Elevator Traction Machine Operation and Service Manual: Suzhou Torin Drive Equipment CO.,LTD [PDF]

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Elevator Traction Machine Operation And Service Manual S2019.2

SUZHOU TORIN DRIVE EQUIPMENT CO.,LTD.

Copyright Announce

SUZHOU TORIN DRIVE EQUIPMENT CO.,LTD. have the copyright of this instruction manual. Reprinting, translation or reproduction in any form whether in part or in full requires the prior written permission of our company, otherwise our company will reserves the right to went behind his responsibilities. SUZHOU TORIN DRIVE EQUIPMENT CO.,LTD. reserves the right to make changes in the information and pictures contained in this instruction manual without prior notice. The specification is always the latest edition, if the discovery is different from the product, please contact us for the corresponding edition of the instruction.

Daily maintenance instructions

◆ Regularly

check and timely cleaning oil or debris on the surface of the brake wheel and brake lining。 ◆Regularly check brake lining wear。 ◆Regularly check and maintenance,to ensure brake arm pin or brake pin shaft flexible rotation。 ◆Regularly check and maintenance,to ensure that the brake have a certain amount of space travel and flexible movements。 ◆ Regularly check whether there is any looseness of the external fasteners。 ◆ Regularly check the effectiveness of micro switch action。 ◆ Regularly check whether there is any looseness of the worm gear fasteners，worm gear pitting。 ◆Before the next run，to confirm whether the brake completely reset，after using a remote loose device。

Geared Traction Machine Operation And Service Manual

Contents 1.

2.

3.

General-usage to intended purpose .......................................4 1.1 Safety declaration......................................................4 1.2 Checking before usage ..............................................5 1.3 Operation conditions .................................................7 1.4 Installation ................................................................8 1.5 Transport and storage ................................................9 Electrical connection.......................................................... 14 2.1 General ................................................................... 14 2.2 Motor connection ................................................... 14 2.3 Brake and brake switch .......................................... 16 2.4 Jigger switch .......................................................... 19 2.5 Encoder connection.................................................20 2.6 Earthing.................................................................. 21 Operation and maintenance................................................ 22 3.1 General ................................................................... 22 3.2 Operating check ..................................................... 22 3.3 Lubrication instructions ......................................... 24 3.4 Brake operation device .......................................... 28 3.5 Machine maintenance ............................................ 30 3.6 Worm gear tooth surface pitting determination reference............................................................................. 35 3.7 Sheave rope groove wear and replacement sheave determination reference ..................................................... 38 3.8 Trouble shooting .................................................... 41

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Geared Traction Machine Operation And Service Manual

4.

Brake system ...................................................................... 45 4.1 General ................................................................... 45 4.2 Brake system adjustment ....................................... 46 4.2.1 Apply machines: YJ125 、 YJ200 、 YJ240B 、 FYJ245、YJ245D、YJ275、YJ320、YJ150 ...................51 4.2.1.1 Brake force adjusting.......................................51 4.2.1.2 Brake shoes adjusting......................................52 4.2.1.3 Brake clearance adjusting ...............................52 4.2.1.4 Brake synchronization adjusting .....................53 4.2.2 Apply machines:FYJ180、FYJ200 ....................53 4.2.3 Apply machine: YJ110 .........................................55 4.2.4 Apply machine: YJ140 .........................................57 4.2.5 Apply machines: YJ410 ..................................... 59 4.3 Inspection and maintenance ................................... 61 4.4 Dismantling and assembly ..................................... 63

5.

2

4.4.1 Apply machines: YJ125、YJ140、YJ200、YJ240B、 FYJ245、YJ245D、YJ275、YJ320、YJ410、YJ150 .... 64 4.4.2 Apply machines:FYJ180、FYJ200 ....................67 4.5Brake system maintenance ........................................... 69 Three-phase asynchronous motor .......................................74 5.1 Overview .................................................................74 5.1.1 YTTD series....................................................74 5.1.2 YTD series ......................................................76 5.2 Basic performance ................................................. 77 5.3 Operation instruction ............................................. 77 5.4 Maintenance ............................................................78

Geared Traction Machine Operation And Service Manual

5.5

Troubleshooting ..................................................... 80

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Geared Traction Machine Operation And Service Manual

1. General-usage to intended purpose Thank you for purchasing our geared elevator traction machines. In order to enable users to make clear about our product’s function, characteristic most and ensure users’ safety, please read this operation and maintenance manual carefully. When any problem beyond this manual is found during using, please contact local sales agency or our technicians of engineering department. Our professional technicians delight in service for you.

