Prepare The Mating Faces For A Flange Connection; Do Not Bridge The Bearing Insulation; Figure 5-1 Schematic Diagram: Bearing Insulation - Siemens SIMOTICS HV C Operating And Installation Instructions

Assembly
5.1 Preparations for installation
5.1.4

Prepare the mating faces for a flange connection

● Clean the flange before installation, and make sure that the flange face is flat and free of
● Check the geometry of the flange.
See also
Technical data and drawings (Page 113)
Removing anti-corrosion protection (Page 50)
5.1.5

Do not bridge the bearing insulation

The machine is fitted with an insulated bearing seat. The insulation is located between the
rotor and bearing. The insulation means that the motor (housing, stator, shaft) represents an
open conductor loop.
NOTICE
Bridged bearing insulation
It is not permissible that the insulation is bridged when instruments are mounted, such as
vibration measuring systems, relubrication equipment, etc. Circulating currents in the motor
cause bearing damage at the drive and non-drive end.
● Only connect lubrication tubes, shock-pulse measurement sensor, bearing cover, etc. with
Cylindrical roller bearing: Insulated shaft
Figure 5-1
44
contaminations.
other motor parts or the motor ground with the appropriate insulation.
Schematic diagram: Bearing insulation
Deep-groove ball bearing: Insulated bearing
SIMOTICS HV C 1NB1402-2AA84-4CA0-Z
Operating Instructions 06/2018