Festo DMES User manual

en Operating

instructions

8075175

2017-07e

[8075177]

Positioning axis

DMES

2Festo – DMES – 2017-07e

Original instructions

DMES-EN

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

DMES

Festo – DMES – 2017-07e English 3

English – Positioning axis DMES

Table of contents

1 Operating elements and connections 4.........................................

2 Function 5................................................................

3 Application 5..............................................................

4 Transport and storage 6.....................................................

5 Requirements for product use 6...............................................

6 Installation 7..............................................................

6.1 Mechanical installation 7.....................................................

6.2 Installation of the payload 9..................................................

6.3 Installing the external accessories 11............................................

7 Commissioning 12...........................................................

8 Operation 14...............................................................

9 Maintenance and care 15.....................................................

10 Repair 16..................................................................

11 Accessories 16..............................................................

12 Troubleshooting 17..........................................................

13 Technical data 17............................................................

DMES

4 Festo – DMES – 2017-07e English

1 Operating elements and connections

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

237564

Fig. 1 aBaC aA

1Drive shaft

2Mounting thread for motor mounting kit

(DMES-25...-63)

3Slide screws

4Slots for mounting the payload

(DMES-25...-63)

5Centring recesses with thread

6Slide

7Guide rail

8Corner profile for central supports

(DMES-18, -25)

9Mounting thread for switch lug

aJ Motor mounting kit (è11 Accessories)

aA Slot for proximity sensor

aB Lubricating nipple for roller guide

(DMES-...-KF only)

aC Lubricating hole for spindle nut

aD Cut-out for inserting slot nuts

(DMES-18, -25)

DMES

Festo – DMES – 2017-07e English 5

2 Function

A rotatable lead screw spindle converts a motor's rotation into linear motion, causing the piston to

move backwards and forwards. The outer slide is driven by an axially rigid connection through a slot in

the profile. A cover strip covers the slot in the profile.

Note

The DMES is self-braking: When the input torque is not applied, the slide will be braked.

The slide, however, can move slowly if

– the DMES is mounted vertically,

– there is no holding torque at the drive pin,

– there are vibrations.

Only the complete system (DMES with MTR-DCI) is self-locking: If the input torque is not

applied, the slide will be braked.

3 Application

The intended purpose of the DMES is the slow positioning of

loads with high forces. It is permitted for the slide operating

mode.

Fig. 2 Slide operation

 Please select the motors in our catalogue that are intended to be used in combination with the

DMES èwww.festo.com/catalogue.

Doing this will ensure you are operating two devices that are perfectly co-ordinated with one anoth

er.

 Observe the limit values for forces, torques and speeds (è13 Technical data and 14 Characteristic

curves).

These limit values apply for continuous operation. During intermittent operation with sufficient

cooling phases, the combination of force and speed may assume higher values in the short-term.

However, the individual maximum values for force and speed may not be exceeded at any time.

DMES

6 Festo – DMES – 2017-07e English

4 Transport and storage

 Consider the weight of the product. The DMES weighs up to 85 kg depending on the design.

 The following should be observed with regard to storage:

– Short storage times

– Cool, dry, shaded and corrosion-resistant locations.

5 Requirements for product use

Make sure that the following specifications are observed:

 Compare the limit values specified in these operating instructions with those of your application

(e.g. forces, torques, temperatures, loads, speeds).

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

ence to the load limits.

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

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

 Comply with the regulations of the trade associations and the German Technical Control Board

(TÜV) and the VDE or corresponding national conditions.

 Remove transport packaging such as foils (polyethylene) and cardboard. The material

used in the packaging has been specifically chosen for its recyclability (exception: Oil

paper = residual waste).

Warning

Apply power to the drive motor, at first limited to low speeds and torques. This prevents

uncontrolled movements.

 Use the DMES in its original state without undertaking any unauthorised modifications.

DMES

Festo – DMES – 2017-07e English 7

6 Installation

6.1 Mechanical installation

 Do not modify the screws and threaded pins if not directly

requested to do so in these operating instructions.

 Mount the motor onto the axis èAssembly instructions

for the motor mounting kit recommended in the

catalogue.

Fig. 3

 Please note that the IP protection class depends on the mounting position:

– Diagonal or horizontal with cover strip at the top; vertical: IP40

– Diagonal or horizontal with cover strip at the bottom: IP42

Note

Danger of screws being pulled out if the axis is only mounted to the covers.

 Secure the axis to the profile with additional mounting components.

 Use the marked slots when mounting the drive èFig. 4.

DMES-63DMES-25 DMES-40DMES-18

Fig. 4

 Position the product in such a way that its operating elements are accessible (e.g. relubrication

openings).

 Install product without tension or distortions.

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

the stoke length, but max. 0.2 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. Fig. 5

DMES

8 Festo – DMES – 2017-07e English

For products with large stroke lengths:

 Use the central supports (è11 Accessories).

The diagrams in the appendix (è14 Characteristic curves) show the deflections that will result

depending on the mounting position, support spacing and payload.

When mounting central supports:

 Place the central supports on the DMES in accordance with

Fig. 6.

For DMES-40/63: If the device is tilted, the slot nuts of the

central supports will slide into the slot at any point on the

profile.

 Tighten the mounting screws evenly.

Fig. 6

DMES-

18, 25

DMES-

40, 63

 Make sure that the central supports are outside the posi

tioning range of the slide.

Fig. 7

For installation in a vertical or inclined position:

Warning

Uncontrolled payload in the event of a power

failure or spindle nut fracture.

Injury due to impacts or pinching.

 Take appropriate safety measures to prevent

damage as a result of spindle nut fracture

(e.g. toothed latches, bolts or an emergency

buffer).

 If the maximum permitted axial play is ex

ceeded, replace the spindle nut and the

spindle if necessary.

Fig. 8

Fig. 9

DMES

Festo – DMES – 2017-07e English 9

6.2 Installation of the payload

 Place the payload in such a way that the break-down torque

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

arm “a” remains small.

Fig. 10

Other fastening possibilities:

1. On the slide: With slot nuts NSTL-... in the slots (4in Fig. 1).

NSTL 25 40 63 Legend

L100 166 229

A13 25 30

B 15 20 35

M M5 M5 M8

Tab. 1 Dimensions of slot nuts type NSTL-...

2. On the slide: With centring sleeves/pins (è11 Accessories) on

the centring recesses/threads (5in Fig. 1).

Observe the maximum screw-in depth T and tightening torque

(èTab. 2).

Fig. 11

Size 18 25 40 63

Screw M5 M6 M6 M6

Max. screw-in depth T [mm] 10 12.5 12.5 20.5

Tightening torque [Nm] 6 10 10 10

Centring hole [mm] Ø5H7 Ø9H7 Ø4G7 Ø9H7 Ø25G7 Ø9H7 Ø25G7

Tab. 2

3. For DMES without a slide:

On the through-holes of the driver (“N” in Fig. 11).

DMES

10 Festo – DMES – 2017-07e English

For payloads with their own guide:

 Adjust the guides of the payload and DMES so that they are exactly parallel.

You will then avoid overloading the guide (wear).

For hard and stiff payloads (steel):

Note

If the aluminium slide is bent against a curved

payload, the service life of the guide will be re

duced.

 Make sure that the mounting surface of the

payload is not bent more than as follows:

– KF: b ≤ 0.01 mm

For load geometries with projection in the longitudinal direction of the slide:

 Make sure that the payload does not strike

against the motor.

Fig. 13

For motor unit MTR-DCI:

 Twist the motor unit if required èAssembly instructions

for the motor mounting kit aJ.

Fig. 14

Fig. 12

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