Kübler Sendix 58 FS2 Instructions D'utilisation page 47

Tools
For assembly, use only checked and calibrated tools subjec-
ted to a quality system.
Screws and screwed connections
Unless otherwise specified, a friction coefficient of 0.14 is re-
quired for all screwed connections. Unless otherwise spe-
cified, a strength class of 8.8 (metric) or grade 5 (imperial) is
required for all screws.
The screws must be secured against loosening as described
in chapter Screw Retention [} 53].
4.1.2 Couplings
For the tapered and hollow shaft encoders, the coupling ele-
ments, e.g. a stator coupling or a compensating torque stop
are factory-mounted.
For solid shaft encoders, imperatively use a shaft coupling
that meets the requirements of the application.
The coupling element affects the system accuracy of the
drive unit. It must therefore be made sure that the coupling is
sufficiently rigid, without any slipping.
BA Sendix® 58xxFS2 / 58xxFS3 - R60049.0009 - 04
NOTICE
Make sure that the shaft couplings are designed so that a
breakage of the connection can be excluded. As the integ-
rator, it is up to you to conduct a risk analysis considering the
following aspects:
• Countertorque of the encoder
• Maximum permissible shocks and vibrations
• Maximum permissible acceleration
• Permissible geometrical deviations in the ideal orientation of
the shafts
• Permissible temperature and humidity ranges
• Required angular accuracy
Failure exclusion coupling element
A safe mechanical connection of the encoder is necessary.
Standard EN 61800-5-2 defines the loosening of the mechan-
ical connection (between the encoder and the drive) as a as a
fault that requires consideration. Fault exclusion is required
for the coupling elements if the control cannot detect this
fault.
NOTICE
EN - 47