Bearing System; Position Transducer Resolution; Cable Management; Table 2-1: Bend Radius - Aerotech BLM Series Hardware Manual

"u-channel" linear motor
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BLM

2.1. Bearing System

Like a ball screw carriage, the linear forcer assembly must be supported by a linear bearing system
(refer to
Figure
2-1). The linear bearing system must be capable of supporting the load/heat sink and
the forcer. The forcer is constructed of non-magnetic materials, and, consequently, the forcer is not
attracted to the magnet track.

2.2. Position Transducer Resolution

The motion controller requires a position transducer for all forms of motion control. This is typically
a linear encoder. The specific application determines the encoder resolution.

2.3. Cable Management

If the forcer moves in the system, you must use a high-flex cable management system (CMS). If the
stage moves and the forcer is stationary, you do not need to use a CMS.
If the forcer motor power and feedback cables are long enough for your travel, they can be used in
the CMS.
If the forcer motor power and feedback cables are not long enough for the CMS or if this is a
vacuum-prepared system, the cables will need to terminate before they enter the CMS. You will need
to terminate the flying leads of the forcer cables at, in most cases, standard D-shell connectors. You
should then connect those connectors to the mating connectors of the high-flex cables that will be
used in the CMS.
Refer to
Table 2-1
Table 2-1:
Bend Radius
Motor
BLMSC, BLMUC, BLMC, BLM
BLMH
BLMX
44
for required bend radius for a given high flex cable forcer.
Hardware Manual
Bend Radius
47 mm [1.9 in]
82 mm [3.2 in]
114 mm [4.5 in]
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