Full Digital Stepper Drive DM2282T
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6
Figure 7: 6-lead motor full coil (higher torque)
connections
Connections to 8-lead Motors
8 lead motors offer a high degree of flexibility to the system designer in that they may be connected in series or
parallel, thus satisfying a wide range of applications.
Series Connections
A series motor configuration would typically be used in applications where a higher torque at lower speeds is
required. Because this configuration has the most inductance, the performance will start to degrade at higher
speeds. In series mode, the motors should also be run at only 70% of their rated current to prevent over heating.
Figure 8: 8-lead motor series
connections
Parallel Connections
An 8 lead motor in a parallel configuration offers a more stable, but lower torque at lower speeds. But because of the
lower inductance, there will be higher torque at higher speeds. Multiply the per phase (or unipolar) current rating
by 1.96, or the bipolar current rating by 1.4, to determine the peak output current.
Figure 9: 8-lead motor parallel
connections
6. Power Supply Selection
The power supply voltage can work normally between the voltage range specified by the driver. The DM2282T is directly
powered by AC. It is recommended that the user use the highest voltage lower than the driver's specified voltage to avoid
the grid fluctuation exceeding the driver voltage operating range.
To reduce costs, two or three drivers can share a single power supply, but the power of power supply should be large
enough.
