Rockwell Automation MPMA Integrated Multi-Axis Linear Stages - Manual (Page 12)

12 Rockwell Automation Publication MPMA-UM001B-EN-P - November 2010
Chapter 1 Multi-axis Stage Safety
Clearances
Install the multi-axis stage to avoid interference with the building, structures,
utilities, other machines and equipment that may create a trapping hazard of
pinch points.
Dress cables using the Clearance Requirements on page 29 as a guide. Do not
cross the path of motion or interfere with the cable carrier motion.
General Safety
Linear stages are capable of sudden and fast motion. Rockwell Automation, Inc. is
not responsible for misuse, or improper implementation of this equipment.
Heat
When the stages are running at their maximum rating, the temperature of the
carriage can reach 75
ºC (167 º F).
Vertical or Inclined Payload
A direct drive (linear motor driven) linear stage mounted vertically or on an
incline will not maintain position when the power is removed. Under the
influence of gravity the carriage and its payload will fall to the low end of travel.
Design engineers should allow for this by using a ball screw driven linear stage
with power-off holding brake, or designing in controlled power down circuits or
mechanical controls to prevent the linear stage and its payload from being
damaged when the power fails.
End of Travel Impacts
The internal bumpers of the linear stages are designed to take a large impact from
uncontrolled motion. The table on
page 60 lists the energy that the bumpers can
absorb before risking damage to the linear stage. The carriage payload should be
secured to the carriage such that it will not sheer off in the event of an impact in
excess of the bumper ratings.
The bolts securing the end caps will not be able to sustain multiple impacts and
may eventually sheer. Correct the cause of the uncontrolled motion that caused
the impact before continuing the use of the linear stage.
Air Freight Restrictions
When air freighting multi-axis stages, special preparations and precautions must
be taken. The following information outlines the basic requirements at the
publication date of this document. However, regulations are subject to change
and additional area or carrier restrictions may be imposed. Always check with
your carrier or logistics specialist regarding current local, regional, and national
transportation requirements when shipping this product.
The 200 mm or a 250 mm direct drive linear stages (catalog numbers MPAS-
A8
xxxE-ALMx2x, MPAS-B8xxxF-ALMx2x, MPAS-A9xxxK-ALMx2x, or
MPAS-B9 xxxL-ALMx2x,) contain magnetized material, as classified by