MA860C Full Digital Stepper Drive Manual V1.0
5.2.1 Dynamic Current Setting
Peak Current RMS Current SW1 SW2 SW3
2.40A 1.70A ON ON ON
3.08A 2.18A OFF ON ON
3.77A 2.67A ON OFF ON
4.45A 3.15A OFF OFF ON
5.14A 3.64A ON ON OFF
5.83A 4.12A OFF ON OFF
6.52A 4.61A ON OFF OFF
7.20A 5.09A OFF OFF OFF
Notes: Due to motor inductance, the actual current in the coil may be smaller than the dynamic current setting,
particularly under high speed condition.
5.2.2 Standstill Current Setting
SW4 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.
The current automatically reduced to 50% of the selected dynamic current one second after the last pulse. If the
application needs a different standstill current, please contact Leadshine.
5.3 Motor auto-identification and parameter auto-configuration
The drive will operate the function of motor auto-identification and parameter auto-configuration when power on, and
calculate the optimal parameter using for current control after this processing,, then the stepper motor can output
optimal torque.
6 Typical Connection
A complete stepping system should include stepping motor, stepping drive, power supply and controller (pulse
generator). A typical connection is shown as figure 10.
Figure 10: Typical connection
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