Burkert 6516 User manual

Operating Instructions
Type 6516-6519
Multiple blocks and modular pneumatic base rail type MP07

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© Bürkert Werke GmbH & Co. KG, 2021
Operating Instructions 2103/14_EU-en_00803150 / Original DE

3
Type 6516 - 6519
1 OPERATING INSTRUCTIONS............................................... 4
1.1 Symbols....................................................................... 4
1.2 Denitionofterms ....................................................... 4
2 INTENDED USE .................................................................... 5
3 BASIC SAFETY INSTRUCTIONS.......................................... 5
4 GENERAL NOTES................................................................. 7
4.1 Contact address.......................................................... 7
4.2 InformationontheInternet.......................................... 7
5 STRUCTURE AND DESCRIPTION ....................................... 7
5.1 Design ......................................................................... 7
5.2 Description .................................................................. 8
5.3 Designof5/3-wayvalve,5/2-waypulsevalve ............ 9
5.4 Circuitfunctions .......................................................... 9
6 TECHNICAL DATA............................................................... 10
6.1 Conformity................................................................. 10
6.2 Standards .................................................................. 10
6.3 Operating conditions ................................................. 10
6.4 Electrical data............................................................ 11
6.5 Type label .................................................................. 11
7 ASSEMBLY.......................................................................... 12
7.1 AssemblyofthepilotvalveType6106(forType ..........
 6516/6517)or6014(forType6518/6519) ................. 12
7.2 Assemblyofthemultipleblock ................................. 14
7.3 Valveblockassembly ................................................ 15
7.4 Singlevalveassembly ............................................... 16
8 INSTALLATION .................................................................... 16
8.1 Pneumatic installation ............................................... 17
8.2 Electrical installation.................................................. 17
9 START-UP............................................................................ 19
10 MAINTENANCE, TROUBLESHOOTING ............................. 19
11 DISASSEMBLY.................................................................... 20
11.1 Valveblockdisassembly ........................................... 21
11.2 Disassemblingmulti-blocks ...................................... 21
11.3 Disassemblinghoselines .......................................... 21
12 CONNECTION MODULE RIGHT......................................... 21
13 PULSED OPERATION ......................................................... 21
14 TRANSPORTATION, STORAGE, DISPOSAL...................... 21
Contents
English

4
Operating Instructions
Type 6516 - 6519
1 OPERATING INSTRUCTIONS
Theoperatinginstructionsdescribetheentirelifecycleofthe
device.Keeptheseinstructionsreadytohandattheoperation
site.
Important safety information!
▶Carefullyreadtheseinstructions.
▶Observeinparticularthesafetyinstructions,intendeduse
and operating conditions.
▶Personswhoworkonthedevicemustreadandunderstand
theseinstructions.
1.1 Symbols
DANGER!
Warns of an immediate danger.
▶Failuretoobservewillresultindeathorseriousinjuries.
WARNING!
Warns of a potential danger.
▶Failuretoobservethesewarningsmayresultinseriousinju-
riesordeath.
CAUTION!
Warns of a potential hazard.
▶Failuretoobservemayresultinmoderateorminorinjuries.
NOTE!
Warns of damage.
Important tips and recommendations.
Designatesinstructionstoavoiddanger.
Designatesaprocedurewhichyoumustcarryout.
1.2 Denition of terms
Term Denition for these instructions
Device Multipleblockconsistingofsolenoidvalvesof
types 6516 – 6519 and a modular pneumatic
baserailofthetypeMP07.
English

