MultiPress S Operating manual 3.0, English S-e-3-0.pdfFor your own safety 6 MultiPress S Operating manual 3.0 Rev: 3.6.2009 For your own safety Designated Use MultiPress S The multilayer

MultiPress S

Operating manual3.0, English

Arti

keln

umm

er: x

xx_x

xx Insert title photo:

Size: 11,5 cm x 9,5 cm

Alignment: left: 8,5 cm top: 1,5 cm

Item

No:

121

087

MultiPress S

Operating manual3.0, English

LPKF Laser & Electronics AG Osteriede 7 D-30827 GarbsenGermany

Telephone ++ 49 - 51 31 - 70 95 - 0 Fax ++ 49 - 51 31 - 70 95 - 90E-mail [email protected] http://www.lpkf.de

2 MultiPress S Operating manual 3.0 Rev: 3.6.2009

Copyright© 2008 LPKF AG Any distribution or copying of this manual or parts of this manual in any form and use of its contents require the written permission of the LPKF AG. Subject to modifications. Item No: 121087

Introduction

MultiPress S Operating manual 3.0 Rev 3.6.2009 3

Introduction

The LPKF MultiPress S is an easily handable benchtop system for the low-cost pressing of multilayer printed circuit boards for the electronic sector.The MultiPress S is suitable in particular for prototype and small series production. It allows rigid, rigid/flexible and flexible printed circuit board materials to be pressed to a multilayer PCB. The uniform pressure and temperature distribution over the entire press surface ensures a homogeneous material composite. The menu-guided operation is easy to learn and does not require any special previous knowledge. It is possible to press multilayers ranging in size from 100 x 100 mm to 200 x 75 mm. Program-controlled temperature and pressure guarantee optimum results.

Equipment

• Menu-guided control via LCD display

• A permanently defined process profile for multilayers of 4, 6 and 8 layers.

• Six freely configurable process profiles for processing different materials and applications

• Versions:– Automatic hydraulic pump with process-guided pressure control. – Hand pump for manual pressure control

Optional accessories

• Mobile benchtop, a benchtop developed especially for the requirements of the MultiPress S, allowing its use in different rooms.

• Automatic hydraulic pump for simple changeover of the MultiPress S via a hand pump to fully automatic operation with process-controlled pressure.

• LPKF base materials and consumables

Information on this manual



This manual describes the installation and operation of the LPKF multilayer press MultiPress S in the following versions:

• MultiPress S with automatic hydraulic system • MultiPress S with hand pump

Prior to mounting and commissioning of the machine, you must first familiarize yourself with its function, use and measures required for safe operation. Owing to the individual intended applications and the base materials/consumables used, only the general procedure can be described here. Therefore, prior to using the machine, you should also read the data sheets of the materials used and observe the application instructions contained therein.If, after reading this manual, a situation should arise in which you are unsure about how to install, use or service the machine, contact the LPKF Support or consult a person skilled in the art.As the machine owner, your obligations in connection with this manual include the following:

• Making sure that the machine is only operated by persons who have read this manual and/or have been informed about its contents.

• Making sure that the operating manual and all relevant documents are always within easy reach near the machine in a legible condition and in their entirety.

Target groupThis manual is directed at persons who have basic knowledge in circuit board production for the electronic sector and want to produce multilayer printed circuit boards using the MultiPress S hydraulic press. Knowledge regarding the safety and conduct in electric machine shops and electronic labs is a prerequisite.

NotationsThis chapter gives information on the notations used in this manual.

Bold print The following information is shown in bold print:• Switches, operating elements, labeled connections

e. g. power switches.



• Software elements:– Menu entries, e. g. Open > File...– Input boxes, selection boxes and lists, e. g. Tool Selection List– Buttons, e. g. Cancel– Windows, dialog boxes, e. g. input windows Tool Positions

Italic print Text in italic print and inverted commas identifies "Software Messages".Words in italic print identify Proper Names.

Symbols at the beginning of a sentence

• Lists start with a bullet in bold print.› Action commands are preceded by an arrow.

Indented paragraphs Indented paragraphs following an action describe events of the action that was just carried out.

Numbers Numbers in bold print in figures identify numberings (1) or dimensions (50 mm).Numbers in bold print written in parentheses (1) identify the number in the figure described.

Figures and tables are named in the margin and are numbered consecutively.

Symbols and signal words

Fig. 1:

WARNING

Danger to life or health.This symbol together with the signal word WARNING! indicates a dangerous situation in which in case of non-observance of the information there is a risk to life or health.

CAUTION

Risk of material damage.This symbol together with the signal word caution indicates a situation which in case of non-observance of the information can result in material damage.

Tip: The hand indicates tips for easier handling, material use and/or further processing.

For your own safety


For your own safety

Designated Use

MultiPress S The multilayer press MultiPress S is designed exclusively for the pressing of multilayer printed circuit boards for the electronic sector and may only be used for this purpose.The press may only be used in conjunction with the hydraulic pumps described here and must be considered together with them as a unit. The use of other pumps or other pressure means is not admissible.Any other use is inadmissible and will void any claims for liability and warranty against the LPKF AG. This also applies to pressing and/or drying of materials not designed for printed circuit production, e. g. electronic components, foodstuffs and textiles. Processing liquids or gaseous substances is inadmissible as well. Moreover, the MultiPress S may not be used for aligning, tools, workpieces or housing components.

Hydraulic pumps The automatic hydraulic pump or the hydraulic hand pump belonging to the machine, depending on the scope of delivery, is not designed for use with the MultiPress S.Any other use of the hydraulic pumps is inadmissible and will void any claims for liability and warranty against the LPKF AG. This applies in particular to operation on other hydraulically operated devices, e. g. lifting/driving and/or braking devices and presses.

Consumables/Materials Only materials declared for the production of multilayer printed circuit boards may be used. The data sheets and application information delivered with the materials must be observed. The use of other materials not taken under consideration can cause fires or impair the function of the machine and is inadmissible.

Conditions of use The press and hydraulic pumps have been designed for use in electric workshops and electronic labs. They may only be used in dry rooms. Operating them in environments subject to fire or explosion hazards is not admissible.

For your own safety


Liability for function and damage The press has been developed and built in accordance with state-of-the-art standards and recognized safety rules. Nevertheless, its use may constitute a risk to life and limb of the user or of third parties, or cause damage to the machine and to other material property.

Disclaimer The manufacturer/seller cannot be held liable for damage caused by the following actions/conditions:

• Improper handling, including any use not mentioned in this manual.• Operation in unsuitable environment• Installation and operation by insufficiently informed or unauthorized

persons• Non-observance of the legal safety requirements• Non-observance of this manual• Installation carried out incorrectly• Insufficient supply facilities• Missing/incomplete maintenance• Unauthorized technical modifications• Use of non-original spare parts and those not specifically designed

for the machine/device• Use of non-approved workpieces and/or materials

Safety regulations


Safety regulations

Read the following general safety information, before installing/starting up the machine. Also strictly observe the information for individual operating steps.

General safety instructions

• Use the machine only in accordance with its designated use.

• Have the machine operated, serviced and repaired by sufficiently qualified and authorized personnel only.

• Make sure that the operating manual was read and understood, before the machine is used.

• Before switching on the machine and during operation, make sure that nobody can be put at risk by the running machine!

• Use the machine only in perfect condition Prior to each use, perform a visual inspection. Look out in particular for damaged cables and hoses.

• When damage or malfunctions are observed, put the device immediately at standstill. Have any malfunctions rectified immediately. If malfunctions cannot be eliminated, put machine out of action and secure it against being switched on.

• Perform regular maintenance work, at least once a month, and make sure that the protective devices are in perfect working order.

• Do not deactivate the function of protective devices, do not bypass or bridge them.

• The safety signs and warnings attached to the machine must always be in place and readily legible.

• Observe the general and legal regulations for accident prevention and environmental protection.

• The necessary personal protective equipment for the operation, maintenance and repair work must be available at any time and used.

• Instruct the operating personnel regularly in all matters of work safety and environmental protection.

(Table page 1 of 2)

Safety regulations


• Risk of fire! Position machine such that at least 15 cm of free space are available on all sides. Do not deposit any objects on or under the machine. Make sure that no objects can fall into the machine. Deposit hot materials only on incombustible surfaces.

• Risk of burns! When inserting and removing the multilayer from the press, wear heat-resistant gloves.

• Health hazard! Hydraulic fluid can cause skin and eye injury. During maintenance and cleaning work, wear protective gloves.

• Environmental hazard! Hydraulic fluid is environmentally hazardous. Collect/absorb spilt hydraulic oil and dispose of it properly.

