semi-rotary drive drqd-b-16 32- drqd-40 50- · the shortest permissible cycle time of the...

(en) Operating instructions

Semi-rotary drive

DRQD-B-16 ... 32-...DRQD-40 ... 50-...

80685702017-05f[8068572]

US

pa

ten

t n

o. 6

,17

0,3

84

DRQD-...

Festo DRQD-... 2017-05f 2

Original instructions

Symbols: Fitting and commissioning to be carried outby qualified personnel only in accordancewith the operating instructions.

Warning, Caution

Please note

Antipollution

Accessories

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

DRQD-...

Festo DRQD-... 2017-05f English 3

Semi-rotary drive DRQD-16 ... 50-...English

Contents

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

2 Product overview 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Function and application 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Requirements for product use 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 Transport and storage 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 Installation 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mechanical installation 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Adjustment with pneumatic cushioning for DRQD-...-PPVJ 14. . . . . . . . . . . .

Adjustment with flexible shock absorbers for DRQD-...-P1J 16. . . . . . . . . . . .

Adjustment with hydraulic shock absorbers for DRQD-...-YSRJ 18. . . . . . . . .

Adjustment with the mid-position module for DRQD-...-Z1: 20. . . . . . . . . . .

Installing the pneumatic system 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation of system technical fittings 24. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical installation 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 Commissioning 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 Operation 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9 Service and maintenance 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 Disassembly and repairs 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11 Accessories 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12 Troubleshooting 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13 Technical data 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DRQD-...

Festo DRQD-... 2017-05f English4

Documentation on the product

For all available product documentation � www.festo.com/pk

1 Control sections and connections

1 2

7

5

6

44

89aJaAaBaC aJ

3

DRQD-...-PPVJ DRQD-...-YSRJ

Fig. 1

DRQD-...


Entry DRQD-...

PPVJ P1J YSRJ

1 Supply ports with plug screws √ – –

2 Supply ports √ √ √

3 Flanged shaft with energy through-feed with dovetail formounting (only for DRQD-...-FW-...-SD../-E..)

√ √ √

4 Drive shaft in the versions: spigot shaft or flanged shaft(with flanged shaft with energy through-feed)

√ √ √

5 Slot for proximity sensor √ √ √

6 Threaded holes for mounting of the DRQD √ √ √

7 Threaded holes with centring hole for mounting of the DRQD √ √ √

8 Threaded sleeve (YSRJ) / shock absorber (P1J) for setting therotation angle, secured with lock nut

√ √ √

9 Lock nuts for shock absorber – – √

aJ Threaded holes for mounting of the useful load(for DRQD-...-FW with centring holes)

√ √ √

aA Through-holes for mounting of the DRQD √ √ √

aB Internal hexagon socket for setting of the rotation angle √ √ –

aC Adjusting screw for end position cushioning(concealed inside)

√ √ –

Fig. 2 Control sections and connections depending on the selected program execution

DRQD-...


Mid-position module DRQD-...-Z1 (not for DRQD-...-P1J):

aG

aE

aH

aI

bJ

aF

aE Piston rods�(hollow)

aF Internal hexagon socket for adjustment of the mid-position (concealed inside thehollow piston rod)

aG Internal hexagon socket visible (may not be adjusted – functional damage)

aH Supply port for mid-position module (alternative connection with blanking screw)

aI Slot for proximity sensor for sensing the mid-position

bJ Exhaust hole for mid-position module (concealed inside; may not be covered ordirtied by dust)

Fig. 3

DRQD-...


2 Product overview

The semi-rotary drive DRQD module consists of individual sub-assemblies whichcan be combined with each other. Special variants can be recognised by the designation on the name plates.

For example: DRQD-40-180-PPVJ-A-FW-Z1-SD62

DRQD-...

PPVJ

YSRJ

FW

ZW

Z1

360°

180°

90°

SD..

E..

E..

P1J

Fig. 4

DRQD-...


3 Function and application

The semi-rotary drive DRQD-... is a double-acting twin-piston drive. When the compressed air ports are pressurised alternately,two pistons arranged in parallel move in theopposite direction backwards and forwards.The linear motion is realised using a pinion ina rotational movement of the drive shaft.

The end position cushioning is done:

– DRQD-...-PPVJ pneumatically– DRQD-...-P1J with flexible shock absorbers– DRQD-...-YSRJ with hydraulic shock absorbers

The semi-rotary drive with mid-position module DRQD-...-Z1 enables the positioningof the drive shaft in the mid-position betweenthe end positions.