5
Intended use
Type 6516 - 6519
2 INTENDED USE
The multiple block with valves types 6516 – 6519 is designed
to control neutral media and compressed air.
▶Usethedeviceonlyasintended.Non-intendeduseofthe
devicemaybedangeroustopeople,nearbyequipmentand
theenvironment.
▶Usethedeviceonlyinconjunctionwiththird-partydevicesand
componentsrecommendedorapprovedbyBürkert.
▶Prerequisitesforsafeandtrouble-freeoperationinclude
correcttransportation,correctstorage,installation,start-up,
operation and maintenance.
▶Observethepermissibledata,operatingconditionsandcon-
ditionsofuseoftherespectivedevicesorproducts.These
specicationscanbefoundinthecontractdocuments,the
operatinginstructionsandonthetypelabel.
▶Withaproperlyconnectedandmountedcableplug,e.g.
Bürkerttype2516(fortype6516/6517)ortype2518(fortype
6518/6519),theunitfullsdegreeofprotectionIP65according
toDINEN60529/IEC60529.
3 BASIC SAFETY INSTRUCTIONS
Thesesafetyinstructionsdonottakeintoaccountanycoinci-
dencesoreventsoccurringduringinstallation,operationand
maintenance.Theoperatorisresponsibleforobservingtheloca-
tion-specicsafetyregulations,alsowithreferencetopersonnel.
Risk of injury due to high pressure and any escaping media.
▶Switchothepressurebeforeworkingonthedeviceor
system.Ventoremptythelines.
Risk of injury from electric shock.
▶Switchothepowersupplybeforeworkingonthedeviceor
system.Secureitagainstreactivation.
▶Observeanyapplicableaccidentpreventionandsafetyregu-
lationsforelectricaldevices.
Risk of injury from quickly accelerating device parts and
unconnected compressed air hoses apping around.
▶Beforeapplyingpressuretothevalve,checkallhosecon-
nectionsandttingsfortight,securet.
Risk of burns or re from hot device surfaces due to longer
duty cycles.
▶Onlytouchthedevicewhenwearingprotectivegloves.
▶Keepthedeviceawayfromhighlyammablesubstances
and media.
Risk of injury due to malfunctioning valves with alternating
current (AC).
Aseizedcorecausesthecoiltooverheat,whichleadstofunc-
tionalfailure.
▶Monitortheworkingprocessforproperfunction.
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6
Intended use
Type 6516 - 6519
General hazardous situations.
Topreventinjuries,observethefollowing:
▶Observethegeneralrulesoftechnology.
▶Inthepotentiallyexplosiveatmosphere,onlyusedevices
thatareapprovedforthispurpose.Thesedevicesareidenti-
edbyaseparate“Ex”typelabel.Beforeuse,notetheinfor-
mationontheseparateExtypelabelandtheExadditional
instructionsortheseparateExoperatingInstructions.
▶ApprovalssuchasEx,UL,UR,CSA,DVGWetc.aremarked
onthetypelabelorbyaspecialsticker.
▶Usethedeviceonlywhenitisinperfectconditionandin
accordancewiththeoperatinginstructions.
▶Securethedeviceorsystemtopreventunintentional
activation.
▶Afteraninterruptioninthepowersupply,ensurethatthe
process is restarted in a controlled manner.
▶Donotmodifythedevice.
▶Donotmechanicallyloadthedevice.
▶Onlytrainedtechniciansmayperforminstallationandmain-
tenancework.
▶Installthedeviceaccordingtotheregulationsapplicablein
therespectivecountry.
NOTE!
Electrostaticallysensitivecomponentsandassemblies.
Thedevicecontainselectroniccomponentsthataresuscep-
tibletotheeectsofelectrostaticdischarging(ESD).Com-
ponentsthatcomeintocontactwithelectrostaticallycharged
personsorobjectsareatrisk.Intheworstcasescenario,
thesecomponentswillbedestroyedimmediatelyorfailafter
start-up.
▶MeettherequirementsspeciedbyEN61340-5-1tomini-
miseoravoidthepossibilityofdamagecausedbyasudden
electrostaticdischarge.
▶Donottouchelectroniccomponentswhenthesupplyvolt-
age is connected.
English

