Burkert 6525 User Manual

Operating Instructions

Voltage 12V or 24V

UL / UR valid with

class 2 power supply only

Bedienungsanleitung

Instrucions de Service

Type 6524 / 6525

3/2- or 5/2-way solenoid valve

for pneumatic systems

3/2- bzw. 5/2-Wege-Magnetventil

für Pneumatik

Electrovanne 3/2 resp. 5/2 voies

pour pneumatique

We reserve the right to make technical changes without notice. Technische Änderungen vorbehalten. Sous resérve de modification techniques.

Operating Instructions 0512/06_EU-ML_00804310

Contents of the Operating Instructions for

Voltage 12V or 24V

UL / UR valid with

class 2 power supply only

3/2- or 5/2-way-solenoid valve

Type 6524 / 6525

GENERAL NOTES........................................................................................................................................................................................................................... 3

Symbols................................................................................................................................................................................................................................................. 4

General safety notes

Safety notes for the valve

Scope of delivery

............................................................................................................................................................................................................ 4

............................................................................................................................................................................................... 5

....................................................................................................................................................................................................................... 6

Warranty conditions

................................................................................................................................................................................................................ 6

TECHNICAL DESCRIPTION........................................................................................................................................................................................... 7

Valve Construction .................................................................................................................................................................................................................. 8

Technical data of the valves Type 6524 / 6525

Inscription example

.............................................................................................................................................................................................................. 10

.................................................................................................................................... 9

INSTALLATION, COMMISSIONING AND MAINTENANCE......................................................................................... 11

Installation ........................................................................................................................................................................................................................................ 12

Measures to be taken before putting into service

Faults

Maintenance

Accessories

........................................................................................................................................................................................................................................................ 16

.................................................................................................................................................................................................................................. 17

......................................................................................................................... 16

6524/6525 - 1

C

ONTENTS

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2 - 6524/6525

GENERAL NOTES

G

ENERAL NOTES

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Symbols................................................................................................................................................................................................................................................. 4

General Safety notes

Safety notes for the valve

Scope of delivery

Warranty conditions

............................................................................................................................................................................................................ 4

............................................................................................................................................................................................... 5

....................................................................................................................................................................................................................... 6

................................................................................................................................................................................................................ 6

6524/6525 - 3

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ENERAL NOTES

Symbols

In these Operating Instructions, the following symbols are used:

Indicates a working step that you will have to carry out

ATTENTION!

NOTE Indicates important additional information, tips and recommendations.

Indicates information which must be followed. Failure to do this could endanger your health or the functionality of the device

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General Safety notes

To ensure that the device will function correctly, and have a long service life, please comply with the information in these Operating Instructions, as well as with the application conditions and additional data given in the Type 6524 and Typ 6525 data sheets:

• When planning the application of the device, and during its operation, observe the general technical rules!

• Installation and maintenance work are only allowed by specialist personnel using suitable tools!

• Observe the relevant accident prevention and safety regulations applicable for electrical equipment throughout the operation, maintenance and repair of the device!

• Always switch off the voltage supply before working on the system!

• Note that lines and valves must not be unscrewed from systems that are under pressure!

• Take suitable measures to prevent unintentional operation or impermissible impairment!

• After interruption of the electrical or pneumatic supply, make sure the process is restarted in a welldefined, controlled manner!

• If these instructions are ignored, no liability will be accepted from our side, and the guarantee on the device and on accessories will become invalid!

4 - 6524/6525

Safety notes for the valve

• Keep to standard engineering rules in planning the use of and operating the device.

• Take suitable precautions to prevent inadvertent operation or damage by unauthorized action.

• Note that in systems under pressure, piping and valves may not be loosened.

0 bar, psi, kPa

G

ENERAL NOTES

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Fig.: Fluid connection

• Always switch off the power supply before intervening in the system!

Fig.: Assembly without voltage applied

• To avoid pressure drop on switching, make the volume of the pressure supply as large as possible!

• The device shall only be operated on direct current .

• Risk of injury! In continuous operation, the coil can become very hot!

