User Manual
PZ271E, valid for N-331
KSch, 1/18/2021
Physik Instrumente (PI) GmbH & Co. KG, Auf der Roemerstrasse 1, 76228 Karlsruhe, Germany
Page 5 / 30
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email
Safety Precautions
CAUTION
Dangerous voltage and residual charge on piezo actuators!
The drive contains piezo actuators. Temperature changes and compressive stresses can induce
charges in piezo actuators. After being disconnected from the electronics, piezo actuators can
also stay charged for several hours. Touching or short-circuiting the contacts in the drive’s
connector or of the connected vacuum feedthrough can lead to minor injuries. In addition, the
piezo actuators can be destroyed by an abrupt contraction.
Do
not
open the drive.
Discharge the piezo actuators of the drive before installation:
Connect the drive to the switched-off PI electronics, which is equipped with an internal
discharge resistor.
Do
not
pull out the connector from the electronics during operation.
Touching the contacts in the connector can lead to an electric shock (max. 130 V DC) and minor
injuries.
Do
not
touch the contacts in the connector or the connected vacuum feedthrough.
Secure the connector of the drive or of the adapter cable on the air side with screws
against being pulled out of the electronics.
CAUTION
Risk of crushing by moving parts!
There is a risk of minor injuries caused by crushing which can occur between the moving parts
of the drive and a stationary part or obstacle.
Keep your fingers away from areas where they can get caught by moving parts.
NOTICE
Destruction of the PICMAWalk drive by electric flashovers!
The drive contains piezo actuators. The use of the drive in environments that increase the
electrical conductivity can lead to the destruction of the piezo actuators by electric flashovers.
Electric flashovers can be caused by moisture, high humidity, liquids and conductive materials
such as metal dust. In addition, electric flashovers can also occur in certain air pressure ranges
due to the increased conductivity of the air.
Avoid operating the drive in environments that can increase the electric conductivity.
Only operate the drive within the permissible ambient conditions and classifications (see
p. 24).
For operation in vacuum below 0.1 hPa:
Do not operate the drive during evacuation and aeration.