Leroy-somer E27 series Maintenance and service guide

E27 Gearless

Installation & maintenance

Permanent magnet

synchronous motor for lifts

Part number: 5323 en - 2018.04 / c

E27 Gearless - Installation and maintenance

5323 en - 2018.04 / c

Dear Customer,

You have just acquired a Leroy-Somer Gearless motor.

This motor benets from the experience of one of the largest manufacturers in the world, using state-of-

the-art technology in automation, specially selected materials and rigorous quality control. As a result,

the regulatory authorities have awarded our motor factories the ISO 9001, Edition 2008 international

certicate.

We thank you for making this choice, and would ask you to read the contents of this manual.

By observing a few essential rules, you will ensure problem-free operation for many years.

Moteurs Leroy-Somer

NOTE:

Leroy-Somer reserves the right to modify the characteristics of its products at any time in order to

incorporate the latest technological developments. The information contained in this document may

therefore be changed without notice.

This document is the property of Moteurs Leroy-Somer.

It may not be reproduced in any form without prior authorization.

All brands and models have been registered and patents applied for.

INTRODUCTION

E27 Gearless - Installation and maintenance

5323 en - 2018.04 / c

CONTENTS

EC DECLARATION OF CONFORMITY AND INCORPORATION ........................................................................... 4

IMPORTANT WARNING .......................................................................................................................................... 5

1 - GENERAL INFORMATION .................................................................................................................................. 6

2 - RECEIPT & IDENTIFICATION ............................................................................................................................. 6

3 - ENVIRONMENT ................................................................................................................................................... 6

4 - STORAGE............................................................................................................................................................ 6

4.1 - Storage conditions....................................................................................................................................... 6

4.2 - Prolonged storage (> 3 months)................................................................................................................... 7

5 - INSTALLATION.................................................................................................................................................... 7

5.1 - Before installation ........................................................................................................................................ 7

5.2 - General recommendation ............................................................................................................................ 7

5.3 - Mechanical installation................................................................................................................................. 7

5.3.1 - Lifting the motor..................................................................................................................................................... 7

5.3.2 - Installing the motor ................................................................................................................................................ 8

5.3.3 - Traction ropes ....................................................................................................................................................... 8

5.3.4 - Ropes guard ......................................................................................................................................................... 9

5.3.5 - Optional ................................................................................................................................................................ 9

5.4 - Electrical connection using the cables supplied by Leroy-Somer................................................................. 9

5.4.1 - Wiring the motor, the thermal sensor and the encoder .......................................................................................... 9

5.4.2 - Wiring the brakes................................................................................................................................................. 10

5.4.3 - Earth connection ................................................................................................................................................. 10

5.5 - Details of the wire for the connection of the cables to the electrical cabinet................................................ 11

5.6 - Electrical connection using your own cables.............................................................................................. 12

5.6.1 - Reference of the connectors and contacts........................................................................................................... 12

5.6.2 - Recommendation................................................................................................................................................ 13

5.7 - Switching status of the microswitches........................................................................................................ 13

6 - SHORT-CIRCUITING OF THE PHASES ........................................................................................................... 13

7 - COMMISSIONING.............................................................................................................................................. 13

8 - MAINTENANCE ................................................................................................................................................. 13

8.1 - Bearings .................................................................................................................................................... 13

8.2 - After one month’s operation....................................................................................................................... 13

8.3 - After an emergency stop............................................................................................................................ 13

8.4 - Every year.................................................................................................................................................. 13

9 - APPENDIX 1....................................................................................................................................................... 13

9.1 - Failsafe brakes : ALZOLA, INTORQ and MAYR ........................................................................................ 15

E27 Gearless - Installation and maintenance

5323 en - 2018.04 / c

E27 Gearless - Installation and maintenance

5323 en - 2018.04 / c

These symbols appear in this document whenever it is important to take special precautions

during installation, operation, maintenance or servicing of the motors.

It is essential that electric motors are installed by experienced, qualied and authorized personnel.

