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 19 / 30
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email
NOTICE
Operating voltage too high or incorrectly connected!
Operating voltages that are too high or incorrectly connected can cause damage to the drive.
Only operate the drive with a electronics from PI.
Do
not
exceed the operating voltage range (p. 23) for which the drive is specified.
Only operate the drive when the operating voltage is properly connected; see "Pin
Assignment" (p. 28).
NOTICE
Uncontrolled oscillation!
Oscillations can cause irreparable damage to the drive. 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 drive 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 drive.
NOTICE
Damage due to travel to the hard stop!
Repeated travel to the hard stop can cause damage and considerable wear to the mechanics.
Stop the motion immediately if a electronics malfunction occurs.
Set the control signal so that the moving part does not try to continue moving at the end of
the travel range.
INFORMATION
In a vacuum, there is no heat dissipation via convection.
We recommend to operate the vacuum version of the drive with a maximum duty cycle of
30 % with a maximum duration of motion of 10 sec.
Select an underlying surface for fixing the N-331.xxU that has high thermal conductivity.
Make sure that the entire lower surface of the N-331.xxU contacts the underlying surface
that it is fixed to.
Startup and Operation
Requirements
You have read and understood the safety precautions (p. 5) and the general notes on
startup and operation (p. 18).
You have read and understood the user manual of the electronics.