THORLABS K-Cube Piezo Controller User Manual page 53

MMI Controls
The voltage 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 as follows or via the top panel display menu, see Section
4.4.
Joystick Mode
The parameters displayed are dependent upon the Feedback Loop Settings selected
on the Control tab. If Open Loop is selected, the parameters are displayed in Voltage,
if Closed Loop is sleected the parameters are displayed in Position.
Adjust Voltage/Position - The wheel can be used to increase and decrease the
drive voltage/position. The voltage change is proportional to the deflection of the
wheel according to the setting in the Voltage Adjust Rate parameter as follows:
High - Voltage adjusts at a high rate, i.e. 1 V per click
Medium - Voltage adjusts at a medium rate, i.e. 100 mV per click
Low - Voltage adjusts at a low rate, i.e. 10 mV per click
Jog Voltage/Position - Deflecting the wheel initiates a change in the drive voltage,
using the parameters specified by the Voltage Step parameter. The voltage
changes by one step for each click of the wheel.
Set Voltage/Position - Deflecting the wheel changes the drive voltage to one of the
two predefined "teach" voltages or positions. The teach voltages are specified in
the Preset Volts/Position 1 and Preset Volts/Position 2 parameters.
Joystick Direction
The direction of a voltage change initiated by the velocity wheel is specified as
follows:
Direction Sense Positive - Upwards rotation of the wheel results in a positive
change (i.e. increased voltage).
Direction Sense Negative - Upwards rotation of the wheel results in a negative
change (i.e. decreased voltage).
K-Cube Piezo Driver
53