Servomech UAL 1 Bedienungsanleitung

Servomech S.p.A. 04.01-02-03-04-05.E - Rev. 01 DD (M/Y) 10/19 1

LINEAR ACTUATORS

UAL 1 –UAL 2 –UAL 3 –UAL 4 –UAL 5

UBA 1 –UBA 2 –UBA 3 –UBA 4 –UBA 5

Installation, operation and maintenance manual

Publication: 04.01-02-03-04-05.E - Rev. 01 Data (M/Y) 10/19

Servomech S.p.A. Via M. Calari, 1 - 40011 Anzola dell’Emilia (BO) - ITALY

Ph: + 39 051 6501711 Fax: + 39 051 734574 www.servomech.com info@servomech.com

Servomech S.p.A. 04.01-02-03-04-05.E - Rev. 01 DD (M/Y) 10/19 2

WARNING

Read this manual before installing, operating or maintaining this actuator. Failure to

follow safety precautions and instructions could cause actuator failure and result in

serious injury, death or property damage.

This manual provides important information on how to work with the actuator safely

and efficiently. The manual is part of the device, must always be kept in the device’s

direct proximity and should be available for personnel to read at any time. Failure to

comply with the installation, use and maintenance instructions indicated in this

manual will result in immediate termination of the warranty conditions of the

actuator and completely relieve Servomech S.p.A. from any liability for damage

caused to persons and / or property.

Servomech S.p.A. it does not assume direct or indirect responsibility for an improper

use of the actuator, not respecting the performances of the actuator declared in the

catalogs.

The manufacturer will not be liable for damage to the actuator or the equipment into

which the actuator has been installed resulting from:

• disregarding this manual

• unintended use

• employment of untrained personnel

• unauthorized conversions

• technical modifications

• manipulation or removal of the screws on the device

• use of unapproved spare parts

The aforementioned conditions are therefore not contemplated and entail the

immediate termination of the guarantee and the immediate decay of any

responsibility on the part of Servomech S.p.A.

Servomech S.p.A. reserves the right to make changes to the actuators and this manual

without giving any notice.

Servomech S.p.A. 04.01-02-03-04-05.E - Rev. 01 DD (M/Y) 10/19 3

LINEAR ACTUATORS UAL/UBA 1 - 2 - 3 - 4 - 5

Installation, operation and maintenance manual

Contents

MODELS COVERED BY THIS DOCUMENT....................................................................................................4

IDENTIFICATION OF THE MANUFACTURER AND THE PRODUCT................................................................4

2.1 Identification of the manufacturer.....................................................................................................4

2.2 Description of the product .................................................................................................................4

2.3 Identification of the product ..............................................................................................................5

TRASPORT AND HANDLING ........................................................................................................................6

USE RESTRICTION .......................................................................................................................................7

4.1 Intended use.......................................................................................................................................7

4.1.1 Use restrictions...........................................................................................................................7

4.1.2 Standard operating conditions...................................................................................................8

4.1.3 Thermal limit ..............................................................................................................................8

4.2 Personnel requirements / Qualifications ...........................................................................................8

STORAGE.....................................................................................................................................................8

INSTALLATION ............................................................................................................................................9

6.1 Safety warnings ..................................................................................................................................9

6.2 FCM magnetic stroke limit switches.................................................................................................10

6.3 FCP inductive proximity stroke limit switches..................................................................................12

6.4 Rotary encoder EH53........................................................................................................................13

6.5 Electric motor wiring ........................................................................................................................14

6.5.1 AC 3-phase asynchronous motor .............................................................................................14

6.5.2 AC 1-phase asynchronous motor with balanced winding........................................................16

6.5.3 DC motor ..................................................................................................................................17

6.6 Linear actuator installation ..............................................................................................................18

6.7 Installation of rod end fitting elements............................................................................................19

COMMISSIONING AND USE......................................................................................................................20

LUBRICATION............................................................................................................................................21

MAINTENANCE .........................................................................................................................................22

9.1 Maintenance of UAL/UBA 1-2 actuators..........................................................................................22

9.2 Maintenance of UAL/UBA 3-4-5 actuators.......................................................................................22

9.2.1 Linear drive lubrication.............................................................................................................23

9.2.2 Push rod guide lubrication .......................................................................................................24

Servomech S.p.A. 04.01-02-03-04-05.E - Rev. 01 DD (M/Y) 10/19 4

MODELS COVERED BY THIS DOCUMENT

The present manual is referred to following products:

Acme screw linear actuators: UAL 1 –UAL 2 –UAL 3 –UAL 4 –UAL 5

Ball screw linear actuators: UBA 1 –UBA 2 –UBA 3 –UBA 4 –UBA 5

IDENTIFICATION OF THE MANUFACTURER AND THE PRODUCT

2.1 Identification of the manufacturer

SERVOMECH S.p.A. S.U.