The semi-rotary drive DRQD-... is intended foruse to rotate or swivel useful loads whichhave to carry out a defined angular movement(≤ 360).

4 Requirements for product use

NoteImproper handling can result in malfunctions.

� Be sure to always comply with the specifications in this chapter. This is theonly way to ensure correct and safe product behaviour.

Definitionmoving mass = work load (+ mass of any levers)

Fig. 5

0° 45°

90°

Fig. 6

(180°)

(90°)

DRQD-...


� Compare the maximum values specified in these operating instructions withyour actual application (e.g. pressures, forces, torques, temperatures, masses,speeds).

Operation of the product in compliance with the relevant safety regulations iscontingent on adherence to the load limits.

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

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

� Make sure that the compressed air is properly prepared (� Technical data).

� Maintain the selected medium for the complete service life of the product.Example: always use non-lubricated compressed air.

� Pressurise your entire system slowly.

There will then not be any uncontrolled movements.

For slow start-up pressurisation use safety start-up valve type HEL.

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).

� Please comply with trade association regulations and national and local safetylaws and regulations.

� Remove all transport packaging such as foils, caps and cartons (except for anyplugs in the pneumatic connections).

The packing is intended for recycling (except for: oiled paper = other waste).

� Use the product in its original condition without unauthorized modifications.

� Note the warnings and instructions on the product and in the relevantoperating instructions.

� Take the tolerance of the tightening torques into account. Unless otherwisespecified, the tolerance is ±20%.

� Do not modify any screws or threaded pins unless this is requested in theseinstructions.

For safety reasons they are fixed with screw locking compound.

DRQD-...


For use of the mid-position module DRQD-...-Z1:

NoteThe DRQD-...-Z1 can be destroyed by incorrect use.

� Make sure that the following points are observed:– The shortest permissible cycle time (� Commissioning) – Supply air flow control of the mid-position module.

The shortest permissible cycle time of the semi-rotary drive increasesthrough the use of the mid-position module.

5 Transport and storage

� Take into account the weight of the DRQD:

It weights up to 20 kg.

6 Installation

Mechanical installation

Note� Handle the DRQD with care so that the drive shaft is not damaged.

This applies in particular to the following points:

1. Place the DRQD so that you can easily reach the operating parts and connections.

2. Fasten the DRQD in one of the following ways:

– Double screw connector with centring sleeve in the through-holes aA– With four screws in the threaded holes 7– Dovetail mounting (only for DRQD-...-SD../-E..).

DRQD-...


For DRQD with hollow drive shaft:

3. Pull the lines through the hollow drive shaft if necessary.

The usable interior diameter for routing of the lines has the following dimensions:

DRQD-... 16 20 25 32 40 50

Flanged shaft with energy through-feed(inner)

[mm] 9 11 12 14 20 24

Spigot shaft diameter(inner)

[mm] – – – – 6.5 10

Fig. 7

For preassembly of the conduit of the flanged shaft with energy through-feedDRQD-...-SD../-E..:

� Pay attention to the allocation of the individual paired tubings C to the pneumaticpush-in fittings A and B. The allocation isindicated by coloured labels as well as(when there is more than one paired tubing) numbered labels on the push-infittings.

Fig. 8

A

BC

DRQD-...


For pretensioning of the open tube ends (for DRQD-...-SD..) for large ranges ofrotation (180...360°):

� Screw the drive into the end position in the anti-clockwise direction.

� Bend the open tube ends when they are not tensioned.

DRQD-...-SD32 ... 62 DRQD-...-SD64

Fig. 9

� Turn the tube ends in the anti-clockwise direction into the intended position Eas shown in the following Fig. 10. After completion of the procedure describedbelow, the tube should assume the intended position E (e.g. in the cut-out of aadapter plate).

DRQD-...-SD32 ... 62 DRQD-...-SD64

pretensioned by 90° pretensioned by 180°

Fig. 10

This prevents impermissible squeezing of the spirals inside the flanged shaftwith energy through-feed for large ranges of rotation (180...360°).

� Put the pretensioned tube ends of the spiral tubing into the intended positionE (e.g. in the cut-out of an adapter plate).

DRQD-...


4. When mounting the moveable mass, makesure that the following specifications arefulfilled:

– Non-tilted installation– Permissible lateral force Fy– Permissible longitudinal force Fx– Permissible mass moment of inertia

The mass moment of inertia of the movingmass should be calculated. Lever arms,cantilever axes and masses should beconsidered in the calculation (maximumpermissible values � cataloguespecifications, www.festo.com/catalogue.

