Rev D Mar 2020
Page 20
Chapter 4 Standalone Operation
The joystick can be used to control the motor in a number of ways as follows,
depending on the mode selected in the Joystick Mode menu option - see Section 4.4.6.
4.3.1 Zeroing
To establish a datum from which subsequent moves can be measured, move the
motor to the required zero position. The position count can then be zeroed in the Zero
Axis option in the Settings Menu - see Section 4.4.3.
The counter can also be zeroed by clicking the ZERO button on the GUI panel (see
Section 5.4.), or by calling the SetPositionSteps method and setting the position to
zero (see the APTServer helpfile for more details).
4.3.2 Jog to Count
In ‘Jog to Count’ mode, the joystick can be programmed with two position values, one
for each direction of deflection, such that the controller will move the motor to that
position when the joystick is moved. In this mode, move the joystick right (Ch1 and 3)
or up (Ch 2 and 4) to go to position 1, and left or down to go to position 2.
These ‘taught’ positions can be set through the Teach Position option in the settings
menu - see Section 4.4.7. or through the software GUI - see Section 6.3.2.
This mode of operation is enabled in the Settings Menu by setting the ‘Joystick Mode’
option to ‘Jog to Count’ - see Section 4.4.6. It can also be selected in the Joystick
Mode parameter on the Device tab in the GUI Settings panel - see Section 6.3.2. for
further information.
4.3.3 Jogging
The top panel joystick can also be configured to ‘jog’ the motor. This mode of
operation is enabled by setting the Joystick Mode menu option to ‘Jogging in Steps -
see Section 4.4.6. or by setting the ‘Joystick Mode’ parameter to ‘Jogging’ on the
‘Joystick’ settings tab - see Section 6.3.2.
Once set to this mode, the jogging parameters (step size, step rate etc) are taken from
the ‘Jog Settings’ parameters on the individual Channel settings tabs - see Section 6.3.1.
or from the Jog Step Size option in the panel settings menu.
4.3.4 Velocity Control
When Velocity Control mode is selected, the speed of the motor increases as a function
of deflection. The maximum speed is entered in the ‘Max Step Rate’ parameter in the
‘Joystick’ parameters on the Panel settings tabs - see Section 6.3.1.
Caution
If the actuator is driven into its end stops, the motor may stick and may not
respond to subsequent motion demands. If this is the case, turn the adjustment
knob of the actuator manually to move the device away from its end stop, then
the motor should move normally.