Via Monaldo Calari, 1

40011 Anzola dell’Emilia (BO)

ITALIA

Tel. +39 051 6501 711

Fax. +39 051 7345 74

Website: www.servomech.com

e-mail: info@servomech.com

2.2 Description of the product

For all the technical characteristics of the product (performance, features, dimensions) refer to the

technical catalog.

Main actuator components:

1) Push rod

2) External tube

3) Belt gear transmission with thrust bearings

4) Rod end

5) Rear hinge

6) Magnetic stroke limit switches (only for UAL/UBA 1-2-3-4)

7) Proximity limit switches (only for UAL/UBA 5)

8) Linear drive grease nipple (only for UAL/UBA 3-4-5)

9) Push rod guide grease nipple (only for UAL/UBA 5)

10) Electric motor

Figure 2.1 –Linear actuator components

UAL/UBA 1-2-3-4

UAL/UBA 5

Servomech S.p.A. 04.01-02-03-04-05.E - Rev. 01 DD (M/Y) 10/19 5

2.3 Identification of the product

Every SERVOMECH linear actuator is provided with a nameplate, as shown below, which allows the product

identification and gives technical information about the product.

Figure 2.2 –Identification nameplate

1) Product code: is an alphanumeric code stating the type, size, ratio, version and stroke end switches of

the linear actuator;

2) Ratio: is the ratio of the input drive;

3) Stroke length: is the stroke length in millimetres achievable by the actuator;

4) Linear speed: is the linear speed expressed in mm/s when the actuator is provided with electric motor;

for an actuator without motor, this field is blank;

5) Delivery date: is the week/year of assembly (example: 30/13 = week 30 / year 2013) which usually

coincides with the delivery date; this date is considered as reference for the warranty period;

6) Serial number: is the identification number of the actuator which identifies the exact design of the

product even after a long time; the serial number is the essential reference for spare part orders.

Servomech S.p.A. 04.01-02-03-04-05.E - Rev. 01 DD (M/Y) 10/19 6

TRASPORT AND HANDLING

It is recommended to pay attention and care during the handling and transport of linear actuators

not to damage mechanical parts and / or accessories and to prevent risks for the personnel in charge

of this activity.

The packaging must be lifted and moved with care and in a safe way.

For lifting and transporting the linear actuator, the push rod must be in retracted position.

Lift the actuator from the housing and outer tube, supporting the motor during transport.

DO NOT lift the actuator from the push rod and / or the motor.

In the case of BSA series actuators, the ball screw inside the actuator is NOT self-locking. Never lift

the linear actuator upright from the push rod as the actuators could be back driven by its own weight.

Figure 3.1 –Transport and handling

In case of doubt, consult SERVOMECH S.p.A. to get the appropriate information and prevent any kind of

damage!

Servomech S.p.A. 04.01-02-03-04-05.E - Rev. 01 DD (M/Y) 10/19 7

USE RESTRICTION

The information contained in this chapter provides important prescriptions for operating safely during all

phases of the product's life.

Not knowing or not complying with these provisions can generate dangerous situations that could cause

damage to equipment and risks for the safety of persons.

4.1 Intended use

Actuators are used to perform very different functions within machines. It is the responsibility of the machine

builder to design the application in compliance with the laws in force in the specific sector and in the field of

safety, in compliance with the requirements provided in the product catalog and in this manual.

ACTUATORS ARE ELECTRIC AXIS, WHATEVER DRIVER OR CONTROL WILL BE USED: THE SELECTION OF

THE PRODUCT AS STROKE, SPEED, TYPE OF LIMIT SWITCHES, MOTOR AND BRAKE, MUST BE DONE

ACCORDING TO THE BEHAVIOR EXPECTED, IN FUNCTION OF THE TYPE OF CONTROL CHOOSEN AND

THE STATIC AND DYNAMIC BEHAVIOR OF THE SYSTEM IN WHICH THE ACTUATOR IS PLACED!

The actuators have been designed and built to operate mobile parts of various types, shapes and

construction, in the ways and within the limits set out in the descriptions and tables of the technical data in

the catalog and in this user manual.

The actuators are designed to work with a purely axial applied load.

They must be subjected to the loading and speed conditions specified in the catalog.

Modification of parts of the actuator or replacement of components with different and non-original parts is

not permitted. The replacement of components with original spare parts is carried out only by Servomech

S.p.A.

Any different use is to be considered improper and therefore potentially dangerous for the safety of the

operators, as well as such as to void the contractual guarantee.

In the event of particular processing requirements, we recommend consulting our sales department.