5. Attach the moving mass on to the drive shaft.

6. Make sure that the following points are observed when doing this:

DRQD with woodruff key DRQD with flanged shaft

ÓÓÓÓÓÓÎÎÎÎÎÎ

mÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓ

ÓÓÓÓÓÓ

m

Moving mass can not slide from the driveshaft (use the thread on the front side)

Moving mass is attached with at leasetwo screws (use centring recesses)

Fig. 12

7. Adjust the end positions depending on the type.

Product type Pneumaticcushioning

Flexible shock absorber

Hydraulicshock absorber

Mid-positionmodule

DRQD-... PPVJ P1J YSRJ Z1

Instruction text from page 50 from page 52 from page 54 from page 56

Fig. 13

Fx

Fy

(+)Fx ( )

Fig. 11

DRQD-...


Adjustment with pneumatic cushioning for DRQD-...-PPVJ

Note� Be sure to comply with the specifications

for the safety components:– Do not remove retaining rings

(for DRQD-16 ... 32).– Turn in the threaded sleeve until it is

completely flush to the lock nut (for DRQD-40/50).

The safety components are used to limitthe maximum permissible rotation anglesetting. Impermissible handling of thesafety components makes it possible toturn in the threaded sleeve too deeply.

For adjustment of the end positions:

1. Turn the moveable mass into an end position by hand.

2. Loosen the lock nut of the threaded sleeve(only for DRQD-40/50)

3. Screw in the respective threaded sleevewith an Allen key until the desired endposition adjustment has been reached.

Fig. 14

DRQD-16-...-32

DRQD-40/50

Fig. 15

DRQD-...


The following settings are possible:

Handling Reaction Setting range related to factory basic setting(example: DRQD-...-90)

Rotatingclockwise

Reducingthe rotationangle

- 20°

Turning in anti-clockwisedirection

Increasingthe rotationangle

+ 6°

Fig. 16

One rotation roughly corresponds to the following rotation angle change.

DRQD-... 16 20 25 32 40 50

Angle change per revolution

[°] 8.2 8.5 6.9 6.6 4.9 3.8

Fig. 17

NoteThe DRQD-40/50 can be destroyed by unsecured threaded sleeves.

4. Make sure that the lock nuts of the threaded sleeves are retightened with the specified tightening torque. The tightening torque is 50 Nm.

For DRQD-16 ... 32, the threaded sleeves are secured by their automatic locking.

5. Repeat the procedure to set the second end position.

DRQD-...


Adjustment with flexible shock absorbers for DRQD-...-P1J

WarningThe internal cushioning component or theshock absorber can be expelled (danger ofinjury).

� Be sure that the internal cushioningcomponent is not screwed out furtherthan Lmin.

� Be sure that the shock absorber protrudes by maximum with the dimensionLmax.

DRQD-... 16 20 25 32

Max. protrusion of Lmax. [mm] 41 59.5 61.4 60

Minimum depth of the adjusting screwin the cushioning component Lmin

[mm] 6.9 8 8.5 5.9

Fig. 19

1. Handle the shock absorber with care sothat the thread is not damaged.

2. Completely screw in the internal cushioning component clockwise with an Allenkey (factory setting).

3. Unscrew the lock nuts of both shock absorber threaded sleeves 8.

4. Turn the moveable mass against the shockabsorber force into an end position byhand. This will cause one of the internaltwin pistons to lie against the shock absorber threaded sleeve.

5. Screw the respective threaded sleeve withan Allen key until the desired end positionadjustment has been reached.

Fig. 18

Fig. 20

8

Fig. 21

DRQD-...



Handling Reaction Setting range related to factory basic setting (example: DRQD-...-90)

Rotating clockwise


á (followingtable) á

áTurning in anti-clockwise direction

Increasing therotation angle

+ 6°

Fig. 22


DRQD-... 16 20 25 32

Angle change per revolution [°] 8.2 6.8 5.5 6.6

Max. reduction of the rotation angle áper side 1)

[°] –270 –320 –280 –210

Max. increase of the rotation angle [°] +6

1) Recommendation: symmetrical setting of the rotation angle

Fig. 23


NoteThe DRQD can be destroyed by unsecured threaded sleeves.

7. Make sure that the lock nuts 8 of both shock absorber threaded sleeves areretightened with the specified torque (� following table).

DRQD-... 16 20 25 32

Tightening torque 8 [Nm] 5 8 20 35

Fig. 24

DRQD-...


Adjustment with hydraulic shock absorbers for DRQD-...-YSRJ

1. Handle the shock absorber with care so that the thread and the outer cylinderare not damaged.

2. Unscrew the lock nuts of both shock absorber threaded sleeves 8.

The smaller lock nut 9 at the shock absorber may not be loosened to set the endpositions.

