Festo ELFC-KF Bedienungsanleitung

en Operatings

instructions

8068670

2017-02

[8068672]

Guide axis

ELFC-KF

2 Festo – ELFC-KF – 2017-02 English

Original instructions

Identification of hazards and instructions on how to prevent them:

Danger

Immediate dangers which can lead to death or serious injuries

Warning

Hazards that can cause death or serious injuries

Caution

Hazards that can cause minor injuries

Other symbols:

Note

Material damage or loss of function

Recommendations, tips, references to other documentation

Essential or useful accessories

Information on environmentally sound usage

Text designations:

 Activities that may be carried out in any order

1. Activities that should be carried out in the order stated

– General lists

èResult of an action/References to more detailed information

ELFC-KF

Festo – ELFC-KF – 2017-02 English 3

English – Guide axis ELFC-KF

Table of contents

1 About this document 4......................................................

2 Safety 4..................................................................

2.1 Safety instructions 4........................................................

2.2 Use for intended purpose 4...................................................

2.3 Qualification of specialized personnel 4.........................................

3 Further information 4.......................................................

4 Service 5.................................................................

5 Product overview 5.........................................................

5.1 Function 5.................................................................

5.2 Configuration 5............................................................

6 Transport 6...............................................................

7 Mounting 6...............................................................

7.1 Preparation 6..............................................................

7.2 Mounting 7................................................................

7.3 Attachment 7..............................................................

7.4 Mounting accessories 8......................................................

8 Commissioning 9...........................................................

9 Maintenance 9.............................................................

10 Dismounting 10.............................................................

11 Disposal 10................................................................

12 Fault clearance 10...........................................................

13 Technical data 11............................................................

14 Characteristic curves 13......................................................

ELFC-KF

4 Festo – ELFC-KF – 2017-02 English

1 About this document

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

The ELFC-KF guide axis is designated the “product” or “axis” in these operating instructions.

Read the operating instructions carefully before starting all work on the product.

2 Safety

2.1 Safety instructions

 Observe product labelling.

 Before working on the product, switch off the power supply and secure it against being switched on

again.

 Store the product in a cool, dry, UV-protected and corrosion-protected environment. Ensure storage

times are short.

 Protect the product during operation from damaging influences.

Damaging influences include grinding dust, glowing chips or sparks.

 Comply with tightening torques. Unless otherwise specified, the tolerance is ± 20 %.

2.2 Use for intended purpose

The axis is intended to be used for the basic design of the cantilever

or gantry systems, consisting of a drive axis and a passive guide

axis.

The axis is approved for the slide operating mode èFig. 1. Fig. 1

2.3 Qualification of specialized personnel

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

of the product.

3 Further information

Accessories èwww.festo.com/catalogue.

Spare parts èwww.festo.com/spareparts.

ELFC-KF

Festo – ELFC-KF – 2017-02 English 5

4 Service

Contact your regional Festo contact person if you have technical questions èwww.festo.com.

5 Product overview

5.1 Function

The slide of the ELFC-KF guide axis supports a load so that it can move. Owing to the coupling with

a drive axis (e.g. ELGC-TB-KF), the slide 4moves forwards and backwards. The slide is ball-bearing

guided. The reference position of the carriage can be determined with the help of proximity switches

(è7.4 Mounting accessories).

5.2 Configuration

123456

1Sealing air connection

2Profile housing with ball bearing guide

3Cover strip

4Slide

5Thread/centring holes for attachment

components

6Thread for accessories

7Slot for sensor bracket

8Slots for attachment

Fig. 2

ELFC-KF

6 Festo – ELFC-KF – 2017-02 English

6 Transport

Note

Unexpected movement of components. The axis is unbraked and the carriage can move

freely.

 Secure slide during transport.

 Take product weight into account è13 Technical data.

 Comply with maximum permitted support spacing when attaching transportation aids

è14 Characteristic curves.

7 Mounting

7.1 Preparation

 Do not modify the screws and threaded pins.

Exception: immediate requirement for change by these operating instructions.

 Place the product in such a way that its control sections are

accessible (e.g. band reversing).

 Install product without tension or distortion.

 Fasten product to a mounting surface with flatness of 0.05 %

of the stoke length, but max. 0.5 mm.

For gantry applications, attention must also be paid to parallel

alignment or product heights in alignment of the axes.

For additional information, contact your local Festo Service.

 Take the required support clearances into consideration

è14 Characteristic curves.

Fig. 3

If the ELFC-KF guide axis is used in conjunction with a drive axis, e.g. ELGC-TB-KF:

 Use mounting surfaces with identical evenness for both axes.

 Use the same support spacing on the drive axis and on the guide axis. The guide axis is aligned by

moving the slide to the mounting points. Attach the guide axis when the slide with the transverse

connection is located in the area of the

attachment points. If necessary, use a connection with tolerance compensation (fixed bearing/mov

able bearing).

These measures prevent tension due to uneven deflection.

ELFC-KF

Festo – ELFC-KF – 2017-02 English 7

7.2 Mounting

 Select mounting components èwww.festo.com/catalogue.