In accordance with the main requirements of EEC Directives, the safety of people, animals and property

should be ensured when tting the motors into machines.

Particular attention must be given to equipotential ground or earthing connections.

The following preliminary precautions must be taken before working on any stationary

device:

• Mains voltage disconnected and no residual voltage present

• Careful examination of the causes of the stoppage

(jammed transmission - loss of phase - cut-out due to thermal protection, etc)

Even when not supplied with power, there is voltage at the terminals of a rotating

synchronous motor with magnets.

Accordingly, before carrying out any work check carefully that the motor is not

rotating.

The short-circuiting of the phases is not allowed to manage the rescue operation of

the lift.

For dismantling the E27 motor only

Assembly or maintenance of the rotor must not be carried out by people with pacemakers or

any other implanted medical electronic device.

The motor rotor contains a powerful magnetic eld. When the rotor is separated from the

motor, its eld may affect pacemakers or disturb digital devices such as watches, mobile

phones, etc.

IMPORTANT WARNING

GENERAL INFORMATION

E27 Gearless - Installation and maintenance

5323 en - 2018.04 / c

1 - GENERAL INFORMATION

1.1 - Warning

To ensure that the Leroy-Somer Gearless E27 you have just

purchased is entirely satisfactory, it is essential to adhere to

the following instructions.

WARNING

Contact with energized or rotating parts may cause injury.

WARNING

Do not touch the housing of a motor during operation, as it

can reach high temperatures.

Reminder: installation, servicing and maintenance must only

be carried out by qualied personnel.

Failure to follow the instructions in this document or to apply

them correctly, releases the manufacturer from responsibility.

The product is covered by the warranty as long as any

partial or total dismantling has only been performed with the

assistance of Leroy-Somer (or its approval).

WARNING

Check that the lift car has been immobilized before performing

any work on the motor or the brakes.

1.2 - Application

E27 motor is designed as a gearless drive for elevators.

No other drive application is permitted without a written

agreement from Nidec / Leroy-Somer.

E27 motor is a permanent magnet synchronous motor. Due

to its very compact design, E27 is ideal for applications in

machine roomless elevators

2 - RECEIPT & IDENTIFICATION

Inspect the machine as soon as it is received. If there is any

damage that has been caused during transportation, contact

immediately the carrier.

As soon as you receive the machine, check that the nameplate

on the machine conforms to your order, see details below.

3 - ENVIRONMENT

The rated characteristics are given for operation in a standard

environment (see IEC 600034-5):

- altitude less than 1000 m

- maximum relative humidity < 60%

- temperature between 0 and 40°C

Derating data can be provided if special conditions are

indicated at the time when the equipment is ordered.

4 - STORAGE

4.1 - Storage conditions

The gearless should be stored in a horizontal position.

The location must be dry and protected from harsh weather

conditions, cold (temperature above -15°C), frequent

temperature variations (to prevent the risk of condensation)

and free from vibration, dust and corrosive gases.

If there is any vibration in the storage area, it is advisable to

rotate the driving sheave at least twice a month (supply power

to the brakes in order to be able to turn the sheave).

For certain transport conditions the grooves of the driving

sheave are protected by a special varnish. This varnish must

not be removed during storage.

Motor nameplate

Maximum load authorized on the sheave

Gearless type

Motor serial number

Motor weight

Rated motor current

Rated motor voltage

Rated motor speed

Rated braking torque Rated braking voltage Rated brake current

Rated motor power

INSTALLATION

E27 Gearless - Installation and maintenance

5323 en - 2018.04 / c

4.2 - Prolonged storage (> 3 months)

- Place the machine in a sealed waterproof enclosure with

a dehydrating bag inside corresponding to the volume to be

protected and the degree of humidity of the location.

- The bearings which can not be regreased must be replaced

after a storage longer than 3 years.

5 - INSTALLATION

5.1 - Before installation

If the equipment has been stored for several months, it is

essential to check the correct insulation between the phases

and the earth terminal on the motor (minimum 100 MΩ at

500 V D.C. for 60 seconds) after having disconnected all the

electronic circuits if necessary.