Every modification must be authorized by Servomech S.p.A. with written documents.

ANY OTHER USE OUTSIDE THAT THAT JUST DESCRIBED IS NOT PERMITTED BY SERVOMECH S.p.A.

4.1.1 Use restrictions

Actuators can not be used for unforeseen applications.

Any utilization of this device beyond its intended purpose may lead to potentially hazardous situations.

Therefore:

•Strictly adhere to all safety precautions and instructions in this operating manual.

•Do not allow this device to be subjected to weather conditions, strong UV rays, corrosive or explosive

air media as well as other aggressive media (*).

•Do not modify, retool or change the structural design or individual components of the actuator.

•Never use the device outside of the technical application and operational limits.

(*) –THE USE OF THE ACTUATORS IN ABOVE CONDITIONS MUST BE PREVIOUSLY DECLARED AND AGREED

WITH SERVOMECH, SINCE A SPECIAL EQUIPMENT OF THE PRODUCT MUST BE PROVIDED.

Servomech S.p.A. 04.01-02-03-04-05.E - Rev. 01 DD (M/Y) 10/19 8

4.1.2 Standard operating conditions

The actuator must be used in an environment whose conditions comply with the provisions of Servomech

S.p.A. The works necessary for obtaining and maintaining that conditions are in charge of the owner and,

where applicable, are in charge of the end user.

The actuator must be installed and used indoor only, in dry area with environmental conditions as specified

below:

Temperature range +0°C ÷ +40°C

Relative atmospheric humidity 5% ÷ 85%

No build up of condensation

THE USE OF THE ACTUATORS IN DIFFERENT CONDITIONS THAN JUST DESCRIBED MUST BE

PREVIOUSLY DECLARED AND AGREED WITH SERVOMECH, SINCE A SPECIAL EQUIPMENT OF THE

PRODUCT MUST BE PROVIDED.

4.1.3 Thermal limit

The actuator duty cycle permissible Fi [%] is the maximum working time expressed in percentage that the

actuator can perform during the reference time period of 10 minutes, under rated load stated in the

catalogue at ambient temperature 25°C, without risk of internal parts overheating.

𝑭𝒊[%]=𝑀𝑎𝑥 𝑤𝑜𝑟𝑘𝑖𝑛𝑔 𝑡𝑖𝑚𝑒 𝑜𝑣𝑒𝑟 10 𝑚𝑖𝑛

10 𝑚𝑖𝑛 ×100

Linear drive

Fi [%]

Acme screw (UAL series)

Ball screw (UBA series)

100

For the proper operation of acme screw linear actuators (UAL series) do never exceed the permissible

duty cycle limit.

4.2 Personnel requirements / Qualifications

This manual must be made available to the personnel in charge of installation, start up and use of the

actuator. It is the responsibility of the machine builder:

use personnel with the necessary qualifications for the installation and commissioning of the

actuator;

periodically check the qualification of the assigned personnel;

check that the personnel in charge are aware of the contents of this manual.

STORAGE

Do not store outside.

Storage should be dry and dust-free.

Keep away from any aggressive media.

Protect from UV radiation.

Avoid mechanical vibrations.

Storage temperature: 0 to +50 °C.

Relative atmospheric humidity: max. 95% (no build up of condensation).

To store longer than 6 months, take care of moving the actuator to prevent damages to sealings.

Also check that all unpainted steel parts are adequately protected (oiled and /or greased) to

prevent oxidation.

Servomech S.p.A. 04.01-02-03-04-05.E - Rev. 01 DD (M/Y) 10/19 9

INSTALLATION

The operations described in the paragraphs of this chapter provide both electrical and mechanical

connections of the actuator, as well as the execution of test motions at reduced speed and motor torque or

with small displacement steps.

6.1 Safety warnings

MOTORS CANNOT BE CONNECTED DIRECTLY TO THE ELETRICITY GRID. A PROPER CIRCUITS AND

DEVICES FOR MOVEMENT MANAGEMENT ON BOTH DIRECTIONS IS REQUIRED. STROKE END LIMIT

SWITCHES (MICROSWITCHES OR SENSORS) MUST BE CONTROLLED TO BE SURE THE LINEAR

MOVEMENT OF THE ACTUATOR (DUE TO THE OPERATION OF THE MOTOR OR TO THE INERTIA OF

THE MOVING PARTS) STOPS BEFORE TO REACH THE MECHANICAL STROKE END LIMITS. IN CASE THIS

HAPPENS, THE ACTUATOR CAN BE LOCKED AND THE INTERNAL COMPONENTS CAN BE DAMAGED.

WHEN THE MOTORS MUST BE POWERED BY A CONVERTER (ELECTRIC DRIVE), THIS MUST BE CHOSEN

BY QUALIFIED PERSONNEL.

