M542T Microstepping Driver Manual V1.0
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5. Connecting the Motor
The M542T can drive any 2-pahse and 4-pahse hybrid stepping motors.
Connections to 4-lead Motors
4 lead motors are the least flexible but easiest to wire. Speed and torque will depend on winding inductance. In setting the driver
output current, multiply the specified phase current by 1.4 to determine the peak output current.
Connections to 6-lead Motors
Figure 5: 4-lead Motor Connections
Like 8 lead stepping motors, 6 lead motors have two configurations available for high speed or high torque operation. The higher
speed configuration, or half coil, is so described because it uses one half of the motor’s inductor windings. The higher torque
configuration, or full coil, uses the full windings of the phases.
Half Coil Configurations
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 driver output current multiply the specified per phase (or unipolar) current rating by
1.4 to determine the peak output current.
Full Coil Configurations
Figure 6: 6-lead motor half coil (higher speed) connections
The full coil configuration on a six lead motor should be used in applications where higher torque at lower speeds is desired. This
configuration is also referred to as full copper. In full coil mode, the motors should be run at only 70% of their rated current to prevent
over heating.
Figure 7: 6-lead motor full coil (higher torque) connections