Do not apply the megohmmeter to the terminals of the

thermal sensors as this may damage them.

If the required value is not reached, dry the motor using

internal or external heating.

Drying using external heating

- Place the motor in an oven at 70°C for at least 24 hours until

the correct insulation is obtained (100 MΩ).

- Take care to increase the temperature gradually to clear the

condensation.

- After drying at ambient temperature during the cooling

phase, check the insulation value regularly, as it will initially

tend to fall, then rise.

Drying using internal heating (drawing 1)

- Connect motor windings V1 and W1 in parallel in relation

to U1.

- Read off the resistance between U and V//W.

- Apply a low voltage D.C. current to them (to obtain 10% of

the rated current calculated using the winding resistances),

then increase the voltage until 50% of the rated current is

reached

- Maintain the power for 4 hours. The temperature of the

motor should increase slightly.

If the brakes are released, the sheave will move

slightly on power-up (angular setting of the rotor in

relation to the stator).

U1 Idc < 50% In

Udc

V1 W1

Drawing 1

Winding connections

for drying using

internal reheating

5.2 - General recommendation

The installation must comply with the motor characteristics

indicated on the nameplate (see section 1).

It must include electrical safety devices.

Check that the handling equipment (slings, etc.) is suitable

for the weight of the machine.

Use the attachment points provided on the machine.

Check that the cables are correctly positioned so that they

are not damaged.

Provide the necessary mechanical protection devices to

prevent people working on the machine becoming caught or

trapped by the sheave and/or the cables.

During building works, we recommend to protect the brakes

and micro-switches against dust (by wrapping them into a

shrink lm for example). If the site is permanently subject to

dust, we recommend to t the brakes cover available as an

option.

The motors must be installed in such a way that the cooling

air (not too damp, dust-free, and containing no corrosive

gases or vapors) circulates freely.

For the ease of access to the encoder, we recommend to

install the motor with a minimum distance of 200mm between

the cast iron cover protecting the encoder and the wall of the

elevator shaft.

5.3 - Mechanical installation

5.3.1 - Lifting the motor

Pic. 3 : Lifting the motor (for illustration only)

Weight of the motor (kg)

E27S E27M E27L

93 kg 106 kg 167 kg

INSTALLATION

E27 Gearless - Installation and maintenance

5323 en - 2018.04 / c

5.3.2 - Installing the motor

The Gearless motor must be installed on a chassis that is not

subject to vibration and must be secured using 4 M12 screws

class 8.8.

The permissible unevenness of the chassis is 1 mm.

Due to the mechanical construction of the motor, this is

mandatory to use the isolation pads supplied for the xing of

the motor onto the chassis (2 rectangular pads to be installed

under the motor feet and 4 round pads to be installed under

the chassis).

4 x Screw M12 x L (not supplied)

2 x Top pads (LSY160-1-237)

4 x Bottom pad (GIR130-1-47)

The mounting principle is as follows:

Gearless

Top pad

Frame

Bottom pad

Screw M12 x L (not supplied)

The chassis must be drilled as follows:

W = 150 ±0.5 (E27S/M)

W = 170 ±0.5 (E27L)

60 mini

240 mini

31±0.3

175 ±0.5

Common area

Motor type

W (mm)

E27S

150 +/- 0,5

E27M

150 +/- 0,5

E27L

170 +/- 0,5

The xing screws (not supplied) must be tightened once the

traction ropes and the traction sheave are perfectly aligned

and once the full load is applied onto the traction sheave.

After contact of the screw’s head with the metallic washer,

tighten of 1 turn with a tolerance of 0/+¼ of turn.

For securing the xing screws, use a thread locking glue (low

or mid strength) applied onto the 10mm of the screw end or

a mechanical seal on the screws heads (linking two screws).