3. Turn the moveable mass against the shockabsorber force into an end position byhand.

This will cause one of the internal twinpistons to lie against the shock absorberthreaded sleeve.

4. Screw in the respective threaded sleevewith an open-ended spanner at the shockabsorber lock nut 9 until the desired endposition adjustment has been reached.The locking is not released during this.


Handling Reaction Setting range related to factory basic setting (example: DRQD-...-90)

Rotating clockwise


- 20°

Turning in anti-clockwise direction

Increasing therotation angle

+ 6°

Fig. 27

Fig. 25

8

Fig. 26

9

DRQD-...



DRQD-... 16 20 25 32 40 50

Angle change per revolution

[°] 8.2 6.8 5.5 6.6 4.9 3.8

Fig. 28


NoteThe DRQD can be destroyed by unsecured threaded sleeves.

6. Make sure that the lock nuts 8 of both shock absorber threaded sleeves areretightened with the specified torque (� following table).

DRQD-... 16 20 25 32 40 50

Tightening torque 8 [Nm] 10 20 30 60 80 80

Fig. 29

When the integrated shock absorber has been adjusted:

Warning� In the range of rotation, be sure that:

– Nobody can reach into the direction ofrotation of the rotation range.

– No foreign objects can get in there. (e.g. fit your own protective screen)

m

Fig. 30

DRQD-...


Adjustment with the mid-position module for DRQD-...-Z1:

1. Manually press the protruding piston rod aE completely into the mid-positionmodule.

2. Insert the long side of the Allen key intothe hollow piston rod aE.

3. Rotate both concealed screws aF into thepiston rods aE as far as possible in ananti-clockwise direction (status as delivered).

4. Turn the respective screw aF for adjustment of turning capacity in the clockwisedirection until the drive shaft is in thedesired mid-position.

When doing this, the followingtorques are to be maintained:

DRQD-... 16 20 25 32 40 50

Min. torque [Nm] 0.32 0.45 0.45

Max. torque [Nm] 5 8 8

Width across flats 3 4 5

Fig. 32

Fig. 31

aE

ÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓ ÓÓÓÓÎÎ

ÓÓÓÓÓÓÓÓÓÎÎÎÎÎÎ

aF

DRQD-...



DRQD-...-90-...-AR-Z1 DRQD-...-90-...-AL-Z1

AR

AL

(A)

(B)

(B) (A)

Fig. 33

Handling Reaction Max. offset related to factorybasic setting

Turn screw (A) clockwise

Increasing the rotationangle

+ 10°

Turn screw (B) clockwise

Reducing the rotationangle

- 10°

Fig. 34

One rotation roughly corresponds to the following rotation angle change:

DRQD-... 16 20 25 32 40 50

Angle change per revolution [°] 6.2 5.1 4.1 3.3 2.4 1.9

Fig. 35

NoteThe Allen key can be expelled during pressurisation

� Pull the Allen key from the piston rod after making the settings.

DRQD-...


For all DRQD types:

� Check whether additional shock absorbers are needed.

Additional external shock absorbers arenecessary in the following cases:

– for movable masses with a mass moment of inertia greater than thedetermined permitted mass moment of inertia

– when the DRQD is operated without an air cushion on the exhaust side (e.g. after long breaks between the individual rotation movements).

Installing the pneumatic system

For setting the rotation speed:

� Use the GRLA one-way flow control valves.

These are screwed directly into the compressed air ports.

Fig. 37

For eccentric masses:

� Use the controlled check valve HGL or a compressed air spacer compensationreservoir VZS.

In this way you can prevent the moveable mass from sliding down suddenly ifthere is a sudden drop in pressure.

Fig. 36

DRQD-...


For use of the flanged shaft with energy through-feed DRQD-...-SD../E..

� Attach tubing to connections (X) and (Y) � Fig. 38.

The required tubing dimensions are summarised in the following table.

Tube coupling

Tube �

Push-in connector (X)

4 mm6 mm (for DRQD-...-SD6..)

Tube spiral(Y)

6 mm (for DRQD-...-SD6..)4 mm (for DRQD-...-SD4..)3 mm (for DRQD-...-SD32)

Fig. 39

The allocation of the paired tubings at the tube outlet location (C) to the push-infittings (A) and (B) is indicated by coloured labels as well as (when there ismore than one paired tubing) numberedlabels on the push-in fittings.