General safety instructions (continued)

(Table page 2 of 2)

For your notes

10 MultiPress S Operating manual 3.0 Issued: 3.6.2009

Table of contents


Table of contents

1. Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2. What is what? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.1 MultiPress S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.2 Automatic hydraulic pump . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.3 Hand pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.4 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3. Installation/Putting into operation . . . . . . . . . . . . . . . . . . . . 21

3.1 Building up the machine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.1.1 Placing the multilayer press . . . . . . . . . . . . . . . . . . . . 22

3.1.2 Installing the hydraulic pump. . . . . . . . . . . . . . . . . . . . . 24

3.2 Putting the machine into operation for the first time. . . . . . . . 25

3.2.1 Setting the language . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.2.2 Testing the safety devices. . . . . . . . . . . . . . . . . . . . . . . 26

4. What you should know . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.1 Structure of a multilayer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.2 Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.2.1 Material storage and preparation . . . . . . . . . . . . . . . . . 30

4.2.2 Fiducial bores . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.3 Assembly of a multilayer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5. Mode of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.1 Press profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.1.1 Heating and pressing stages. . . . . . . . . . . . . . . . . . . . . 33

5.1.2 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.1 Switching on the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.2 Operating the control using the selection keys . . . . . . . . . . . 37

6.2.1 Display boxes in the LCD display . . . . . . . . . . . . . . . . . 37

6.2.2 Selection keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.2.3 Selecting menu entries . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.3 Setting the basic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Table of contents


6.4 Selecting and editing press profiles. . . . . . . . . . . . . . . . . . . . 41

6.4.1 Selecting a press profile . . . . . . . . . . . . . . . . . . . . . . . . 41

6.4.2 Editing the press profile . . . . . . . . . . . . . . . . . . . . . . . . 42

6.5 Starting the program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

6.5.1 Starting the preheating stage . . . . . . . . . . . . . . . . . . . . 44

6.5.2 Starting the pressing stages . . . . . . . . . . . . . . . . . . . . . 45

6.5.3 Cooling the press system manually . . . . . . . . . . . . . . . 49

6.6 Loading the press system . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

6.6.1 Preparing the materials . . . . . . . . . . . . . . . . . . . . . . . . 50

6.6.2 Assembling the multilayer in the press mold . . . . . . . . 50

6.6.3 Inserting press mold into press system . . . . . . . . . . . . 52

6.6.4 Removing the multilayer . . . . . . . . . . . . . . . . . . . . . . . . 53

6.7 Operating the automatic hydraulic pump. . . . . . . . . . . . . . . . 53

6.8 Operating the hand pump . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

6.9 Switching the machine off . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

7. Operational faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

8. Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

8.1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

8.2 Checking and testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

8.2.1 Testing the protective devices . . . . . . . . . . . . . . . . . . . 61

8.3 Maintenance work/ overhauling. . . . . . . . . . . . . . . . . . . . . . . 62

8.3.1 Approved hydraulic oils . . . . . . . . . . . . . . . . . . . . . . . . 62

8.3.2 Maintaining the automatic hydraulic pump . . . . . . . . . . 62

8.3.3 Overhauling the automatic hydraulic pump . . . . . . . . . 63

8.3.4 Maintaining the hand pump . . . . . . . . . . . . . . . . . . . . . 64

9. Decommissioning, deinstallation and disposal . . . . . . . . 65

10. Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

11. EC Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . 69

12. Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

12.1 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

12.1.1 LPKF Multilayer Materials . . . . . . . . . . . . . . . . . . . . . . 71

12.1.2 Multilayer materials from other manufacturers . . . . . . 71

12.2 Individual profile settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Table of contents


13. Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

List of figures


List of figures

Fig. 1: MultiPress S Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Fig. 2: MultiPress S connections on the back . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Fig. 3: Automatic hydraulic pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Fig. 4: Hand pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Fig. 5: Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Fig. 6: LPKF multilayer set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Fig. 7: Removing shipping braces from pallet, inserting lifting ring . . . . . . . . . . . . . 22Fig. 8: Start message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Fig. 9: Structure of a multilayer comprising four layers . . . . . . . . . . . . . . . . . . . . . . 30Fig. 10: Bore spacings for fiducial bores . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Fig. 11: Multilayer in Pressform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Fig. 12: Pressing stage sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Fig. 13: Display boxes in the machine ready state . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Fig. 14: Function of the selection keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Fig. 15: Display in the Setup menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Fig. 16: Display during the preheating stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Fig. 17: Display in the Setup menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Fig. 18: Display during the pressing stages (with automatic hydraulic pump) . . . . . . 46Fig. 19: Display during the cooling stage (with automatic hydraulic pump) . . . . . . . . 46Fig. 20: Display during the pressing stages (with hand pump) . . . . . . . . . . . . . . . . . 47Fig. 21: Display during the cooling stage (with hand pump) . . . . . . . . . . . . . . . . . . . 47Fig. 22: Display during the cooling stage (with automatic hydraulic pump) . . . . . . . . 49Fig. 23: Display during the cooling stage (with hand pump) . . . . . . . . . . . . . . . . . . . 49Fig. 24: Checking the oil level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Scope of delivery


1. Scope of delivery

Depending on equipment, the following parts are included in the scope of delivery.

• Multilayer press MultiPress S • Automatic hydraulic pump

or: Hand pump

• Press mold (2-part, aluminum)• 2 pressing sheets (stainless steel)• 2 press cushions (fiber mats)• Sealing rings• Data cable for the automatic hydraulic pump• Dummy plug for data output socket• Operating manual „MultiPress S“ (this document)

What is what?


2. What is what?

2.1 MultiPress S

The multilayer press consists of the following operating units and connecting elements:

Fig. 1: MultiPress S Front View

1 Screw thread for lifting ring (with covering)

2 Control keys

3 LCD-Display4 Warning label: Hot surfaces5 Sliding door

1 2 3

4

5

What is what?


Fig. 2: MultiPress S connections on the back

1 Mains outlet socket for automatic hydraulic pump

2 Data cable connection for service labor3 Connection for data cable to automatic

hydraulic pump

4 Hydraulic hose5 230 V_fuse6 Mains connection7 Main switch

1 2 3

4

567

What is what?


2.2 Automatic hydraulic pump

WARNING

Risk of injury!Under high pressure standing leaky fittings can solve uncontrollably. Spouting hydraulic oil can cause eye and skin injuries. Switch off the MultiPress S before tightening/loosening the screw connetion of the hydraulic hose.

Fig. 3: Automatic hydraulic pump

1 Filler neck for hydraulic oil2 Connection for hydraulic hose

3 Mains cable4 Data cable with connecting socket

12

3

4

What is what?


2.3 Hand pump

WARNING

Risk of injury!Under high pressure standing leaky fittings can solve uncontrol-lably. Spouting hydraulic oil can cause eye and skin injuries. Switch off the MultiPress S and ensure that the manometer on the hand pump shows 0 bar (0 psi) before tightening/loosening the screw connetion of the hydraulic hose.

WARNING

Risk of crushing.During pumping the pumping lever is lowered down to the carrying handle. This may result in limbs being crushed between the lever and the carrying handle.During pumping, do not hold the hand pump on the carrying handle.

Fig. 4: Hand pump

1 Pump lever2 Carrying handle3 Manometer

4 Threaded connection for hydraulic hose5 Handwheel for pressure relief valve6 Screw cap for oil tank

1 2 3

45

6

What is what?


2.4 Accessories

Included in delivery

Consumables (not included in delivery)

For safe and reliable operation of the multi-press S we recommend the original LPKF base materials and consumables. These are available as economical multilayer sets or in single packing for different applications.

Disclaimer LPKF will not be responsible for damage and malfunction caused by the use of other materials/consumables.

Fig. 5: Accessories

1 Lower press mold2 Upper press mold3 Press cushion (gray fibre)

4 Sealing rings5 Data cable for optional pump6 Dummy plug

7 Mains cable8 Lifting ring

1 2 3

56 478

Fig. 6: LPKF multilayer set

1 Laminate Multilayer 0/5 µm according to appliance with or without protection foil

2 Prepreg (yellow)

3 Press cardboard (blue)4 Core material FR4 18/18 µm5 Sealing rings

A) press cushions - included in delivery

1 A 2 3 4 5

Installation/Putting into operation


3. Installation/Putting into operation

Read this chapter and observe the safety instructions before installing the MultiPress S and putting it into operation. This is the only way to guarantee the correct functioning and safe operation of the MultiPress S.

Ambient conditions Observe the following installation and ambient conditions (see also Chapter 10‚ "Technical Data", on page 67).

• Operate the machine in dry rooms only. • Protect machine from splash water.• Protect the 230 V mains power supply with a C 16 A fuse.• Install machine only on a working surface of at least 250 kg (441 lbs).• Ensure at least 15 cm (38") of free space on all sides of the press.

Required tools and materials

• Material for supporting the press during the dismounting of the shipping braces, e. g. three pieces of squared timber (15 cm x 15 cm x 60 cm)

• To position the press on the benchtop, a mobile crane or a lifting device having a minimum carrying capacity of 250 kg is required.