1.1 Safety declaration Only qualified personnel are allowed to perform any planning, installation or maintenance work to geared elevator traction machines. The personnel must be trained for the job and must be familiar with the installation, assembly, commissioning and operation of the product. Sufficient knowledge in lift construction is essential.

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Geared Traction Machine Operation And Service Manual

The

regulations

concerning

operation,

maintenance

and

inspection in accordance with the applicable safety regulations in lift construction such as GB 7588-2003 “Safety rules for the construction and installation of electric lifts” (equal to EN81-20/50:2014) and other relevant regulations shall be strictly observed. The operator is responsible for the proper installation of traction machines with regard to safety requirements as well as for its inspection and maintenance as specified in the applicable regulations. No liability can be assumed for any damage caused by improper handling or any other acts, which are not in conformity with these operating instructions and thus deter from the qualities of the product.

1.2 Checking before usage Before you start to use the machine, you should check the following item earnestly first.

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Geared Traction Machine Operation And Service Manual

a.

Check up whether the packages is integrity or not

before opening it, and make sure there is no injured or affected with damp; b.

Check up whether the machine documents and other

related accessories is well-found or not; c.

Check up the nameplate date seriously, and make sure

the this type of machine is accords with your desires; d.

Check up whether the traction machine structural is

integrated or not, whether the bolt fix tight or not, and whether the brake system is working agile or not; e.

Measure the insulation resistances of motor windings

and brake windings. If the insulation resistances dropped below 3 M the winding needs to be dried (insulation meter voltage: 500V DC); f.

Check up whether the brake system work effective and

brake manual handle device work agile and effective or no.

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Geared Traction Machine Operation And Service Manual

1.3 Operation conditions The geared traction machines must be ensured on following ambient conditions: a.

Altitude: max. 1000 m (If the altitude bigger than

1000m,please connect our technical department); b.

Ambient temperature: +5~+40 °C;

c.

The air relative humidity on the running locations should not be more than 50% ， when the highest temperature is +40 ℃, can have a higher relative humidity in the lower temperature, the average minimum temperature should be less than +25 ℃ in the wettest month. The monthly average maximum relative humidity should be less than 90%. If may cause condensation on the device, the corresponding measures should be taken;

d.

The power supply voltage fluctuation and ratings deviation should be no more than ±7%; 7

Geared Traction Machine Operation And Service Manual

e.

Circumstance air without causticity and combustible gases or pungent gases.

1.4 Installation Check the permissible base frame or foundation loads by calculation before installing the lift machine. ; Use feeler gauge to inspect whether is there any space between the machine and base frame or space between absorber and base frame before tightening the bolts. Any space between the interfaces will be effect the running of machine and elevator. Traction machines are generally provided with rope slip-off guards. After putting the ropes in place, adjust them so that the distance between the rope and the rope slip-off guard does not exceed 1.5 mm. Install the machine only in an enclosed machine room and take care to observe the relevant safety precautions.

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Geared Traction Machine Operation And Service Manual

1.5 Transport and storage The traction machines leave factory in a faultless condition after being tested. Make a visual check for any external damage immediately upon their arrival on site. If any damage incurred in transit is found, make a notice of claim in the presence of the forwarder. If necessary, do not put these machines into operation Customers are not allowed to disassemble the machine. If really have to disassemble, it should be done following manufacturer’s instruction. The eyebolts in the motor are just designed for the motor weight and it is not permitted to suspend additional loads. And the machine must be suspend in a right method (see following picture for detail). Weight table of all types of machine: Type

YJ240B

YJ245D

FYJ180

FYJ200

YJ140

Weight((kg)

730

900

430

680

185

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Geared Traction Machine Operation And Service Manual

Type

FYJ245

YJ320

YJ200

YJ110

YJ275

Weight(kg)

860

1450

650

140

925

Type

YJ125

YJ410

YJ150

Weight(kg)

195

2800

310

Store the machine only in closed, dry, dust-free, well ventilated and vibration-free rooms, and the ambient temperature should be 0~60 °C. After prolonged storage (>3 months), rotate the motor in both directions to allow the oil, grease to distribute evenly in the bearings.