DRQD-... (A) (B) (C)

-SD..2- E..2 1 1

-SD..4-E..4 1 1 2 2

-SD..81 1

2 2

3 3

4 4

Fig. 38

x y

Fig. 40

A

B

C

DRQD-...


For use of the mid-position module DRQD-...-Z1:

Note� Use one-way flow control valves GRLZ

(supply air flow control).

It is directly screwed into the supply port aH.

By doing this, you will avoid overlystrong dynamic forces at the twin pistonof the mid-position module.

� Connect the compressed air supply aH.

Installation of system technical fittings

If both supply ports of the semi-rotary drive are pressurised simultaneously:

NoteAn eccentrically arranged mass and the resetting force of the shock absorberscan lead to an automatic movement.

� Be sure that the drive shaft of the semi-rotary drive moves freely.

For pneumatic control of the DRQD:

� Use a 5/2 way valve.

Fig. 41

aH

Fig. 42

DRQD-...


For pneumatic control of the DRQD-...-Z1:

� Use the following way valves (e.g. control according to Fig. 43 or Fig. 44 – representation of the mid-position valves actuated):

Variant A:

Mid-positionmodule

Rotary drive

Valvetype

MEH/MFH

MEH-...-B/MVH-5/3B-1/8-B

Function 3/2-way valve,normally exhausted

5/3-way valve,mid-positionpressurised

Fig. 43

Variant B:

Mid-positionmodule

Rotary drive

Valvetype

CPE..-M1H-3GL CPE..-M1H-3OL

Function 3/2-way valve,normally exhausted

Two 3/2-wayvalves, normallyopen

Fig. 44

GRLZ-...

5 3

4 22

1 3

GRLZ-...

2

1 3

1 3

2

1 3

2

DRQD-...


Electrical installation

For sensing of mid-position and end position:

� Place the SME-8/SMT-8 proximity switch in the following slots:

Sensingtype

End position Mid-position

Slot position 5 (at thesemi-rotarydrive)

aI (at themid-positionmodule)

Fig. 46

For use of the flanged shaft with energythrough-feed:

� Wire the electrical connections according to the following table:

DRQD-16/20/25/32-E.. DRQD-40/50-E..

(Z)

(T)

+ _

ÖÖÖ

ÖÖÖÖÖ

ÖÖÖÖÖ

In order to use the 4-pin connection socket, the T-plugconnector (T) can be removed.Through-feed cover plate (Z) for DRQD-16/20-E.., formounting of the adapter kit; rotatable by 90°.

The allocation of the connection plugwith the corresponding connectionsocket at the outlet location is indicatedby numbered labels.

Plug C Pin 1 (+) Pin 2 (Signal B) Pin 3 (–) Pin 4 (Signal B)

Socket A Pin 1 (+) – Pin 3 (–) Pin 4 (Signal B)

Socket B Pin 1 (+) Pin 4 (Signal B) Pin 3 (–) –

Fig. 47: Supply voltage for DRQD-16/20/25/32-E..

Fig. 45

5

aI

DRQD-...


7 Commissioning

Commissioning of the basic unit

When adjusting the DRQD:

Warning� Within the range of rotation of the mov

able mass at the DRQD, make sure that:– Nobody reaches into the direction of

rotation of the moveable mass.– No foreign objects are there.

Note� Make sure that the following require

ments are observed:– All adjustment parts are secured by

snap rings or lock nuts.– The operating conditions are within

the permissible ranges.– The DRQD is only put into motion with

protective devices.– The mid-position module with supply

air flow control is only actuated when the semi-rotary drive is pressurised (� Control examples are in the chapter “Installation – System Technical”).

– Dust or other dirt is kept away from the filter opening bJ.

For setting the rotation speed:

NoteThe screw slot can break if the tightening torque is too high.

� Screw in the adjusting screw (B in Fig. 50) of the end position cushioning onlyuntil there is noticeable resistance in the end position.

m

Fig. 48

Fig. 49

bJ

DRQD-...


1. Rotate both upstream one-way flow controlvalves�(A)

– First close completely– then open again by about one turn.

2. Rotate the adjusting screws for the endposition cushioning (B)

– at first completely (DRQD-...-P1J/PPVJ),– then open again by about 1/4 rotation

(only for DRQD-...-PPVJ).

3. Pressurise the drive in one of the following ways:

– Slow pressurisation of one side– Simultaneous pressurisation of both sides with subsequent exhausting of one

side

4. Start a test run.

5. Note the necessary corrections to the DRQD settings during the test run. Thesecould be:

– The range of rotation of the moving mass– The rotation speed of the moving mass– The end position cushioning

6. Unscrew the one-way flow control valves (A) slowly again until the desired rotationspeed has been set.

If the desired rotation speed for the DRQD-40/50-...-YSRJ has not been reached,the cushioning time can be reduced by gradual turning out of the shock absorber(about 1 mm per testing procedure). The maximum value is:

– 6 rotations (10 mm) for DRQD-40-...-YSRJ– 10 rotations (15 mm) for DRQD-50-...-YSRJ.