Below are the recommended screw’s lengths depending on

the thickness of the chassis:

Thickness

of the chassis 6 to 8 mm 10 to 12 mm < or = 16

Screw length 50 or 55 mm 55 or 60 mm 60 or 65 mm

5.3.3 - Traction ropes

Check that the traction ropes are of correct type for the

sheave of the motor.

The rope pull must be vertical.

If the number of grooves available on the traction sheave is

higher than the number of ropes installed then the ropes must

be centered on the sheave.

Positioning of the traction ropes

The motor’s xing screws must not be loaded with a shearing

force.

YES

INSTALLATION

E27 Gearless - Installation and maintenance

5323 en - 2018.04 / c

The direction of the force applied onto the traction sheave

must be vertical and must be perpendicular to the motor feet.

the force applied must compress the isolation pads.

5.3.4 - Ropes guard

When the ropes have been installed, t the ropes guard system.

Ropes guard system: 2 blades

2 screws HM8 x 16

2 washers 8-22/2

Installation:

- Use one of the 3 appropriate holes on the blade, depending

on ropes wrapping angle on the sheave (centered one in the

most of case).

- Screw one blade on each side of the sheave, using the 2

threated holes on motor housing.

- Use Loctite 242 (or equivalent) on the tap of each bolt

- Adjust the distance between blade and sheave:

distance < 0.8 rope diameter.

- Tighten at a torque of 15 N.m +/- 10%.

There is a high risk of jamming your ngers

between the cables and the sheave.

5.3.5 - Optional

Protection device for sheave and/or brake.

E27 motor is available with 2 additional options:

- Protection device for sheave

- Protection device for brake

Sheave protection Brake protection

Installation:

When the ropes have been installed, t the protection device

for sheave or for brake.

Sheave or brake protection device: 1 cover blade

2 screws HM8 x 16

2 washers 8-22/2

- Screw the cover blade, using the 2 threated holes on brake

support.

- Use Loctite 242 (or equivalent) on the tap of each bolt

- Tighten at a torque of 15 N.m +/- 10%.

There is a high risk of jamming your ngers

between the cables and the sheave.

5.4 - Electrical connection using the

cables supplied by Leroy-Somer

5.4.1 - Wiring the motor, the thermal sensor

and the encoder

Remove the cover using a Torx screwdriver or key, reference

TX 30.

When working on the encoder please follow the below

recommendation:

YES

INSTALLATION

E27 Gearless - Installation and maintenance

5323 en - 2018.04 / c

Once the connections are done, ret:

- the encoder protection cover using a at screwdriver,

- the main cover making sure that the electrical cables are

correctly positioned in the cover openings. Thightening

torque : 8N.m.

5.4.2 - Wiring the brakes

For wiring the brakes, please refer to the nameplate applied

onto the brakes and to the appendix 1 of this manual.

The grounding of the cable shielding is done

using the metal clamps.

5.4.3 - Earth connection

Connect the earth using the dedicated terminals on both

motor and brakes.

The grounding of the cable

shielding is done

using the metal clamps

ALZOLA brake

The encoder protection cover

is retted

Details of the connections

Motor power fast

connector

Cover to remove

to access to

the encoder

connector

Metal clamp

for power cable

grounding

Thermal sensor

fast connector

Metal clamp for

thermal sensor

cable grounding

INTORQ brake

MAYR brake

INSTALLATION

E27 Gearless - Installation and maintenance

5323 en - 2018.04 / c

5.5 - Details of the wire for the connection of the cables to the electrical cabinet

FOR ALL E27 TYPE

Motor side

Connector

Type of cable

Electrical cabinet side

Green/Yellow

Power cable

Green/Yellow

Ground

Black

Brown

Blue or grey

Black

Thermal sensor

cable

Brown

PTC

Black

White

Encoder cable

Cos

CosRef

Sin

SinRef

Data

Data\

Clock out

Clock out\

+5V

FOR E27S, M and L (ALZOLA brakes)

