
TMCM-1311 TMCL Firmware V1.11 Manual (Rev. 1.17 / 2015-NOV-05)
14
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3.4
Important Motor Settings
There are some axis parameters which have to be adjusted right in the beginning after installing your
module. Please set the upper limiting values for the speed (axis parameter 4), the acceleration (axis parameter
5), and the current (axis parameter 6). Further set the standby current (axis parameter 7) and choose your
microstep resolution with axis parameter 140. Please use the
SAP
(Set Axis Parameter) command for adjusting
these values. The SAP command is described in paragraph 5.7.5. You can use the TMCL-IDE direct mode for
easily configuring your module.
I
MPORTANT AXIS PARAMETERS FOR MOTOR SETTING
Number Axis Parameter Description
Range [Unit]
4
Maximum
positioning
speed
Should not exceed the physically highest possible
value. Adjust the pulse divisor (axis parameter 154), if
the speed value is very low (<50) or above the upper
limit.
0… +268.435.454
[pps]
5
Maximum
acceleration
The limit for acceleration (and deceleration). Changing
this parameter requires re-calculation of the
acceleration factor (no. 146) and the acceleration divisor
(no. 137), which is done automatically. See TMC 429
datasheet for calculation of physical units.
1… +33554431
[pps/s]
6
Absolute max.
current
(CS / Current
Scale)
The maximum value is 255. This value means 100% of
the maximum current of the module. The current
adjustment is within the range 0… 255 and can be
adjusted in 32 steps.
The most important motor setting, since too high
values might cause motor damage!
0… 7
79…87
160… 167
240… 247
8… 15
88… 95
168… 175
248… 255
16… 23
96… 103
176… 183
24… 31
104… 111
184… 191
32… 39
112… 119
192… 199
40… 47
120… 127
200… 207
48… 55
128… 135
208… 215
56… 63
136… 143
216… 223
64… 71
144… 151
224… 231
72… 79
152… 159
232… 239
0… 255
𝐼𝐼
𝑝𝑝𝑝𝑝𝑝𝑝𝑝𝑝
=<
𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣
>×
4.2
𝐴𝐴
255
𝐼𝐼
𝑅𝑅𝑅𝑅𝑅𝑅
=<
𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣
>×
3.0
𝐴𝐴
255
7
Standby current The current limit two seconds after the motor has
stopped.
0… 255
𝐼𝐼
𝑝𝑝𝑝𝑝𝑝𝑝𝑝𝑝
=<
𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣
>×
4.2
𝐴𝐴
255
𝐼𝐼
𝑅𝑅𝑅𝑅𝑅𝑅
=<
𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣
>×
3.0
𝐴𝐴
255
140
Microstep
resolution
0
full step
1
half step
2
4 microsteps
3
8 microsteps
4
16 microsteps
5
32 microsteps
6
64 microsteps
7
128 microsteps
8
256 microsteps
0… 8
Attention
:
The most important motor setting is the
absolute maximum motor current
setting, since too high values
might cause motor damage!