8 Troubleshooting
P-5x7/P-5x8 Positioners
PZ82E
Version: 3.2.0
33
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. 37).
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-5x7/P-5x8 onto surfaces
with the following characteristics only:
−
Flatness of at least 20
μm
−
The thermal expansion properties are
similar to those of the P-5x7/P-5x8
(e.g., surface made of aluminum).
Mount loads onto the P-5x7/P-5x8 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-5x7/P-5x8
(e.g., load made of aluminum).
P-5x7/P-5x8 or controller
has been replaced
When using positioners with an ID chip (p. 13)
that does not contain any calibration data, or
with LEMO plug connectors, axis
displacement has to be recalibrated after the
P-5x7/P-5x8 or the controller has been
replaced.
Recalibrate the axis displacement (refer
to the controller manual) or contact our
customer service department (p. 35).
8
Troubleshooting
