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© National Instruments Corporation 25 MID-7604/7602 Power Drive
For maximum flexibility, you can connect 8-wire stepper motors in either a
series or parallelconfiguration. Connecting the windings in series asshown
in Figure 18 produces the most torque per amp, but has the disadvantage of
higher inductance and poorer high-speed performance.
Figure 18.
Series Stepper Motor Wiring (Higher Torque, Lower Speed)
Alternatively, you can wire 8-wire stepper motors in parallel as shown in
Figure 19. This configuration produces better high-speed performance but
requires more current to produce rated torque.
Figure 19. Parallel Stepper Motor Wiring (Higher Speed, Lower Torque)
1
2
3
4
5
Phase A
Phase B
Phase B
Phase A
Ground
Motor Case Ground
Shield
Phase A
Phase A-CT
Phase A-CT
Phase A
Phase B
Phase B-CT
Phase B-CT
Phase B
1
2
3
4
5
Phase A
Phase B
Phase B
Phase A
Ground
Motor Case Ground
Shield
Phase A
Phase A-CT
Phase A-CT
Phase A
Phase B
Phase B-CT
Phase B-CT
Phase B