Timing Chart - Hitachi Vector Control with the SJ300 Inverter Application Note

(3-2-3) Timing chart

Motor
rotation
N
ORT
input
Z
A
B
MCU recognition
Positioning
completion output
signal (POK)
Fig 5. Timing chart of example 3-2
Motor shaft rotates a bit to reverse in case it exceeds the stop position (1 ~ 2 pulses).
Refer to section [2] for adjusting each parameters to get good motor performance.
© 2002 Hitachi America, Ltd.
Œ
•
ON
2Hz Orientation
Ž
Positioning start signal (Min. ON period = 50ms)
Start counting the pulses from the falling edge
1 2
16
•
n-2 n-1 n