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General notes
Type 6516 - 6519
4 GENERAL NOTES
4.1 Contact address
Germany
BürkertFluidControlSystems
Sales Center
Christian-Bürkert-Str.13-17
D-74653Ingelngen
Tel.+49(0)7940-10-91111
Fax+49(0)7940-10-91448
E-mail:[email protected]
International
Thecontactaddressescanbefoundonthebackpagesofthe
printed operating instructions.
Theyarealsoavailableonlineat:www.burkert.com
4.2 Information on the Internet
OperatinginstructionsanddatasheetsforBürkertproductscan
befoundontheInternetat:www.buerkert.de
5 STRUCTURE AND DESCRIPTION
5.1 Design
Typ 6519
1
3
4
5
2
1
3
4
5
2
Typ 6517
Fig. 1: Valve assembly type 6516/6517 (using type 6517 as an
example) and type 6518/6519 (using Type 6519 as an example)
Item Designation
1Pilotvalvetype6106(fortype6516/6517)
Pilotvalvetype6014(fortype6518/6519)
2Manualoverride
3Indicator pin (seechapter“5.1.2Indicatorpinfor
pressuretest”)
4 Pilot pressure port
5 Working port 2 or 2 and 4
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8
Structure and description
Type 6516 - 6519
5.1.1 Manual override
→Tooperatethevalvemanually,pressthemanualoverrideand
turnit90°clockwise(untilitstops).Themanualoverrideis
locked and does not reset automatically.
→Onlyoperatethemanualoverridewhenthepoweriso.
5.1.2 Indicator pin for pressure test
• Indicatorpincanbepushedin:Pressureinthevalve<1bar
• Indicatorpincannotbepushedin:Valveispressurised.
• Indicatorpinspringsback:Valveispressurised.
→Foreveryfunctioncheck,theindicatorpinonthevalveand
themulti-blockmustbepressedinagain.
5.1.3 Connections
Theconnectionsaremarkedwithnumbersforbetterassignment.
Connection number Designation
1 Pressure port
2 and 4 Working port
3 and 5 Exhaustport
12 and 14 Pilot pressure port
5.2 Description
Thevalvesconsistof:
• 3/2-waypilotvalve(type6014)withdierentelectricalcon-
nectionvariants.
For type 6518/6519:
Pilotvalvecoilcanbelockedin4x90°steps,inbetweenit
canbepositionedasdesiredaroundthecoreguidetube.
• Valvebodywithdiaphragmandseatseals(3/2and5/2-way
valve)orslide(5/3-wayvalve).
• Workingconnections2(B)/4(A)
• Supplyandexhaustport1(P)/3(R)/5(S)withG1/4internal
threadorpush-inconnection(onlyforworkingconnections2
(B)and4(A))forhoseouterdiameter8mm.
Thevalvescanbemountedonthemodular,pneumatictype
MP07baserailstoformvalveblocks.Anyinstallationposition,
preferablywithsolenoidactuatorontop.
Thecableplugtype2516(fortype6516/6517)ortype
2518(fortype6518/6519)isusedtocontrolDCandAC
coilswithpower≤5Wwithoutexternalpowersupply.
English

9
Structure and description
Type 6516 - 6519
5.3 Design of 5/3-way valve, 5/2-way
pulse valve
1
3
4
5
2
1
2
Typ 6517
1
3
4
5
1
2
2
Typ 6519
Fig. 2: Design of 5/3-way valve, 5/2-way pulse valve
Item Designation
1Pilotvalvetype6106(fortype6516/6517)
Pilotvalvetype6014(fortype6518/6519)
2Cableplugtype2516(fortype6516/6517)
Cableplugtype2518(fortype6518/6519)
3Exhaustport5
4 Pressure port 1
5Exhaustport3
5.4 Circuit functions
2(A)
1(P) 3(R)
12
C, 3/2-way valve (*for vacuum 1),
with auxiliary pilot air)
Inidleposition,pressureport1(P/NC)
closed,workingport2(A/OUT)open
afterport3(R/NO).
2(A)
1(P) 3(R)
12
*Vacuum,withauxiliarypilotair
2(B)
1(P) 3(R)
10
D, 3/2-way valve
Inidlepositionpressureport1(P/NO)
afterworkingport2(B/OUT)open,
port3(R/NC)closed.
14
12
4 2
5
1
3
H, 5/2-way valve
Inidlepositionpressureport1(P)
afterworkingport2(A)open,working
port4(B)afterport5(S)open,port3
(R)closed.
14
12
4 2
513
H, 5/2-way valve
Pulsevariant(2coils)
14
12
4 2
5 1 3
H, 5/3-way valve
Inthecentreposition,allconnections
are closed. Pressure port at 1.
Workingportsat4and2.Ventthe
workingconnectionsafter5or3.
English