Wires from

brake/motor

Connector Type of cable

Wires for electrical

cabinet connexions

Red

Purple

Microswitch NC

Black

Dark blue

Red

Brown

Blue

Brake coil

Blue

Pink

Brake coil

Red

Brakes cable

Grey

Microswitch NC

Black

Yellow

Dark blue

Green

Brown

Brake coil

Blue

White

Brake coil

FOR E27S AND E27M (Intorq brakes)

Wires from

brake/motor

Connector Type of cable

Wires for electrical

cabinet connexions

Grey

Purple

Microswitch NC

Black

Dark Blue

Red

Blue

Brake coil

Black

Pink

Brake coil

Grey

Brakes cable

Grey

Microswitch NC

Black

Yellow

Dark Blue

Green

Blue

Brown

Brake coil

Black

White

Brake coil

FOR E27L (Mayr brakes)

Wires from

brake/motor

Connector Type of cable

Wires for electrical

cabinet connexions

Grey

Purple

Microswitch NC

Black

Blue

Red

Brown

Blue

Brake coil

Dark Blue

Pink

Brake coil

Grey

Brakes cable

Grey

Microswitch NC

Black

Yellow

Blue

Green

Brown

Brake coil

Dark Blue

White

Brake coil

INSTALLATION

E27 Gearless - Installation and maintenance

5323 en - 2018.04 / c

5.6 - Electrical connection using your own cables

5.6.1 - Reference of the connectors and contacts

Motor side Customer side

Connector Reference

Green/Yellow Ground Connector: TECO

ELECTRIC

1-480702-0 or

equivalent

Contacts : MNL

926884-1

Black U1

Brown V1

Blue W1

Black

PTC

Connector: MOLEX

ref.: 39-01-3028

Contacts : MOLEX

série 5556 or TECO

ELECTRIC ref. :

0-350777-1

Black

2a Cos 2a Cos

5b CosRef 5b CosRef

4a Sin 4a Sin

3b SinRef 3b SinRef

6b Data 6b Data

1a Data\ 1a Data\

- -

2b Clock out 2b Clock out

5a Clock out \ 5a Clock out \

1b +5V 1b +5V

4b 0V 4b 0V

- -

See colors

depending on

brake

manufacturer,

in 4.5

Brakes coil

Wago ref. 231-205 /

037-000

Brakes coil

Microswitch NO

Brakes coil

Microswitch NO

SHORT-CIRCUITING OF THE PHASES

E27 Gearless - Installation and maintenance

5323 en - 2018.04 / c

5.6.2 - Recommendation

Connect the motor using cables of the correct cross-section

Nominal

current per

phase (A)

9.5 12 16

Min. cable

cross-section

(mm²)

1.5 1.5 2.5

The cable shielding must be connected to earth, see section 4.4.

It is the responsibility of the user to connect the motor in accordance with the current legislation and regulations in the country of

use. This is particularly important as regards the size of the cables, the type and size of fuses, the earth or ground connection,

powering down, acknowledging insulation faults and protection against overcurrents.

The table above is given for information only and must under no circumstances be used in place of the current standards.

The recommended cross-sections are given for a single-wire cable, with a maximum length of 10m. Above this, line drops due to

the cable length must be taken into account.

5.7 - Switching status of the microswitches

Contact

Colors of the wires

Brake

released

Microswitch

closed

Connector

tted onto the

brakes

Cables

supplied by

Leroy-Somer

contact Black / Grey Yellow/Grey YES NO

Black/Purple NO YES

contact

Black/ Dark

Blue

Yellow/Green YES YES

Black/Red NO NO

6 - SHORT-CIRCUITING OF THE PHASES

The short-circuiting of the phases is not allowed to manage the rescue operation of the lift

COMMISSIONING

E27 Gearless - Installation and maintenance

5323 en - 2018.04 / c

7 - COMMISSIONING

Check that the electrical equipment is correctly earthed

before starting work.

Before commissioning the machine, check that all the xings

and electrical connections are correctly tightened.

