PI P-54 Series, Руководство пользователя

Страница: 35 / 51

8 Troubleshooting
P­54x Nanopositioner PZ244E Version: 1.2.0 31
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. 35).
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 distorted

Mount the P-54x onto surfaces with the
following characteristics only:
− Flatness of at least 20 μm
−
The thermal expansion properties are
similar to those of the P-54x (e.g.,
surface made of aluminum).

Mount loads onto the P-54x 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-54x (e.g.,
load made of aluminum).
P-54x or controller has been
replaced
When using positioners with an ID chip (p. 14)
that does not contain any calibration data, or
with LEMO plug connectors, axis
displacement has to be recalibrated after the
P-54x or the controller has been replaced.

Recalibrate the axis displacement (refer
to the controller manual) or contact our
customer service department (p. 33).
8 Troubleshooting