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NI 9503 User Manual and Specifications
Notice that an 8-wire motor wired in a series configuration is
virtually identical to a 6-wire motor and typically has the same
high torque but low-speed characteristics.
Alternatively, you can connect 8-wire stepper motors in a parallel
configuration as shown in Figure 8. This configuration produces
better high-speed performance but requires more current to
produce rated torque.
Figure 8.
8-Wire Parallel Stepper Motor Connection
(Higher Speed, Lower Torque)
0
1
2
3
4
5
6
7
8
9
Phase A+
Phase A–
Phase B+
Phase B–
Reserved
Reserved
Reserved
COM
Vsup
Phase B–
Phase A+
Phase A–
Phase B+
Or
ange
Red
Yel/Wht
Red/Wht
Yellow
Blac
k
Org/Wht
Blk/Wht