Velocity Wheel Operation - THORLABS K-Cube Piezo Controller User Manual

Chapter 4

4.3 Velocity Wheel Operation

The velocity wheel/joystick is an infinite turn potentiometer, which is used to initiate
different types of move depending on its mode setting. The mode can be set either
via the GUI Settings panel, see Section 6.2.3. or via the top panel display menu, see
Section 4.4.
4.3.1 Voltage Adjust Mode
In voltage mode, the wheel can be used to increase and decrease the drive voltage.
The voltage change is proportional to the deflection of the wheel - see Section 4.4.7.
The rate of change is adjusted in the Joystick Menu parameter - see Section 4.4.8.
4.3.2 Go to Voltage
In 'Go To Voltage' mode, two preset voltage values can be specified, such that the
drive voltage is set to voltage 1 when the wheel is moved down, and to voltage 2
when it is moved up. These 'taught' voltages can be set through the software GUI -
see Section 6.2.3. or via the display menu, see Section 4.4.7.
This mode of operation is enabled by setting the 'Wheel Mode' to 'Go to voltage'
through the software GUI - see Section 6.2.3. or via the display menu, see Section
4.4.7.
4.3.3 Jog to voltages
The top panel wheel can also be configured to 'jog' the drive voltage. This mode of
operation is enabled by setting the 'Wheel Mode' parameter to 'Jog to voltage'
through the software GUI - see Section 6.2.3. or via the display menu, see Section
4.4.7.
18 HA0365T Rev Dk Jan 2017