Tallinn Science Park Tehnopol, Mäealuse st. 4, Tallinn
12618, Estonia Phone: + 372 6559914,
e-mail: sale@smd.ee
url: http://smd.ee
1. Product designation
This device is a stepper motor SM4247 with an integrated control unit SMD-1.6 mini with protection
IP65. Stepper motor is intended for transformation of control signals in angular movement of the rotor with its
fixation in the given position without feedback devices. Integrated control unit SMD-1.6 mini is an electronic
device mounted on the motor SM4247 housing and is intended for this motor control.
2. Technical characteristics Table 1. Technical characteristics.
Motor phase current, Amp 1.6
Holding torque, kgf∙cm
4.4
Protection class IP65
Rotor inertia, g∙cm
68
Microstepping modes 1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/128, 1/256
Power supply voltage, VDC stabilized 12 - 48
Max. radial force (20 mm from the flange), N 28
Max. axial force, N 10
Shaft radial play, no more, mm 0.02
Shaft axial play, no more, mm 0.08
Step angle accuracy ±5% relative to the whole step
Phase resistance, Ohm 0.8
Phase inductance, mH 3.5
Temperature Rise, °C 80
Average resource, hours 20000
1Holding torque – the motor is powered but doesn’t rotate
3. Control signals – oscillogram, schemes, connection diagrams
Img.1. «STEP» and «DIR» signals order and duration