10
Structure and description
Type 6516 - 6519
14 12
4 2
5 1 3
H, 5/3-way valve
Inthemiddleposition,pressureport
1(P)closed,bothworkingports2(A)
and4(B)openafteroutlet3(R)or5
(S).
1) The vacuum generator must be connected to port 1.
6 TECHNICAL DATA
6.1 Conformity
ThedeviceconformstoEUdirectivesaspertheEUDeclaration
ofConformity.
6.2 Standards
Theappliedstandardsasusedtoverifycompliancewiththe
DirectivescanbefoundintheECtypeexaminationcerticate
and/ortheECDeclarationofConformity.
6.3 Operating conditions
NOTE!
Pilot pressure for pneumatic control unit depends on the
pressure of the ow medium; it must be between 2–8 bar (at
least 70% of operating pressure).
NOTE!
Pressure dierence between port 1 and 3/5 ≥ 2 bar
Ambient temperature –10...+55°C
Medium temperature –10...+50°C
Medium • Filteredcompressedair(particle
sizemax.10µm),preferablyunlubri-
cated(operationwithlubricatedairis
possible)
• Neutralgases
Operating pressure
range
2–8bar
6.3.1 Materials
Sealingmaterialsdependonthebodymaterials:
Body
material
PA AL
anodised
AL
ematalised
VA
Seal
material
NBR,PUR NBR FKM/NBR PU,NBR,
FKM
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11
Structure and description
Type 6516 - 6519
6.4 Electrical data
6516/6517 6518/6519
Electrical
connection
Cable plug type
2516onthetagcon-
nectionsofthecoil
(torqueforfastening:
0.4bis0.5Nm).
Cable plug type
2518onthetagcon-
nectionsofthecoil
(torqueforfastening:
0.5bis0.6Nm).
Additional elec-
trical connection
options
Type 6106 or 8640 Type 6014 or 8640
Voltage tolerance ±10%
Degreeof
protection
IP65
Onlyinconjunction
withcableplugtype
2516
IP65
Only in connection
withcableplugtype
2518
Cable plug Can be mounted
osetby180°for
thecableoutlet
selected.
can be mounted
osetby4x90°
forthecableoutlet
selected.
NOTE!
Damage to the appliance when screwing the cable plug.
▶Makesurethattheatsealisseatedproperly.
6.5 Type label
Made in Germany
6519 H 9,0
G1/4 PN2–8bar
230V 50–60Hz 2W
00174395 W1YMG
2
3
4
1
Fig. 3: Example of type plate of pilot-operated solenoid valve type
6519
Item Text Designation
1 6519 Type
HCircuitfunction
9.0 DN
2G1/4 Connection type
PN2–8
bar
Operating pressure range
3 230V Voltage
50–60Hz Frequency
2W Capacity
4 00174395 Order number
W1YMG Manufacturecode(encrypted)
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12
Assembly
Type 6516 - 6519
7 ASSEMBLY
WARNING!
Risk of injury due to improper assembly.
▶Onlytrainedtechniciansmayperformassemblywork.
▶Performassemblyworkusingsuitabletoolsonly.
Risk of injury from quickly accelerating device parts and
unconnected compressed air hoses apping around.
▶Beforeapplyingpressuretothevalve,checkallhoseconnec-
tionsandttingsfortight,securet.
Risk of injury due to unintentional activation of the system
and uncontrolled restart.
▶Securethesystemagainstunintentionalactivation.
▶Followingassembly,ensureacontrolledrestart.
Prior to assembly
→Cleanthepipelines.
→Ifnecessary,attachdirttrapupstream.
→Donotusethecoilasaleverwhenscrewinginthe
connections.
7.1 Assembly of the pilot valve Type
6106 (for Type 6516/6517) or 6014
(for Type 6518/6519)
WARNING!
Risk of injury due to leaking valve.
▶MakesurethattheO-rings/sealsarecorrectlyseatedinthe
valve.
Overheating, risk of re.
Withoutapre-installedvalve,connectingthecoilwillcause
overheatinganddestroythecoil.
▶Onlyconnectthecoilafterthevalvehasbeenassembled.
Danger of electric shock if the coil is assembled incorrectly.
▶Whenassembling,makesurethatthecoilisrmlyseatedon
thehousinglidsotheprotectiveconductorconnectionofthe
coilisconnectedtothevalvebody.
NOTE!
Do not use the coil as a lever arm when screwing it in.
English

