WITTUR WSG-25 Manuale utente

WSG-25

No part of this publication may be reproduced

or translated, even in part, without prior written

permission from WITTUR.

Subject to change without notice!

Nachdruck, Übersetzung und Vervielfältigung in

jeglicher Form - auch auszugsweise - bedürfen der

schriftlichen Genehmigung von WITTUR.

Änderungen vorbehalten!

info.wed@wittur.com

www.wittur.com

GEARLESS LIFT MACHINE

Code GM.8.002673.EN

Version 0.13a

Date 07. May 2019

OPERATING INSTRUCTIONS

Translation of the Original Operating Instructions

Subject to changes without notice ! Änderungen vorbehalten !

Gearless Lift Machine

WSG-25

Operating Instructions

Code: GM.8.002673.EN

Date: 07. May 2019

Version: 0.13a

Page: 2

Offenburger Str. 3

D-01189 Dresden

Germany

Tel.: +49 (0) 351-40 44-0

Fax: +49 (0) 351-40 44-111

info.wed@wittur.com

www.wittur-edrives.de

These operating instructions are

applicable to lift machines:

WSG - 25.1- ......

WSG - 25.2- ......

date: 07. May 2019 version: 0.13a

WITTUR Electric Drives GmbH reserves the right to correct

or change the contents of this manual and these product

details without prior notice. We expressly reserve the right

to make technical changes which improve the lift machines

or their safety standards without prior notice. No liability

can be accepted for damage, injuries or expense arising

therefrom. We cannot guarantee the correctness and

completeness of the details.

Document history

Date Version Modications

30. Apr 2019 0.13 Complete revision; supplement of individual check of brake functionality; installation of the remote control by

Bowden cable for old and new systems

07. May 2019 0.13a Several minor bug xes

Subject to changes without notice ! Änderungen vorbehalten !

Gearless Lift Machine

WSG-25

Operating Instructions

Code: GM.8.002673.EN

Date: 07. May 2019

Version: 0.13a

Page: 3

Contents

1. General information 4

1.1. About this operating manual 4

1.2. Intended use 4

1.3. Scope of delivery 4

1.4. Warranty and liability 4

2. Safety 5

2.1. General safety instructions 5

2.1.1. Qualied personnel 5

2.1.2. Format of the safety instructions 5

2.2. Safety precautions 5

3. EU Declaration of Conformity 6

4. Handling 7

4.1. Transport and storage 7

4.2. Storage 7

4.3. Disposal 7

5. Product overview 8

5.1. Product description 8

5.2. Permissible ambient conditions 9

5.3. Motor design 9

5.3.1. Insulation system 9

5.3.2. Motor connection / Winding protection / Fan 10

5.3.3. Speed/Position measuring system 11

5.3.4. Brake 12

5.5. Type code 15

6. Installation 16

6.1. Mechanical installation 16

6.2. Electrical installations 17

6.3. Overview 17

7. Commissioning and operating 18

7.1. Important notes 18

7.2. Emergency evacuation 19

7.3. Testing the brake system to EN 81 20

7.4. Trouble shooting 21

8. Maintenance 22

8.1. General 22

8.2. Maintenance intervals 22

8.3. Regreasing the bearings 23

8.4. Fan lter mats 24

8.5. Individual check of the brake function 25

8.6. Replacing the measuring system 26

9. Technical data 27

10. Dimension drawing WSG-25.1/2 with traction sheave dia. 530 mm 28

11. Dimension drawing WSG-25.1/2 with traction sheave dia. 650 mm 29

12. Accessories 30

12.1. Connecting cable for measuring systems for ECN 1313 and ERN 1387 30

12.2. Cable set for motor and brake 31

12.3. Rope clamp 31

12.4. Remote brake control by Bowden cable 32

12.4.1.Installation for new systems 32

12.4.2.Installation when retrotting systems 34

12.5. Return motion device 36

13. Spare parts 38

14. Annex 39

Calculation of the traction sheave shaft WSG-25 39

EU type-examination Certicate EU-BD 908 41

Brake operating instructions 47

Subject to changes without notice ! Änderungen vorbehalten !

