MANUALS · FUEL [13] · страница 171 из 340 · Открыть оригинал PDF ↗

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Time
7Fu1204

Wave pattern observation points

Check that the standard wave pattern appears when the stepper motor is operating
Presence or absence of induced electromotive force from the
(Point A}:
abnormal wave pattern )

motor turning: (Refer to the

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Contrast with standard wave pattern or is extremely small: Induced electromotive force does not appear	Probable cause Motor is malfunctioning
Height of coil reverse electromotive force _ Point B}: Contrast with standard wave pattern or is extremely small_ Coil reverse electromotive force does not appear	Probable cause Short in the coil

(Point B}:Height of coil reverse electromotive force _
Contrast with standardwave pattern
Coil reverse electromotive force does not appearor is extremely small_

Abnormal wave pattern

Cause of problem

Motor is malfunctioning: (Motor is not operating )

Wave pattern characteristics

Induced electromotive force from the motor turning does
not appear

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