MID-7604/7602 Power Drive User Guide
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Stepper Motor Configurations
This section describes the various industry-standard winding
configurations for stepper motors and shows how to connect them to
a MID-7604/7602. The MID-7604/7602 is compatible with all
configurations of two-phase stepper motors.
Note
The MID-7604/7602 is
not
compatible with 5-lead unipolar stepper motors or
5-phase stepper motors.
2-phase stepper motors come in 4-, 6-, and 8-wire variations. Figure 17
shows a 6-wire and an 8-wire stepper motor. A 4-wire motor is the same as
a 6-wire motor except that the center taps (CT) are not brought out.
Figure 17.
6-Wire and 8-Wire Stepper Motors
For maximum flexibility, you can connect 8-wire stepper motors in either
a series or parallel configuration. Connecting the windings in a series,
as shown in Figure 18, produces the most torque per amp but has the
disadvantage of higher inductance and poorer high-speed performance.
Phase A
Phase A-CT
Phase A-CT
Phase A
Phase B
Phase B-CT
Phase B-CT
Phase B
Phase A
Phase A-CT
Phase A-CT
Phase A
Phase B
Phase B-CT
Phase B-CT
Phase B
6-wire
8-wire
