PI P-73 Series, User Manual

Page: 32 / 59

6 Start-up and Operation
28 Version: 1.0.0 PZ103E P-73x Nanopositioners
NOTICE
Reduced lifetime of the piezo actuator due to permanently high voltage!
The permanent application of a high static voltage to piezo actuators leads to a
considerable reduction in the lifetime of the piezo ceramics of the actuator.

When the P-73x is not used but the controller remains switched on to ensure
temperature stability, discharge the P-73x (p. 30).
NOTICE
Operating voltages that are too high or incorrectly connected can cause
damage!
Operating voltages that are too high or incorrectly connected can cause damage to
the P-73x.

Only operate the P-73x with controllers/drivers and original accessories from PI.

Do not exceed the operating voltage range (p. 39) for which the P-73x is
specified.

Only operate the P-73x when the operating voltage is properly connected; see
"Pin Assignment" (p. 47).
NOTICE
Uncontrolled oscillation!
Oscillations can cause irreparable damage to the stage. Oscillations are indicated by
a humming and can result from the following causes:

A change in the load and/or dynamics requires the servo-control parameters to
be adjusted.

The stage is operated near its resonant frequency.
If you notice oscillations:

In closed-loop operation, immediately switch off the servo mode.

In open-loop operation, immediately stop the stage.
INFORMATION
The arrows in the figures (see "Dimensions" (p. 41)) show the positive direction of
motion.