Festo DDLI-25 Manuale utente

Operating

instructions

8113360

2019-05b

[8113362]

Linear drive

DDLI25_63

2 Festo – DDLI25_63 – 2019-05b

Translation of the 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

DDLI25_63

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Table of contents

1 Control sections and connections 4............................................

2 Function and application 5...................................................

3 Transport and storage 5.....................................................

4 Requirements for use 6......................................................

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

5.1 Installation, mechanical 7....................................................

5.2 Installation, pneumatic 10.....................................................

5.3 Installation, electric 11.......................................................

6 Commissioning 12...........................................................

6.1 Commissioning the complete system 12..........................................

6.2 Commissioning DDLI 12.......................................................

7 Operation 14...............................................................

8 Maintenance and care 14.....................................................

9 Repair 14..................................................................

10 Accessories 14..............................................................

11 Trouble-shooting 15.........................................................

12 Technical data 16............................................................

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1 Control sections and connections

1 2 3 456 7 8

1Measuring system connection

2Compressed air connection with push-in

fitting (blue releasing ring)

3Earthing (e.g. via screws 4in the connection

cap)

4Screws with female thread for attachment of

the drive (4x per side)

5Slide

6Mounting thread for useful load

7Cylinder barrel with integrated displacement

encoder

8Compressed air connection with push-in

fitting (black releasing ring)

Fig. 1

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

DDLI25_63

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2 Function and application

When compressed air is applied to the cylinder chambers in alternate sequence, the piston moves

backwards and forwards in the profiled tube. By means of a rigid connection to the piston, the slide

also moves. The slot in the cylinder barrel required for this is covered by a sealing band system. The

displacement encoder enables the position of the slide to be ascertained clearly at any time.

The displacement encoder with CAN axis interface is suitable for use with:

– end-position controllers SPC11-MTS-AIF-2

– axis controller SPC200 with axis interface SPC-AIF-MTS-2

– end-position controller CPX-CMPX

– position controller CPX-CMAX

– measuring module CPX-CMIX.

The linear drive DDLI in intended for the pneumatic positioning of

loads in slide operation.

The DDLI is intended for use in an industrial environment. Outside

of industrial environments, e.g. in commercial and mixed-residen

tial areas, actions to suppress interference may have to be taken.

Fig. 1 Slide mode

Note

Unpressurized movement of the slide is permitted only for fault correction and at low

speed. If excessive speed is used, the resulting low pressure can pull the sealing band

into the piston chamber. This leads to:

– high leakage and

– impermissible acceleration (e.g. in vertical mounting position).

3 Transport and storage

 Take into account the weight of the DDLI.

Depending on the design, the DDLI weighs over 40 kg.

 The following should be observed with regard to storage:

– short storage times

– cool, dry, UV and corrosion resistant.

– free from strong magnetic fields.

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4 Requirements for use

Note

Malfunctions will occur if the device is not used correctly.

 Make sure that the specifications contained in this chapter are adhered to at all

times.

 Take into consideration the legal regulations applicable for the destination, as well as:

– regulations and standards,

– regulations of the testing organizations and insurers,

– national specifications.

 Note the warnings and instructions on the product and in the relevant operating instructions.

 Remove all transport packaging, such as plastic sheets, caps and cartons (except for any covers in

the pneumatic ports).

The material used in the packaging has been specifically chosen for its recyclability (exception: oil

paper = residual waste).

 Observe the local regulations for environmentally friendly waste management of electronic compon

ents.

 Take into account the material specifications (èTechnical data).

 Use the product in its original status, without any unauthorised product modifications.

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

Corrosive elements in the environment (e.g. ozone) will reduce the service life of the product.

 Compare the maximum values specified in these operating instructions with your actual application

(e.g. pressures, forces, torques, temperatures, masses, speeds).

Operation of the product in compliance with the relevant safety regulations is contingent on adher

ence to the load limits.

 Take the tolerance of the tightening torques into account. Unless otherwise specified, the tolerance

is ± 20 %.

For vertical installation:

 Make sure that the slide has reached a stable position when it comes to a stop (e.g. the lowest

point or secured with external stops).

 Make sure the compressed air is properly prepared (èTechnical data).

 Read also the documentation for your control system (e.g. CPX-CMAX).

DDLI25_63

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5 Installation

5.1 Installation, mechanical

Note

Incorrectly parameterised positioning drives can perform sudden unexpected move

ments.

