THORLABS TPZ001, User Manual

Page: 17 / 60

17
4.2 Control Panel Buttons and Indicators
Fig. 4.1 Panel Controls and Indicators
VOLTS Display - Shows the voltage applied to the piezo actuator/stack.
OUTPUT Potentiometer - Used to set the voltage applied to the piezo actuator/
stack.
MODE Button - Allows access to the configuration settings (e.g. Open or Closed
loop control selection) - see Section 4.4.2.
RESOLUTION Button - Toggles the OUTPUT potentiometer between ‘Coarse’
and ‘Fine’ adjustment - see Section 4.4.
POWER LED - Lit when power is applied to the unit.
4.3 Output Potentiometer Operation
The OUTPUT potentiometer is an infinite turn encoder, used to adjust the piezo drive
voltage. To increase the drive voltage, turn the potentiometer clockwise - once the
maximum voltage (set via software - see Section 4.4.2. and Section 6.2.) is attained,
subsequent clockwise turns do not effect the output, however the voltage decreases
immediately the control is turned anticlockwise. Similarly, once the voltage has been
decreased to 0V, subsequent anticlockwise turns do not effect the output, but the
voltage increases immediately the control is turned clockwise.
Note
The VOLTS display and the POWER LED will flash when the ‘Ident’ button
is clicked on the GUI panel - see Section 6.1. for further details.
POWER
VOLTS
MODE
RESOLUTION
OUTPUT
apt - piezo controller