7. Open up the adjusting screws for the endposition cushioning (B) on both sides untilthe desired cushioning has been reached.

The piston should reach the end positionsafely, but not strike hard against it. An overly hard impact will cause the pistonto bounce out of the end position.

When doing this, the cushioning componentfor the DRQD-...-P1J may not be screwed outmore than Lmin (� Chapter “Mechanicalinstallation, adjustment with flexible shockabsorber”, Fig. 19).

Fig. 50

(B)

(A)

Fig. 51

(B)

(A)

DRQD-...


If the piston can be heard to strike hard:

8. Interrupt the test run.Causes of metallic knocking may be:

– Mass moment of inertia of the moving mass too high– Rotation speed of the moving mass too high– No compressed air cushion on the exhaust side– Shock absorber has been screwed out too far (only for

DRQD-40/50-...-YSRJ)– Cushioning component has been screwed out too far (only for DRQD-...-P1J)

9. Make sure you remedy the above-mentioned causes.

10. Repeat the test run.

Once all necessary corrections have been recorded:

11. End the test run.

Commissioning mid-position module (not for DRQD-...-P1J)

WarningEye injuries can be caused by extended pistonrods.

� In the positioning range of the DRQD-...-Z1,be sure that:– Nobody has his/her head in the direction

of operation.– There are no foreign objects present

(e.g. Allen key in piston rod).

Note� Also consider the following points:

– The mid-position module may not be pressurized if the semi-rotary drive hasbeen pressurised on one side (otherwise the resulting torque will be too low).

– The maximal permitted mass moments of inertia are observed.– Two-sided pressurisation of the supply ports can lead to an automatic

movement from:a) An eccentrically arranged useful loadb) The resetting force of the shock absorber

– The minimum cycle time is maintained (for maintaining the maximumpermitted mass moment of inertia of the functional variants DRQD-...-PPVJ;� Fig. 53).

Fig. 52

DRQD-...


1. Slowly pressurise both supply ports of the semi-rotary drive DRQD. For slowstart-up pressurisation use safety start-up valve type HEL.

2. Screw the flow control screw of the GRLZ at the mid-position module:

– completely in– and then open with one rotation.

3. Pressurise the mid-position module. The semi-rotary drive moves to the presetmid-position.

4. Vent the mid-position module.

5. Start a test run at low rotational frequency.

Type DRQD-...

Diameter 16 20

Cushioning YSRJ *) PPVJ YSRJ *) PPVJ

Rotation angle 90 180 90 180 90 180 90 180

Possible cycle time [sec.](rotating from end positionto mid-position at 6 bar)

0.2 0.26 0.2 0.23 0.22 0.41 0.22 0.31

Diameter 25 32

Cushioning YSRJ *) PPVJ YSRJ *) PPVJ

Rotation angle 90 180 90 180 90 180 90 180


0.18 0.20 0.17 0.22 0.21 0.24 0.19 0.24

Diameter 40 50

Cushioning YSRJ PPVJ YSRJ PPVJ

Rotation angle 90 180 90 180 90 180 90 180


0.47 1.10 0.0 0.21 0.35 0.99 0.18 0.35

*) The maximum permissible mass moment of inertia of the functional variants DRQD-...-YSRJ exceeds the permissible load of the mid-position (only mass moment of inertia of DRQD-...-PPVJ permissible).

Fig. 53: Possible cycle times for checking in test run

DRQD-...


Commissioning of the fine adjustment of the end positions

� Complete the following settings while pneumatically pressurised:

DRQD type Instruction text

With pneumatic cushioning (for DRQD-...-PPVJ)

Chapter “Mechanical installation and adjustmentwith pneumatic cushioning”: Steps 1...5

With flexible shock absorber(for DRQD-...-P1J)

Chapter “Mechanical installation and adjustmentwith flexible shock absorber”: Steps 1...6

With hydraulic shock absorbers(for DRQD-...-YSRJ)

Chapter “Mechanical installation and adjustmentwith hydraulic shock absorber”: Steps 1...6

With the mid-position module(for DRQD-...-Z1)

Chapter “Mechanical installation and adjustmentwith mid-position module”: Steps 1...4

Fig. 54

When all stops have been adjusted:

Note� Be sure that all adjustment parts are se

cured by snap rings or lock nuts.

