Assembly
TR-Electronic GmbH 2019, All Rights Reserved
Printed in the Federal Republic of Germany
Page 20 of 29
TR - ECE - BA - GB - 0142 - 01
06/12/2019
5 Assembly
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If the safety functions are deactivated because of an unstable shaft
drive, there will be the danger of death, serious physical injury and/or
damage to property!
The system manufacturer must take suitable design measures to ensure
that the measuring system is reliably driven by the shaft and firmly
attached at any time (fault exclusion). The specifications of DIN EN
61800-5-2:2017 “Electrical power drive systems with speed control,
Safety requirements – Functional, Table D.8 – Motion and position
feedback sensors“ must be observed.
The requirements and acceptance conditions for the overall system
must always be taken into account when assembling the measuring
system.
All fastening screws must be secured such that they cannot be loosened
accidentally.
In case of applications with low ambient temperatures, the start-up
torque will be increased. This fact must be taken into account during
assembly and when providing the shaft drive.
5.1 Solid shaft
5.1.1 Requirements
The following instructions are not exhaustive as the assembly situation may be different for
each application.
The coupling used must be suitable for the application and allow form-locking connection.
The coupling manufacturer's information and installation requirements must be observed.
In particular, you must ensure that
– the coupling is suitable for the specified speed and the potential axial offset,
– installation is on a grease-free shaft,
– there is no axial load on the coupling and the measuring system,
– the clamping screws are tightened with the torque defined by the coupling manufacturer,
– the coupling screws are secured such that they cannot be loosened accidentally.
Axial slipping of the measuring system on the drive shaft must be prevented by fixing the
coupling in position, see Figure 1, (1).
Radial slipping of the measuring system on the drive shaft must be prevented by a form-
locking connection, using a parallel key / groove combination (Figure 1, (2)); a coupling with
groove must be used for this purpose.