IN CASE THERE ARE INVOLVED ELECTRONIC DRIVE AND CONTROL DEVICES ON THE ACTUATOR

MOVING CONTROL, REFER TO MANUALS FOR ALL THE NECESSARY INFORMATION AND CORRECT

INSTALLATION AND MAINTENANCE OF THE PRODUCT.

BEFORE TO PROCEED TO THE ELECTRIC CONNECTION, MAKE SURE THE SUPPLY VOLTAGE IS TURNED

OFF.

BEFORE TO TURN-ON THE MOTOR, MAKE SURE THE ELECTRIC CONNECTIONS ARE TIGHTENED AND

STABLE.

CHECK POWER SUPPLY CABLES NOT TO BE DAMAGED DURING THE COMMISSIONING. POWER

SUPPLY CABLES MUST BE OUT OF HEAT SOURCES AND MOVING ORGANS.

DURING FUNCTIONING ARE PRODUCED MAGNETIC, ELECTRIC AND ELECTROMAGNETIC FIELDS. THIS

MAY BE DANGEROUS FOR PEOPLE THAT USE CARDIAC STIMULATOR (PACEMAKER), IF NOT

SUFFICIENT DISTANCE.

DO NOT DISCONNECT ANY CONNECTION DURING OPERATION OR IN PRESENCE OF SUPPLY VOLTAGE.

BEFORE TO TURN-ON THE MOTOR, MAKE SURE THE MECHANICAL CONNECTIONS OF THE ACTUATOR

REMAIN TIGHTENED AND STABLE, ALSO DURING THE OPERATION.

DURING THE COMMISSIONING, UNEXPECTED MOVEMENT OF THE MOTOR MAY BE CAUSED BY:

WIRING ERRORS

MOUNTING ERRORS

DAMAGES ON POWER SUPPLY CABLES

HARDWARE OR SOFTWARE ERRORS

DRIVER PARAMETERS ERRORS

OPERATION IN CONDITIONS OUTSIDE THE SPECIFICATIONS PROVIDED BY THE

CATALOG AND THIS MANUAL

MAKE SURE THE SAFETY PROTECTION OF THE MACHINE (MECHANICAL AND ELECTRICAL) ARE

ACTIVE.

DURING OPERATION, TEMPERATURE OF THE EXTERNAL SURFACE OF MOTORS CAN REACH HIGH

TEMPERATURES. HOT SURFACES ON ACTUATOR CAN CAUSE BURNS AND SHOULD NOT BE TOUCHED

Servomech S.p.A. 04.01-02-03-04-05.E - Rev. 01 DD (M/Y) 10/19 10

6.2 FCM magnetic stroke limit switches

The magnetic stroke end switches FCM allow to limit the actuator stroke length avoiding to reach the extreme

positions (mechanical stop) and preventing damage. Using more switches it is also possible to set

intermediate positions along the actuator stroke length.

The stroke end switches must be fixed on the external tube and are activated by a toroidal magnetic field

independently of their angular position.

The magnetic reed switches can work only if connected to a control circuit to activate electric relay.

Do not connect the reed switches in series between the power supply and the electric motor.

Actuators equipped with magnetic stroke end switches perform a linear travel shorter than their

stroke length code, because the reed switch FC 1 gives the stopping signal to the actuator before the

actuator has travelled the total stroke length. To know the actual stroke please refer to the product

catalogue or to the check sheet supplied with the actuator.

When using more contact reeds for intermediate positions, it shall be considered that the same reed

switch can give the signal in 2 different positions, depending on the actuator motion which can be

retracting or extending.

Figure 6.1 –FCM magnetic stroke limit switches

FCM magnetic limit switches are supplied already fixed on extreme stroke positions Lc and La (see Fig. 6.10):

RETRACTED ACTUATOR (Lc) position: FC 1 reed switch fixed on the tube up to the actuator housing.

EXTENDED ACTUATOR (La) position: FC 2 reed switch fixed on the limit marked on the outer tube.

The position of the reed switches can be adjusted by changing the fixing clamp position on the tube:

Release the screw on the fixing clamp (do not release the fixing screw of the reed sensor)

Move the fixing clamp on the tube to the desired position (do not exceed the maximum range Lc …

La)

Fix the screw of the clamp.

DO NOT SET THE FC 2 SWITCH POSITION OVER THE LIMIT MARK ON THE TUBE.

DO NOT TRAVEL OVER THE STROKE LIMIT SWITCHES POSITIONS, AVOIDING TO REACH MECHANICAL

STOP AND PREVENTING DAMAGE TO THE INTERNAL COMPONENTS OF THE ACTUATOR.

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