6524/6525 - 5

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ENERAL NOTES

Scope of delivery

Immediately after receipt of the goods, make sure the contents are undamaged and agree with the scope of delivery stated on the packing slip. In case of irregularities, contact your local Bürkert branch or our customer service department:

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Warranty conditions

Bürkert Fluid Control Systems

Service Department

Chr.-Bürkert-Str. 13-17

D-76453 Ingelfingen

Tel.: (07940) 10-111, Fax: (07940) 10-448

eMail: info@de.buerkert.com

This document contains no warranty statements. In this connection we refer to our general sales and business conditions.

A prerequisite for validity of the warranty ist unse of the device as intended with observance of the specified conditions of use.

ATTENTION!

The warranty covers only faultless condition of the 3/2 or 5/2-way-solenoid valve Type 6524 / 6525. No liability will be accepted for consequential damage of any kind that may arise from failure or malfunctioning of the device.

6 - 6524/6525

T

ECHNICAL DESCRIPTION

TECHNICAL DESCRIPTION

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Valve Construction .................................................................................................................................................................................................................. 8

Technical data of the valves Type 6524 / 6525

Inscription example

.............................................................................................................................................................................................................. 10

.................................................................................................................................. 9

6524/6525 - 7

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ECHNICAL DESCRIPTION

Valve Construction

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Fig: 3/2-way-solenoid valve for pneumatic systems Type 6524

• Automation systems are increasingly used in all areas where control duties are to be performed. The valves form thereby the interface between electronics and pneumatics.

• The valves Type 6524 and 6525 consist of a pilot rocker solenoid valve of Type 6104 and a pneumatic seat valve. Pilot valve and housing are clipped together. The working principle enables the switching of high pressures at low power consumption and with short switching times.

• The valves can be connected in series and provided with rear plug connector mainly for valve islands (types 8640 or 8644) and with front connector lugs mainly on valve blocks for operating pneumatic drives.

• The pilot valves are provided as standard with a manual actuator.

Fig.: 5/2-way-solenoid valve for pneumatic systems Type 6525

8 - 6524/6525

Technical data of the valves Type 6524 / 6525

• Casing material PA (polyamide)

• Sealing materials FKM , NBR and PUR

• Media compressed air oiled, oil-free, dry neutral gas

• Media temperature -10 to +50 °C

• Ambient temperature -10 to +55 °C

• Pipe connection Flange

• Pneumatic modules MP11

• Supply connection G 1/4, NPT 1/4

1 (P), 3 (R), 5 (S) plug coupling, Ø 10 mm

T

ECHNICAL DESCRIPTION

• Working connection plug coupling

2 (A), 4 (B) Ø 6 mm, M5, M7

• Flow rate Q

• Operating voltage 24 V DC

• Voltage tolerance ± 10%

• Rated power 1 W

• Nominal mode of operation continuous operation (100 % duty cycle)

• Electrical connection rectangular plug with

on valve 5,08 mm grid on valve island integral plug socket on valve block rectangular plug connector

• Protection type IP 40 with rectangular plug connector

• Fitting position any, preferably drive on top

• Manual actuation standard

• Protection class 3 to VDE 0580

• Switching times [ms] measured at valve output at 6 bar and +20 °C

(see Data sheet) opening pressure development 0 to 90%

Nn

Air 300 l/min

closing pressure drop 100 to 10%

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6524/6525 - 9

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ECHNICAL DESCRIPTION

Inscription of valves

Nominal size

Circuit function

Id. No.

Voltage (±10 %) - Power

Type

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Pressure range

Fig.: Inscription example

10 - 6524/6525

I

NSTALLATION

, C

OMMISSIONING AND MAINTENANCE

INSTALLATION,

COMMISSIONING AND

MAINTENANCE

Installation ........................................................................................................................................................................................................................................ 12

Measures to be taken before putting into service

Faults

Maintenance

Asseccories

...................................................................................................................................................................................................................................................... 16

.................................................................................................................................................................................................................................. 17

......................................................................................................................... 16

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6524/6525 - 11

I

NSTALLATION

, C

Installation

Circuit function

OMMISSIONING AND MAINTENANCE

C 3/2--way-solenoid valve, servo-controlled

Pressure inlet 1 closed when de-energiesed, outlet 2 vented.

