque Constant	Kt	oz-in/amp	5.0	9.3	16.5	28.0	5.9	11.1	19	32.5	7.0	12.8	22.5	37.5
±10%	Kt	N-m/amp	0.035	0.065	0.116	0.198	0.042	0.078	0.134	0.229	0.049	0.090	0.159	0.265
Resistance ±10%	Rm	Ohms	6.9	23.7	75.4	217.0	5.8	19.4	57.8	169.0	5.1	17.1	52.7	146.3
Inductance ±30%	Lm	mH	1.3	8.0	13.9	40.1	1.3	4.7	13.8	40.5	1.5	5.0	15.5	43.1

NOTES: Motors are available with different windings and mechanical modifications to meet specific applications. Contact the factory for technical and engineering assistance.

¹ Continuous rating based on 25°C ambient temperature, winding temperature rise of 100°C and motor mounted to a 6x6x% inch aluminum heat sink.

10 second at 25° C ambient, 100°C winding temperature. ¹ Inductance bridge measurement method @ 1kHz.

Solutions in motion

Eastern Mr Deviceslnc.

4 1 Progress Drive, Dover, New Hampshire 03820-5449 USA, (603) 742-3330, Fax: (603) 742-9080, www.eadmotors.com

Product overview - Electrocraft - #4

Stepper motor, Asynchronous motor, Stepper motor driver, Brushless DC motor, Brushless motor