Specifications

E-500/E-501 Series PZT Servo Controllers User Manual PZ 62E
Release 2.15.1 www.pi.ws Page 15
High temperatures can overheat the E-500/E-501 system.
 Install the E-500/E-501 system horizontally with 3 cm air circulation area.
 Do not install the E-500/E-501 system vertically since this prevents internal
convection.
 Ensure sufficient ventilation at the installation site.
The E-500.621 chassis uses the same main connectors as the E-500.00 and E-501.00, but
has incompatible pinouts.
 Do not use the modules described in this manual with the E-500.621 chassis.
Oscillations can cause irreparable damage to the piezo actuator connected to the E-500/E-
501 system. Oscillations are indicated by a humming and can result from the following
causes:
 The load and/or dynamics of operation differ too much from the calibration settings.
 The piezo actuator is operated near its resonance frequency.
If you notice oscillations:
 In closed-loop operation, immediately switch the servo mode off.
 In open-loop operation, immediately stop the piezo actuator.
The E-500/E-501 system performance can be reduced directly after power-on due to
thermal instability.
 Switch the E-500/E-501 system on at least one hour before working with it.
The constant application of high voltage to piezos can lead to leakage currents and
flashovers that destroy the ceramic.
If the E-500/E-501 system is not used, but should remain switched on to ensure the
temperature stability.
 Switch the servo mode off (open-loop operation)
 Set the piezo voltage to 0 V:
− Analog mode: The input voltage for the target value is 0 V
− Computer-controlled mode: Corresponding commanding
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