Page 806 - Mechatronics with Experiments

5 VDC 5 6

Stepper motor To stepper motor common

1 2 3 4
1N4744A or 1N3024
Phase A Phase C Phase B Phase D

16 15 14 13 12 11 10 9
Out 1 Out 2 Out 3 Out 4 Out 5 Out 6 Out 7 Diodes
ULN2003A IC

IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 IN 7 GND
GND
1 2 3 4 5 6 7 8

4 MHz

experiment.

18 17 16 15 14 13 12 11 10
Out 2 Out 1 OSC2 OSC1 +5 V C B A Run control

EDE1200 motor

Out 3 Out 4 +5 V +5 V GND Free spin Direction Half stepping Step stepper the

1 2 3 4 5 6 drivers 7 8 9 for diagram

Port B, Pin 2 = 1, Enable motor Port B, Pin 1 = 1, Clockwise Pin 1 = 0, Counter-Clockwise Port B, Pin 0 = 1, Normal stepping Pin 0 = 0, Half-stepping Port B, Pin 3, Step pulses Circuit 11.29:

5 VDC FIGURE

792