� Repeat the test run.

When setting work has been completed:

� Do the final adjustment of the proximity switches.

Fig. 55

DRQD-...


8 Operation

Warning� Within the range of rotation of the mov

able mass at the DRQD, make sure that:– Nobody reaches into the direction of

rotation of the moveable mass.– No foreign objects are there.

For several uninterrupted rotation cycles:

Note� Be sure that the maximum rotation frequencies given in the following table

are not exceeded:

DRQD-... 16 20 25 32 40 2) 50 2)

Max. permissible rotation frequency: 1)

– DRQD-...-90-...-PPVJ– DRQD-...-180-...-PPVJ– DRQD-...-360-...-PPVJ

[Hz] 431.5

32.21.2

21.30.8

1,20.80.5

1,20.90.5

1,20.90.5

– DRQD-...-90-...-P1J– DRQD-...-180-...-P1J– DRQD-...-360-...-P1J

[Hz] 3.62.51.5

3.02.21.2

2.51.91.0

2.21.60.8

–

– DRQD-...-90-...-YSRJ– DRQD-...-180-...-YSRJ– DRQD-...-360-...-YSRJ

[Hz] 21.81

21.81

1.51.50.9

1.21.20.9

1.01.00.7

0.90.80.6

1) At temperatures of less than 0°C, an upper limit of the maximum frequency of 1 Hz applies to all YSRJ models.

2) Only for reduced cushioning length (procedure � ’Commissioning’ chapter).

Fig. 57

Otherwise, the functional reliability will be impaired by excessive rise in temperature.

m

Fig. 56

DRQD-...


If the piston can be heard to strike hard in the end position:

� If possible, increase the cushioning (turn in cushioning component forDRQD-...-P1J or shock absorber for DRQD-40/50-...-YSRJ).

� Replace the following components if they are worn:

– Both shock absorber of the DRQD-...-YSRJ (� Disassembly and repair)– Both seals and internal cushioning components of the DRQD-...-P1J.

9 Service and maintenance

To check the function of the shock absorbers:

� Complete the following steps:

DRQD-... P1J YSRJ

Interval 5 million switching cycles 2 million switching cycles

Procedure 1. Check the cushioning compon-ents.

In case of audible knocking:2. Screw in the cushioning com

ponents further.

If the knocking remains the samedespite completely screwing inthe cushioning components:3. Replace the cushioning com-

ponents and seals (lubricatethe cushioning components before installation with, forexample, LUB-KC1).

1. Screw out the shock absorber(� Disassembly and repair)

and check for oil leaks.

2. Replace the shock absorber ifthere is visible loss of oil(� Accessories).

3. Screw in the shock absorberagain.

Fig. 58

In case of dirt:

� Clean the DRQD with a soft cloth.

Permissible cleaning agents include:

– Warm soap suds up to +60C– Petroleum ether– All media which do not damage the materials

DRQD-...


10 Disassembly and repairs

For eccentric masses on the lever arm:

WarningThe mass will slide down if there is a dropin pressure.

� Make sure that the mass has reached astable position before venting (e.g. thelowest point).

Dismantling:

Note� Make sure that both the semi-rotary drive and the mid-position module are

exhausted for disassembly.

Overhauling the DRQD

� Recommendation: Return the product to our repair service for overhaul. The necessary fine adjustments and tests will then be taken into account.

� Information on spare parts and aids can be found under:www.festo.com/spareparts

Fig. 59

DRQD-...


For replacement of the integrated cushioning elements/shock absorbers:

� Proceed as follows:

1. Vent DRQD.

2. Release lock nut at the cushioning component 8/ shock absorber 9 (lock nutof the shock absorber threaded sleeve remains screwed on).

DRQD-...-P1J DRQD-...-YSRJ

8 9

Fig. 60

3. Screw out the cushioning component/shock absorber and screw in the newcushioning component/shock absorber up to the stop.

4. Tighten the lock nut at the cushioning component 8/ shock absorber 9 withthe tightening torque indicated here:

DRQD-... 16 20 25 32 40 50

YSRJ 9 [Nm] 3 5 20 35 60 80

P1J 8 [Nm] 5 8 20 35 – –

Fig. 61

11 Accessories

Note� Please select the appropriate accessories from our catalogue

www.festo.com/catalogue

DRQD-...


