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20 Portal axes with ball screw drive
2 Before you begin - safety information PAS4•S
MNA1MLSDM00EN, V2.01, 07.2009
2.3 Basic information
@ WARNING
GREAT MASS OR FALLING PARTS
• Consider the mass of the axis when mounting it. It may be neces-
sary to use a crane.
• Mount the axis in such a way (tightening torque, securing screws)
that the axis and mounted parts cannot come loose even in the
case of fast acceleration or continuous vibration.
• Note that vertically installed linear axes may lower unexpectedly.
Failure to follow these instructions can result in death, serious
injury or equipment damage.
@ WARNING
LOSS OF CONTROL
• The designer of any control scheme must consider the potential
failure modes of control paths and, for certain critical functions,
provide a means to achieve a safe state during and after a path
failure. Examples of critical control functions are EMERGENCY
STOP, overtravel stop, power outage and restart.
• Separate or redundant control paths must be provided for critical
functions.
• System control paths may include communication links. Consid-
eration must be given to the implication of unanticipated transmis-
sion delays or failures of the link.
• Observe the accident prevention regulations and local safety
guidelines.
1)
• Each implementation of the product must be individually and thor-
oughly tested for proper operation before being placed into serv-
ice.
Failure to follow these instructions can result in death or serious
injury.
1) For USA: Additional information, refer to NEMA ICS 1.1 (latest edition), Safety
Guidelines for the Application, Installation, and Maintenance of Solid State Control
and to NEMA ICS 7.1 (latest edition), Safety Standards for Construction and
Guide for Selection, Installation for Construction and Operation of Adjustable-
Speed Drive Systems.