Specification

[AP1034]
016003455-E-01 - 14 - 2016/06
10.3 Micro-Step Function

Step Sequence
Table 9. Setting Current Comparison of Excitation Modes
2 phase
(Full step)
1-2 phase
(1/2step)
W1-2 phase
(1/4step)
2W1-2 phase
(1/8step)
Phase1
Current
[%I
loadmax
]
Phase2
Current
[%I
loadmax
]
Step Angle
[°]
1
1
1
100
0
0.00
2
98
20
11.25
2
3
92
38
22.50
4
83
56
33.75
1
2
3
5
71
71
45.00
6
56
83
56.25
4
7
38
92
67.50
8
20
98
78.75
3
5
9
0
100
90.00
10
-20
98
101.25
6
11
-38
92
112.50
12
-56
83
123.75
2
4
7
13
-71
71
135.00
14
-83
56
146.25
8
15
-92
38
157.50
16
-98
20
168.75
5
9
17
-100
0
180.00
18
-98
-20
191.25
10
19
-92
-38
202.50
20
-83
-56
213.75
3
6
11
21
-71
-71
225.00
22
-56
-83
236.25
12
23
-38
-92
247.50
24
-20
-98
258.75
7
13
25
0
-100
270.00
26
20
-98
281.25
14
27
38
-92
292.50
28
56
-83
303.75
4
8
15
29
71
-71
315.00
30
83
-56
326.25
16
31
92
-38
337.50
32
98
-20
348.75
: Home micro-step position at Step Angle 45
°
Note 11. When the excitation mode is changed to a coarser mode, it is set to the closest position in the rotate
direction set by DIR signal. However, the motor could step-out or misstep depends on the operation state of
motor during switching time. The changing sequence of the excitation mode should be determined by adequate
evaluation.
Table 10. When changing to 2phase excitation mode at eighth position from 2W1-2phase excitation mode
DIR
Before
After
2W1-2
2phase(4step)
H 8step position 2step position
L
8step position
1step position