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Idle
SPI1, 2
SPM0
(φA)
SPM1
(φB)
SPM2
(φC)
SPM3
(φD)
Drive
phase
Figure 5.28 Carriage drive 1/2-phase excitation at low speed
SPI1, 2
SPM0
(φA)
SPM1
(φB)
SPM2
(φC)
SPM3
(φD)
Drive
D D A B C D A B C D A B C D A B C D A B C D A B C
phase
A B C D A B C D A B C D A B C D A B C D A B C D
Figure 5.29 Carriage drive 2-phase excitation at high speed
A A B B C C D D A A B B C C D D A A
B
C
D
Operating
A
B
C
D
A
B
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