 Use the DDLI only with the specified mounting positions and parameters

(èdrive-specific information on the controllers).

 Observe the mounting requirements and instructions specified, especially in the

descriptions for the controllers used.

 Leave all screws and threaded bolts in their original states, un

less you are requested to modify them in these instructions.

 Avoid the sealing band being pressed and/or sucked in.

Damage to the sealing band reduces its reliability in operation.

Jerky movement of the unpressurized slide can cause a partial

vacuum that sucks the sealing band into the piston chamber. Fig. 2

 Avoid the band system becoming damaged or excessively dirty.

Damage can cause leakage and reduce the performance of the DDLI.

 Make sure that the device is installed free of distortion and deflection.

For fastening the drive:

 Use:

– MUP central supports or

– foot mountings of type HP in combination with additional MUC central supports.

The following table shows the required minimum number of central supports and foot mountings.

Stroke range

[mm]

Number of mounting attachments

Central supports Foot mounting + Central supports

100 … 400 2 2 0

401 … 600 2 2 1

601 … 1200 3 2 1

1201 … 1400 3 2 2

1401 … 2000 4 2 2

Tab. 1

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Note

Excessive distances between the central supports can reduce the positioning accuracy.

 Use at least the specified number of fastening elements (èTab. 1).

 Make sure that the plates are equally distributed over the complete drive length.

For attachment of HP foot mountings and MUC central supports:

1. Place the foot mountings, as needed, on the threads 4on the

DDLI and at first screw the mounting screws in lightly.

2. Place the central supports over the slot nuts in the mounting

slot.

3. Screw in the mounting screws lightly at first so that the central

supports can still be moved.

4. Move the central supports so that the spaces between the

central supports and, if applicable, foot mounting are the same.

5. Tighten all mounting screws on the DDLI evenly with the

subsequent tightening torque (èTab. 2).

6. Fasten the DDLI via the foot mountings and central supports. Fig. 3

Tightening torques for fastening screws

Foot mounting HP

Size 25 32 40 63

[Nm] 3.0 4.0 5.0 14

Central support MUP

Size 18/25-P 32 40 63

[Nm] 2.9 4.5 5.5 18

Tab. 2

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7. Make sure that the central supports are outside the positioning

range of the movable load (especially with side mounting). To do

this, push the movable load one time over the complete

positioning path.

Fig. 4

To fasten the useful load:

 Place the useful load so that the break-down torque from force

F remains parallel to the axis of motion and the lever arm a

remains low (Mx, My, Mz è12 Technical data). Fig. 5

With hard and stiff useful loads:

Note

If the slide 5becomes bent against a buckled use

ful load the service life of the guide will be reduced.

 Make sure the mounting surface of the useful

load is even. Fig. 6

 Note the tightening torques when attaching the useful load on the slide:

Size 25 32 40 63

Screw M5 M6 M8

Tightening torque [Nm] 3.5 6.5 12

Tab. 3

Effective loads with own guide:

 Adjust the guide of the effective load and the DDLI so that they are exactly parallel.

Only in this way can you avoid overloading on the slide (permissible forces è12 Technical data).

 Make sure that the effective load is coupled free of play to the DDLI (0.1 mm).

The driver DARD-L1-...-M offers a torque-free and almost backlash-free power transmission.

DDLI25_63

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5.2 Installation, pneumatic

When using in a vertical or sloping position:

Warning

Uncontrolled moving masses can cause personal injury and material damage (risk of

crushing). If there is a pressure failure, the moveable load (slide mass + mass of the

effective load) will slide down.

 Read the documentation for your controller (e.g. CPX-CMAX). There you will find

information on pneumatic circuits with which the moveable mass can be prevented

from falling down.

 Check whether safety measures are required to prevent slow sinking as a result of

leakage (e.g. toothed latches or moveable bolts).

 Connect the tubing connections in the supply ports. The

threaded connectors are marked with different colours on the

releasing ring:

– blue releasing ring at connection 2:

movement to the right towards the measuring system end

– black releasing ring at connection 8:

movement to the left towards the measuring system

connection

The required tubing O.D. is summarised in the following table

(èTab. 4).

2 8

Fig. 7

Size Stroke [mm] Tubing outside diameter [mm]

25 100 … 160 6

225 … 2000 8

32 100 6

160 … 2000 8

40 100 … 750 8

850 … 2000 10

63 100 … 300 8

360 … 450 10

500 … 2000 12

Tab. 4

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