Stepper Motor Driver AD1231
YA7159-1/3
- 6 -
*3 EORG photocoupler ON/OFF condition in the following excitation methods
The EORG photocoupler is ON in the 2 phase excitation method (Both A and B phases are excited by
the same current.)
The timing in each excitation method is as follows.
2相励磁
EORG(-)
制御電源ON
入力パルス
1-2相励磁
入力パルス
W1-2相励磁
入力パルス
2W1-2相励磁
入力パルス
4W1-2相励磁
入力パルス
+5V
CLK(+)
CLK(-)
EORG(+)
EORG(-)
AD1231側
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
EORG(-)
EORG(-)
EORG(-)
EORG(-)
CLK(+)とEORG(+)を+5V接続した場合
*4 Components for use
Electronic components for use may be changed to equivalents without prior notice. In that case,
constants of surrounding devices, such as resistors, may be changed in accordance with the
specification.
In the case that CLK(+) and EORG(+) are connected to +5V.
AD1231
Control power ON
Input pulse
Input pulse
Input pulse
Input pulse
Input pulse
EORG(-)
EORG(-)
EORG(-)
EORG(-)
EORG(-)
2W1-2 phase excitation
4W1-2 phase excitation
W1-2 phase excitation
1-2 phase excitation
2 phase excitation