3.1 Building up the machine

The machine is secured on the pallet with shipping braces and is delivered in several individual parts. Keep all packaging materials and reuse them the next time the machine is transported.

Tip: If no mobile crane is available, we recommend the use of a mobile work table, which can be placed under the lifted MultiPress S.



3.1.1 Placing the multilayer press

WARNING

Personal injury caused by excessive physical stress.The MultiPress S weighs 170 kg (375 lbs). Lifting it manually can overstress the spinal column and cause permanent damage.For the installation of the MultiPress S, use a crane or a lifting device. Observe the maximum allowed loads.

WARNING

Danger caused by suspended loads.The lifted press may fall down and cause serious injury.When dismounting the shipping braces, protect the press against falling down.

CAUTION

Risk of material damage.The high weight of the press can result in damage when handled improperly.Do not tilt or knock the press nor subject it to excessive shaking.

Fig. 7: Removing shipping braces from pallet, inserting lifting ring

1 Removing the screws 2 Screwing in the lifting ring

1



› Remove the bolted connections between steel bracket and pallet (1).› Remove the rubber cover on the top of the MultiPress S and screw in

the delivered lifting ring by hand as far as it will go (2).› Lift the MultiPress S by means of a (mobile) crane or a lifting device

from the pallet.

Removing the shipping brace

The steel bracket at the bottom of the press serves as shipping brace. It must be removed from the bottom side, before placing the press at the place of use.

› Secure the press such that it cannot fall down. For example, place it on sufficiently stable, horizontal squared timbers (15 cm x 15 cm x 60 cm). Make sure that the press stands on all six rubber legs.

› Remove the screws that fasten the steel bracket from below to the bottom plate of the press.

› Lift the press by crane and position it on the work table.› Align the adjustable legs of the MultiPress S such that the machine is

level and the weight is distributed on all legs.› Remove the lifting ring from the MultiPress S and close the threaded

opening with the rubber cover.

WARNING

Risk of burns.The screwed in lifting ring becomes very hot during operation of the MultiPress S and can cause burns.Before putting the MultiPress S into operation, ensure that the lifting ring is removed and the rubber covering is put on the screw thread.



3.1.2 Installing the hydraulic pump

Depending on equipment, the MultiPress S is delivered with an automatic hydraulic pump or with a hand pump.

Installing the automatic hydraulic pump

› Position the automatic hydraulic pump such that the hydraulic hose and cables can be laid without producing kinks and causing a risk of stumbling.

› Connect the hydraulic hose of the MultiPress S to the connection for the hydraulic hose on the automatic hydraulic pump.

› Secure the connection by tightening the spigot nut by hand.› Connect the automatic hydraulic pump to the MultiPress S using the

data cable delivered with the MultiPress S.› Plug the IEC non-heating appliance plug of the pump into the mains

outlet socket of the MultiPress S.

Installing the hand pump

› Make sure that the pressure relief valve (see "Hand pump" on page 19) is closed. To do so, rotate the handwheel clockwise as far as it will go and tighten it by hand.

› Position the hand pump next to the MultiPress S. Make sure that the hydraulic hose can be laid without producing kinks and causing a risk of stumbling.

› Insert the hydraulic hose of the MultiPress S into the hydraulic pump outlet of the pump and secure the connection by tightening the spigot nut by hand.

› Plug the dummy plug into the data output socket of the MultiPress S.



3.2 Putting the machine into operation for the first time

In order to guarantee the safe operation of all machine components, first the basic functions must be set, and the safety devices must be tested.

› Plug the mains connecting line of the MultiPress S into a grounded mains 230 V socket protected with a 16 A fuse.

› Switch the main switch on the rear of the MultiPress S to the position I.The display lights up and shows the following message:

WARNING

Risk of burns.The screwed in lifting ring becomes very hot during operation of the MultiPress S and can cause burns.Before putting the MultiPress S into operation, ensure that the lif-ting ring is removed and the rubber covering is put on the screw thread.

Fig. 8: Start messageHaup t menü LPKF Se t

P r o f i l eSe t up ENT

20 °C 20 °C



3.2.1 Setting the language

To show display messages in a different language, proceed as follows:

› Select the menu item Setup using the selection keys.

› Press the ENT keyAt top left, "Setup" is displayed.

› Select the menu item Sprache using the selection keys.

› Press the ENT key.In the top left display box, "Sprache" is displayed.

› Select the desired language using the selection keys.

› Press the ENT key.The display is shown in the selected language.

3.2.2 Testing the safety devices

In order to guarantee the safe operation of the MultiPress S, during commissioning and regularly after one month, the safety devices must be tested for their function. Information on the menu guidance can be found in Chapter 6‚ "Operation", on page 37.

Testing program interruptions opening the sliding door

The programs may only be started with the sliding door closed.

› Open the sliding door› In the main menu, select the entry Start.

› Press the ENT key."start" appears in the menu box, and the entry Preheating is preselected.



› Press the ENT key.An acoustic signal sounds, and the LCD display reports "flap open". If the program starts despite open sliding door, contact the LPKF Support.

› To cancel the program and finish the test, press the ESC key.

Testing the pressure limit of the hand pump

To protect the mechanical components from overload, not more than 300 bar (4350 psi) of pressure may be built up. This is what the pressure limiting valve integrated in the hand pump is for.

› Make sure that the pressure relief valve (see fig. 4 on page 19) is closed. To do so, rotate the handwheel clockwise as far as it will go and tighten it by hand.

› Pump using the lever until the manometer shows 300 bar (4350 psi).› Keep pumping with the lever.

The displayed pressure must not rise beyond 300 bar (4350 psi).

› If the displayed pressure rises beyond 300 bar (4350 psi), contact the LPKF Support.

› Rotate the handwheel counterclockwise, to lower the hydraulic pressure and finish the test.

For your notes


What you should know


4. What you should know

This chapter gives you general information on the structure of a multilayer and the materials required for constructing it. In addition, you will learn about the individual stages of the press process, which will allow you to configure later on special press profiles for different applications and materials.

4.1 Structure of a multilayer

In order to produce a multilayer as thin as possible, we recommend the use of the following LPKF materials.

Inner layers Multilayer comprising four layers: Base material FR4 18/18 µm, 1.0 mm (40 mil) thick, coated on both sides.Multilayer comprising six and eight layers: Base material 104 ML 18/18 µm, 0.36 (14 mil) thick, coated on both sides.

Outer layers: For galvanic through hole conductivity: Laminate 104 ML, 5/0 µm, 0.2 mm thick, coated on one side, including protective film.For chemical free through hole conductivity with LPKF ProConduct: Laminate 104 ML, 0/18 µm, 0.2 mm thick, coated on one side, including protective film.

Composite material Prepreg (pre-impregnated, insulating fiber material), 0,1 mm (4 mil) thick.Depending on application and further processing, it may be necessary to mill and drill the materials before and/or after the press process. Depending on layout, one or two layers of prepreg may be required between the individual layers (see chapter 6.6.2‚ "Assembling the multilayer in the press mold", on page 50).

Tip: Detailed information on special applications, materials tested by LPKF and tips for optimum processing can be obtained from the LPKF Support.



4.2 Materials

We recommend the use of the LPKF multilayer kits. They contain all materials required for the pressing of a multilayer, including the consumables required for the press process.

4.2.1 Material storage and preparation

Given the large number of multilayer materials available on the market, we can only give general information on the material storage and application. In order to obtain optimum results, you should observe the following measures.

• Read the data sheets on the materials and application information.• Store the materials in a cool and dry place.• Store the materials in horizontal position, in order to guratantee their

dimensions stability and exclude distortion.

Fig. 9: Structure of a multilayer comprising four layers

1x/2x Prepreg

1x/2x Prepreg

Core material

Laminate 104 ML

Laminate 104 ML (unprocessed)

(double-sided processin

(unprocessed)

WARNING

Risk of fire caused by using non-approved materials.The high temperatures during the press process can set unsuitable materials in the press on fire.Use only materials approved for multilayers and observe the application information in the data sheets.



• Observe the use-by dates.• Prior to processing, store the materials at room temperature for at

least 24 h.• Prepare the materials according to the manufacturer's data (drilling

fiducials, cleaning, heat treatment, cutting to size, if required, observing the fiber direction).

4.2.2 Fiducial bores

In order to be able to insert base materials and laminates into the press mold, they must be provided with long holes (3.0 mm x 5.0 mm). .

4.3 Assembly of a multilayer

The multilayer materials must be assembled for the press process in the press mold developed especially for the MultiPress S. The press mold consists of the two aluminum parts with dowel pins. Press sheets and cushions guarantee an optimum pressure distribution in the press mold.

Tip: If the individual layers are produced using a circuit board plotter, the bore data can be integrated in the printed circuit board layout or made available as independent file.