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Geared Traction Machine Operation And Service Manual

Suspend Drawing(For YJ140、YJ110、YJ125、YJ150)

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Geared Traction Machine Operation And Service Manual

Suspend Drawing(For FYJ180、FYJ200、FYJ245)

Suspend Drawing(For YJ200、YJ245D)

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Geared Traction Machine Operation And Service Manual

Suspend Drawing(For YJ240B、YJ275、YJ320)

Suspend Drawing(For YJ410)

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Geared Traction Machine Operation And Service Manual

2. Electrical connection 2.1 General The electrical connection of the motor should be done by qualified electric technician. Before connection the people who do the connect work must make sure there is no foreign bodies, dirt or moisture in the terminal box. And the power voltage it according to the motor requests (the motor data can be found in the nameplate). In order to keep the connection is safety and credible, please thought the cable from the water joint in connection box. Do not forget to cover the connection box cover after connection, which can keep out to get an electric shock.

2.2 Motor connection Connect the motor power and thermal resistance terminal

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Geared Traction Machine Operation And Service Manual

according to following wiring diagram. The connection cable diameter is decided by motor rated current. Check the short-circuiting between windings and ground after connection. In order to control the motor temperature rise and avoid the motor temperature become too high. Every motor install a motor thermal protection resistance，customer can connect it to their control system.

In order to control the motor temperature rise and avoid the motor temperature became too high. Elevator traction machine install a motor thermal protection resistance ， customer can connect the terminal to their control system.The following table

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Geared Traction Machine Operation And Service Manual

is the specification of the PTC thermal resistance our factory use： PTC Technical Characteristics

Three in series

Unit

Max work voltage

U max

25

V

Rated acting temperature

TK

As insulation class

ºC

R 25 ℃

≤300

Ω

T k -5℃

≤1650

Ω

T k +5℃

≥3990

Ω

≥12

KΩ

＜5

s

Resistance at T=25ºC±1ºC （V≤2.5V） Resistance at given temperature （V≤2.5V） Resistance at given temperature （V≤2.5V） Resistance at given temperature

Tk

（V≤2.5V）

+15℃

Tk acting time

TD

2.3 Brake and brake switch Gear traction machine YJ125 ,YJ140, YJ200, YJ240B, FYJ245, 16

Geared Traction Machine Operation And Service Manual

YJ245D, YJ275, YJ320, FYJ180, FYJ200,YJ410,YJ150 braking system use tradition drum brake, Gear traction machine YJ110 braking system use suction fit electromagnet. Before connect the brake power, customer must make sure the controller output voltage it according to the brake requests (the rated voltage of brake can be found in the brake wiring diagram in brake terminal box). Due to release circle installed in geared traction machine brake system, customer has to differentiate between BK+ and BK- on the brake terminal, when connect the power supply of the brake, preventing release circle burning. The nominal operating voltage is AC220V brakes have an incentive function, customers access to AC220V power, the system does not set the maintain voltage, for example YJ320, YJ140 AC220V brakes. For DC110V brake in use set to maintain the voltage, the voltage value should not be less than 60% of the rated voltage.

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Geared Traction Machine Operation And Service Manual

Brake Wiring Diagram There are two micro switch install in the brake system used to feed back the acting of brake. Our factory has connected them to BKS11, BKS12 and BKS21, BKS22 terminal in the brake terminal box. Customs can connect them according the control system requests. Following picture is an electric sketch map of microswitch,1（C） is common contact,2（NC）is normal close contact ,3（NO）is normal open contact..

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Geared Traction Machine Operation And Service Manual

2.4 Jigger switch According to correlative standard requests there must have a jigger switch for the machine room. Following picture is the jigger switch(except machine YJ410). When the maintainer want to use the jigger switch, please loose the bolt M4x10 with Phillips screwdriver and lay down the rear cover, make sure normal closed contacts disconnect,cut off safety circuit. Please safekeeping the spares which laid down, in order to restore the device when the lift runs normally.

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Geared Traction Machine Operation And Service Manual

For machine YJ410:

When required to turn the car, unscrew four butterfly screws, remove the rear cover, switch normal closed contacts disconnect, it can turn the car.

