EM Series Drive Hardware Installation Manual
6
HWMN-EM-R20111018
6. Connecting the Motor
The EM drive can drive any 2-pahse and 3-phase hybrid stepper motors.
2-phase, 4-lead Motors Connections
4 lead motors are the least flexible but easiest to wire. Speed and torque will depend on winding inductance. In setting the drive output
current, multiply the specified phase current by 1.4 to determine the peak output current.
2 phase, 6-lead Motors 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 drive output current multiply the specified per phase (or unipolar) current rating by 1.4 to
determine the peak output current.
Full Coil Configurations
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.
Summary of Contents for EM Series
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