6 Starting and Operating
P-2x5 Piezo Actuator
PZ245E
Version: 1.1.1
29
NOTICE
Operating voltage too high or incorrectly connected!
Operating voltages that are too high or incorrectly connected can cause damage to the P-2x5.
Operate the P-2x5 only with controllers/drivers and original accessories from PI.
Do
not
exceed the operating voltage range (p. 43) specified for the P-2x5.
Operate the P-2x5 only when the operating voltage is properly connected; refer to "Pin
Assignment" (p. 50).
NOTICE
Destruction of the piezo actuator due to overheating!
Overheating can destroy the piezo actuator.
Cool the piezo actuator, for example, with purge air (p. 25).
Monitor the temperature of the piezo actuator with a temperature sensor (p. 13).
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. 44), "Maximum Ratings" (p. 43) and "Determining the
Operating Parameters" (p. 30).
NOTICE
Uncontrolled oscillation!
Oscillation can cause irreparable damage to the P-2x5. Oscillation is indicated by a humming
noise and can be caused by the following:
A change in the load and/or dynamics requires the servo control parameters to be
adjusted.
The P-2x5 is operated close to its resonant frequency, or with too high operating
frequency.
If you notice oscillation:
In closed-loop operation, switch off the servo mode immediately.
In open-loop operation, stop the P-2x5 immediately.
INFORMATION
The outward motion of the tip corresponds to the positive direction of motion and is
proportional to the operating voltage applied.