3DM580 Digital Stepping Driver Manual V1.1
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Figure 3: Connection to PNP signal (common-cathode)
5. Connecting the Motor
The 3DM580 can drive any 3 lead or 6 lead three phase hybrid stepping motors. The connection
between the driver and 3-phase stepping motors includes two different kinds of connections,
namely delta-connection and star-connection. Using delta-connection, the performances of the
motor under high speed condition are better, but the driver current is higher too (about 1.73 times
the motor coil current); while using star-connection, the driver current equals to the motor coil
current.
Figure 4: Motor connections
6. Power Supply Selection
The 3DM580 can match medium and small size stepping motors (from NEMA frame size 14 to 34)
made by Leadshine or other motor manufactures around the world. To achieve good driving
performances, it is important to select supply voltage and output current properly. Generally
speaking, supply voltage determines the high speed performance of the motor, while output current
determines the output torque of the driven motor (particularly at lower speed). Higher supply
