D1-N Series Servo Drive User Manual Protection Function
8-8 HIWIN MIKROSYSTEM Corp.
8.4 Limit protection
8.4.1 Hardware limit protection
D1-N servo drive supports hardware limit protection. Hardware limit usually means the photoelectric
switch or micro switch installed on positioning platform to specify travel distance. Hardware limit switch is
usually a normally-closed sensor. When hardware limit switch is triggered, the servo drive decelerates the
motor by the value set for emergency stop (Dec. kill). At this time, the servo drive only accepts motion
command for moving the motor towards the opposite direction.
Click on
to go to Protection center. Select HW limit protection tab to open the setting page for
hardware limit. Check the checkbox of Enable HW limit to enable hardware limit protection. Click on
Set… button to open the setting window of I/O center to set the input pin of hardware limit signal. For
setting method of digital input, please refer to section 5.4.1.
Figure 8.4.1.1
8.4.2 Software limit protection
In addition to hardware limit protection, D1-N servo drive also supports software limit protection. When
motor reaches the position of software limit, the servo drive only accepts motion command for moving the
motor towards the opposite direction.
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