User Manual

TMCM-1210 Hardware Manual (V0.91 / 2017-SEP-04) 12
Copyright © 2015, 2016, 2017 TRINAMIC Motion Control GmbH & Co. KG
5 Motor driver current
The on-board stepper motor driver operates current controlled. The driver current may be programmed in software
with 32 effective scaling steps in hardware.
Explanation of different columns in table below:
Motor current
setting in
software (TMCL)
These are the values for TMCL axis parameter 6 (motor run current) and 7 (motor standby
current). They are used to set the run / standby current using the following TMCL
commands:
SAP 6, 0, <value> // set run current
SAP 7, 0, <value> // set standby current
(read-out value with GAP instead of SAP. Please see separate TMCM-1210 firmware
manual for further information)
Motor current
I
RMS
[A]
Resulting motor current based on motor current setting
Motor current
setting in
software (TMCL)
Motor
current
I
COIL_PEAK
[A]
Motor
current
I
COIL_RMS
[A]
0..7
0.033
0.023
8..15
0.066
0.047
16..23
0.099
0.070
24..31
0.132
0.094
32..39
0.165
0.117
40..47
0.199
0.140
48..55
0.232
0.164
56..63
0.265
0.187
64..71
0.298
0.211
72..79
0.331
0.234
80..87
0.364
0.257
88..95
0.397
0.281
96..103
0.430
0.304
104..111
0.463
0.328
112..119
0.496
0.351
120..127
0.529
0.374
128..135
0.563
0.398
136..143
0.596
0.421
144..151
0.629
0.445
152..159
0.662
0.468
160..167
0.695
0.491
168..175
0.728
0.515
176..183
0.761
0.538
184..191
0.794
0.562
192..199
0.827
0.585
200..207
0.860
0.608
208..215
0.893
0.632
216..223
0.926
0.655
224..231
0.960
0.679
232..239
0.993
0.702
240..247
1.026
0.725
248..255
1.059
0.749