•
Ensure even support, precise alignment in case of direct coupling and
use of thread sizes specified in EN 50347 for motor feet and flange
mounting.
•
Provide a vibration-free environment. Avoid build-up resonances with rotation frequency and
the double frequency of the power supply.
•
Turn the rotor by hand, pay attention to unusual grinding noises. Check the direction of
rotation in the coupled state.
•
Pull the drive elements (belt pulley, clutch etc.) on and off using only suitable devices. Use
cover to protect from touching. The part to be pulled on is to be heated. Transmission
elements must not be hammered on the shaft by force. Avoid excessive belt tension.
•
Airflow must not be prevented. Ensure enough space for the airflow and that the blown-out,
heated cooling air is not drawn in back again.
•
All components mounted on the shaft end must be carefully balanced. The standard motors
are half-key balanced unless explicitly specified.
•
Due to the use of cylindrical roller bearings („reinforced NU-Bearing“) relatively high radial
forces or masses can be applied at the end of the motor shaft. The minimum radial force at the
shaft end must be a quarter of the permissible radial force. The permissible shaft load must be
taken into account.
•
The user ensures that the condensate water drain holes on motors with increased IP
protection (IPX6 / IP6X) are sealed in a water – or dust-tight manner after the condensate has
been drained as well as during transport and storage.
•
For the IM B14 and IM B34 mounting motors the maximum screw-in depths specified in the
table 1 must be observed. If an IM B14 and IM B34 mounting motor is used, stored or
transported without flanged equipment, the user must take appropriate precautions against
the intrusion of foreign particles and moisture through the threaded holes.
Frame size
Screw-in depth, mm
Frame size
Screw-in depth, mm
56-63
8
100-112
15
71
10
132
17
80
11
160
24
90
14
Table 1
. Screw-in depths of motor mountings IM B14 and IM B34.
5. Electrical connection
5.1.
General information
All maintenance procedures must only be carried out by a qualified specialist on a stationary
motor in a state where it is disconnected and secured against restart.
This also applies to
auxiliary circuits (heating). Please note the performance data on the nameplate and connection
diagram in the terminal box.
Please consider notes from IEC / IEC 60034-1 (VDE 0530-1) on operation at the limits of ranges A (±5%
voltage or (±2% frequency deviation) and B, associated heating, and deviation of operating data from
rated data must be observed.
Power supply cables should be selected according to the installation
specific conditions specified in DIN VDE 0100 (current, ambient temperature, installation method
etc.).
Caution:
follow the performance
data on the motor nameplate.
SEVA-tec GmbH - Lether Gerwerbestrasse 10 - 26197 Ahlhorn - www.seva-tec.de
6
