Trinamic PANDrive PD-109-57, Electronic Manual

Page: 14 / 21

PD-109-57 / TMCM-109-57 Manual (V1.10 / October 17th, 2007) 14
Copyright © 2006, TRINAMIC Motion Control GmbH & Co. KG
5.5 Motor Current setting
The motor current can be set in a range of 0 to 255, using the TMCL software (inst. 5: SAP, type 6:
max. current). 255 corresponds to the module’s maximum I
COIL
setting.
Setting I
COIL,PP
I
COIL,RMS
255 5.0A 3.54A
216 4.2A 3.0A
180 3.5A 2.5A
144 2.8A 2.0A
108 2.1A 1.5A
72 1.4A 1.0A
0 0A 0A
Table 5.1: Motor Current Examples
5.6 Microstep Resolution
The microstep resolution can be set using TMCL software. The default setting is 64 microsteps which
is the highest resolution.
To set the microstep resolution with TMCL use instruction 5: SAP, type 140: microstep resolution. You
can find the appropriate value in Table 5.2.
Value microsteps
0
Do not use: for fullstep please
see “fullstep threshold”
1 Halfstep (not recommended)
2 4
3 8
4 16
5 32
6 64
Table 5.2: Microstep resolution setting
Despite the possibility to set up to 64 microsteps, the motor physically will be positioned to a
maximum of about 24 Microsteps, when operated in 32 or 64 microstep setting.