6 Starting and O
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Version: 1.1.0
PZ259E
P-88x/P-08x Piezo Actuator
NOTICE
Reduced lifetime due to permanently high voltage and high air humidity!
Applying a continuous high static voltage to piezo actuators reduces the lifetime of the piezo
ceramic. This applies in particular to operation in a humid environment.
When the P-88x/P-08x is not in use but the electronics remain switched on to ensure
temperature stability: Set the piezo voltage to 0 V on the electronics.
If possible: Limit the maximum operating voltage during continuous operation.
Reduce offset voltages to a minimum.
Protect the piezo actuator against moisture by means of hermetic sealing or the supply of
dry air.
Make sure that the air humidity in the vicinity of the P-88x/P-08x does not exceed the
relative humidity specified in "Ambient Conditions and Classifications" (p. 52).
NOTICE
Operating voltage excessively high or incorrectly connected!
Operating voltages that are too high or incorrectly connected can cause damage to the
P-88x/P-08x.
Do
not
exceed the operating voltage range (p. 50) for which the P-88x/P-08x is specified.
Operate the P-88x/P-08x only when the operating voltage is properly connected; see
"Connecting the P-88x/P-08x to the Electronics" (p. 28).
If you have applied the operating voltage with the wrong polarity accidentally, contact our
customer service department (p. 45).
NOTICE
Destruction of the piezo actuator due to overheating!
During the operation of the piezo actuator, dielectric losses that are converted into heat
energy occur in the piezo ceramic due to ferroelectric polarization processes. The resulting
heat can overheat and destroy the piezo actuator, especially in dynamic operation.
Adjust the operating voltage, operating frequency, and/or operating time so that the
maximum operating temperature of the piezo actuator is not exceeded; see "Ambient
Conditions and Classifications" (p. 52), "Maximum Ratings" (p. 50), and "Determining the
Operating Parameters" (p. 35).
Cool the piezo actuator. Do
not
use liquids for cooling. If liquid cooling is to be used,
contact our customer service department (p. 45).