 Mount the mounting components outside the positioning range

to avoid collisions.

 Fasten axis to the profile (e.g. with profile mounting EAHF-L2).

 Tighten screws evenly.

Fig. 4

7.3 Attachment

Prerequisites

Note

A warped attachment component bends the slide

and shortens the service life of the guide.

 Use an attachment component with an even

surface.

Evenness: t = 0.01 mm

Fig. 5

 Place rated load in such a way that the break-down torque res

ulting from force F (parallel to the axis of motion) and lever arm

“a” are kept as small as possible èFig. 6.

 Avoid collisions of the mounting part and payload with other

mounting parts

Fig. 6

Mounting

 Fasten the attachment to the slide with screws and centring

sleeves. Observe screw-in depth D and tightening torque

èTab. 1 .

For attachment components with their own guide:

 Adjust the guide and axis so that they are exactly parallel, or use

a connection that permits tolerance compensation. In this way,

the guide is not overloaded.

Fig. 7

ELFC-KF

8 Festo – ELFC-KF – 2017-02 English

Size 32 45 60 80

Screw M3 M4 M5 M6

Screw-in depth D [mm] 4 … 5 6 … 7.5 8.5 … 10 11 … 14

Tightening torque [Nm] 1.2 2.9 5.9 9.9

Centring H7 [mm] @2 @4 @5 @7

Tab. 1

7.4 Mounting accessories

To protect the end positions against uncontrolled excess travel:

 Check the necessity of proximity sensors (hardware limit switches).

If proximity sensors are used as limit switches:

 Preferably use proximity sensors with normally closed function.

This protects against excess travel beyond the end position if the proximity sensor cable is broken.

If proximity switches are used as reference switches:

 Use proximity sensors that correspond to the input of the controller being used.

 For inductive proximity sensors: Use switch lug èAssembly instructions of the accessory.

Mounting of proximity sensor

 Use proximity sensors with sensor bracket (A) in the slot 7

èassembly instructions for the accessory.

Fig. 8

(A)

Avoidance of contamination

 Connect sealing air. To do this, remove the cover 1on the hous

ing and connect compressed air/vacuum.

Fig. 9

ELFC-KF

Festo – ELFC-KF – 2017-02 English 9

8 Commissioning

Caution

Risk of injury due to unexpected movement of com

ponents.

 Protect positioning range from access.

 Keep foreign objects out of the positioning

range.

 Perform commissioning at low speed.

Fig. 10

 Commission the unit following the operating instructions for the drive axis (e.g. ELGA-TB-KF). Refer

encing to a fixed stop may only be done on the drive axis and is not permissible on the guide axis.

9 Maintenance

Caution

Unexpected movement of components.

Injury due to impact or pinching.

 Before working on the product, switch off the control and secure it to prevent it from

being switched back on accidentally.

Checking the cover strip

 Check the cover band after every 2000 km of operating

distance.

Waves on the cover band are a sign for wear of the band

reverser.

Whenever waves form, retighten cover strip on both sides:

1. Loosen screws (C) èFig. 11.

2. Push the cover strip into the cover.

3. Tension cover strip with a clamping element (B) èFig. 11.

Clamping element èwww.festo.com/catalogue.

4. Tighten screws (tightening torque: 0.2 Nm).

If the cover strip can no longer be retensioned:

 Replace band reversers and cover èwww.festo.com/

spareparts.

Fig. 11

(C)

Cleaning

 Clean the axis as required with a soft cloth. Do not use aggressive cleaning agents.

ELFC-KF

10 Festo – ELFC-KF – 2017-02 English

10 Dismounting

Caution

Unexpected movement of components.

Injury due to impact or pinching.

 Before working on the product, switch off the control and secure it to prevent it from

being switched back on accidentally.

 Observe instructions on transport è6 Transport.

Information about spare parts and auxiliary means èwww.festo.com/spareparts.

11 Disposal

 Dispose of the packaging and the product through environmentally friendly recycling in accordance

with applicable regulations.

12 Fault clearance

Malfunction Possible cause Remedy

Squeaking noises,

vibrations or the axis is not

running smoothly.

Tensions Install axis without tension,

Maintain evenness of bearing surface

è7.1 Preparation.

Change the arrangement of

the attachment component/payload.

Align axis so it is exactly parallel

to the second axis.

Vibrations at the carriage Operation in

the resonance point of

the axis.

Change travel speed.

Change acceleration.

Reinforce axis mounting.

Change payload geometry.

Oscillation decay time of

the profile is too long

Self-generated frequency

from profile and payload is

too low

Reinforce axis mounting.

Change payload geometry.

Slide does not move. Loads are too high. Reduce load mass/torques.

Retaining screws on tool

are too long.

Observe screw-in depth

è7.3 Attachment.

Slide travels over end

position.

Proximity sensor does not

switch.

Check proximity sensor, connections and

controller.

Cover strip has waves. Wear on cover strip

reversers

Retension cover strip è9 Maintenance.

Aluminium wear on axis Replace band reverser

èwww.festo.com/spareparts.

Tab. 2

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