2.5 Encoder connection Encoder is a precision sensor. No force to dismantle and assemble. No hit with hammer. Customer must select it according the inverter system’s requests. Connect the encoder cable according to the instruction manual of 20

Geared Traction Machine Operation And Service Manual

inverter and encoder. Wrong wiring will damage the internal circuit of the encoder. Don’t connect or disconnect encoder signal cable with power for avoiding short circuit and damage the encoder. Don’t use the megger to test the encoder for avoiding damaging it.

2.6 Earthing For safety reasons, it is very important that the motor be properly and carefully earthed. Use the earthing screw provided on the housing! In addition, connect the protective or earthing conductor in the terminal box as specified respectively.

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Geared Traction Machine Operation And Service Manual

3. Operation and maintenance 3.1 General The lift operator is responsible for regular checks of the brake safety components and the traction main sheave, and must include these components in his visual inspection schedules. The

regulations

concerning

operation,

maintenance

and

inspection in accordance with the applicable safety regulations in lift construction such as GB 7588-2003 "Safety rules for the construction and installation of electric lifts", and other relevant regulations shall be strictly observed. The operator is responsible for the requirements, which are with regard to applicable safety regulations.

3.2 Operating check Following items should be check before running：

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Geared Traction Machine Operation And Service Manual

a.

Confirm lubrication oil level is at the level gauge

marked; b.

Open the brake then use handwheel to manual operate

the machine to check whether it running agilely; c.

Connect the motor power as require, then running the

machine no-load (It must be done after adding oil 20 minutes later.) to check whether the machine runs normally (Mainly items is to check the noise and vibration); d.

Operating the brake several times to check whether it

runs agilely; e.

Hang up the rope and check whether the brake torque is

enough or not. If the braking torque is adjusted unqualified, 23

Geared Traction Machine Operation And Service Manual

it should adjust as require. Otherwise, it will cause the accident.

3.3 Lubrication instructions The oil type we recommend is Shell Omala 460 at tropic or other type of oil which have similar performance. The oil type we recommend is 460 synthetic oil or other type of oil which have similar performance for YJ410；YJ150 (motor ≥ 10KW) adding 460 synthetic oil。 The oil level should be at scale mark. If too little, the lubrication will be not enough. If too much, the oil will be leak out.

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Geared Traction Machine Operation And Service Manual

If the machine storage more than 1years, the oil should be changed before use. When using mineral oil, the first time oil changing should be done after the new machine runs 400 hours. If using synthetic oil, it should be done after 700 hours running. After that, depending on the machine running condition, changing mineral oil each 2000-3000 hours (at most 12-18 months) and synthetic oil each 3000-4000 hours (at most than 24—36 months). For good results, the first time recommend using mineral oil. But please note that it is forbid to mix mineral oil and synthetic oil. If changing the mineral oil to synthetic oil, it should be operated as following steps: a.

Take off the rope when machine stops then drain the

mineral oil away. b.

According to machine oil, pour kerosene to geared box.

After running with high speed little, drain the kerosene away. Repeat 2 or 3 times. c.

Pour synthetic oil as require. 25

Geared Traction Machine Operation And Service Manual

d.

Run with high speed and positive and negative about

10 minutes (Confirm whether the machine sends up smoke through the oil window). e.

Drain the synthetic oil away when machine stops. Then

pour new synthetic oil. f.

Put on the rope and load 25% of rated load on cabin.

g.

Running under floor for floor about 10 minutes and

check the machine running situation and check the gear box whether sends up smoke. If changing the synthetic oil to mineral oil, same as above. The oil whether needs to change depends on the cleaning and ageing degree. Checking the oil color, smell and cleaning degree and confirm whether oil needs to change. If oil turns black and foul smell, it should change. And use filter paper to check heat oil and watch the metal corpuscle to confirm whether needs to change the oil.

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Geared Traction Machine Operation And Service Manual

The oil volume of all types machines as follows: Type

YJ240B

YJ245D

FYJ180

FYJ200

YJ140

8

13.5

8.3

7.3

5.5

FYJ245

YJ320

YJ200

YJ110

YJ275

13.5

15

5.5

2.5

9.5

YJ125

YJ410

YJ150

3.9

15

6.3

Oil Volume (L) Type Oil Volume (L) Type Oil Volume (L)

After adding the oil level of oil, confirm the oil level to the oil mark red bias or oil window mirror red a middle position. Replacement of the waste oil should be recycled into special appliances, not to be discarded at will.