13
Assembly
Type 6516 - 6519
Type 6106 (for type 6516/6517)
→Alwaysassembleinthepositionshown.Ifnecessary,rotate
thecoil180°.
→Screwthehousingofthepilotvalveontothehousingofthe
pneumaticvalvewithtwoscrews.Observethemaximum
tighteningtorqueof1.5Nm.
→PositionthesolenoidcoilandscrewitonwithM2screws.
Observeamaximumtighteningtorqueof0.15Nm.
Type 6014 (for type 6518/6519)
→Screwthehousingofthepilotvalveontothepneumaticvalve.
Observethemaximumtighteningtorqueof1.5Nm.
→Placethelidonthehousing.
→FittheO-ringontothecoreguidetube.
→Positionthecoilontothecoreguidetube.Thecoilcanbe
rotated4x90°(withblockassmblyonly2x180°).
→Fastenthecoilnutwithanopen-endwrench.Observea
maximumtighteningtorqueof5Nm.
8
6
2
7
1
4
5
3
Fig. 4: Assembling pilot valve types 6517
Item Designation
1Pneumaticvalve
2Pilotvalve
3M2screws
4 Solenoid
5Screws
6Pilotvalvehousing
7Manualoverride(0=restposition;1=switchposition)
8Mainvalvehousing
English

14
Assembly
Type 6516 - 6519
9
6
2
8
7
1
4
5
3
Fig. 5: Assembling pilot valve type 6519
Item Designation
1Pneumaticvalve
2Pilotvalve
3Nut
4 Solenoid
5O-ring
6 Core guide tube
7 Housing lid
8Manualoverride
9 Housing
7.2 Assembly of the multiple block
1
Max.
1.5Nm
2 3 4 5 6 7 6
89
1011
Fig. 6: Example of a multi-block with type 6519 valves
Item Designation
1Connectionmoduleleft
2Latchtab
3Latchhook
4 3 base modules
5Supplychannels1(P),3(S),5(R)
6Connectionmoduleright
7 2 base modules
English

15
Assembly
Type 6516 - 6519
Item Designation
8 Pressure indicator pin
9Ventingthepilotcontrol
10 O-ring
11 Proleseal
→Beginassemblywithconnectionmoduleontheleft(see“Fig.
6”)
→Checkmodulesforcompleteinstallation.1O-ringper
connection.
→LightlyoilorgreaseallO-ringsbeforeengaging.
→Engagethelatchhooksofthemoduletobeattachedinthe
latchgroovesoftheprecedingmodule.Makesurethatthe
O-ringsareproperlyseated.
→Ensuretheprolesealsarecorrectlyseatedonthebase
module.
CrushedO-ringsandprolesealsleadtoleakyblocks.
→Fasteneachvalvetothebasemodulewith2M4screws.
Observeamaximumtighteningtorqueof1.5Nm.
7.3 Valve block assembly
5
4
3
2
1
5
4
3
2
1
Typ 6519Typ 6517
Fig. 7: Mounting the valve block
Item Designation
1 Electrical connection can be rotated 180°
2 Wall mount
3Standardrail35x15DIN50022
4Standardrail75x25DIN50023
5 Connection module
English

