Festo ESBF-LS-32 Bedienungsanleitung

en Operating

instructions

8076295

2018-12b

[8076297]

Electric cylinder

ESBF-BS/-LS-32 ... 100

2 Festo – ESBF-BS/-LS-32 ... 100 – 2018-12b

Translation of the original instructions

Symbols: Installation and commissioning may only be per

formed in accordance with these instructions by

technicians with appropriate qualifications.

Warning

Caution

Note

Environment

Accessories

English 3.........................................................................

ESBF-BS/-LS-32 ... 100

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English – Electric cylinder ESBF-BS/-LS-32 ... 100

Table of contents

1 Design 4..................................................................

2 Safety 5..................................................................

2.1 Use for intended purpose 5...................................................

2.2 General safety information 5..................................................

2.3 Mounting and connecting 5...................................................

2.4 Qualified specialists 5.......................................................

3 Function 6................................................................

4 Transport 6...............................................................

5 Installation 7..............................................................

5.1 Mechanical installation 7.....................................................

5.1.1 Mount product 8...................................................

5.1.2 Mount attachment components 9......................................

5.1.3 Mount accessories 9................................................

6 Commissioning 10...........................................................

7 Maintenance and care 12.....................................................

8 Disassembly and repair 13....................................................

9 Disposal 13................................................................

10 Accessories 13..............................................................

11 Troubleshooting 14..........................................................

12 Technical data 15............................................................

13 Characteristic curves 18......................................................

ESBF-BS/-LS-32 ... 100

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Documentation on the product

For all available product documentation èwww.festo.com/pk

1 Design

2 4

Fig. 1

1piston rod

2Thread for mounting

3Cylinder profile

4Pressure compensation opening (with

ESBF-32...50 in input-end cylinder cover):

– with sintered filter

– with thread (on variant S1/F1)

5Thread for motor connection

6Drive shaft

7Wrench flats for counter holding

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2 Safety

2.1 Use for intended purpose

The electric cylinder is intended to be used for exact positioning of payloads in combination with tools

or as a drive when external guides are used. The following product features are characteristic:

– low-speeds, self-retarding (ESBF-LS with lead screw)

– high speeds, high forces (ESBF-BS with ball screw).

2.2 General safety information

 Take into consideration the legal regulations applicable for the location.

 Only use the product if it is in its original status and in an excellent technical status.

 Use the product only within the defined values (è12 Technical data and 13 characteristics curves)

 Take into account labelling on the product.

 Do not make any unauthorised modifications to the product.

 Observe other applicable documents.

 Take into consideration the ambient conditions at the location of use.

Protect the product during storage and operation from the following:

– Wetness or moisture

– Corrosive coolant or other materials (e.g. ozone)

– UV radiation

– Oils, greases and grease-solvent vapours

– Grinding dust

– Glowing chips or sparks

2.3 Mounting and connecting

 Observe tightening torques. Unless otherwise specified, the tolerance is ±20 %.

2.4 Qualified specialists

Only qualified personnel may perform installation, commissioning, maintenance and disassembly of the

product. The qualified personnel must be familiar with installation and operation of electrical and pneu

matic control systems.

ESBF-BS/-LS-32 ... 100

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3 Function

A rotating thread drive (lead screw with ESBF-LS or ball screw

with ESBF-BS) converts the rotary movement of a motor into a

linear movement. The piston rod will then move backwards and

forwards.

The piston rod is non-rotating. The position of the piston rod

can be scanned with the aid of proximity sensors.

Fig. 2 ESBF-LS

Fig. 3 ESBF-BS

Note

The ESBF-LS is self-braking. When the input torque is not applied, the piston rod will be

braked.

The piston rod can, however, move involuntarily when:

– Vertical or diagonal mounting position of the ESBF-LS

– there is no holding torque on the drive shaft

– vibration

Note

The ESBF-BS is unbraked. When the input torque is not applied, the piston rod can be

moved freely. Self-locking of the complete system can be achieved with motors with

integrated holding brake or with high self-braking torque.

 Select the corresponding motors from our catalogue (èwww.festo.com/catalogue).

 Do not exceed the limit values for forces and speeds when using other motors (è12 Technical data

and 13 characteristics curves in Appendix).

4 Transport

 Take product weight into account (è12 Technical data).

 Secure piston rod during transport and maintain it in load-free position.

ESBF-BS/-LS-32 ... 100

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5 Installation

5.1 Mechanical installation

Prerequisites

 Do not modify the screws and threaded pins.

Exception: Direct request to make changes in these

operating instructions.

 Mount the motor on the electric cylinder using a motor

mounting kit (èAssembly instructions).

Permitted motor mounting kits

(èwww.festo.com/catalogue).

 Connector motor cables only after the electric cylinder is

mounted.

