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7.2.8.2. Signal Output Timing

Fig 7-21: Signal timing of position feedback signal (øA/øB)

CHB output (øB)

CHA output (øA)

Rotation to CCW direction Rotation to CW direction

1 2 3 4 FR

・・・

One revolution

Fig 7-22: Signal timing of position feedback signal (øZ)

Rotation to CCW direction Rotation to CW direction

CHZ (output) (øZ)

CHZ output (MSB)

！

Caution : If the phase Z is used to specify the position scale of the Motor, be sure

to use the rising edge of the signal.

◊ The phase Z is made to have precise position repeatability on its

rising edge regardless of the Motor rotational direction.

◊ Use of the falling edge of the signal to detect the base position

won’t maintain the position repeatability because of the effect

caused by difference in pulse width when reversing the rotational

direction.

！

Caution : The output signals of the phases A, B and Z are not synchronized each

other.

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NSK Megatorque PS Series Specifications

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