Leroy-Somer X20 AC GEARLESS, Installation And Maintenance Manual

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INSTALLATION AND MAINTENANCE
X20 – 30 – 36 – AC GEARLESS
LEROY-SOMER
3141 en - 02.1999/ a
In order to obtain complete satisfaction from your new
LEROY–SOMER gearless machine, it is important to
comply with the following instructions:
1 - RECEIPT
Initial checks :
- As soon as you receive the machine, inspect the state of the
packing and of the machine. In the event of any damage
having been caused by transportation, notify your haulage
contractor.
- Next, ensure that the identification plate conforms with the
contract specifications and certified data.
2 - STORAGE
2.1 - Storage area
The storage area must be dry, and sheltered from the
elements. With a minimum temperature of -40°C, it should not
be subject to frequent temperature variations (to avoid the
risk of condensation), and should be free from vibration, dust
and corrosive gases.
2.2 - Long-term storage (> 3 months)
- Place the motor in an horizontal position in a sealed
watertight package (heat-sealed bag, for example) containing
a dehydrating sachet and large enough to protect the
machine, taking account of its size and the humidity in the
storage area.
- The grooves of the traction sheave are protected by a
special wax; don't remove this protective film, it protects the
exposed surfaces.
- In case of vibrations in the warehouse, it is recommended to
release the brake by hand (with the brake release lever) or to
release the brake springs and open the brake arms. Rotate
the traction sheave twice a month minimum. Then put the
brake back into its original position. Make sure the protective
paper between the lining and the brake wheel is still in
position.
3 - ENVIRONMENT
Rated characteristics for these motors are given for a normal
environment (specified in IEC 34.1) :
- altitude 1000 m or less,
- maximum relative humidity: less than 95%,
- temperature between -16 and + 40 °C.
More stringent specifications can be accommodated by
derating if the particular requirements are stated at the time
of ordering.
4 - COMMISSIONING
4.1 - Insulation inspection (before
installation)
If the motor has been stored for several months, it is essential
to check that :
• the inside is clean and free of condensation;
• the motor is correctly insulated (minimum of >100M
Ω ,
powered at 500 V.D.C. for 60 seconds) after disconnection of
all the electronic circuits.
WARNING: Do not apply the megohmmeter to the
thermal detector terminals, as this may damage them.
If the correct insulation value is not reached, the motor should
be dried out as follows:
4.1.1 - By heating externally
- Place the motor in an oven at 70°C, ensuring all openings
are free of obstruction, for 27 hours or more until the correct
isolation is obtained.
- Take care to raise the temperature gradually to avoid
condensation.
- While drying, make regular checks on the insulation values
which will tend to fall initially and then rise.
4.1.2 - By heating internally
Connect the three motor winding in serial. Supply them with a
low DC voltage (to get 10% of rated current calculated with
the winding resistors) increase voltage until the current get
50% of rated current. Supply during four hours temperature
of motor housing must exceed 50°C.
IMPORTANT :
Contact with any live or rotating parts may cause
injury. Never touch the motor casing during operation, as
this is likely to become hot.
Installation, servicing and maintenance must only be
carried out by a qualified member of staff.
LEROY-SOMER cannot be held responsible for any
problems arising from failure to comply with the
instructions in this manual.
The machine is under warranty as long as it is not
partially or completely dismantled without LS assistance
(or approval) during the warranty period.
CAUTION : MAKE SURE THE CAR IS MECHANICALLY
IMMOBILIZED BEFORE PERFORMING ANY
MAINTENANCE ON THE MOTOR OR ON THE BRAKE.