NPM AD1431 User Manual page 14

Stepper Motor Driver AD1431
By setting SW1-3 to SW1-4, you can change the motor excitation method.
SW1-3
ON
OFF
ON
OFF
- 12 -
SW1-4
ON 2 phase excitation 1/1 (Full) step*
ON 1-2 phase excitation 1/2 (Half) step*
OFF W1-2 phase excitation 1/4 step
OFF 4W1-2 phase excitation 1/16 step
Setting
YA7179-1/2