Burkert 8821 Manuel utilisateur
Operating Instructions
Bedienungsanleitung
Manuel d‘utilisation
Type 8821
Functional unit comprising MasterJet air unit and base construction
Funktionseinheit bestehend aus MasterJet mit Lufteinheit und Sockelaufbau
Unité fonctionnelle comprenant le MasterJet avec unité pneumatique et socle
We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© Bürkert Werke GmbH & Co. KG, 2012 - 2017
Operating Instructions 1805/01_EU-EN_00810012 / Original DE
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1. OPERATING INSTRUCTIONS ..................................................................5
1.1. Symbols ..........................................................................................5
1.2. Definitions of terms .....................................................................5
2. AUTHORIZED USE........................................................................................6
2.1. Restrictions ....................................................................................6
3. BASIC SAFETY INSTRUCTIONS ...........................................................6
4. GENERAL INFORMATION ..........................................................................7
4.1. Contact address ...........................................................................7
4.2. Warranty.......................................................................................... 7
4.3. Information on the Internet .......................................................... 7
5. SYSTEM DESCRIPTION .............................................................................8
5.1. Intended application area............................................................8
5.2. General description ......................................................................8
5.3. Functions ........................................................................................8
6. TECHNICAL DATA ..........................................................................................9
6.1. Conformity ...................................................................................... 9
6.2. Standards .......................................................................................9
6.3. Operating conditions ...................................................................9
6.4. General technical data ................................................................9
6.5. Schematic circuit ........................................................................12
7. ASSEMBLY .....................................................................................................13
7.1. Safety instructions ......................................................................13
7.2. Assembly of the functional unit ................................................13
8. INSTALLATION .............................................................................................15
8.1. Safety instructions ......................................................................15
8.2. Pneumatic installation ................................................................15
8.3. Hydraulic installation ..................................................................16
8.4. Parts list for the screw connections .......................................16
8.5. Overview of MasterJet screw connections
with the pneumatic unit .............................................................17
8.6. Electrical installation ...................................................................18
8.7. Electrical installation ...................................................................19
9. START-UP .......................................................................................................20
9.1. Safety instructions ......................................................................20
9.2. Starting-up the pneumatic unit ................................................20
9.3. Starting-up Type 8821 ..............................................................21
10. OPERATION ................................................................................................... 22
10.1. Safety instructions ......................................................................22
10.2. Manual operation of the MasterJet .........................................23
10.3. Automatic operation of the MasterJet ....................................23
10.4. Sensor programming .................................................................24
11. MAINTENANCE ............................................................................................26
11.1. Safety instructions ......................................................................26
12. SPARE PARTS ..............................................................................................27
Contents
Type 8821
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Type 8821
13. REPAIRS ..........................................................................................................28
13.1. Replacing pilot valve Type 6014 .............................................28
13.2. Replacing pilot valve Type 0450 .............................................29
13.3. Replacing flow-rate sensor SE12 ...........................................30
13.4. Replacing the display and evaluation unit
(electronics module SE32) .......................................................31
13.5. Replacing drive DM63 and DM50 ..........................................32
13.6. Replacing expansion cylinder DM63 .....................................33
13.7. Replacing the pneumatic unit ..................................................34
14. SHUTDOWN................................................................................................... 35
14.1. Safety instructions ......................................................................35
14.2. Disassembly of Type 8821 .......................................................35
15. TRANSPORTATION, STORAGE, DISPOSAL .................................36
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5
Operating Instructions
Type 8821
1. OPERATING INSTRUCTIONS
The operating instructions describe the entire life cycle of the device.
Keep these instructions in a location which is easily accessible to
every user, and make these instructions available to every new owner
of the device.
The operating instructions contain important safety
information!
Failure to observe these instructions may result in hazardous
situations.
• The operating instructions must be read and understood.
1.1. Symbols
DANGER!
Warns of an immediate danger!
• Failure to observe the warning will result in a fatal or serious
injury.
WARNING!
Warns of a potentially dangerous situation!
• Failure to observe the warning may result in serious injuries or
death.
CAUTION!
Warns of a possible danger!
• Failure to observe this warning may result in a moderate or
minor injury.
NOTE!
Warns of damage to property!
• Failure to observe the warning may result in damage to the
device or the equipment.
Indicates important additional information, tips and
recommendations.
Refers to information in these operating instructions or in
other documentation.
→Designates a procedure which you must carry out.
1.2. Definitions of terms
In these instructions, the maximized version of the term "functional
unit" comprises the following components:
MasterJet, pneumatic unit and base construction.
While the minimum version only comprises
the pneumatic unit and base construction.
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6
Authorized Use
Type 8821
2. AUTHORIZED USE
Non-authorized use of the functional unit may be dangerous
to people, nearby equipment, and the environment.
• The functional unit is designed to control and monitor the cool-
ing circuits on industrial production systems.
• The functional unit must not be used in potentially explosive
areas.
• Use according to the authorized data, operating conditions, and
conditions of use specified in the contract documents and oper-
ating instructions. These are described in the chapter entitled
"Technical Data".
• The functional unit must only be used in conjunction with third-
party devices and components recommended and approved by
Bürkert.
• Correct transportation, storage, and installation, as well as care-
ful use and maintenance are essential for reliable and faultless
operation.