12 Troubleshooting

Defect Possible cause Remedy

Uneven movement of themoving mass

Flow control valves insertedincorrectly

Checking the restrictor function (supply or exhaust air restriction)

Asymmetric angle setting Symmetric setting preferred

DRQD defective Return to Festo

Mid-position isnot reacheddespite ventilation (only forDRQD-...-Z1)

Pressure at mid-positionmodule too low

Eccentrically arranged massexceeds the current torque

Select the pressure at the mid-position module (max. 10 bar) so that asecure, trouble-free mid-positionmovement is guaranteed.

Incorrect actuation Check the pneumatic circuit diagram

– Hard metalimpact at theend position

– Drive shaftdoes not remain in theend position(bouncing)

Residual energy too high Select lower swivel speed

Use stops with integrated shock absorbers

Use external shock absorbers

Move only against residual air cushionon the exhaust side

Select a lighter mass

Semi-rotary drive movesagainst a non-pressurisedchamber

Pressurise both semi-rotary drives

The shock absorber (forDRQD-40/50)/cushioningcomponent (for DRQD-...-P1J) isscrewed out too far

Pay attention to the maximum permissible unscrewing length (� “Commissioning” chapter

Shock absorber/cushioningcomponent defective (for DRQD-...-YSRJ/-P1J)

Replace shock absorber/cushioningcomponent (� “Dismantling and repairs”)

Fig. 62

DRQD-...


13 Technical data

DRQD-... 16 20 25 32 40 50

Design Semi-rotary drive with double-acting twin piston and

PPV.. Adjustable pneumatic cushioning

P1.. Adjustable flexible cushioning –

YSR.. Hydraulic shock absorbers

...J Adjustable rotation angle

Z1 Mid-position

SD../E.. Energy through-feed

Medium Filtered compressed air, lubricated or unlubricated(Filtration grade: min. 40 μm / recommended 5 μm)

Operating pressurerange

PPVJ [bar] 1... 10

YSRJ [bar] 2... 10

P1J [bar] 3... 10 –

Permitted pressure/vacuum range for tubespirals

SD../E..

[bar] – 1...10 (for T = – 10... + 30°C)

– 1...9 (for T = – 10... + 40°C)

– 1...7 (for T = – 10... + 60°C)

Mounting position Any

Rotation angle (factory setting)

90180360x

90°180°360°x° (user-specific)

Setting of the rotation angle

– per end position PPVJ/YSRJ Infinitely adjustable between – 20° ... + 6°

– per end position P1J [°] – 270+ 6

– 320+ 6

– 280+ 6

– 220+ 6

–

– in mid-position Z1 Infinitely adjustable between – 10° ... + 10°

DRQD-...


DRQD-... 504032252016

Temperature range [°C] – 10 ... + 60

Torque at 6 bar (theor.) [Nm] 1.7 3.2 6.1 12.6 25� 50

Maximum permittedlongitudinal and transverse force on thedrive shaft

Depends on the distance of the point of force application (� catalogue specification)

Max. permissible massmoment of inertia

Depending on product type (� catalogue specification)

End-position adjustment

By turning in the threaded sleeves

End position cushioning

PPVJ Pneumatic cushioning

P1J Flexible cushioning –

YSRJ Hydraulic cushioning

Materials Housing: Anodised aluminiumShaft, screws: SteelSeals: Polyurethane,

Nitrile rubber

Z1 Buffer: Perbunan

SD.. Tube spirals: Polyurethane

Weight (approx.)middle part 90

180360

[kg] 0.380.470.65

0.590.731.00

1.021.261.73

1.852.283.16

3.964.576.57

7.018.9913.04

Connector cap PPVJP1JYSRJ

[kg] 0.120.140.14

0.220.240.24

0.360.340.44

0.610.610.92

1.17

–2.17

2.32

–4.27

End cap [kg] 0.04 0.05 0.08 0.14 0.37 0.61

Energy through-feed SD.. [kg] 0.15 0.15 0.30 0.30 0.9...1.22

E.. [kg] 0.40 0.40 0.80 0.80 2.40 2.40

Mid-position module Z1 [kg] 0.23 0.31 0.55 0.81 2.51 3.96

Fig. 63

DRQD-...

Festo DRQD-... 2017-05f 39

Reproduction, distribution or sale of this document or communication of its contents to others without express authorization isprohibited. Offenders will be liable for damages. All rights reserved in the event that a patent, utility model or design patent isregistered.

Copyright:Festo SE & Co. KGRuiter Straße 8273734 EsslingenGermany

Phone:+49 711 347-0

Fax:+49 711 347-2144

E-mail:[email protected]

Internet:www.festo.com

semi-rotary drive drqd-b-16 32- drqd-40 50- · the shortest permissible cycle time of the...

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