Rev B Apr 2018
Page 14
Chapter 5 Standalone Operation
5.3 Potentiometer Operation
The potentiometer slider is sprung such that when released it returns to it’s central
position. In this central position the motor is stationary. As the slider is moved away
from the centre, the motor begins to move. Bidirectional control of the motor is
possible by moving the slider in both directions.
5.4 Button Operation
The keypad can be used to control the motor in a number of ways, as follows.
5.4.1 Homing
A ‘Home’ move is performed to establish a datum from which subsequent absolute
position moves can be measured (see Section 6.3. and Section C.2.2. for further
information on the home position).
To initiate a ‘Home’ move, press and hold both buttons for 2 seconds.
5.4.2 Jogging
The front panel buttons can also be used to ‘jog’ the motor. The jogging parameters
for the buttons are taken from the ‘Jog’ parameters on the ‘Move/Jogs’ settings tab -
see Section 7.3.
Note
The two buttons and the slider on the user top panel can be disabled if required. To do
this, hold down both buttons and then power up the unit. Continue to hold down the
buttons until the green POWER LED is lit. This setting is then persisted, and the buttons
will remain disabled until the user again holds down both buttons on power up, at which
point the user interface becomes operable again.
