6 Starting and Operating
26
Version: 1.2.0
PZ244E
P54x Nanopositioner
NOTICE
Decreased lifetime due to permanently high voltage!
Applying a continuous high static voltage to piezo actuators reduces the lifetime of the piezo
ceramic.
When the P-54x is not used but the electronics remain switched on to ensure temperature
stability, discharge the P-54x (p. 28).
NOTICE
Operating voltage too high or incorrectly connected!
Operating voltages that are too high or incorrectly connected can cause damage to the P-54x.
Operate the P-54x only with controllers/drivers and original accessories from PI.
Do
not
exceed the operating voltage range (p. 38) for which the P-54x is specified.
Operate the P-54x only when the operating voltage is properly connected; see "Pin
Assignment" (p. 42).
NOTICE
Uncontrolled oscillation!
Oscillation can cause irreparable damage to the P-54x. Oscillation is indicated by a humming
noise and can be caused by the following:
A change in the load and/or dynamics requires the servo control parameters to be
adjusted.
The P-54x is operated near to its resonant frequency.
If you notice oscillation:
In closed-loop operation, switch off the servo mode immediately.
In open-loop operation, stop the P-54x immediately.
INFORMATION
The P-54x's direction of motion is indicated in the product view (p. 10).
INFORMATION
Systems are calibrated at the factory to achieve optimum positioning accuracy. Replacing the
system components can lead to a reduction of position accuracy when positioners are used
with an ID-chip (p. 14) that does not contain calibration data or when LEMO plug connectors
are used.
When connecting the positioner, pay attention to the assignment of the motion axes to the
controller channels, which is specified on the calibration label of the controller.
If position accuracy is reduced after replacing the P-54x or the controller:
Recalibrate the axis displacement (refer to the controller manual) or contact our customer
service department (p. 33).