Fig. 10: Bore spacings for fiducial bores



Fig. 11: Multilayer in Pressform

1 Press mold (upper part)2 Press cushion3 Press sheet4 Laminate

(Laminate on upper side)

5 Prepreg (1 or 2 layers)6 Core material7 Sealing rings (1-/2 rings8 )Prepreg (1 or 2 layers)

9 Sealing rings (1-/2 rings10 Laminate

(Laminate on lower side)11 Press sheet

12 Press cushion13 Pressmold (lower part)14 Passhole pins in press

mold

Tipp: In order to avoid skin fat deposit and dust on the materials, you should work with fluff-free gloves.

1

23

4

5

6

78

9

10

11

14

12

13

Mode of operation


5. Mode of operation

The press process is executed via menu-controlled programs. During a program run, the process goes through various heating and pressing stages, which are defined as press profiles. Acoustic signals and display messages announce the various pressing stages. The following programs (press profiles) are available:

• LPKF Set containing a permanently configured press profile for pressing multilayers comprising four, six and eight layers using LPKF standard materials in standard size.

• Profile1 to Profile6 containing freely configurable press profiles for special applications, materials and layout sizes.

In the MultiPress S with automatic hydraulic pump, the heating and pressing stages are carried out automatically. In the MultiPress S containing a hand pump, the pressure must be built up before each pressing stage and controlled and tracked during the entire press process. Display messages and acoustic signals indicated required manual interventions, e. g. for inserting the material, and give information on the stage change during the press process. Note: After inserting the multilayer into the press, the program sequence must not be interrupted, since otherwise the pressing quality cannot be guaranteed. Interrupt a pressing in case of an emergency only.

5.1 Press profiles

Press profiles contain the data for temperature, pressure, press times and material size required for a press process. A press process always takes place in several stages of different lengths of duration depending on the press profile. In these stages, different temperatures and pressures are established.

5.1.1 Heating and pressing stages

Operating the MultiPress S with automatic hydraulic pump, the stages are carried out automatically after inserting the material. In the MultiPress S containing a hand pump, the pressure required for each stage must be built up manually and controlled and tracked during the stage sequence. This is true in particular of the beginning of the main pressing stage and during the entire cooling stage.

Mode of operation


Preheating stage (1) In the preheating stage, the press is heated up in the absence of a multilayer to the temperature specified in the press profile.To avoid temperature losses and quickly reach the preheating temperature, for the MultiPress S with automatic hydraulic pump, first the press jaws are moved toward each other. In the MultiPress S containing a hand pump, a pressure of 10 bar should be built up to this end. After the preheating temperature has been reached, the multilayer assembled in the press mold must be pushed into the press. Note: The preheating temperature should be set higher than the main pressing temperature, since the temperature clearly drops when the press mold is inserted.

Prepressing stage (2) The prepressing stage must be started manually. It is required so as to allow air bubbles trapped between the layers during the increase in temperature to escape.Note: The prepressing time depends on the prepreg and should be at least 1 minute, to allow the adhesive to melt uniformly.

Main pressing stage (3) In the main pressing stage, the actual pressing of the layers constituting the multilayer takes place. Temperature and pressure must remain constant over the entire main pressing stage.

Cooling stage (4) During the cooling stage, the temperature is slowly lowered to ambient temperature. To avoid air inclusions in the still soft prepreg adhesive, it is absolutely necessary to keep the pressure constant.Note: The dropping temperature causes the material to contract, so that the pressure must be adjusted accordingly. This is why for the MultiPress S containing a hand pump, the pressure must be checked by means of the manometer during the entire cooling stage and, if necessary, corrected by additional pumping.

Fig. 12: Pressing stage sequence

1 Preheating stage2 Prepressing stage3 Main pressing stage

4 Cooling stage5 Curing stage

1 2 3 4

Temperature: Pressure:Time

5

Mode of operation


Curing stage (5) After its removal, the multilayer must rest at room temperature for at least 16 h, to allow the adhesive to cure completely. Note: An incompletely cured adhesive can smear the inner layers during drilling, thus no longer guaranteeing proper through-hole plating.

5.1.2 Configuration

The MultiPress S is equipped with a permanently configured LPKF press profile and six freely configurable profiles.

LPKF Set The press profile LPKF Set can be used for standard multilayers comprising 4,6 and 8 layers of layout 200 x 275 mm (7.87“ x 10.83“). To guarantee optimum processing at the parameters listed in table 1, the base material must have a size of 305 x 229 mm (12" x 9").

Variable profiles The press profiles available for individual configuration Profile 1 – Profile 6 have been preset to the parameters listed in table 1. In this way, depending on the requirements, only few changes must be made.

Tab. 1: Preset pressing parameters

Tip: Write down the parameters that you have changed. The Appendix contains a table in which you can enter the parameters required for your applications.

Parameters LPKF 1 Profile 1 – Profile 8

Preheating temperature 250 °C 250 °C

Prepressing temperature 180 °C 150 °C

Main pressing temperature 180 °C 180 °C

Prepressing time 10 min 10 min

Main pressing time 60 min 30 min

Prepressing force 80 N/cm² 80 N/cm²

Main pressing force 150 N/cm² 100 N/cm²

Width 305 mm 305 mm

Height 229 mm 229 mm

For your notes


Operation


6. Operation

6.1 Switching on the machine

To build up sufficient pressure and to avoid oil loss, before every usage of the machine the hydraulic connection on the pump must be checked for adequate fastness.

› Make sure, that the coupling nut on the hydraulic connection of the pump is fastened hand sturdy

› Switch the main switch on the rear of the MultiPress S to the position I.Note: The automatic hydraulic pump is supplied with power via the MultiPress S and is switched on and off together with it.The display will show the main menu with the press profile selected last.

6.2 Operating the control using the selection keys

The press profiles are selected and programmed by means of the selection keys on the menu-controlled LCD display.

6.2.1 Display boxes in the LCD display

Depending on the operational status, the display is divided into different boxes. After switching on, the main menu showing the selection options, the press profile selected last and the temperature at the upper and lower press jaw is displayed.

Operation


Information on the display during a press process can be found in Chapter 6.5‚ "Starting the program", on page 43.

6.2.2 Selection keys

Use the selection keys to select and confirm menu items.

› Press the Up selection key, to move the selection one step upwards.

› Press the Down selection key, to move the selection one step downwards.

› Press the ESC key, to return to the previous selection or to cancel a program.

› Press the ENT key, to confirm the menu selection.

Fig. 13: Display boxes in the machine ready state

1 Menu box2 Profile box3 Selection box

4 Current temperature lower press jaw

5 Selection list

6 Current temperature upper press jaw7 Error description (only when error

occurs)8 Error code (only when error occurs)

me n u e LPKF s e tS e t u ps t a r t ENT

2 0 ° C 2 0 ° C

1 2

3

456

(7)

(8)

Fig. 14: Function of the selection keys

ESC

Down

ENT

Up Selection key

Selection key

Operation


6.2.3 Selecting menu entries

After switching on, the press displays the main menu containing the entries Start, Setup, Profiles and Service.

Displaying the main menu

› If the main menu ("menue“) is not displayed, press the ESC key repeatedly until "menue" appears in the menu box.

Selecting a menu item

› Press the Up or Down key repeatedly until the desired menu item appears in the selection box.

› Press the ENT key, to confirm the menu selection.The selected menu item is displayed in the menu box. The selection box displays additional menu items, which again can be activated by selecting and confirming them.

Canceling the selection

› To cancel a menu selection and return to the selection menu, press the ESC key.

Operation


6.3 Setting the basic functions

To edit the basic functions, proceed as follows:

› In the main menu, select the entry Setup.

› Press the ENT key."Setup" appears in the menu box.

› Select the desired entry in the selection list and press the ENT key.The selection options are explained in Table 2 on page 40.

Tab. 2: Setup menu

Fig. 15: Display in the Setup menu S e t u p LPKF s e t

L a n g u a g eESC p r e h e a t ? ENT2 0 ° C 2 0 ° C

Menu item Selection options Function/Explanation

Language German (Factory setting) Display in German

English Display in English

preheat? Off (Factory setting) Preheating stage can only be started manually.

On The preheating stage is started automatically with the profile selected last, after switching on the MultiPress S on the main switch. Activate this option only if you always use the same profile.

firmware Software version is displayed in the selection box

hours The number of previous operating hours is displayed in the selection box

(Table page 1 of 2)

Operation


6.4 Selecting and editing press profiles

To start a program or to change the parameters of a press profile, first the desired press profile must be selected.

6.4.1 Selecting a press profile

› In the main menu, select the entry Profile.

› Press the ENT key."profiles" appears in the menu box.

› Select the menu item Select and press the ENT key."select" appears in the menu box.

› Select the desired press profile and press the ENT key.The desired press profile is displayed in the profile box.

› Press the ESC key, to return to the Profiles menu.

fan temp. Temperature in °C Factory setting: 40°C

Change the digits using the selection keys and confirm by pressing the ENT key. After confirming the last digit, you are back in the Setup menu.