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Geared Traction Machine Operation And Service Manual

3.4 Brake operation device Each traction machine has a manual brake handle device, which is used to escape the person in emergency states. And it is forbid to use in normal states. Under normal use, remove the brake lever on the brakes, proper placement. Use in emergency states. Operation step: 1, install loose brake lever in brake; 2, turn brake lever to any direction horizontal to release brake. Note:for equipped with remote loose brake device,using loose brake,after the host opened before the next boot operation need to confirm whether the brake completely reset.In use if found loose brake line due to rust turbidity jam or reply slowly,must replace the brake line.

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Geared Traction Machine Operation And Service Manual

Apply machines: FYJ180、FYJ200

Apply machines: YJ125、YJ140、YJ200、YJ240B、FYJ245、 YJ245D、YJ275、YJ320、YJ410、YJ150

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Geared Traction Machine Operation And Service Manual

brake loosening direction

Apply machine: YJ110

3.5 Machine maintenance Only qualified personnel are allowed to perform any maintenance work! Due to some items need be done when the machine running, maintainer should taking care self safety. The following items are our recommend maintenance work: Half a month Check item

Check content and method

Manual emergency

It should be placed in a safe and

operation device

conspicuous place near the machine

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Geared Traction Machine Operation And Service Manual

No abnormal vibration and sound during Traction machine operation Rotating the brake rod, observe the movement of the iron core is flexible. If the brake is opened, the brake rod is Moving iron core

placed in the middle position, and the moving iron core is not immediately returned. Must to clean the brake, See the following sections When the brake rod is used, the brake

Loose brake rod

rod should be placed in the middle

position

position, and then the brake rod is removed, Placed in a safe place The brake shoe wear more than 2mm,

Brake lining thickness

should replace the brake shoe. See the following sections Check the brake arm and the brake arm

Brake arm shaft pin

and the brake shoe box, the pin is

flexibility

flexible, such as rust, remove rust, lubrication Check whether the brake spring

Spring compression

compression capacity meets the requirements. See the following sections 31

Geared Traction Machine Operation And Service Manual

Fastener lock state

Confirmation of each fastener lock Check the brake wheel and the brake shoe clearance, when the minimum

Action and safety

clearance more than 0.4mm, or brake

distance

safety travel only 0.5 mm, both as long as to meet the one, should be adjusted. See the following sections

Brake

when the gate opening has not

synchronization

synchronization,must to adjust. See the following sections

Brake surface cleanliness

Brake wheel and brake wheel surface if there is oil and other debris, should be immediately cleared The installation should be firm without

Encoder

looseness and the surface should be clean

One quarter Check item The oil level

32

Check content and method Confirm the oil in the middle position or above (cycle according to the actual

Geared Traction Machine Operation And Service Manual

working set) 1.No obvious oil leakage (cycle according Reduction gearbox oil leakage

to the actual working conditions)2.If the worm shaft extension of the oil per hour leakage area of more than 25cm2, the need to replace the oil seal

Encoder

Working properly

Rope groove

Clean, no sundries

six months Check item

Check content and method Brake body decomposition, check

Brake body Internal quality

whether the iron core is rusty. See the following sections(Note: use the full 2 years must be disassembled braking body for internal cleaning maintenance) Keep sufficient braking force without skidding, and conduct the braking test of

Brake capacity the car with 125% rated load when necessary

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Geared Traction Machine Operation And Service Manual

The fastening condition of the traction wheel， or

No loose, damage

worm gear Worm gear tooth

The cumulative amount of wear 2mm clearance between the bolt (3) and cap (1). Second give the power to brake, the clearance between the brake lining and brake drum below 0.1-0.2mm and be sure there is no friction. The clearance can be adjusted by bolt (3), when it in a right position tightens the bolt (3) up with locknut (2).

4.2.5.4 Synchronous adjusting Refer to the above method to adjust models. 60

Geared Traction Machine Operation And Service Manual

4.3 Inspection and maintenance Before adjust the brake system be sure that the car is no passenger and the car must at terminal station and the counterweight must on the buffer. Measuring the thickness of brake shoe . You have to replace the brake shoe When the thickness of the brake shoe is less than the safety thickness (the amount of brake wear leather> 2mm)

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Geared Traction Machine Operation And Service Manual

62

Type

Standard A(mm)

Safety thickness B(mm)

YJ110

6

4.5

YJ140

7.5

5.5

Geared Traction Machine Operation And Service Manual

YJ125

8

6

FYJ180

8

6

FYJ200

8

6

YJ200

8

6

YJ240B

8

6

FYJ245

8

6

YJ245D

8

6

YJ275

8

6

YJ320

8

6

YJ410

8

6

YJ150

8

6

4.4 Dismantling and assembly Before adjust the brake system be sure that the car is no passenger and the car must at terminal station and the counterweight must on the buffer.

