Leroy-Somer X20 AC GEARLESS Instruction Manual

This manual is to be given to
the end user
X20 – 30 – 36 AC GEARLESS
Installation and maintenance
3141 en - 02.1999 / a

2
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.

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INSTALLATION AND MAINTENANCE
X20 – 30 – 36 – AC GEARLESS
LEROY-SOMER
3141 en - 02.1999/ a
4.2 - Installation
Incorrect lifting methods may be dangerous for
personnel and may cause serious damage to the
machine.
Check that the machine weight is below the lifting capacity of
any sling or hook. The only way to properly lift the complete
machine is to attach it by points which are recommended (see
figure 1).
Motors should be installed in a location where cooling air
(which must be low in humidity, free of dust, steam and
corrosive gases) can enter and exit freely. Ensure that warm
air emissions cannot be drawn back in (motor against a wall
for example).
4.2.1 - Cleaning
- Release the brake by hand with the brake lever, or release
the brake springs and open the brake arms, and remove the
protection which is between the brake shoes and the brake
wheel of the traction sheave.
- Remove any rust-protective wax from the sheave.
Do not use any abrasive material, but rather a cloth
soaked in alcohol or solvent. Use a solvent wich does
not contain oil to avoid oil contamination of the friction
surfaces.
WARNING: only use the solvent in a ventilated area.
If the machines are delivered with a bed-plate and a
secondary sheave, the secondary sheave has to be cleaned
as well (see above).
4.2.2 - Mechanical installation
- The gearless machine must be installed on a bed plate not
subject to vibrations, and must be secured by four M30 bolts,
nuts, and washers. The bolts must be secured only when
ropes, car, counter-weight, traction sheave and secondary
sheave are perfectly aligned. When this operation is
completed, weld the plates attached to the U bolts of the
secondary sheave if it is supplied.
- Before installing the ropes, check that the traction sheave
can rotate freely by releasing the brake and rotating the
sheave by hand.
- When the ropes are installed, adjust the clearance between
the ropes and the rope guard and tighten the two bolts to
secure the rope guard.
4.3 - Connection
- See connection diagrams in the terminal boxes (motor,
brake and blower).
- Connect the motor using cables and connectors of an
appropriate size.
- Check also that connectors are crimped onto the cables.
Be particularly careful when screwing on the terminal nuts (if
done incorrectly, this could damage the connections by
overheating : see figure 2).
- During installation, include safety devices to protect the
motor.
- Connect the supply cables to the terminals U1, V1, W1 as
per IEC 34.1 to have clock-wise rotation of the shaft.
- If case, connect thermistors to the remote control.
- Connect the earth terminal.
4.4 - Bearing inspection
When the storage exceeds one year, it is advisable to
regrease (see section 5.2).
Lifting rings
X20 X30 - X36
Lifting rings
fig. 2
IncorrectCorrect

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INSTALLATION AND MAINTENANCE
X20 – 30 – 36 – AC GEARLESS
LEROY-SOMER
3141 en - 02.1999/ a
4.5 - Brake adjustment
Before carrying out the adjustments, disconnect
the brake supply.
4.5.1 - Spring adjustment
Adjust the
∆ l dimension of the springs (see figure 3) to obtain
the braking torque complying with the elevator code in use.
Maximum values for
∆ l are in technical catalogue.
- Unlock the counter nuts 45 and 151 .
- Adjust the spring length to
∆ l with counter nuts 45 .
- Lock the counter nuts 45 and 151 .
4.5.2 - Plunger stroke adjustment
Dimension x must be adjusted around 11 mm to obtain
0.1mm minimum air gap between the brake shoe and drum
(see figure 4 and drawing page 6 and 7):
- Dismantle the brake covers 83 .
- Unlock the counter nuts 55 .
- Use screws 41 to enable a wedge of x mm thickness to slide
under the plunger head. Adjust both side of the brake at the
same time.
- Lock the counter nuts 55 .
- Reassemble the brake covers.
Once the adjustment is done, connect the brake supply.
Release the mechanical system which immobilized the
car before the adjustments.
4.6 - Filter
Motors are fitted with filter F to protect the gearless machine
from dust. Remove the filter F after cleanning the machine
room and the hoist way when the building is beginning to be
inhabited.
5 - SERVICING
5.1 - First operation
Check that electrical machinery is properly grounded
before carrying out the first operation to protect the
staff from electric shock.
Run the machine and check the following points:
- abnormal noise,
- vibrations,
- action of switch contacts,
- all fixings and electrical connections are fully tightened,
- the state of the bearings,
- abnormal running,
- that the blower motor is rotating in the correct direction.
- Check also the currrent and the voltage on the machine
when it is running with rated load.
Important: never run the machine without the blower
switched on.
5.2 - Maintenance
During service visits, for an optimized life expectancy of the
machine, proceed with the following operations.