Active cooling stage (fan operating mode) is finished when the temperature on the press jaws has dropped to the fan temperature.Note: Do not set the fan temperature to a smaller value than the ambient temperature, since otherwise the cooling stage will not be finished automatically.

service Enter the 5-digit numeric code, confirming each digit by pressing ENT.

Test and calibration functions.

Changes not approved by LPKF can result in malfunctions and damage to the device.

They may only be carried out by authorized personnel.

Menu item Selection options Function/Explanation

(Table page 2 of 2)

Operation


6.4.2 Editing the press profile

Only the Profile 1 - Profile 6 press profiles can be edited. LPKF Set is designed especially for the production of multilayers comprising four to eight layers using LPKF base materials in the standard format and cannot be changed.The values of a press profile are changed as follows:

› Make sure that the desired profile is displayed in the profile box.› In the Profile menu, select the entry change.

› Press the ENT key."change" appears in the menu box.

› Select the desired entry and press the ENT key. For the explanation of the entries, please refer to Table 3 on page 43.The current value is shown in the selection box.

› Use the selection key, to change a digit.› Press the ENT key, to confirm the menu selection and to switch to

the next digit.After confirming the last digit, you are back in the Change menu.

Note: If the entered value is outside the in-factory limit, the message "input correction" will appear, after the last digit has been confirmed, and the allowed maximum or minimum value will be set. The correction message will go out after 20 seconds.

Operation


The following values can be changed in the press profiles:

Tab. 3: Menu Profiles > Change

6.5 Starting the program

A program is started using the press profile shown in the profile box (see "Selecting and editing press profiles" on page 41). Please note that the press profile selected last is automatically preselected, after switching on the MultiPress S.Note: Prior to pressing, the multilayer materials and consumables must be stored at room temperature for 24 hours, cleaned and heat-treated. Observe the information given in Chapter 6.6.1‚ "Preparing the materials", on page 50.

MultiPress S with hand pump:

Before starting a press program, observe the information on the operation of the hand pump (see chapter 6.8‚ "Operating the hand pump", on page 54) and familiarize yourself with its use.

Menu item Function/Explanation Unit Preset min. max.

prehe.temp Preheating temperature °C 250 30 250

prepre.temp Prepressing temperature °C 150 30 250

presstemp Main pressing temperature

°C 180 30 250

width Width of the multilayer mm 305 100 305

height Length of the multilayer mm 229 100 229

pp-force Prepressing force N/cm² 80 30 286

mp-force Main pressing force N/cm² 150 30 286

preptime Prepressing time min 10 1 60

presstime Main pressing time min 60 1 120

Tip: Use the Table 6, "Individual configuration of the press profiles", on page 72, to log the changed values.

Operation


6.5.1 Starting the preheating stage

The preheating stage can be switched on automatically when the MultiPress Sis switched on and/or started manually.

Bringing the press jaws together

In order to reach the target temperature as quickly as possible, the press jaws should be closed during the preheating state. This is done in the MultiPress S program-controlled by means of the automatic hydraulic pump.

› In the MultiPress S with hand pump: Pump repeatedly until the manometer shows a pressure of 10 bar (145 psi).

Starting the preheating stage automatically

› In the menu Setup > Preheating, select the entry On and press the ENT key.The preheating is started automatically when the MultiPress S is switched on. Please note that the press profile selected last will be used. (see table Tab. 2: „Setup menu“ on page 40).

Starting the preheating stage manually

› Make sure that the desired press profile is displayed in the profile box.

› In the main menu, select the entry Start.

› Press the ENT key."start" appears in the menu box.

› Select the entry Preheating and press the ENT key.The display shows the current data of the preheating state.

Fig. 16: Display during the preheating stage p r e h e a t LPKF S e t

2 5 0 ° C mu s t t emp .2 2 ° C u t emp e r a t u r e2 2 ° C l t emp e r a t u r e

Operation


Note: You can stop the preheating stage at any time by pressing the ESC key, for example in order to select a different press profile or restart the preheating stage at a later time. After the preheating temperature defined in the press profile (must temp.) has been reached, the Start menu is displayed, and the entry Pressing is preselected. A short acoustic signal, repeated at an interval of three seconds, indicates that the material should be inserted.

6.5.2 Starting the pressing stages

The prepressing stage must not be started until the preheating temperature has been reached. Once the preheating stage is complete, a repeated acoustic signal will sound, and in the Start menu the entry Pressing is preselected.

› Make sure that the desired press profile is displayed in the profile box.

› Position the press mold containing the multilayer in the press. (see chapter 6.6‚ "Loading the press system", on page 50)

Fig. 17: Display in the Setup menu s t a r t LPKF Se t

P r e s sESC f a n on ENT2 0 ° C 2 0 ° C

Operation


› Press the ENT key.The press process is started with the prepressing stage. Note that when using the MultiPress S with hand pump, the additional operating steps for pressure build-up described below have to be carried out. The display box shows the following values:

After the main pressing stage is complete, the cooling stage is started automatically, and the fan is switched on. The display reports "cool down" and shows the current temperatures at the upper and lower press jaws.

CAUTION

Material damage!If the press process is interrupted, this may result in air inclusions and material distortion in the multilayer.Interrupt the press process only in case of emergency.

Fig. 18: Display during the pressing stages (with automatic hydraulic pump)

1 Pressing stage2 Press profile used3 Material width

4 Material height5 Remaining time for this

stage in hours:min 6 Pressing time

7 Pressing force in N/cm² (with automatic hydraulic pump) or: Target pressure in bar (with hand pump)

8 Target/actual temperature in °C

1 2

3

4

56

(7)

(8)p r e p r e s s LPKF S e t2 5 0 / 2 0 ° C 3 0 5mm8 0 N / cm2 2 2 9mm6 0mi n t i me = 0 0 : 5 9

Fig. 19: Display during the cooling stage (with automatic hydraulic pump)

c o o l d own8 0 N / cm2u t emp e r a t u r e 1 7 5 ° Cl t emp e r a t u r e 1 7 5 ° C

Operation


Pressure build-up using the MultiPress S with hand pump:

In the MultiPress S with hand pump, the pressure must be built up manually at the beginning of each stage and corrected during the entire program sequence(see chapter 6.8‚ "Operating the hand pump", on page 54).

› As soon as the actual and target values appear, immediately start pumping until the target value on the display is shown on the manometer.

› In order to maintain the target pressure, correct the pressure during the entire pressing.

At the end of the prepressing stage, a repeated acoustic signal will sound indicating the beginning of the main pressing stage. In the pressing stage display box, "main press" is displayed.

› Keep pumping until the target pressure is shown on the manometer.› Keep controlling the pressure and correct it, if necessary, by

additional pumping.After the main pressing stage is complete, the cooling stage is started automatically, and the fan is switched on. During this, the target pressure is displayed, which must be maintained by additionally pumping by hand.

During the cooling stage, it is particularly important to keep the pressure at the target pressure level. Material-related, the pressure will drop particularly strongly at the beginning of the cooling stage, at which point it must be increased by additional pumping.

Fig. 20: Display during the pressing stages (with hand pump)

ma i n p r e s s LPKF S e t2 5 0 / 1 8 0 ° C 3 0 5mm1 4 7 b a r ma n u a l 2 2 9mm6 0mi n t i me = 0 0 : 5 9

Fig. 21: Display during the cooling stage (with hand pump) c o o l d own

1 4 7 b a r ma n u a lu t emp e r a t u r e 1 7 5 ° Cl t emp e r a t u r e 1 7 5 ° C

Operation


› Make sure that the pressure on the manometer always corresponds to the target pressure during the entire cooling stage. If necessary, correct it by additional pumping.The cooling stage is finished automatically upon reaching the preset fan temperature. A repeated acoustic signal will sound, and the message "finished" will appear.

› Observe the information regarding the removal of the multilayer (see chapter 6.6.4‚ "Removing the multilayer", on page 53).

Canceling/Quitting the program

A program in progress should only be stopped in case of emergency. If a press process is interrupted, no matter during which stage, this may result in air inclusions and material distortion in the multilayer. Thus, a correct pressing can no longer be guaranteed. To end a program prematurely, proceed as follows:

› Press the ESC key.This immediately stops the program. The main menu is displayed, and "preheat" is selected in the selection box.


Operation


6.5.3 Cooling the press system manually

In order to cool the press system quickly to the ambient temperature, for example after a program cancel, the fan can be switched on manually.

› In the main menu, select the entry Start.

› Press the ENT key."start" appears in the menu box.

› Select the entry Fan on and press the ENT key.Depending on equipment, the following information is displayed:

The cooling stage is finished automatically upon reaching the preset fan temperature. A repeated acoustic signal will sound, and the message "finished" will appear.