Gearless Lift Machine

WSG-25

Operating Instructions

Code: GM.8.002673.EN

Date: 07. May 2019

Version: 0.13a

Page: 4

1. General information

1.1. About this operating manual

The purpose of this operating manual is to ensure that any work on WSG-25 lift machines is carried out safely. Please

regard it as part of the product and keep it within easy reach.

All persons working on or with WSG-25 lift machines must have read and understood this operating manual.

1.2. Intended use

WSG-25 lift machines are intended for use as gearless drives for rope lifts and they must never be connected directly to

the mains supply. They may only be used for their intended purpose and with all safety devices in proper working order.

WSG-25 lift machines are intended for use in an enclosed, lockable operating area to which only qualied personnel and

personnel authorised by the customer have access.

WSG-25 lift machines may only be operated under the conditions described in this manual and with due regard to their

performance limits.

WSG-25 lift machines are not ready-to-use products; they may only be operated after they have been installed in lift

systems and their safe operation has been ensured by taking the appropriate measures.

1.3. Scope of delivery

The WSG-25 lift machines are customised to meet individual requirements. The exact scope of delivery can be found in

the accompanying documentation.

1.4. Warranty and liability

Our „Conditions of Sale and Delivery“ shall apply for all our supplies and services.

Any warranty claims must be made immediately upon discovery of the deciency or defect.

We do not accept any warranty or liability claims for personal injury or property damage resulting from one or more of the

following causes:

•Improper use of the WSG-25 lift machine

•Improper installation, commissioning, operation or maintenance

•Operation of the WSG-25 with defective and/or inoperative safety or protective devices

•Non-compliance with the instructions contained in the operating manual or other documentation supplied

•Unauthorised construction modications to the WSG-25

•Insufcient monitoring of parts subject to wear

•Repairs carried out improperly

•Emergencies caused by external forces or force majeure.

Subject to changes without notice ! Änderungen vorbehalten !

Gearless Lift Machine

WSG-25

Operating Instructions

Code: GM.8.002673.EN

Date: 07. May 2019

Version: 0.13a

Page: 5

2. Safety

2.1. General safety instructions

2.1.1. Qualied personnel

Only qualied personnel are authorised to perform any planning, installation or maintenance work, and this must be done

in accordance with the relevant instructions. The personnel must be trained for the job and must be familiar with the

installation, assembly, commissioning and operation of the product.

2.1.2. Format of the safety instructions

The safety instructions contained in this operating manual are presented in a standardised format.

They comprise a danger symbol + signal word + instruction text. The danger symbol indicates the type of danger, the

signal word species the severity of the danger, and the instruction text describes the danger and explains how to avoid it.

Danger symbols

GEFAHR

Risk of electric shock

ACHTUNG

Property damage

WARNUNG

General danger

Hinweis

Information

Signal words

•DANGER Serious injuries or death will result.

•WARNING Serious injuries or death may result.

•CAUTION Minor to moderate injuries may result.

•NOTICE Property damage may result.

•Information Points out useful information.

2.2. Safety precautions

•Check the proper functioning of the motor and the brake after installing the machine.

•Repairs may only be carried out by the manufacturer or an authorised repair agency. Unauthorised opening and

tampering may result in injuries to persons and property.

•The machines are not designed for direct connection to the three-phase system but are to be operated via an

electronic frequency inverter. Direct connection to the mains may damage the motor beyond repair.

•High surface temperatures may occur on the external parts of the machine. Therefore, no temperature-sensitive parts

may be in contact with these parts or attached to them. Protection against accidental contact should be provided, if

required.

•The EU type-examined fail-safe brakes provided are designed only for a limited number of emergency braking

operations. They must not be used as working brakes.