16
Assembly
Type 6516 - 6519
7.3.1 Standard rail assembly
→Hookthevalveblockwiththeuppergrooveintothestandard
rail.
→Snapthelowerclampingpiecesintothestandardrail.
→Tightenthescrewsontheclampingpieces.
Standard rail
• Standardrail35x15DIN50022(standard)
• Standardrail75x25DIN50023
Whenusingthestandardrail75x25DIN50023,repo-
sitionthepre-installedscrewsaccordinglywithclamping
pieces and springs.
7.3.2 Wall mount
→FastenthevalveblockdirectlytothewallwithM5screws.
7.4 Single valve assembly
→FastenindividualvalvesdirectlytothewallwithM4screws
(see“Fig.8”).
1
2
1
2
Typ 6519Typ 6517
Fig. 8: Fastening single valves
Item Designation
1Singlevalve
2M4screw
8 INSTALLATION
WARNING!
Risk of injury due to improper installation
▶Onlytrainedtechniciansmayperforminstallationwork.
▶Onlycarryoutinstallationswithsuitabletools.
Risk of injury due to unintentional activation of the system
and uncontrolled restart.
▶Securethesystemagainstunintentionalactivation.
▶Followinginstallation,ensureacontrolledrestart.
English

17
Assembly
Type 6516 - 6519
8.1 Pneumatic installation
DANGER!
Risk of injury due to high pressure and any escaping media.
▶Switchothepressurebeforeworkingonthedeviceor
system.
Ventoremptythelines.
DANGER!
Risk of injury from quickly accelerating device parts and
unconnected compressed air hoses apping around.
▶Beforeapplyingpressuretothevalve,checkallhoseconnec-
tionsandttingsfortight,securet.
Installation position of the valves:
• any,preferablysolenoidactuatorontop
Before connection
→Checkthehoselinesforcontaminationandcleanthem.
→Ifnecessary,installdirttrapsupstreamofthevalveinlet(≤500µm).
Pneumatic connection:
NOTE!
Note the assignment of the connections (see chapter “5.1.3
Connections”)
→Pushthehoselinesasfarastheywillgointothehosepush-in
connectionsofthesolenoidvalves.
→UsePTFEtapeorelastomersealforsealing.
→Alignhoselines
→Connectthesupplyandworkinglinestothevalveblock.
Requirements for hose lines
• Minimumhardness40ShoreD(accordingtoDIN53505or
ISO868).
• OuterdiameteraccordingtoDIN73378(maximumpermis-
sibledeviation±0.1mmfromnominaldimension).
• Burr-free,cutoatrightanglesandundamagedontheouter
diametersurface.
8.2 Electrical installation
DANGER!
Risk of injury from electric shock.
▶Switchothepowersupplybeforeworkingonthedeviceor
system.Secureitagainstreactivation.
▶Observeanyapplicableaccidentpreventionandsafetyregu-
lationsforelectricaldevices.
Ifthereisnoprotectiveconductorcontactbetweenthecoiland
thehousing,thereisariskofelectricshock!
▶Alwaysconnecttheprotectiveconductor.
▶Checkelectricalcontinuitybetweencoilandhousing.
→Maketheelectricalconnectionstothepilotvalveswhile
observingthedataonthetypeplate.
English

18
Assembly
Type 6516 - 6519
8.2.1 Electrical installation of cable plugs
1
Observe maximum
tightening torque
value!
2
Fig. 9: Installation of cable plug types 2516 (for type 6516/6517)
Item Designation
1 Seal
2Approvedcablepluge.g.type2516orotheraccording
toDINISO175301-803FormC
Observe maximum
tightening torque
value!
1
2
Fig. 10: Installation of cable plug types 2518 (for type 6518/6519)
Item Designation
1 Seal
2Approvedcablepluge.g.type2518orotheraccording
toDINISO175301-803FormA
→Screwonthecableplug(seedatasheetforapprovedtypes),
observingthemaximumtighteningtorqueof0.4to0.5Nm
(type2516)or0.5to0.6Nm(type2518).
→Checkthatthesealiscorrectlytted.
→Connecttheprotectiveconductorandcheckelectricalconti-
nuitybetweencoilandhousing(see“Tab.1”).
English