D 3/2-way-solenoid valve, servo-controlled

Pressure inlet 1 is connected to outlet 2 when de-energiesed.

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H 5/2-way-solenoid valve, servo-controlled

Pressure inlet1 is connected to outlet 2 when de-energised, outlet 4 vented.

Cleaning pipes



 Clean pipes before starting assembly to ensure reliable operation of the system.



 Fit a dirt collector if necessary to protect against faults.



Assembly position

Can be mounted in any position, preferably with the magnetic system at the top.

Preffered

direction

Fig.: Assembly position

Media

• filtered compressed air (max. particle size 5 µm), preferably non-oiled, dry

• operation is possible with oiled air

• sealing material NBR, FKM and PUR

• permissible temperature medium max. + 50 ° C

NOTE

12 - 6524/6525

ambient max. + 55 ° C

Operate valve at temperatures below O°C only with dry air.

I

NSTALLATION

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OMMISSIONING AND MAINTENANCE

Connections



 Interventions must only be made by technical personnel and with suitable tools.



 Always switch off the power supply before working on the system.



 Fit a dirt collector if necessary to protect against faults.



 Ensure compliance of the operating conditions with the performance data of the unit.



 Avoid pressure build-up in the exhaust air ducts by large silencers.



ATTENTION!

Pipes or valves in systems under pressure must not be disconnected!

Electrical connection

Stranded conductor connection

Fig.: Connection possibilities of type 6104 pilot valves

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Circular connectorRectangular connector

Servo control valve Type 6104



 Read the voltage, electrical power, type of protection and current from the rating plate!



 voltage tolerance ±10 %



 With 100% duty cycle and maximum ambient temperature the coil heats up



in the single version to approx. + 105 °C in a block to approx. + 120 °C

NOTE

Ensure a long service life for the pilot valve with 5µ filtering.

ATTENTION!

Note the voltage! Fit a rectifier in series without fail for alternating voltage!

6524/6525 - 13

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NSTALLATION

Manual override



 To operate the valve manually, turn the manual override by 90° in the direction of the arrow.



, C

OMMISSIONING AND MAINTENANCE

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Fig.: Setting the manual mode

Fluid connection

0AUTO

1/P  2/A C

2/A  3/R D

1

1/P  4/A 2/B  3/S

(Symb. show the zero position)

H

X* Pilot control

exhaust

X*

3/R 2/A

1/P

Fig.: Fluid connection (Valve- Type 6524)

NOTE

Lay out the pressure supply to have as large a volume as possible!

X*

5/R 4/A

1/P 2/B

3/S

Fig.: Fluid connection (Valve- Type 6525)

14 - 6524/6525

Mounting the valve

30 Ncm

I

NSTALLATION

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OMMISSIONING AND MAINTENANCE

20 Ncm

Fig.: Mounting the valve

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30 Ncm

20 Ncm

6524/6525 - 15

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NSTALLATION

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OMMISSIONING AND MAINTENANCE

Measures to be taken before putting into service

Check all connections, voltages and the operational pressure! Ensure that the max. operational conditions (see rating plate) will not be exceeded! Unlock the manual actuator for electrical operation!

Faults

Fault Possible cause Correction

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Valves does not switch

Valves switch with a delay, or exhaust through the venting ports

Operational voltage too low or not present

Manual override not in neutral position

Compressed air supply not available or insufficient

Valves are not in the starting position (without current) during pressure build-up

Insufficient venting of the exhaust channels due to silencers that are too small or are soiled (backpressure)

Check the electrical supply connections.

Ensure that the electrical power supply is the same as that specified on the rating plate.

Set the manual override to the zero position.

Carry out the dimensioning of the compressed air connection with volumes as large as possible (including that of upstream pressure regulators, service units, cutoff valves etc.).

Apply pressure to the valve block before you switch the valves!

Use silencers or expansion channels with sufficient dimensions.

Clean soiled silencers.

16 - 6524/6525

Impurities or foreign matter in the pilot valve or main valve

Blast through the exhaust channels with pulsed compressed air, to blow out impurities. Install a new pilot or main valve if these measures bring no improvement.

Burkert 6525 User Manual [en, de, fr]