Fig. 4

Mounting position vertical or diagonal

WARNING

Uncontrolled moved masses caused by spindle nut

fracture inside the ESBF or a toothed belt failure in

parallel configuration EAMM-U (e.g. due to wear)

Injury from hard contact, impact, crushing.

 Check if protective measures are necessary to

prevent damage (e.g. toothed latches, pins or

emergency buffers).

Where necessary, take suitable measures.

Fig. 5

ESBF-BS/-LS-32 ... 100

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5.1.1 Mount product

Note

Pulling out of screws if cylinder is only mounted to the covers and the torque load

around the collar is too great.

 If there are heavy loads, mount the cylinder to the profile with additional mounting

components.

 Place ESBF as follows:

– all control sections are accessible

– Pressure compensating opening 4(èFig. 1) is not covered.

Interfaces for mounting components

on the cover on the profile

e.g. with flange mounting EAHH e.g. with profile mounting EAHF

Fig. 6

 Select mounting components or accessories (èwww.festo.com/catalogue).

 Mount the mounting components outside the positioning range (avoid collisions).

 Select mounting elements so that internal torques are braced against the housing during powerful

acceleration phases.

 Mount cylinder without distortion and deflection.

 Tighten screws 8uniformly to the specified tightening torque.

Size 32 40 50 63 80 100

Screw 8M6 M6 M 8 M 8 M10 M10

Tightening torque [Nm]

corrie

6 6 12 12 25 25

Tab. 1

Note

If an EAGF guide unit is used:

 Mount construction kits for proximity switches outside the mounting area of the

EAGF (èAssembly instructions).

ESBF-BS/-LS-32 ... 100

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5.1.2 Mount attachment components

Fitting hoses to pressure compensation opening

For pressurising and depressurising the pressure compensation opening on ESBF-...-S1/F1:

 Tighten suitable screw connection into the thread 4.

 Connect a tube for the supply and exhaust of fresh air.

Alternatives to the routing of this hose:

– in a protected area (dust-free and dry)

– in a large expansion tank

– with low positive pressure (max. 0.2 bar) as sealing air.

Fig. 7

Mount attachment component

 Place the centre of gravity of the attachment component, if

possible, centrally to the piston rod.

 Transmit as little torque as possible to the piston rod. Brace

against key surface 7. Excessively high torque can damage

the mechanism inside the cylinder (èTab. 2).

 Mount the attachment component to the piston rod.

Do not exceed permitted level of transverse force (deflection of

piston rod èAppendix 13 characteristics curves).

Fig. 8

Size 32 40 50 63 80 100

Piston rod thread

Male thread M10x1.25 M12x1.25 M16x1.5 M16x1.5 M20x1.5 M20x1.5

Female thread1) M6 M 8 M10 M10 M12 M12

Width across flats 7 ß [mm] 10 13 17 17 22 22

Max. torque [Nm]

corrie

2.4 6.4 12 15 31 53

1) Only at ESBF-...-F

Tab. 2

5.1.3 Mount accessories

To protect the end positions against uncontrolled overtravel:

 Check whether proximity sensors are necessary (as safety limit switches or hardware limit switches).

 Use appropriate proximity switches, sensor strips or mounting construction kits. Proximity switches

for polling the internal magnet must be arranged centrally on the flat profile surface

(èwww.festo.com/catalogue).

 Use proximity sensors with normally-closed function. These protect the ESBF from overrunning of

the limit position if the proximity sensor cable is fractured.

 Avoid external influence caused by magnetic or ferritic parts in the vicinity of the proximity sensors.

ESBF-BS/-LS-32 ... 100

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6 Commissioning

WARNING

Unexpected movement of components.

Injury due to impact or pinching.

 Protect positioning range from access

(e.g. with protective guards).

 Make sure that no foreign objects are present

in the positioning range.

 Carry out commissioning with low speeds and

torques.

Fig. 9

Note

Incorrect set values for the braking ramp in STOP statuses

(e.g. EMERGENCY OFF, Quick Stop) result in an overloading of the spindle axis and can

destroy it or drastically reduce its service life.

 Check the settings for all braking ramps in the controller or the higher-order control

system (deceleration values and jerk).

 Ensure that the retardation values (brake retardation, retardation times) are set in

such a way that the maximum input torque or “max. propulsion force” are not ex

ceeded. Take the following into account:

– Travel speed

– Moving mass

– Mounting position

 To design the spindle axis, use the Festo “Positioning Drives” design software

(èwww.festo.com).

Note

Block-shaped acceleration profiles (without jolt limitation) cause high peaks in the

motive force that can lead to an overloading of the drive. In addition, positions outside

the permissible range may occur as a result of overswing effects. A jolt-limited accelera

tion specification reduces vibrations in the entire system and has a positive effect on

stress in the mechanical system.

 Check which closed-loop controller settings can be adapted (e.g. jerk limitation,

smoothing of the acceleration profile).

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