PI MS249E - Page 262

11 Troubleshooting
256 Version: 1.2.1 MS249E C-863.12 Mercury Controller
Fault: Positioner performs unintentional motion
Possible causes
Remedial measures
Joystick is not connected, but
activated in the C-863.12
➢ Activate the joystick in the software only if the C-863.12 is
actually connected to a joystick (p. 90).
Joystick not calibrated
➢ Calibrate the joystick (p. 92).
Startup macro is run
➢ Check whether a macro is specified as the startup macro
and cancel the selection of the startup macro if necessary
(p. 99).
Positioner's brake deactivated
with the BRA command (p.
132) when servo mode is
switched off
➢ Secure the positioner against moving unintentionally
before you deactivate the brake by command!
Fault: Positioner is oscillating or positions inaccurately
Possible causes
Remedial measures
The load was changed.
➢ Readjust the system according to the changed load (p. 66).
Fault: Positioner is already oscillating during the reference move
Possible causes
Remedial measures
Very high load on the
positioner
In case of a very high load, proceed with PIMikroMove during
the reference move as follows:
1. Do not start the reference move in the Start up axes step,
but click on Close to close the Start up controller window
instead.
2. In the main window, open the single axis window for the
positioner connected by selecting the positioner in the
View > Single Axis Window menu.
3. Expand the view of the single axis window by clicking on
the > button at the right edge of the window.
4. With the Servo check box, make sure that the servo mode
is switched on.
5. Start the reference move by clicking on one of the
Reference… buttons.
6. If the positioner is oscillating: Stop the reference move
immediately in the Reference Axes dialog, close the dialog