8
INSTALLATION AND MAINTENANCE
CPLS drip-proof 3-phase induction motors
4240 en - 2014.09 / b
LEROY-SOMER
The deviations registered by either shaft will indicate the need
for an axial or radial adjustment if the deviation exceeds
0.05 mm.
Direct connection using a rigid coupling
Both shafts must be aligned so as to adhere to the tolerances
of the coupling sleeve manufacturer.
Maintain the minimum distance between the shaft extensions
to allow for expansion of the motor shaft.
Ø (mm)
A (mm)
< 55
1
60
1.5
65
1.5
75
2
80
2
If this is not possible, consult LEROY-SOMER.
Transmission via belt pulleys
The user chooses the diameter of the pulleys.
Cast iron pulleys with a diameter over 315 are not recommended
for rotation speeds of 3000 min
-1
and more.
Flat belts cannot be used for rotation speeds of 3000 min
-1
and more.
Positioning the belts
So that the belts can be correctly positioned, allow for possible
adjustment of approximately 3% with respect to the calculated
distance E.
Force must never be used when fitting the belts.
For notched belts, position the notches in the pulley grooves.
Check that the motor shaft is completely parallel and aligned
with that of the receiving pulley.
The belt tension must be adjusted very carefully in line with the
recommendations of the belt supplier.
Reminder:
- Tension too great = unnecessary force on the end shields
which could lead to premature wear of the bearing unit (end
shield-bearings) and eventually break the shaft.
- Too little tension = vibration (wearing of the bearing unit).
For any radial force value not in the technical
catalogue, contact Leroy-Somer.
CPLS HV3 motors can withstand barely any radial
force. Transmission via belt pulleys prohibited for these
versions!
2.4 - Electrical connection
Electric motors are industrial products.
They must therefore be installed by qualified,
experienced personnel.
The safety of people, animals and property must be
ensured when fitting or building the motors into
a machine (please refer to current standards).
The CPLS range of motors is designed for use with a frequency
inverter.
For optimum operation without compromising safety, follow
the commissioning and protection procedures described in the
user manuals for these drives.
Earthing
It is essential to earth the motor in order to protect workers and
ensure correct operation of the installation.
Conform to the current standards and legislation.
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