WEGeuro - Indústria Eléctrica, S.A. Português - English
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The rotor axial centre position shall be assured by the driven machine and coupling.
This must be taken into consideration during the assembly of the motor together with
the driven machine.
7. MOTOR PROTECTIONS
7.1 We recommend motor protection by using overloads and short-circuit relays.
7.2 Motors must be earthed, using either the grounding screw inside the terminal box and
fixed to the motor frame.
7.3 Motor installation shall be done according to standards EN/IEC 60079-14. Inspections
and maintenance shall be done according to standards EN/IEC 60079-17.
7.4 If motors are fitted with thermal protections, these may be connected as an additional
protection and source of information for maintenance. In case of Pt100 or
thermocouples, tripping temperature must be regulated to the values indicated by
WEG.
7.5 If the thermal probes are not connected, the user must ensure that the installation and
preventive maintenance are properly performed to avoid a bearing failure that may
result in the occurrence of an ignition source.
7.6 Where necessary, and depending on the installation and operating conditions of the
machine, provisions such as continuous temperature monitoring of the D.E. and
N.D.E. bearings shall be taken to protect against any effects due to the presence of
circulation currents.
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