Table 1: Winding lead polarities for two-phase stepping sequence
|
|
Winding 1
|
Winding 2
|
|
Step #
|
Lead A
|
Lead B
|
Lead A
|
Lead B
|
|
1
|
0
|
1
|
0
|
1
|
|
2
|
0
|
1
|
1
|
0
|
|
3
|
1
|
0
|
1
|
0
|
|
4
|
1
|
0
|
0
|
1
|
Table 2: Switch positions for two-phase stepping sequence
|
|
Winding 1
|
Winding 2
|
|
Step #
|
S1
|
S2
|
S3
|
S4
|
S1
|
S2
|
S3
|
S4
|
|
1
|
1
|
0
|
0
|
1
|
1
|
0
|
0
|
1
|
|
2
|
1
|
0
|
0
|
1
|
0
|
1
|
1
|
0
|
|
3
|
0
|
1
|
1
|
0
|
0
|
1
|
1
|
0
|
|
4
|
0
|
1
|
1
|
0
|
1
|
0
|
0
|
1
|
Table 3: Switch positions for two-phase stepping sequence for a unipolar motor
|
|
Winding 1
|
Winding 2
|
|
Step #
|
S1
|
S2
|
S1
|
S2
|
|
1
|
1
|
0
|
1
|
0
|
|
2
|
1
|
0
|
0
|
1
|
|
3
|
0
|
1
|
0
|
1
|
|
4
|
0
|
1
|
1
|
0
|
Table 4: Microcontroller digital outputs for two-phase stepping sequence for a unipolar motor
|
Step #
|
do1
|
do2
|
do3
|
do4
|
|
1
|
1
|
0
|
1
|
0
|
|
2
|
1
|
0
|
0
|
1
|
|
3
|
0
|
1
|
0
|
1
|
|
4
|
0
|
1
|
1
|
0
|