Leadshine Technology DM870 User Manual page 14

Figure 24: Finish tuning and save setting to the Drive
Notes:
However, if the user does not want to tune the current loop after changing a different stepping motor,
then Motor auto-identification and parameter auto-configuration technology of the DM870 can
replace manual tuning the Drive with ProTuner. Just changes SW4 two times in 1 second, and then
the Drive will auto-identify the new motor and auto-configure related control parameters for optimum
responses. Recommend use this function after changing the driven motor.
l SystemConfig:
In SystemConfig window, the user can configure Peak Current, Microstep, Command Type, Active
Edge, and eliminate motor resonance. A built-in pulse generator can be used for test during tuning.
See Picture 25.
PeakCur: Peak Current. The value is the peak current to the selected motor and can be set from 0.5
to 5.6 A. The user can set the peak current with ProTuner or DIP switches, see more information
about setting output current of the Drive in section 5 "Connecting the Motor" and section 7
"Selecting Microstep Resolution and Drive Output Current".
MicroStep: Microstep Resolution. The value is Drive's microstep resolution setting and can be set
from 1 to 512. The user can set the microstep with ProTuner or DIP switches, See more information
about setting output current of the Drive in section 7 "Selecting Microstep Resolution and Drive
Output Current".
Tel: +086 0755-26434369
DM870 Digital Stepping Driver Manual V1.0
23 Web Site: www.leadshine.com
Figure 25: SystemConfig window
ElecDamp: Electronic Damping Coefficient. The electronic damping restrain resonance of the
system and prevent amplitude of the oscillation from increasing to the extend that it makes the motor
out of control. The optimal value depends on the system, and the default value is 3000.
CommandType: Command Type of control signal, including PUL/DIR and CW/CCW. Set this
parameter according to Command Type of motion controller.
ActiveEdge: Active Edge. The user can set the triggered edge of pulse command signal in this panel.
When the Drive works in CW/CCW mode, no matter what level is at fixed level terminal, the Drive
can works properly.
DirectionDef: Direction Definition. Relate the default running direction to a HIGH level input in
DIR or Low level input in DIR. This panel is used for PUL/DIR command type only. Please note that
the default direction is also related to motor coil connections.
Tel: +086 0755-26434369
DM870 Digital Stepping Driver Manual V1.0
24 Web Site: www.leadshine.com