19
Maintenance, troubleshooting
Type 6516 - 6519
NOTE!
If the screw is pointing upwards when installed, insert a seal
made of a material compatible with the process under the
screw head.
Resistor Testvoltage Test current
Maximum0.1Ω 12V 1A
Tab. 1: Protective conductor function test values
9 START-UP
WARNING!
Risk of injury due to improper operation.
▶Priortostart-up,itmustbeensuredthattheoperatingper-
sonnelarefamiliarwithandfullyunderstandthecontentsof
theoperatinginstructions.
▶Onlyauthorisedtechniciansmaystartupthedeviceor
system.
→Checkconnections,voltageandoperatingpressure.
→Observedataonthetypelabel
→Checkthecorrectassignmentofconnections1and3or5.Do
notmixthemupunderanycircumstances.
→Forelectricaloperation,unlockthemanualoverride.
10 MAINTENANCE,
TROUBLESHOOTING
WARNING!
Risk of injury if maintenance work is not carried out correctly.
▶Onlytrainedtechniciansmayperformmaintenancework.
▶Performmaintenanceworkusingsuitabletoolsonly.
Risk of injury due to unintentional activation of the system
and uncontrolled restart.
▶Securethesystemagainstunintentionalactivation.
▶Ensureacontrolledrestartaftermaintenanceiscompleted.
Fault Possible cause Remedy
Valvesdo
notswitch
Nooperatingvoltage
oroperatingvoltage
toolow
Checkelectricalcon-
nection
Ensureoperatingvoltage
according to type label
Manualoverridenotin
zero position
Bringmanualoverrideto
zero position.
Pressuresupplyinsuf-
cientornotavailable
Setuplarge-volume
pressuresupply(alsofor
upstreamdevicessuch
aspressureregulators,
maintenanceunits,on/o
valves,etc.)
Minimum operating
pressure ≥2 bar
English

20
Maintenance, troubleshooting
Type 6516 - 6519
Fault Possible cause Remedy
Valves
switch
witha
delay or
blowo
atthe
exhaust
ports
Pressuresupplyinsuf-
cientornotavailable
Setuplarge-volume
pressuresupply(alsofor
upstreamdevicessuch
aspressureregulators,
maintenanceunits,on/o
valves,etc.)
Minimum operating
pressure ≥2 bar
Valvesarenotinhome
position(de-ener-
gized)duringpressure
build-up
Applypressuretothe
valveblockbeforethe
valvesareswitched.
Insucientventilation
oftheexhaustair
ducts due to too small
ordirtysilencers(back
pressure)
Use suitably sized
silencersorexpansion
vessels.Cleanthedirty
silencers.
Impuritiesorforeign
matterinthepilotor
pneumaticvalve
Apply pulsed pressure to
theexhaustairductsto
blowouttheimpurities.
Installanewpilotorpneu-
maticvalve.
Fault Possible cause Remedy
Leaky
valve
blocks
Missingorcrushed
O-ringsbetweenthe
modules
Identifyleakormissing
seals
Missing or incorrectly
positionedatseals
betweenvalveand
base plate
Insert missing seals or
replace damaged seals
11 DISASSEMBLY
WARNING!
Risk of injury due to high pressure and any escaping media.
▶Switchothepressurebeforeworkingonthedeviceor
system.
Ventoremptythelines.
Risk of injury from electric shock.
▶Switchothepowersupplybeforeworkingonthedeviceor
system.Secureitagainstreactivation.
▶Observeanyapplicableaccidentpreventionandsafetyregu-
lationsforelectricaldevices.
WARNING!
Risk of injury due to improper disassembly.
▶Onlytrainedspecialistpersonnelmaycarryoutthedisassembly.
▶Performdisassemblyworkusingsuitabletoolsonly.
Risk of injury from dangerous uids.
▶Beforelooseninglinesorvalves,ushouthazardousmedia,
depressuriseanddrainthelines.
English