During commissioning, check for noise and vibration and

monitor the current and voltage on the machine while it is

operating at rated load.

8 - MAINTENANCE

8.1 - Bearings

The bearings do not require any maintenance as they are

greased for life.

8.2 - After one month’s operation

- Check that the screws and electrical connections are

correctly tightened.

- Check that there is no abnormal noise. Check the vibration.

We recommend to stop the lift in case of tangible vibration

and to control the complete installation.

- Check the brakes airgap. Please refer to the appendix 1 of

this manual.

8.3 - After an emergency stop

Check the brakes airgap. Please refer to the appendix 1 of

this manual.

8.4 - Every year

Same as section 8.2.

9 - APPENDIX 1

9.1 - Failsafe brakes

See following pages

Moteurs Leroy-Somer

Headquarter: Boulevard Marcellin Leroy - CS 10015

16915 ANGOULÊME Cedex 9

Limited company with capital of 65,800,512 €

RCS Angoulême 338 567 258

www.leroy-somer.com

1 / 31

DATE OF CREATION: 18/03/2013

REACH: EVO-01/EVO-05

DATE OF REVIEW: 25/10/2016

REVIEW: ES10

INSTALLATION

MANUAL FOR

EVO BRAKES

2 / 31

ÍNDICE

1 SAFETY INSTRUCTIONS: ...................................................................................................................3

1.1 Symbols used:...............................................................................................................................3

1.2 General instructions: .....................................................................................................................3

2. PRODUCT DISCRIPTION: ...................................................................................................................3

2.1. Operating principle: .......................................................................................................................3

2.2. Labelling: .......................................................................................................................................4

2.3. Physical dimensions:.....................................................................................................................5

2.4. General characteristics: ................................................................................................................ 6

2.5. Available toothing:.........................................................................................................................6

2.6. Product reception: .........................................................................................................................7

2.7. Warranty:.......................................................................................................................................7

2.8. Legal regulations:..........................................................................................................................7

3 MECHANICAL INSTALLATION:...........................................................................................................8

3.1 Before starting:..............................................................................................................................8

3.2 Tools:.............................................................................................................................................8

3.3 Installation: ....................................................................................................................................8

3.4 Screw torques: ..............................................................................................................................9

3.5 Shipping screws: ...........................................................................................................................9

3.6 Positioning the rubber dust cover: ..............................................................................................10

3.7 Positioning the manual release lever: .........................................................................................11

4 ELECTRIC INSTALLATION:...............................................................................................................16

4.1 Before starting:............................................................................................................................16

4.2 Tools:...........................................................................................................................................16

4.3 Brake connection: .......................................................................................................................17

4.4 Detector connection (micro-switches):........................................................................................17

5 OPERATIONAL CHECK:....................................................................................................................18

6 MAINTENANCE: .................................................................................................................................18

6.1 Air-gap verification:......................................................................................................................19

6.2 Detector verification:....................................................................................................................19

6.3 Winding verification: ....................................................................................................................20

7 SPARE PARTS: ..................................................................................................................................20

7.1 Disc replacement: .......................................................................................................................20

7.2 Replacement and adjustment of detectors (micro-switches):.....................................................22

7.3 Replacement of the manual release lever: .................................................................................28

8 POTENTIAL FAILURES:.....................................................................................................................29

2 / 31

ÍNDICE

1 SAFETY INSTRUCTIONS: ...................................................................................................................3

1.1 Symbols used:...............................................................................................................................3

1.2 General instructions: .....................................................................................................................3

2. PRODUCT DISCRIPTION: ...................................................................................................................3

2.1. Operating principle: .......................................................................................................................3

2.2. Labelling: .......................................................................................................................................4

2.3. Physical dimensions:.....................................................................................................................5

2.4. General characteristics: ................................................................................................................6

2.5. Available toothing:.........................................................................................................................6

2.6. Product reception: .........................................................................................................................7

2.7. Warranty:.......................................................................................................................................7

2.8. Legal regulations:.......................................................................................................................... 7