8 Troubleshooting
P-63x Nanopositioner
PZ247E
Version: 1.1.0
29
Problem
Possible causes
Solution
No or limited
motion
Cable not connected
correctly
Check the cable connections.
Excessive load
Do
not
exceed the maximum permissible
stress and load capacities according to
the specifications (p. 33).
Zero shift of the sensor for
the following reasons:
Load in direction of
motion
Ambient/operating
temperature of the
positioner is far above
or below the calibration
temperature (21 °C to
24 °C)
Adjust the zero-point of the sensor (refer
to the controller manual).
Reduced accuracy The base body or the
platform is warped
Mount the P-63x onto surfaces with the
following characteristics only:
−
Flatness of at least 20 μm
−
The thermal expansion properties are
similar to those of the P-63x (e.g.,
surface made of aluminum).
Mount loads onto the P-63x with the
following characteristics only:
−
The contact surface of the load has a
flatness of at least 20 μm.
−
The thermal expansion properties are
similar to those of the P-63x (e.g.,
load made of aluminum).
The positioner
starts oscillating
or positions
inaccurately
Servo control parameters
incorrectly set because for
example, the load was
changed
1.
Switch off the servo mode of the
corresponding motion axes immediately.
2.
Check the settings of the servo control
parameters on the controller.
3.
Adjust the servo control parameters on
the controller according to the load
change.
Open-loop operation near
the resonant frequency
In open-loop operation, operate the
positioner only with a frequency that is
below the resonant frequency.
If the problem with your system is not listed in the table above or cannot be solved as
described, contact our customer service department (p. 31).
8
Troubleshooting
