3DM580 Digital Stepping Driver Manual V1.1
Tel: +086 755-26434369
8
Web Site: www.leadshine.com
7.7A
5.5A
OFF
ON
ON
ON
8.0A
5.7A
ON
ON
ON
ON
For a given motor, higher driver current will make the motor to output more torque, but at the
same time causes more heating in the motor and driver. Therefore, output current is generally set
to be such that the motor will not overheat for long time operation. Since parallel and serial
connections of motor coils will significantly change resulting inductance and resistance, it is
therefore important to set driver output current depending on motor phase current, motor leads and
connection methods. Phase current rating supplied by motor manufacturer is important in selecting
driver current, however the selection also depends on leads and connections. Select a setting
closest to your motor’s required current.
Notes:
Due to motor inductance, the actual current in the coil may be smaller than the dynamic
current setting, particularly under high speed condition.
Microstep Resolution
When it’s not in configured mode, the LAST three bits (SW6, 7, 8) of the DIP switch are used to
set the microstep resolution..
Steps/rev.(for 0.6°motor)
SW6
SW7
SW8
Default (400)
ON
ON
ON
12800
OFF
ON
ON
1000
ON
OFF
ON
2000
OFF
OFF
ON
4000
ON
ON
OFF
8000
OFF
ON
OFF
10000
ON
OFF
OFF
20000
OFF
OFF
OFF
Standstill current setting
SW5 is used for this purpose. OFF meaning that the standstill current is set to be half of the
selected dynamic current, and ON meaning that standstill current is set to be the same as the
selected dynamic current.
