PI N-422, User Manual

Page: 9 / 43

2 Safety
N-422 Linear Drive MP116E Version: 1.1.1 5
In this Chapter
Intended Use .................................................................................................................................. 5
General Safety Instructions............................................................................................................ 5
2.1 Intended Use
The N-422 is a laboratory device as defined by DIN EN 61010-1. It is intended to be used in
interior spaces and in an environment which is free of dirt, oil, and lubricants.
The N-422 is a linear drive for integration in motion systems that are used for positioning,
adjustment and displacement of a moving object (load) in one axis. For integration, the
mechanical system in which the N-422 is to be installed must have suitable guidings. The N-422
can be mounted horizontally or vertically.
The N-422 linear drive uses the principle of inertia (stick-slip effect). The feed of the rod is
produced by alternating static and sliding friction between the rod and a cyclically activated
piezo actuator. The moving object (load) is coupled to the moving rod.
When at rest, the drive is self-locking, requires no current and generates no heat. It holds the
position with maximum force.
The N-422 is not intended for continuous operation. For further information on the operating
conditions of the N-422, see "Technical Data" (p. 31).
The intended use of the N-422 is only possible in connection with suitable drive electronics that
provide the required operating voltages. The drive electronics is not in the scope of delivery of
the N-422. PI offers suitable drive electronics (see p. 36).
External position sensors and a position controller are required for the closed-loop operation of
a motion system with N-422 drive and drive electronics.
2.2 General Safety Instructions
The N-422 is built according to state-of-the-art technology and recognized safety standards.
Improper use can result in personal injury and/or damage to the N-422.

Use the N-422 for its intended purpose only, and only when it is in perfect technical
condition.

Read the user manual.

Eliminate any malfunctions that may affect safety immediately.
The operator is responsible for the correct installation and operation of the N-422.
2 Safety