Operation Examples For Changing The Motor Direction - YASKAWA SGD7S Product Manual

6.5.6

Operation Examples for Changing the Motor Direction

This section describes examples of using the /SPD-D (Motor Direction Input) signal in combina-
tion with zero clamping and internal set speed control.
Operation Example for Changing the Motor Direction and
Zero Clamping
This section provides an example of changing the motor direction without changing the polarity
of the speed reference voltage by using the /SPD-D (Motor Direction Input) signal.
/ZCLAMP
OFF
OFF
ON
ON
*
Pn501 (Zero Clamping Level): Used with a Rotary Servomotor.
Pn580 (Zero Clamping Level): Used with a Linear Servomotor.
Reference voltage
Speed reference
input voltage
/SPD-D input signal
Motor speed
SERVOPACK internal
speed reference
/ZCLAMP input signal
Zero clamping
Note: The soft start function is used for the acceleration/deceleration time of the speed reference.
Polarity of Analog Speed Reference Voltage
/SPD-D Positive
Rotation Direction
OFF CCW
ON CW
OFF CCW
ON CW
OFF ON
OFF
Released

6.5.6 Operation Examples for Changing the Motor Direction

Zero Clamping Level
or Lower ((Pn501
(Pn580))*
Operating Status
Speed Control
Speed Control
Servo lock
(clamped to zero)
Servo lock
(clamped to zero)
OFF
ON
Appl i e d Released Applied
6.5 Speed Control
Negative
Rotation Direction
CW
CCW
CW
CCW
Pn501
(Pn580)
ON
Pn501
(Pn580)
Released Applied
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