•If the motor is not energised, no torque is produced. This may result in uncontrolled acceleration of the lift, if the

brakes are released. Therefore, the motor winding should be short-circuited to produce a speed-dependent braking

torque while the motor is not supplied with current. (Use the main contacts for short-circuiting as rated motor current

may be owing.) The motor must never be short-circuited while it is energised.

•High voltages are present at the terminal connections during the operation of synchronous motors.

Subject to changes without notice ! Änderungen vorbehalten !

Gearless Lift Machine

WSG-25

Operating Instructions

Code: GM.8.002673.EN

Date: 07. May 2019

Version: 0.13a

Page: 6

3. EU Declaration of Conformity

Subject to changes without notice ! Änderungen vorbehalten !

Gearless Lift Machine

WSG-25

Operating Instructions

Code: GM.8.002673.EN

Date: 07. May 2019

Version: 0.13a

Page: 7

4. Handling

4.1. Transport and storage

•Climate class: 2K3 according EN 60721

•Transport temperature: -20°C bis +60°C, max. 20 K/hour uctuated

•Transport air humidity: max. relative humidity 85 % at 20°C (no moisture condensation)

•The lift machines leave the factory in perfect condition after being tested. Make a visual check for any external

damage immediately upon their arrival on site. If any damage is found to have occurred in transit, make a notice of

claim in the presence of the carrier. If appropriate, do not put these machines into operation.

•Observe the relevant safety regulations and take the centre of gravity into account when handling the lift machines.

•Do not expose the motor to any shocks or impact.

•Check that the eyebolts are tightly tted before using them and use only suitable lifting equipment.

WARNING

fThe eyebolts are designed for the specied machine weight, i.e. additional loads must not be applied. Danger of

breakage!

4.2. Storage

•Climate class: 2K3 nach EN 60721

•Storage temperature: -20°C to +60°C, max. 20 K/hour uctuated

•Storage air humidity: max. relative humidity 85 % at 20°C (no moisture condensation)

•Store the motors only in closed, dry, dust-free, well-ventilated and vibration-free rooms. Do not store lift machines in

the open air. Bright parts are not sufciently preserved to withstand extended periods of exposure.

NOTICE

fAvoid excessive storage periods (recommendation: max. one year).

fAfter prolonged storage (>3 months), rotate the motor in both directions at a low speed (< 20 min-1) to allow the

grease to distribute evenly in the bearings. The ropes must not be tted.

•Measure the insulation resistance before initial operation of the machine. If the value has dropped below 1 kΩ per volt

of rated voltage, the winding needs to be dried (insulation meter voltage: 1,000 V DC).

Unpacking

•Dispose of the packaging material in an environmentally friendly manner or reuse it.

•Any special transport aids or shipping braces are left with the customer.

4.3. Disposal

•The lift machines consist of different materials. A waste separation of those different material components has to be

done.

•The disposal must be professional and environmentally friendly according to law.

Subject to changes without notice ! Änderungen vorbehalten !

1 2 345 6 87 9 10 11 12 13 14 15 16

Gearless Lift Machine

WSG-25

Operating Instructions

Code: GM.8.002673.EN

Date: 07. May 2019

Version: 0.13a

Page: 8

5. Product overview

5.1. Product description

The compact gearless WSG-25 synchronous lift machines are designed for traction sheave lifts. They are distinguished

by their high efciency, extremely low noise and excellent operating characteristics. The machines can be supplied for

several rated speeds.

The machine comprises a frame, the synchronous motor, the traction sheave, and the type-tested safety brakes, which

can be used to prevent uncontrolled upward movement of the car.

The nameplate of the lift machine is on the motor frame.

Type code of lift machine

Rated voltage

Rated frequency

Year and month of production

Serial no.