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Geared Traction Machine Operation And Service Manual

4.4.1

Apply machines: YJ125 、 YJ140 、

YJ200、YJ240B、FYJ245、YJ245D、YJ275、 YJ320、YJ410、YJ150 First removed the screws (1) on the junction box of the brake, and then removed the power cord and the lines of the micro switch. Remove the fixed bolts (2) of brake and the brake.

Release the lids (1) and the positioning nut (2), and remove the rubber cover and the springs (4).

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Geared Traction Machine Operation And Service Manual

Release all screws (1), then remove the washers (2), the static cores (3), the gaskets (4) and the dynamic cores (5).

Clean the moveable core and the outer guide shaft，If it is found severe wear, and affect brake performance ， the moveable assembly should be replaced. Clean the oil bearing inner ring, If it is found severe wear, and affect brake performance，the moveable assembly should be replaced.

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Geared Traction Machine Operation And Service Manual

Move 1) the handle, the handle activities require flexible, and then let the handle in the middle of the state. Brake assembly will be in accordance with the dismantling steps of the anti-chronological. Then adjust the braking system in accordance with sections 4.2.

Remark: It will be had the special tooling when removing the YJ140’s brake end cap, customers can obtain the tooling and the disassembly instructions from the manufacturer.

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Geared Traction Machine Operation And Service Manual

4.4.2 Apply machines:FYJ180、FYJ200 First removed the screws (1) on the junction box of the brake, and removed the power cord and the lines of the micro switch, then removed the fixed bolts (4) of the brake and the brake.

Release the nut (1), then remove the bolts (2), the washers (3), the brake.

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Geared Traction Machine Operation And Service Manual

Clean the moveable core and the outer guide shaft，If it is found severe wear, and affect brake performance ， the moveable assembly should be replaced. Move 1) the handle, the handle activities require flexible, and then let the handle in the middle of the state. Brake assembly will be in accordance with the dismantling steps of the anti-chronological. Then adjust the braking system in accordance with sections 4.2.

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Geared Traction Machine Operation And Service Manual

4.5Brake system maintenance There are two micro switches install in the brake system used to feed back the acting of brake, we recommend customer to connect them to your control system. Surface temperatures of brake may occur >100 °C. For this reason, no temperature-sensitive parts such as normal cables or electronic components may be routed to or fixed to the braking surface. Provide appropriate protection against accidental contact, if necessary. Because the running situation is deferent, we can’t control the

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Geared Traction Machine Operation And Service Manual

adjusting time. So the operator who in charge of maintenance works should inspect the running situation regularly. Normally, every month should be inspected. When doing any inspection or maintenance work, make sure that: a.

No inadvertent starting of the motor is possible;

b.

No load moment is acting on the brake drum or on the

motor; c.

After completion of the inspection and maintenance

work, the interlocking preventing inadvertent starting of the motor is cancelled d.

All surfaces providing friction are free from oil or

grease; it is not possible to clean an oily or greasy brake lining.

Following table is recommending maintenance work for brake system:

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Geared Traction Machine Operation And Service Manual

Check the Position

Check items

Remedy

contents Brakes opened

Please refer to

Adjust

the

and

section 4，gap

gap,please refer

counterweight

＜0.5mm

to section 4

on the buffer, Brake detect

gap

between

the

gap brake shoe and the

brake

wheel. Friction surface Friction surfaces free of grease no oil or grease Brake

and

other

Remove it from or something will

drum

debris

that

brake drum infect the brake

might

affect torque

braking

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Geared Traction Machine Operation And Service Manual

performance. Friction surface free of grease

Friction surfaces

1. Remove it

and

other

no oil or grease

from

debris

that

or something will

lining

might

affect

infect the brake

2. Replace the

torque

brake lining

Brake

braking

lining

performance. Brake

shoes

brake

Replace

the

Brake lining wear cumulative

brake shoes or out

amount

≤2mm ，

of

brake

arm(for

some

type

please refer to wear. section 4 machine)

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Geared Traction Machine Operation And Service Manual

Reserve safety

The safety stroke

stroke

（ the distance

(move

–core stroke)

between

the

move –core and

Adjust

the brake lever

distance, please

when

refer to section

brake

closed）must be over

the

4

2mm ，

please refer to

Brake

section 4 Move –core

please refer to Running agilely section 4

Noise

1. Readjust the brake opening No

abnormal distance

noise 2.