• Do not make any external modifications to the device housings.
Do not paint housing parts or screws.
• Only use the functional unit as intended.
2.1. Restrictions
If exporting the system/device, observe any existing restrictions.
3. BASIC SAFETY INSTRUCTIONS
These safety instructions do not make allowance for any
• Contingencies and events which may arise during the installation,
operation, and maintenance of the devices.
• Local safety regulations – the operator is responsible for observing
these regulations, also in relation to the installation personnel.
Danger – high pressure!
• Turn off the pressure and vent the lines before loosening lines
or valves.
Risk of electric shock!
• Switch off the power supply and secure it against reactivation
before reaching into the device or equipment!
• Observe applicable accident prevention and safety regulations
for electrical equipment!
General hazardous situations!
To prevent injuries:
• Do not supply the medium connectors of the system with
aggressive or flammable media.
• Do not supply the compressed-air connections with any liquids.
• The impact protection on the top of the device must not be
loaded with more than 70 kg.
• Ensure that the system cannot be activated unintentionally.
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General Information
Type 8821
• Installation and repair work may be carried out by authorized
technicians only and with the appropriate tools.
• After an interruption in the electrical or pneumatic supply,
ensure that the process is restarted in a defined or controlled
manner.
• The device must only be operated when in a perfect condition
and in consideration of the operating instructions.
• The general rules of technology apply to application planning
and operation of the device.
NOTE!
Electrostatic sensitive components/modules!
The device contains electronic components which react sensitively
to electrostatic discharge (ESD). Contact with electrostatically
charged persons or objects are hazardous to these components.
In the worst case scenario, they will be destroyed immediately or
will fail after start-up.
• Observe the requirements in accordance with EN 61340-5-1
and -5-2 to minimize/avoid the possibility of damage caused by
a sudden electrostatic discharge!
• Also, ensure that you do not touch electronic components when
the power supply voltage is present!
4. GENERAL INFORMATION
4.1. Contact address
Germany
Bürkert Fluid Control Systems
Technik Center
Christian-Bürkert-Str. 13-17
D-74653 Ingelfingen
Germany
Tel. + 49 (0) 7940 - 10 91 110
Fax + 49 (0) 7940 - 10 91 448
E-mail: [email protected]
International
Contact addresses can be found on the final pages of the printed
operating instructions.
And also on the Internet at:
www.burkert.com
4.2. Warranty
The warranty is only valid if the functional unit is used as intended in
accordance with the specified application conditions.
4.3. Information on the Internet
The operating instructions and data sheets for Type 8821 can be found
on the Internet at:
www.burkert.com
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System Description
Type 8821
5. SYSTEM DESCRIPTION
5.1. Intended application area
Type 8821 is intended for the use in industrial systems, especially
robot applications used for resistance spot welding for controlling
and monitoring cooling water circuits.
5.2. General description
Type 8821 is used to control and monitor the flow of coolant in
industrial robot applications used for resistance spot welding.
The coolant circuit is controlled by the unit and the required coolant
quantity is monitored.
Additionally, the water pressure within the system is reduced when
the flow of cooling water is switched off.
This is advantageous when replacing the welding electrodes as this
prevents any cooling water from escaping.
5.3. Functions
• The main valve (NC) for the feed and return of the cooling circuit is
controlled via pilot valve Type 6014.
• During shutdown, the pressure in the cooling system is automatically
reduced by the delayed drive control in the return.
• The residual pressure is released via delayed switched pilot valve
Type 0450 and pneumatic expansion cylinder DM63 in the closed
cooling circuit.
• An optical cooling water flow sensor Type 8012 DN8, comprising
evaluation electronics with integrated impeller SE12, fitting SO30
and electronics module SE32 monitors the flow rate and sends
signal outputs to the overriding control or robot in accordance with
the programmed monitoring windows.
• The flow-rate sensor comprises a flow direction detector.
• The flow quantity of the cooling water can be limited via a manual
adjusting screw on the pneumatic feed drive.
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Technical Data
Type 8821
6. TECHNICAL DATA
6.1. Conformity
Type 8821 conforms with the EC Directives according to the EC
Declaration of Conformity.
6.2. Standards
The applied standards, which verify conformity with the EC Direc-
tives, can be found on the EC-Type Examination Certificate and / or
the EC Declaration of Conformity.
6.3. Operating conditions
WARNING!
Risk of injury!
Malfunction if used outside!
• Do not use Type 8821 outdoors and avoid heat sources which
may cause the permissible temperature range to be exceeded.
Permitted temperatures
Ambient temperature: +5 to +55°C
Medium temperature: +5 to +90°C
Media: Aggressive and neutral fluids
Protection class: IP65 in accordance with EN 60529
6.4. General technical data
Weight: 9.5 kg
Housing material: VA / brass
External sealing material: EPDM
6.4.1. Dimensions
271,3
199,5 85,6
199,8
276,3
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Fig. 1: Type 8821, MasterJet with pneumatic unit and base construction;
rear view
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10
Technical Data
Type 8821
199,5
216,1
Fig. 2: Type 8821, MasterJet with pneumatic unit and base construction;
bottom view
216
192,6
Fig. 3: Type 8821, MasterJet with pneumatic unit and base construction;
left side view
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