Motor Power Company DUET_FL 48/10, Руководство пользователя

Страница: 75 / 196

Page 75
You can select one of the homing methods described in chapter Homing methods in the Mode field.
During the homing run, the motor will run until the Destination has been activated.
The No movement method is a special case. In this case, the current actual position is defined as the
homing position. In this case, the drive will not move at all.
In all other cases, the destination will be approached at search speed . Then the drive moves back at
crawl speed to determine the exact contact threshold. The running speed is used to approach the
home position (zero point of the application). This may differ from the destination . The index pulse,
for instance, is preferred as the home position as it has a higher level of accuracy.
You can find the settings for the search, crawl and running speed or the corresponding acceleration on
the
Driving profile tab for the speed, acceleration and time values. This tab will be described in detail
below.
If there is a certain distance between the actual homing position, i.e. the calculated zero point for the
subsequent positioning runs, and the home position of the homing run, this distance can be entered
into the
Offset start position field.
If the option Go to zero position after homing run is selected, the drive will move to the zero position
at running speed after the homing run has been performed.
If you select this option, make sure that the zero position is not located behind the
destination of the homing run as this would cause a homing run error.
You can define a maximum search path . If the DUET_FL servo positioning controller cannot detect a
limit switch signal within this search distance, it will issue an error message. The search path is based
on the maximum position limits. The
Max. position limits button will lead you to the menu for
parameterizing the general positioning settings (e.g. positioning limits). See chapter Global positioning
settings .
If the option Homing run at controller enable is selected, the homing run will be started automatically
once the controller is enabled.
Tab: Driving profile
Here you can enter Speed and Acceleration values for the following processes:
 Search: Movement of the drive until it reaches the destination (limit switch, stop)
 Crawl: Reversal of movement (at low speed) to determine the contact threshold.
 Running: Optional movement to the zero point (home position) of the application.
User Manual DUET_FL „DUET_FL 48/10“ Version 1.1 Motor Power Company