Rev K Jan 2020
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.
The velocity of this move is set in real world units (mm) in the ‘Potentiometer Control
Settings’ parameter in the ‘Advanced’ settings tab - see Section 7.3.5. and is limited
to a maximum of 20 mm/sec.
5.4 Button Operation
The buttons on the front of the unit can be used to control the motor in a number of
ways, as described below.
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 Go to Position
Each button can be programmed with a different position value, such that the
controller will move the motor to that position when the specific button is pressed.
This mode of operation is enabled by setting the ‘Button Mode’ parameter to ‘Go To
Position’ on the Advanced settings tab - see Section 7.3. for further information.
5.4.3 Teaching ‘Go To Position’ Values
In addition to entering values in the Advanced Tab as described in Section 5.4.2.
above, when operating in Go To Position mode it is possible from the front panel, to
save the current position as the ‘Go To Position’ value.
To save the current position as the ‘Go To Position’ value, press and hold the
required button for 2 seconds.
5.4.4 Jogging
The front panel buttons can also be configured to ‘jog’ the motor. This mode of
operation is enabled by setting the ‘Button Mode’ parameter to ‘Jogging’ on the
‘Advanced’ settings tab - see Section 7.3. Once set to this mode, the jogging
parameters for the buttons are taken from the ‘Jog’ parameters on the ‘Move/Jogs’
settings tab - see Section 7.3.
5.4.5 Switching Between Button Modes
The button mode can only be changed in the Settings panel, see Chapter 7.3.5.
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