Rated speed

Rated torque

Weight

Item Part WSG-25

Bolts (2 x) DIN 933 - M 16 x 30

Washer (2 x) DIN 125-A17

Bolt DIN 933 - M 24 x 75

Lock washer NL 24-DIN 25201

Rope slip-off guard

Pressure disc

Rope slip-off guard (2 x)

Bolts (12 x) DIN 912-M20x90-12.9

Traction sheave

Brake hub

Brake BFK 466-61

Frame

Brake terminal box

Motor terminal box

Measuring system

Protective cover

Subject to changes without notice ! Änderungen vorbehalten !

Gearless Lift Machine

WSG-25

Operating Instructions

Code: GM.8.002673.EN

Date: 07. May 2019

Version: 0.13a

Page: 9

5.2. Permissible ambient conditions

•Ambient temperature: -5°C to +40°C

•Air humidity: max. relative humidity: 85% at 20°C (no moisture condensation)

•Install the machine so that ventilation is not obstruct and sufcient heat dissipation by convection and radiation must

be ensured.

Deviating ambient conditions

At higher temperatures or altitudes, the overload capability of the motors is reduced. In the case of a deviating altitude

and/or temperature, the reduction factors k shown in the following diagrams must be used.

30 40 50 60

0,6

0,7

0,8

0,9

1,0

tA [°C]

kϑ

0 1000 2000 3000 4000

0,6

0,7

0,8

0,9

1,0

[m]

Mpermiss = MdN * kϑ * kabzw. Ppermiss = PdN * kϑ * ka

5.3. Motor design

5.3.1. Insulation system

•All insulation materials used corresponds to the thermal class 155(F).

•The insulation system of the motors is designed such that they can be connected to a inverter with a maximum DC

link voltage Ulink max up to max. 700 V DC.

Information

fUlink max is the maximum value of the DC link voltage which is only transient and approximately equivalent to the

inception voltage of the braking chopper or of the energy recovery unit.

NOTICE

fThe maximum permissible rate of voltage rise (dU/dt) at the motor terminals is 4 kV/µs. The overvoltage at the

motor terminals must not exceed 1.56 kV. It may be necessary to use motor current lters or reactors to achieve

these values.

Subject to changes without notice ! Änderungen vorbehalten !

Gearless Lift Machine

WSG-25

Operating Instructions

Code: GM.8.002673.EN

Date: 07. May 2019

Version: 0.13a

Page: 10

5.3.2. Motor connection / Winding protection / Fan

•The electrical connection of the motor, the fan and the winding sensors is made in the motor terminal box on the

machine.

•The motor cable must be shielded. Ensure that the cable shield contacts the frame over a large area at both ends.

•The motor phases U1, V1 and W1 must be connected correctly to the corresponding phases of the inverter; they must

not be interchanged.

•We recommend using a inverter with a switching frequency of 8 kHz.

•The thermocouples installed in the winding such as PTC thermistor detectors and thermostatic switches must be

evaluated in the control system or frequency inverter to protect the motor from overtemperature.

•The separately driven fan must be properly connected and operated. If required, it can be switched in dependence of

the temperature by means of thermal switch S4 (relay must be used).

U1 V1 W1

υυυ

M10

(Z)

Separately driven fan

D2E 146 AZ03

PTC Thermistor T

3 x STM-150.ES... (150°C)

- embedded in motor winding

- for motor protection Thermostatic switch S 1

3 x S01.130.05... (130°C)

(250 V AC / 2,5 A / cos φ = 1)

- embedded in motor winding

- pre-warning overtemperature

Thermostatic switch S 4

1 x S01.60.05... (60°C)

(250 V AC / 2,5 A / cos φ = 1)

- embedded in motor winding

- e.g. for fan control

Terminal studs

M 10 (max. tightening

torque: 10 Nm)

M20x1,5 M50x1,5

U1 V1 W1

M20x1,5

Terminal strip for fan and winding protection connections

WAGO 260

cable cross section ... 1,5 mm2

stripping length required: 8 - 9 mm

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