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INSTALLATION AND MAINTENANCE
X20 – 30 – 36 – AC GEARLESS
LEROY-SOMER
3141 en - 02.1999/ a
5.2.1 - Every month
- Check for loose bolts, nuts or electrical connections.
- Check for abnormal noise, vibration or abnormal running.
- Remove grease traces (if any) on the sheave and brake
drum 28 .
5.2.2 - After one month, then every six months
- Check the brake springs are properly adjusted. If they are not,
the springs must be readjusted (see section 4.5.1).
- Put two or three drops of oil (Rotogliss ISO 32 - HAFA) in the
brake spring axis at location O .
- Check the plunger stroke is properly adjusted. If it is not, the
plunger stroke must be readjusted (see section 4.5.2).
5.2.3 - Every year
- Motor bearing (NDE) maintenance : open drain plug (363).
Grease with original grease at point G1 (grease nipple).
Screw drain plug (363) at the end of the operation.
5.2.4 - Every five years
- Divertor sheave bearing maintenance : Unscrew the two
plugs G4 . Replace one of them by a grease nipple. Grease
with 70 to 75 g of the original grease. Put the two plugs G4
back at the end of the operation.
- Traction sheave bearing (DE) maintenance : grease with
original grease at point G2 and G3 . See table "Grease
quantity per bearing".
6 - ORDERING SPARE PARTS
To ensure efficient after-sales service, each order for spare parts should specify the following elements :
- motor type and serial n°
And for each part:
- part description and (or) identification n°,
- quantity ordered.
For instant identification, please give the reference of the document used for ordering (plan or manual number). Details of the type
and serial number appear on the motor identification plate.
PARTS
PERIODICITY
1 month 6 months 1 year every 5 years
Inspection and adjustments
Bolts and nuts tightening ●
Noise & vibration inspection ●
Brake springs adjustment ●
Plunger stroke ●
Greasing
Points OG1G2-3-4

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INSTALLATION AND MAINTENANCE
X20 – 30 – 36 – AC GEARLESS
LEROY-SOMER
3141 en - 02.1999/ a
SHEAVE LUBRICATING-POINT
Rep. Qty Designation
G4 2 Square head plug
Secondary sheave
G4 G4
PART LIST
Rep. Qty Designation Rep. Qty Designation
28 1 Sheave and drum 151 2 Torque adjustment counter nut
31 2 Brake arm 168 1 Blower motor
41 2 Airgap adjustment screw 176 2 Plunger
42 2 Torque adjustment spring 177 2 Rubber
45 2 Adjustment nut 272 2 Microswitch
52 2 Brake lever 301 1 Rotor
55 2 Airgap adjustment counter nut 363 1 Drain plug
63 2 Torque adjustment screw G1 1 Greaser
80 2 Brake cover plate G2 2 Square head plug
83 2 Brake cover G3 1 Greaser
90 2 Plunger stop O 4 Lubricating-point
92 2 Plunger axle DE 1 Drive end bearing
96 2 Brake coil NDE 1 Non drive end bearing
148 1 Stator FF 1 Front frame bearing
F1Filter

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INSTALLATION AND MAINTENANCE
X20 – 30 – 36 – AC GEARLESS
LEROY-SOMER
3141 en - 02.1999/ a
DRAWINGS
Fig. 5

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INSTALLATION AND MAINTENANCE
X20 – 30 – 36 – AC GEARLESS
LEROY-SOMER
3141 en - 02.1999/ a
Fig. 6

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INSTALLATION AND MAINTENANCE
X20 – 30 – 36 – AC GEARLESS
LEROY-SOMER
3141 en - 02.1999/ a

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INSTALLATION AND MAINTENANCE
X20 – 30 – 36 – AC GEARLESS
LEROY-SOMER
3141 en - 02.1999/ a

LEROY-SOMER 16015 ANGOULÊME CEDEX - FRANCE
RCS ANGOULÊME N° B 671 820 223
S.A. au capital de 62 779 000 €
www.leroy-somer.com