Fig. 22: Display during the cooling stage (with automatic hydraulic pump)

Fig. 23: Display during the cooling stage (with hand pump)

c oo l d own8 0 N / cm2u t emp e r a t u r e 1 7 5 ° Cl t emp e r a t u r e 1 7 5 ° C

Co o l d own1 4 7 b a r ma n u a lu t emp e r a t u r e 1 7 5 ° Cl t emp e r a t u r e 1 7 5 ° C

Operation


6.6 Loading the press system

To load the press system, the materials to be pressed must be prepared and assembled in the press mold.

6.6.1 Preparing the materials

The multilayer materials and consumables must be cleaned and heat-treated prior to processing. Follow the specific application information of the material manufacturer and observe the following instructions.

• Remove materials from the packaging material 24 hours before processing and store them horizontally at room temperature.

• If the base material and laminate do not yet have fiducials corresponding to the press mold, they must be drilled (see chapter 4.2.2‚ "Fiducial bores", on page 31).

• Clean the base materials and laminate with isopropanol or acetone.• Heat-treat the base materials and laminates before pressing at

120 °C for 30 minutes.• After the heat treatment, allow the materials to cool down for about

10 minutes and then assemble them quickly to the multilayer (see chapter 6.6.2‚ "Assembling the multilayer in the press mold", on page 50).

6.6.2 Assembling the multilayer in the press mold

While the press is being heated up, you have enough time to assemble the multilayer in the press mold. Depending on the application, material selection and layout of individual layers, different procedures/assemblies are necessary. The following instructions assume that base materials in the standard format are used.Note that the materials must be aligned on the fiducial pins, in order to ensure exact alignment and uniform pressure distribution.Further information on special applications and the use of other materials can be obtained from the LPKF Support.

Tip: In order to avoid skin fat deposit and dust on the materials, you should work with fluff-free gloves.

Tip: In order to avoid skin fat deposit and dust on the materials, you should work with fluff-free gloves.

Operation


› In order to remove any remaining adhesive residues and skin fat deposits, clean the parts of the mold (aluminum) and press sheets (stainless steel) with isopropanol or acetone.

› Place lower part of the press mold (including handle rail) on the working surface in such a way that the fiducial pins point upwards.

› Place a press cushion on the press mold.› Place a press sheet on the press cushion.› Place the bottom layer of the multilayer (laminate) with the copper-

plated side pointing downward on the press sheet.› Depending on the structure of the following copper layer, position

one or two prepreg layers on the laminate such that all around it has a distance of 15 mm from the laminate border:– 1 prepreg layer for less than 50 % of structured surface (rub-out)– 2 prepreg layers for more than 50 % of structured surface (rub-out)

Make sure that the prepreg layers have the same fiber direction.

› In accordance with the number prepreg layers, glue one or two sealing rings to the laminate around each fiducial pin. The sealing rings prevent the melt adhesive of the prepreg from adhering to the fiducial bores.

› Place core material milled on both sides on the multilayer.› Again place one or two prepreg layers on the top copper layer of the

base material. Ensure same fiber direction of the prepreg.› Again glue one or two sealing rings around each fiducial pin to the

base material.› Place laminate for top layer with the copper-plated side pointing

upward on the prepreg.› Place a press sheet on the laminate.› Place a press cushion on the press sheet.› Place upper part of the press mold on the press cushion such that the

angle rail engages in the recess of the lower part of the press mold.The press mold containing the materials to be pressed can be inserted into the press after the preheating stage. Observe the information given in Chapter 6.6.3‚ "Inserting press mold into press system", on page 52.

Operation


6.6.3 Inserting press mold into press system

After the preheating stage, the MultiPress S will prompt you by an acoustic signal and a display message to insert the multilayer.

› Slide the front flap all the way downward.› Place the press mold containing the materials to be pressed between

two blue press cardboards (see "Accessories" on page 20), to avoid scratches to the press jaws by dust and material residues.

› Slide the press mold together with the press cardboards engaging in the handle rail as far as it will go into the press system. Position the press mold at the center between the press jaws and make sure that the press cardboards do not shift out of place.

› Slide the front flap all the way upward.The prepressing stage can now be started (see "Starting the pressing stages" on page 45).

WARNING

Risk of burns.The press system including the press jaws is very hot and can result in burns.Wear heat-resistant gloves.

CAUTION

Risk of fire!Non heat resistant press cardboard can inflame during operation and set the machine on fire.Use original LPKF press cardboard.

Tip: The press cardboards can be used up to five times. When reusing the cardboards, make sure that the cardboard have a flat surface and no inclusion of material (dust, chips, etc.) Discoloured press cardboards must be replaced by unused.

Operation


6.6.4 Removing the multilayer

The multilayer should not be removed from the press system until the cooling is finished. If removed prematurely, this can result in air inclusions and material distortion. This is why the press process must not be interrupted and continued at a later time. Remove the multilayer only in case of emergency before the cooling stage is complete.

› Make sure that the program run is finished.A triple acoustic signal will sound, and the message "finished" will appear.

› For the MultiPress S with hand pump: Rotate the handwheel counter clockwise, in order to open the pressure relief valve and releasing the press jaws.

› Open the sliding door.

› Pull the press mold and press cardboards out of the press system.› Deposit the press mold on a heat-resistant support.› Take the multilayer out of the press mold and store it at room

temperature in horizontal position for at least 16 hours, to allow the adhesive to cure completely.

6.7 Operating the automatic hydraulic pump

The automatic hydraulic pump is controlled by the MultiPress S. Pressure build-up and control have been integrated in the program sequences and are carried out fully automatically.

WARNING

Risk of burnsThe press mold and press system get very hot during the pressing stages and can result in burns.Wear heat-resistant gloves.

Operation


6.8 Operating the hand pump

Building up the pressure

› To close the pressure relief valve, rotate the handwheel clockwise as far as it will go.

› Pump using the lever until the manometer shows the desired pressure.

Lowering the pressure

› To open the pressure relief valve, rotate the handwheel slowly counter clockwise.The manometer indicates the dropping pressure.

› Close the pressure relief valve when the desired pressure is displayed.

WARNING

Risk of rebounding!Under certain circumstances, the pump handle may rebound and cause bodily injury.While pumping, place your body laterally to the pump and do not bend over the pump.

WARNING

Risk of crushing!During pumping and reduction of the pressure, the pumping lever is lowered down to the carrying handle. This may result in the hand and fingers becoming crushed.During pumping, do not hold the hand pump on the carrying handle.

CAUTION

Material overstress through lever action!The pump lever is only approved for manual pumps. Higher forces through lever extensions and/or additional pump drives can overstress the material.Do not extend the pump lever. Do not use additional pump drives.

To save energy, execute short pump strokes. The greatest pumping effect is achieved in the lower lever range.

Operation


6.9 Switching the machine off

Before switching the machine off at the main switch, make sure that the system is depressurized.

› Finish any program that may still be running (see "Canceling/Quitting the program" on page 48).For the MultiPress S with automatic hydraulic pump, the pressure is released program-controlled.

› For the MultiPress S with hand pump:– Make sure that the manometer shows 0 bar/psi.

It may be necessary to let down the pressure by rotating the handwheel on the pump counter clockwise.

– To close the pressure relief valve, rotate the handwheel clockwise as far as it will go.

› Switch the main switch on the rear of the MultiPress S to the position O.The display expires.

For your notes


Operational faults


7. Operational faults

Troubleshooting

Tab. 4: Error messages

WARNING

Risk of personal injury caused by incorrect repairs.Technical modifications can cause electric shocks, burns and crushings.Have repairs carried out by personnel authorized by LPKF only.

Error code Message Explanation Error elimination

H1 upper heaterfault

Upper press jaw is not heated

Contact LPKF Support

H2 lower heaterfault

Lower press jaw is not heated


H3 heaterfault

Press jaws are not heated Contact LPKF Support

K1 flap open Front flap is open Push front flap upwards

C1 Hydraulic hasno connection

No data is transmitted between press and automatic hydraulic pump

Check wiring between MultiPress S and automatic hydraulic pump.For MultiPress S with hand pump, check whether the dummy plug has a tight fit on the data output of the press.

U1 24V fault Contact LPKF Support

U2 5V analog fault Contact LPKF Support

M1 Hydraulic pumpduty time


P1 upper temp.intermitted


P2 lower temp.intermitted


P3 upper temp.short circui


P4 lower temp.short circui


For your notes


Care and Maintenance


8. Care and Maintenance

8.1 Cleaning

Cleaning the surfaces

If required, clean the housing surface with a dry, antistatic cloth. Do not use cleaning agents.

Cleaning the press mold and the press sheets

› To remove any adhesive residues, dust and skin fat deposit that may be present, clean the press mold and the press sheets prior to each use with isopropanol or acetone.

8.2 Checking and testing

The MultiPress S and all its components must be checked for any damage and/or oil leakage prior each use.

Carrying out a visual check

CAUTION

Risk of fire damage and/or short circuits.Dirt particles and objects entering the MultiPress S can cause fire damage and/or short circuits.When cleaning, make sure that no objects or dirt particles enter the machine.

