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HA0333T Rev B Oct 2014
Chapter 4
4.2
Front Panel Controls and Indicators
Fig. 4.1 Front Panel Controls and Indicators
MOVE Controls -
These controls allow all motor moves to be initiated.
Jog Buttons
- Used to jog the motors and make discrete position increments in
either direction - see Section 5.6. for more details on jogging.
Slider Potentiometer
- Used to drive the motor at a pre-defined speed (set in the
settings panel - see Section 4.3.) in either forward or reverse directions for full and
easy motor control
Active LED
- The Active LED can be configured to flash when the motor reaches a
forward or reverse limit switch, and to be lit when the motor is moving - see Section
6.3.3. for further details.
POWER LED -
Lit when power is applied to the unit. This LED can be configured to
flash when the ‘Ident’ button is clicked on the APT Software GUI panel - see Section
6.3.3. for further details.
4.3
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 or degrees) in the ‘Potentiometer Control Settings’ parameter in the
‘Advanced’ settings tab. The velocity profile is derived from the ‘Velocity Profile’
settings in the ‘Move/Jogs’ settings tab - see Section 6.3.1. and the Potentiometer
Control Settings in the Advanced tab - see Section 6.3.3.
POWER
ACTIVE
MOVE/JOG
apt - stepper controller
VELOCITY
