Manual for Induction Motors and Generators
2 -
Safety Instructions
3BFP 000 050 R0101 REV E
Follow the manufacturer's instructions when mounting or removing couplings or other drive
elements and cover them with a touch guard. For trial run in uncoupled state, lock or remove the
shaft end key. Avoid excessive radial and axial bearing loads (note manufacturer's
documentation). The balance of the machine is indicated as H = Half and F = Full key. In half-
key cases, the coupling too, must be half-key balanced. In case of protruding, visible part of the
shaft end key, establish mechanical balance.
Make necessary ventilation and cooling system connections. The ventilation must not be
obstructed and the exhaust air, also of neighbouring sets, not taken in directly.
5. Electrical connection
All operations must be carried out only by skilled persons on the machine at rest. Before starting
work, the following safety rules must be strictly applied:
•
De-energize!
•
Provide safeguard against reclosing!
•
Verify safe isolation from supply!
•
Connect to earth and short!
•
Cover or provide barriers against neighbouring live parts!
•
De-energize auxiliary circuits (for example, anti-condensation heating)!
Exceeding of limit values of zone A in EN 60034-1 / DIN VDE 0530-1 - voltage ± 5%,
frequency ± 2%, waveform and symmetry -leads to higher temperature rise and affects the
electromagnetic compatibility. Note rating plate markings and connection diagram in the
terminal box.
The connection must be made in a way that the permanent safe electrical connection is
maintained. Use appropriate cable terminals. Establish and maintain safe equipotential bonding.
The clearances between uninsulated live parts and between such parts and earth must not be
below the values of appropriate standards and values possibly given in manufacturer's
documentation.
No presence of foreign bodies, dirt or moisture is allowed in the terminal box. Close unused
cable entrance holes and the box itself in a dust- and watertight manner. Lock the key when the
machine is run without coupling. For machines with accessories, check satisfactory functioning
of these before commissioning.
The proper installation (for example, segregation of signal and power lines, screened cables
etc.) lies within the installer's responsibility.
6. Operation
Vibration severity in the "satisfactory" range (V
rms
≤
4.5 mm/s) according to ISO 3945 is
acceptable in coupled-mode operation. In case of deviations from normal operation - for
example, elevated temperature, noises, vibrations - disconnect machine, if in doubt. Establish
cause and consult manufacturer, if necessary.
Do not defeat protective devices, not even in trial run. In case of heavy dirt deposits, clean
cooling system at regular intervals. Open blocked condensate drain holes from time to time.
Grease the bearings during commissioning before start-up. Regrease antifriction bearings while
the machine is running. Follow instructions on lubrication plate. Use right kind of grease. In