WARNING

Risk of injury!Under high pressure standing leaky fittings can solve uncontrollably. Spouting hydraulic oil can cause eye and skin injuries. Switch off the MultiPress S before tightening/loosening the screw connetion of the hydraulic hose.



› Prior to each use, check the machine, the hydraulik pump, all outer wiring and the hydraulic hose for visible damage. Pay particular attention to oil loss at the hydraulic connections and cracked and rub spots on the wiring.

› If any damage is recognized: Make sure that the machine can not be used until the damage is repaired.

Checking the oil-level

› Finish any running programm (see "Canceling/Quitting the program" on page 48)

› Switch the main switch on the back of the MultiPress S to position 0.› Wait at least about five minutes to let the oil set.› Srew off the lid from the filler neck of the automatic hydraulic pump

and pull out the measuring stick.› Check the oil level on the basis of the markers on the measuring

stick:

Fig. 24: Checking the oil level

1 "Minimum" marker2 "Maximum" marker3 Oil measuring stick

4 Lid of the oil filler neck5 Acceptable oil level (between markers)

31 2 4

5

Result What to do?

Oil level is in between the markers, oil level is acceptable.

Insert measuring stick into filler neck.Fasten the lid by hand.

Oil level is below "Minimum" marker, too less oil.

Refill hydraulic oil nachfüllen (see "Changing/refilling hydraulic oil" on page 62) Caution! Use approved oils only.

Oil level is above "Maximum" marker, too much oil.

Drain excessive oil.



8.2.1 Testing the protective devices

In order to guarantee the safety and function of the machine, the protective devices must be checked regularly, at least once a month, for correct functioning.

Testing the program abortion when opening the sliding door

The programs may only be started with the sliding door closed.

› Slide the sliding door downward.› Select a press profile and start the preheating stage.

An acoustic signal sounds, and the LCD display reports "Flap open". If the program starts despite open sliding door, contact the LPKF Support.

› To cancel the program and finish the test, press the ESC key.

Testing the pressure limitation of the hand pump

To protect the mechanical components from overload, not more than 300 bar (4350 psi) of pressure may be built up. This is what the pressure limiting valve integrated in the hand pump is for.

› Make sure that the pressure relief valve (see fig. 4 on page 19) is closed. To do so, rotate the handwheel clockwise as far as it will to and tighten it by hand.

› Keep pumping until the manometer shows 300 bar (4350 psi).› Keep pumping.

The displayed pressure must not rise beyond 300 bar (4350 psi).

› If the displayed pressure rises beyond 300 bar (4350 psi), contact the LPKF support.

› To lower the pressure, rotate the handwheel counter clockwise.



8.3 Maintenance work/ overhauling

The automatic hydraulic pump/the hand pump must be maintained/serviced periodically. Carry out the maintenance within the specified intervalls. Record the maintenance work with the date, type of activity and signature by the responsible employee.

8.3.1 Approved hydraulic oils

The following types oil type can be used for the hydraulic pumps:

8.3.2 Maintaining the automatic hydraulic pump

Changing/refilling hydraulic oil

The hydraulic oil must be changed after 5 000 hours of operation.To balance any oil loss due to operation, the oil level must be checked prior to each start of operation of the MultiPress S. If the oil level is too less. you must refill hydraulic oil.

Manufactorer Viskosity (ISO): 46 cST/40°DIN 51525: H-L/H-LP 46

ARAL ARAL Vitam GF 46ARAL Vitam DE 46

BP BP ENERGOL HLP 46BP ENERGOL HLP-D 46

ESSO ESSO NUTO H 68

Mobil MOBIL D.T.E. 68MOBIL Hydr. Öl H-LPD 46

OEST OEST Hydr. Öl H-LP 46OEST Hydr. Öl 46 DD

Shell Shell Tellus Oel 46Shell Hydrol 46



› To deinstall the automatic hydraulic pump:– Ensure that the MultiPress S is switched off.– Remove the mains cable and the data cable from the automatic

hydraulic pump.– Unsrew the coupling nut of the hydraulic hose and remove the

hose from the pump.

› Unscrew the lid of the filler neck and pull of the measuring stick.› To drain the oil from the automatic hydraulic pump:

– By tilting the device, pour the oil into a oil catchment tray or container.

– To meet environmental standards, fill the used oil into a container adequate for disposal.

› Fill new hydraulic oil in little amounts into the filler neck of the automatic hydraulic pump. Keep in mind to use only an approved type of oil (see chapter 8.3.1‚ "Approved hydraulic oils", on page 62).Note: The tank of the automaitc hydraulic pump has about 1.2 l volume.

› Make sure that the oil level is in between the markers of the measu-ring stick (see "Checking the oil-level" on page 60).

› Close the filler neck srewing on the lid and fasten it by hand.

Now you can reinstall the automatic hydraulic pump to the MultiPress S press (see "Installing the automatic hydraulic pump" on page 24).

8.3.3 Overhauling the automatic hydraulic pump

To ensure the pressure build-up for the MultiPress S, the automatic hydraulic pump must be overhauled or replaced after 10 000 hours of operating. The ovrhauling must only be carried out through service personell trained by the manufacturer of the pump. Contact the LPKF Support for overhauling the automatic hydraulic pump.



8.3.4 Maintaining the hand pump

For the first time, the oil should be changed after six months and then once a year. For the oil change procedure and the use of the correct hydraulic oil, contact the LPKF Support.

Topping up with hydraulic oil

› Make sure that the manometer shows 0 bar/psi. It may be necessary to let down the pressure by rotating the handwheel on the pump counter clockwise.

› To close the pressure relief valve, rotate the handwheel clockwise as far as it will go.

› Unscrew the spigot nut of the hydraulic hose at the connecting pipe of the hand pump and pull off the hydraulic hose.

› Remove the screw cap of the oil tank.› To drain the oil from the hand pump:

– By tilting the device, pour the oil into a oil catchment tray or container.

– To meet environmental standards, fill the used oil into a container adequate for disposal.

› Fill the oil tank with an approved type of oil up to about 2.0-2.5 cm below the top tank rim. (see chapter 8.3.1‚ "Approved hydraulic oils", on page 62)

› Open the pressure relief valve and actuate the pump lever several times, to ventilate the oil tank.

› After ventilation, check the oil level again.› Screw on the oil tank cap and tighten it by hand.

The hand pump can be installed again and put into operation (see chapter 3‚ "Installation/Putting into operation", on page 21).

Decommissioning, deinstallation and disposal


9. Decommissioning, deinstallation and disposal

To decommission and deinstall the machine, proceed as follows:

Decommissioning the machine

› Switch the main switch to the position 0.› For the MultiPress S with hand pump:

– Make sure that the pump is depressurized. The manometer shows 0 bar/psi.

– To let down the pressure, if required, rotate the handwheel counter clockwise.

– Rotate the handwheel clockwise as far as it will go.

› Pull the plug from the mains socket.

Deinstalling the machine

› Remove the cable between press and automatic hydraulic pump.› Make sure that the screw cap for the oil tank of the hydraulic pump

has been tightened.

› Unscrew the spigot nut of the hydraulic hose at the hand pump/automatic hydraulic pump and pull off the hydraulic hose.

WARNING

Risk of eye and skin injuries!When disconnecting the hydraulic hose, oil can spurt and damage eyes and skin.When unscrewing the spigot nut, wear safety goggles and gloves.

CAUTION

Environmental hazard!When pulling off the hydraulic hose, oil can escape and damage the environment.Absorb spilt hydraulic oil and dispose of it properly.

Decommissioning, deinstallation and disposal


Disposal

Observe the country-specific and local regulations for disposal of waste electrical/electronic equipment or contact the LPKF Support.Prior to disposal, hydraulic oils must be drained and then disposed of properly. Information on the disposal of the hydraulic oils can be obtained from approved disposal firms and/or the authorities responsible for this.

