參數(shù)資料
型號(hào)： TMC222-PI20
元件分類： 運(yùn)動(dòng)控制電子
英文描述： STEPPER MOTOR CONTROLLER, PDSO20
封裝： SOIC-20
文件頁(yè)數(shù)： 2/48頁(yè)
文件大?。?/td> 457K
代理商： TMC222-PI20
10
TMC222 DATASHEET (V. 1.12 / March 7, 2011)
Copyright 2004-2011 TRINAMIC Motion Control GmbH & Co. KG
5.1.4
Vmax Parameter
The desired maximum velocity Vmax can be chosen from the table below:
Vmax
index
Vmax
[FS/s]
Vmax
group
Stepping Mode
Half-Step
Mode
[half-steps/s]
1/4 micro
stepping
[micro-steps/s]
1/8 micro
stepping
[micro-steps/s]
1/16 micro
stepping
[micro-steps/s]
0
99
A
197
395
790
1579
1
136
B
273
546
1091
2182
2
167
334
668
1335
2670
3
197
395
790
1579
3159
4
213
425
851
1701
3403
5
228
456
912
1823
3647
6
243
486
973
1945
3891
7
273
C
546
1091
2182
4364
8
303
607
1213
2426
4852
9
334
668
1335
2670
5341
10
364
729
1457
2914
5829
11
395
790
1579
3159
6317
12
456
912
1823
3647
7294
13
546
D
1091
2182
4364
8728
14
729
1457
2914
5829
11658
15
973
1945
3891
7782
15564
Table 3: Vmax Parameter
Under special circumstances it is possible to change the Vmax parameters while a motion is ongoing.
All 16 entries for the Vmax parameter are divided into four groups A, B, C and D. When changing
Vmax during a motion take care that the new Vmax value is within the same group. Background: The
TMC222 uses an internal pre-divider for positioning calculations. Within one group the pre-divider is
equal. When changing Vmax between different groups during a motion, correct positioning is not
ensured anymore.
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