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EM532MINI Digital Stepper Drive User Manual
Figure 5 Fault Output Connections
5. Motor Connection
The EM532MINI can drive 2-phase and 4-pahse bipolar hybrid stepper motors with 4, 6, or 8 wires.
5.1 Connections of 4-lead Motor
The 4 lead motors are the least flexible and easy to connect. And the Speed – torque of motor depends on winding
inductance.
The output current from drive that is multiply the specified phase current by 1.4 to determine the peak
output current.
Figure 6: 4-lead Motor Connections
5.2 Connections of 6-lead Motor
Like 8 lead stepping motors, 6 lead motors have two configurations available for high speed or high torque operations.
The higher speed configuration, or half coil, is described, because it uses one half of the motor's inductor windings.
The higher torque configuration, or full coil, uses the full coil windings.
5.2.1 Half Coil Configuration
As previously stated, the half coil configuration uses 50% of the motor phase windings. This gives lower inductance,
hence, lower torque output. Like the parallel connection of 8 lead motor, the torque output will be more stable at higher
speeds. This configuration is also referred to as half chopper. In setting the drive output current multiply the specified
per phase (or unipolar) current rating by 1.4 to determine the peak output current.
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