Technical Data


10. Technical Data

MultiPress S (without hydraulic pump)

Dimensions (H x B x T): 600 mm x 620 mm x 530 mm (23.6” x 24.4” x 20.9”)

Weight: 170 kg (375 lbs)

Operating voltage: 230 V 50/60 Hz

Power consumption: 2.3 kW

Admissible ambient temp.: 18 °C – 25 °C (65 °F – 77 °F)

Acoustic emission (with pump) < 70 db(A)

Pressing area: 229 mm x 305 mm (8.2” x 11.2”)

Layout size: 100 mm x 100 mm – 200 mm x 275 mm (3.94“ x 3.94“ – 8.2” x 11.2”)

Prepressing force: 30 N/cm² – 286 N/cm²

Main pressing force: 30 N/cm² – 286 N/cm²

Preheating temperature: 30 °C – 250 °C (86 °F – 480 °F)

Prepressing temperature: 30 °C – 250 °C (86 °F – 480 °F)

Main pressing temperature: 30 °C – 250 °C (86 °F – 480 °F)

Prepressing time: 1 min – 60 min

Main pressing time: 1 min – 120 min

Number of compressible layers:

4 – 8

Hydraulic pumps

Automatic hydraulic pump Hand pump

Dimensions: 292 mm x 242 mm x 245 mm (11.5” x 9.5” x 9.7”)

557 mm x 97 mm x 139 mm 22” x 3.8” x 5.5”)

Operating voltage: 230 V 50/60 Hz –

Power supply: external control –

Power consumption: 0.3 kW Manually

Pressure limit: 300 bar (4350 psi) 300 bar (4350 psi)

Tank volume: 1.2 Liter 0.9 Liter

Hydraulic oil Based on mineral oil according to ISO standard 6743/4Viscosity class 46 cS 40DIN 51525 (H-L/H-LP 46)

Based on mineral oil according to ISO standard 6743/4Viscosity class 46 cS 40DIN 51525 (H-L/H-LP 46)

Technical Data


EC Declaration of conformity


11. EC Declaration of conformity

EC Declaration of Conformity in accordance with Machinery Directive 98/37/EC, Appendix II A

The manufacturer/seller

LPKF Laser & Electronics AG Osteriede 7 D-30827 Garbsen

hereby declares that the following product conforms to the provisions of the directive(s) identified above - including the modifications effective at the time of this declaration.

The following harmonized standards were applied:

• EN 349:1993 - Safety of machinery - Minimum gaps to avoid crushing of body parts

• EN 292-1:1991 - Safety of machinery - Basic terms, general principles for design - Part 1: Basic terminology, methods

• EN 292-2:1991+A1:1995 - Safety of machinery - Basic terms, general principles for design - Part 2: Technical principles and specifications

• EN 1050:1996 - Safety of machinery - Principles for risk assessment• EN 563:1994+AC:1994+A1:1999 – Safety of machinery -

Temperatures of touchable surfaces - Ergonomics data for establishing temperature limit values for hot surfaces (contains Corrigendum AC:1994 and Amendment A1:1999)

• EN 60204-1:1997 - Safety of machinery - Electrical equipment of machines - Part 1: General requirements

• EN 61000-3-2:2000 – Electromagnetic Compatibility (EMC) - Part 3-2: Limits – Limits for harmonic current emissions (Equipment input current up to 16 A per phase)

• EN 61000-6-2:2001 – Electromagnetic Compatibility (EMC) - Part 6 - Generic standards - Immunity for industrial environments

• EN 61000-6-3:2001 – Electromagnetic Compatibility (EMC) - Part 6-3: Generic standards - Emission standard for residential, commercial and light-industrial environments

Product designation: Hydraulic press

Series/type designation: MultiPress S

Product versions: – with automatic hydraulic pump– with hand pump

EC Declaration of conformity


The following national and international standards (or parts/clauses thereof) and specifications have been applied:

• EN55022 Class B – Radio interference voltage, Radio interference emission

• EN61000-4-3 – Interference immunity• EN61000-4-11 – AC voltage mains inputs and outputs

The following additional EU Directives were applied:

• EMC directive 89/336/EWG• Low Voltage Directive 2006/95/EWG

Town: GarbsenDate: 01.07.2008

Bernd Hackmann (Board chairman)

The declaration certifies that the directives have been complied with, but does not include any guarantee of properties. The safety instructions of the product documentation included in the delivery must be observed.

Appendix


12. Appendix

12.1 Materials

For the safe and reliable operation of the MultiPress S we recommend the use of LPKF multilayer materials.

12.1.1 LPKF Multilayer Materials

LPKF multilayer materials are highly suitable for the LPKF Set press profile, making all further programming unnecessary.The following LPKF multilayer materials are available:

Tab. 5: LPKF Multilayer Materials

12.1.2 Multilayer materials from other manufacturers

Observe the data sheets containing the application and storage information of the material manufacturer.

Material Designation ThicknessmmInch

Coatingµmmil

SizemmInch

Description

Laminate 104 ML 0.20.008

18/00.7/0

229 x 3059 x 12

single coated

Prepreg Typ 2125 0.10.004

275 x 20010.8 x 7.9

Base material FR4 18/18 10.04

18/180.7/0.7

229 x 3059 x 12

for 4-ply multilayers

104 ML 0.360.014

18/180.7/0.7

229 x 3059 x 12

for 6- and 8-ply multilayers

Consumables

Press cushion 229 x 3059 x 12

heatresistant special fibre (gray)

Press cardboard 229 x 3059 x 12

heatresistant special fibre (blue)

Appendix


12.2 Individual profile settings

Here you can notice your individual settings for the freely definable profiles 1 – 6.

Tab. 6: Individual configuration of the press profiles

Profile nameUse Pr

ehea

ting

tem

pera

ture

Prep

ress

ing

tem

pera

ture

Mai

n pr

essi

ng te

mpe

ratu

re

Prep

ress

ing

time

Mai

n pr

essi

ng ti

me

Prep

ress

ing

forc

e

Mai

n pr

essi

ng fo

rce

Wid

th

Hei

ght

LPKF SetLPKF base materials in the standard format(This profile is unchangeable)

250 °C 180 °C 180 °C 10 min 60 min 80 N/cm²

150N/cm²

275 mm 200

Pofiles 1 - 6(Presettings)

250 °C 180 °C 180 °C 10 min 30 min 80 N/cm²

150 N/cm²

275 mm 200 mm

Profile 1Use:

Profile 2Use:

Profile 3Use:

Profile 4Use:

Profile 5Use:

Profile 6Use:

Index

MultiPress S Operating manual 3.0 Rev: 3.6.2009 73

13. Index

AAccessories 3Acetone 51Ambient conditions 21Ambient temperature 67Automatic hydraulic pump

operating 53

BBase material 71Basic functions 40Bore spacings for fiducial bores 31

CCanceling the selection 39Care 59Circuit board plotter 31Cleaning the surfaces 59Composite material 29Conditions of use 6Configuration 35Consumables 71Cooling

manually 49Cooling stage 34Core material 51Curing stage 35

DData cable 18Data sheets 30Declaration of Conformity 69Decommissioning 65Dimensions 67Disclaimer 7Display

During the cooling stage 46during the cooling stage 47, 49during the preheating stage 44during the pressing stages 46, 47Setup menu 45

Display boxes 37Disposal 65

EEquipment 3Error 57Error messages 57

FFan on 49Fiducial bores 31Firmware 40Front view 16

GGeneral safety instructions 8

HHand pump

operating 54Heating stages 33Height 35Hydraulic oil 64Hydraulic pump

automatic 18hand pump 19installing 24

IInner layers 29Inserting the lifting ring 22Inserting the multilayer 52Installation

Required tools 21Isopropanol 51

LLaminate 71Language 40Layout size 67LCD display 37LCD-Display 16Lifting ring 16Long holes 31LPKF Multilayer Materials 71

MMachinery Directive 69Main menu 39Main press force 35, 43, 67Main press temperature 35, 43, 67Main press time 35, 43, 67Main pressing stage 34Maintenance 59Maintenance work 62Material damage 46Material storage 30

Index


Materials 71preparing 50

Menu item 39Menu items 39

selecting 39Multilayer

assembling in the press mold 50inserting 52removing 53width 43

MultilayersGeneral structure 29

OOperating hours 40Operating voltage 67Operational faults 57Outer layers 29Overhauling 62

PPower consumption 67Preheating 40Preheating stage 34

starting automatically 44starting manually 44

Preheating temperature 35, 43, 67Preparatory work 30Prepreg 71Prepress force 35, 43, 67Prepress time 35, 43, 67Prepressing stage 34Prepressing temperature 35, 43, 67Press cushion 51Press jaws

bringing them together 44Press mold

cleaning 59inserting into press system 52

Press mold partlower 51

Press parameters 35Press profiles 33

editing 41individual 72selecting 41

Press systemloading 50

Pressing area 67Pressing stages 33

Sequence 34starting 45

Pressurebuilding up 54lowering 54

Pressure limit 27, 61Profile settings

individual 72Program

canceling 48starting 43

Program abortion 61Protective devices

testing 61Pump strokes 54Putting the machine into operation

for the first time 25

RRear view 17Risk of burns 52, 53Risk of crushing 54Risk of rebounding 54

SSafety device

Open sliding door 26Pressure limit 27

Safety regulations 8Scope of delivery 15Sealing rings 51Selection keys 37, 38Setting the language 26Shipping braces 22Sliding door

open 61Start message 25Structure of a multilayer comprising four layers 30Structured surface 51Switching off 55Switching on 37

TTechnical Data 67Testing the safety devices 26

UUse-by dates 31

VVisual inspection 59

WWeight 67

Documents

MultiPress S Operating manual 3.0, English S-e-3-0.pdfFor your own safety 6 MultiPress S Operating manual 3.0 Rev: 3.6.2009 For your own safety Designated Use MultiPress S The multilayer