6 Startup and Operation
26
Version: 1.2.0
MP125E
N470 Linear Actuator
NOTICE
Operating frequency too high!
An excessively high operating frequency can cause damage to the N-470.
Operate the N-470 only with controllers/drivers and original accessories from PI.
Do
not
exceed the operating frequency range (p. 37) specified for the N-470.
NOTICE
Reduced lifetime of the piezo actuator due to permanently high voltage!
Applying a high static voltage to piezo actuators continuously reduces the lifetime of the piezo
ceramic.
If the N-470 is not used for a longer period of time, e.g., several days, switch the
electronics off.
NOTICE
Destruction of the piezo actuator due to electric flashovers!
Using the N-470 in environments that increase the electrical conductivity can lead to the
destruction of the piezo actuator by electric flashovers. Electric flashovers can be caused by
moisture, high humidity, liquids, and conductive materials (e.g., metal dust). In addition,
electric flashovers can also occur in certain air pressure ranges due to the increased
conductivity of the air.
Avoid operating the N-470 in environments that can increase the electric conductivity.
Operate the N-470 only within the permissible ambient conditions and classifications
(p. 38).
NOTICE
Friction due to lateral forces!
Lateral forces acting on the fine-threaded screw and the ball tip of the linear actuator increase
the friction on the internal drive components. Increased friction impairs the motion of the fine-
threaded screw and increases wear on the drive components.
Avoid lateral forces on the fine-threaded screw and on the ball tip of the N-470.
Install the N-470 so that the fine-threaded screw is aligned vertically to the contact surface
of the movable part of the mechanical mounting.