Contact

manufactory

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Geared Traction Machine Operation And Service Manual

Without manufactory’s permission and the guidance, it is forbid to disassemble the brake.

5. Three-phase asynchronous motor 5.1 Overview 5.1.1

YTTD series

YTTD series 3-phase regulating speed induction motors are developed for special purpose applications in elevator. Motor’s insulation is class F, motor’s rated voltage and frequency is 380V 50Hz(motor’s rated voltage and frequency is 380V 60Hz for machine YJ410) with single winding, motor runs on intermittent periodic duty (S5) with intermittent rate of 40%, 180 starts per hour. There are two kind poles of 4 poles 、6 poles and 8 poles. Motor’s mounting type is flange installation structure, additional

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Geared Traction Machine Operation And Service Manual

positive temperature coefficient thermal resistance protector can be imbedded in the stator winding upon client’s request so as to effectively keep motor from burn out caused by likely locked rotor, overload, improper and low supply voltage, etc, because a optimal combination of thermal resistance and thermal protector can accurately and instantaneously monitor the temperature variation of motor and switch power supply off at once when the designated temperature has been reached. High performance motors specially designed can meet the actually operating

condition

and

environment

requirements

of

adjustable-frequency equipments and elevators. They can start at high starting torque with low staring current and operate at low slip with low noise and vibration.

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Geared Traction Machine Operation And Service Manual

5.1.2 YTD series YTD series 3-phase AC induction motors available with double speeds are developed for special purpose applications in elevator. There are two classes of insulation B and F, motor’s rated voltage and frequency is 380V 50Hz with double winding, 6(4) poles for high speed setting and 24 (16)poles for low speed setting. Motor runs either on intermittent periodic duty (S5) with intermittent rate of 40%, 180 starts per hour, 3 minutes duration for 24(16) poles running, or on equivalent short time duty (S2) with 30 minutes duration for 6(4) poles rate running and 3 minutes duration for 24(16) poles rate running. Motor provide an alternative mounting type of horizontal installation (B3) or flange installation (B5). High performance motors specially designed can meet the actually operating condition and environment requirements with high starting torque and low staring current, low noise and vibration. 76

Geared Traction Machine Operation And Service Manual

5.2 Basic performance Please refer to nameplate of motor.

5.3 Operation instruction 1.

Check and ensure that all connecting bolts at outside of

motor are securely fastened. 2.

Ground terminals in terminal box must be connected to

appropriate earth with appropriate cord, securing grounded well. 3.

Measure the dielectric resistance between windings and

frame with megger whose scale up to 500 MΩ, need to dry motor prior to be used if less than 1MΩ. 4.

Conduct wire connections based on wire diagram.

5.

Check and ensure firstly that line source conforms to

specification and mount and connections meet this manual’s requirements, then switch motor on if all are okay.

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Check and ensure that motor operate smoothly and no desirable noise. 6.

YTD series Motors must start with 6(4) poles windings for

normal operating condition. When overhauling elevator, motors must start and run on 24(16) poles setting within 3 minutes running.

5.4 Maintenance 1.

Motor should be inspected and maintained periodically

together with elevator. The relevant details must be written down and kept carefully. 2.

The motor permits reasonable slight and harmonious sound

during operation. Motor must stop at once to check and replace worn bearings if abnormal noise caused by bearings has been found out. 3.

Motor must be dried off when the dielectric resistance

between windings and frame is less than 1MΩ. A locked

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Geared Traction Machine Operation And Service Manual

rotor current method is recommended to do drying treatment, that is, letting motor operate at locked rotor status on 50~60VAC 50Hz power supply. More care should be given to ensure that locked current is less than rated value, windings temperature rise not over 70K.This task must be done by expertise personnel.

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5.5 Troubleshooting

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Elevator Traction Machine Operation And Service Manual

S2019.2

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