8 Troubleshooting
Q-521 Miniature Linear Stage
MP145E
Version: 1.0.1
45
Problem
Possible causes
Solution
Functional
impairment after
system
modification
Drive electronics
or controller has
been replaced
The linear stage
has been replaced
E-872 drive electronics or E-873 controller from PI:
Load the parameter set from the stage database that
corresponds to the Q-521 model.
If necessary: Set the parameters on the electronics in
the PIMikroMove PC program so that they
correspond to the application (load, orientation) of
the Q-521 model (see user manual of the
electronics).
No or limited
motion
Cable not connected
correctly or defective
Check the connecting cable(s)
Excessive load
Reduce the load. Pay attention to the information in
the "Technical Data" section (p. 49).
If the linear stage is mounted vertically, make sure
that the installed load is lower than the self-locking
of the drive (see “Holding force, power off” on p. 49)
Parameters of the
electronics incorrectly
set
See the "Functional impairment after system
modification" problem in this table.
Operating voltage too
low
Provide an operating voltage of 48 V.
Unfavorable operating
frequency for step
mode
Adapt the operating frequency for the step mode
(for details, see "Starting Up the Q-521" (p. 40) and
manual of the electronics used).
Warped base body
Mount the Q-521 on an even surface. The
recommended evenness of the surface is ≤2 µm.
Unfavorable load
mounting
Pay attention to the maximum torque when affixing
the load (p. 30).
Keep the distance between the center of gravity of
the load and the center of the motion platform as
small as possible in all directions.
Unsuitable ambient
conditions
Only operate the Q-521 in a clean environment and
within the permissible ambient conditions (p. 52).
Wear of the drive
Replace the Q-521 and make sure that the operating
parameters of the electronics are adapted to the
linear stage.
Drive is blocked
Carefully release the blockage by manually moving
8
Troubleshooting
