PI P-88 5 Series, Руководство пользователя, Страница: 27 / 49

6 Starting and Operating
P-88x.x5 Piezo Actuator PZ266E Version: 1.1.0 23
In this Chapter
General Notes on Starting ........................................................................................................... 23
Determining the Operating Parameters ...................................................................................... 26
Operating the P-88x.x5 ................................................................................................................ 29
Discharging the P-88x.x5 .............................................................................................................. 30
Short-Circuiting the P-88x.x5 ....................................................................................................... 31
6.1 General Notes on Starting
CAUTION
Risk of electric shock if the protective earth conductor is not connected!
The system into which the piezo actuator is integrated (e.g., housing or surrounding
mechanical system) must be connected to a protective earth conductor. If the protective earth
conductor is not or not properly connected, touching the system in which the piezo actuator
was incorporated can lead to minor injury from electric shock in the case of a malfunction.

Before startup, connect the overall system to a protective earth conductor in accordance
with the applicable standards.

Do not remove the protective earth conductor during operation.

If the protective earth conductor has to be temporarily removed (e.g., for modifications),
reconnect the overall system to the protective earth conductor before restarting.
NOTICE
Destruction of the piezo actuator due to excessive operating frequencies!
An excessive operating frequency can cause thermal and mechanical overloading that destroys
the piezo actuator.

If your application involves dynamic operation, contact our customer service department
(p. 37).

Select the operating frequency so that the following conditions are met:
− The operating frequency of the piezo actuator does not exceed one third of the
resonant frequency.
− The maximum compressive/tensile stress capacity (p. 41) of the piezo actuator is not
exceeded.
−
The maximum permissible operating temperature of the piezo actuator is not
exceeded. For details, see "Overview of Limiting Factors" (p. 26).

Reduce the voltage at high operating frequencies to minimize the heating of the piezo
actuator.

If your application involves the operation of a piezo actuator which is not clamped on both
sides, contact our customer service department (p. 37).
6 Starting and Operating