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Installation
6
Unpacking
6.1
WARNING: Cylindrical motor shafts contain powerful permanent magnets. People with a pacemaker, AICD
or similar medical devices should maintain a minimum distance of 30cm from the shaft.
WARNING: The shaft emits a very strong magnetic field, always use caution when handling. To avoid
injury, keep fingers and other body parts clear.
Before unpacking commences, wait for the motor to reach room temperature to prevent condensation. Once at
room temperature, remove protective packaging from the forcer. Due to the magnetic nature of the shaft, it is
recommended that protective material around the shaft is left on as long as possible during installation. During
installation, ensure that the shaft is kept on a clean surface away from any other magnetic and ferrous materials.
If the shaft is to be left unattended, precautions should be taken to prevent accidents or damage due to its strong
magnetic field. All personnel involved in transporting, storing, installing and/or maintenance of the shaft must be
made aware of the potential hazards involved.
Mechanical
6.2
WARNING: Surface temperatures of up to 80°C can be present during operation of the LinX system. Allow
the forcer and shaft to cool before touching the motor.
WARNING: Always isolate the motor from the electrical supply. The motor could move unexpectedly and
present a crushing hazard.
6.2.1
Shaft
WARNING: The shaft emits a very strong magnetic field, always use caution when handling. To avoid
injury, keep fingers and other body parts clear.
Due to the strong magnetic nature of the shaft, proximity to magnetic parts and items sensitive to magnetic fields
must be considered at all times. It is recommended that non-magnetic packing material is used when making
adjustments to the shaft to prevent the shaft being attracted to any magnetic parts e.g. linear bearings.
The shaft must be mounted to ensure that concentricity with the central bore of the forcer. The nominal radial air
gap between the forcer and shaft of 1mm should ideally be maintained for the entire stroke. On longer strokes,
this may not be practical. The air gap is non-critical for operation as long as the forcer and shaft do not come into
contact. Contact will result in an increase in friction and wear on the cylindrical linear motor. Refer to
for more information.
WARNING: The shaft is not designed to be a load bearing element. Additional elements must be added to
the forcer to handle any load applied.
One end of the shaft is identified as the datum as indicated by a stamped " " marking. This marker will be on the
opposite end from the label sticker and can be used to identify the polarity of the magnet sequence inside the
shaft. Note that for standard assembly and motor commissioning of a single shaft system it is generally not
required to know the magnetic orientation of the shaft (see
commissioning and motor travel direction). The marker is used for diagnostic purposes or when multi-shaft
installations are required.
ANCA Motion
6.2.3 Linear Encoder
D-000168 Rev 02
Installation
4.3.1 Shaft
for more details on
6
27
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