Timing Chart And Waveform Of Scanner Motors; Normal 1-2 Phase Excitation (Half Step) - Panasonic UF-5500 Service Manual

UF-5500 / 4500
6.8.

Timing Chart and Waveform of Scanner Motors

Control sequence and waveform of ADF motor.
6.8.1.

Normal 1-2 phase excitation (half step)

1. Timing chart
(IC300)
PHA1(A10)
PHA2(B10)
I01(C10)
I11(A9)
I02(B9)
I12(C9)
Phase A
motor current
Phase B
motor current
2. Wave form
PHA1
Pin4 of
IC502 or
IC700
Motor
current
Motor current is changed according to the scan speed.
1 2 3 4 5
T(ms)
Fig. 1
6 7 8 9 10
44
11 12 13 14 15
5V/Div
20V/Div
0.5A/Div
16