ProCutter Zoom 2.

0
Lasermatic®
Cutting head with motor-controlled focal position adjustment
for fibre-coupled lasers

Operating Instructions

© Precitec GmbH & Co. KG • EN 06/2018 D 238389

Impint ProCutter Zoom 2.0

This documentation is protected by copyright law for Precitec GmbH & Co. KG
and must not be reproduced without the prior written consent of Precitec or used
against the due interest of Precitec.
It is intended exclusively for internal use associated with setup and service work.
Any other use is not permitted. Any communication of this documentation to a
third party requires the prior express written permission of Precitec.
We reserve the right to change technical details in the descriptions, information
and illustrations in this documentation.
Lasermatic, Laser Path Finder, the Precitec logo and precitec are registered
trademarks in Germany and/or other countries.
This product group is protected by the patents and utility models below:

DE 10108955 CN 1981976 HK 1105388

DE 102015101263 CN 204867829 KR 1465200
DE 202014105807 EP 1130361 KR 1020177023993
JP 2017539636 EP 3250958 US 6469523
Further patents pending.

Printed in the Federal Republic of Germany.

Responsible for the content

Translation of the original operating instructions

Precitec GmbH & Co. KG

Draisstraße 1
D - 76571 Gaggenau - Bad Rotenfels

Tel.: +49 (0)7225 684-0

Fax: +49 (0)7225 684-900
E-mail: precitec@precitec.de

ii © Precitec GmbH & Co. KG • EN 06/2018 D 238389

Document History

Document History

Date Chapter/page Topic, revision, action taken

06/2018 -- 1st edition

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 iii

Notes ProCutter Zoom 2.0

Notes

iv © Precitec GmbH & Co. KG • EN 06/2018 D 238389

Table of contents

Table of contents

1 Basic safety notes 1 - 1

1.1 Warranty and liability 1 - 1
1.2 Meaning of symbols and notes 1 - 1
1.3 Intended use 1 - 3
1.4 Basic standards 1 - 3
1.5 Obligations of operator and personnel 1 - 4
1.6 Normal operation safety measures 1 - 4
1.6.1 Protection against electric shock 1 - 4
1.6.2 Risk of injury from moving parts 1 - 5
1.6.3 Risk of injury from explosion 1 - 5
1.6.4 Risk of injury from laser radiation 1 - 5
1.6.5 Corrosion in the water cooling circuit 1 - 6
1.6.6 Noise occurring during the laser cutting process 1 - 6
1.7 Storage and transport 1 - 6
1.8 What to do in emergency situations 1 - 6

2 Product description 2 - 7
2.1 Product view 2 - 7
2.1.1 Design and functions 2 - 8
2.1.2 Distance controller 2 - 9
2.1.3 Protective and monitoring equipment 2 - 9
2.1.4 Meaning of LED indicators (Status LEDs 1…4) 2 - 11
2.2 Technical specifications 2 - 12
2.3 Mechanical dimensions 2 - 13
2.3.1 LLK-D version 2 - 13
2.3.2 FCH-16 version 2 - 14
2.3.3 QBH version 2 - 15
2.4 Media connections (standard) 2 - 16
2.5 Laser head with PierceTec function (specific version PT) 2 - 17
2.5.1 Sensor interface (PierceTec sensor) 2 - 17
2.5.2 Mechanical dimensions (PT) 2 - 18
2.5.2.1 LLK-D version 2 - 18
2.5.2.2 FCH-16 version 2 - 19
2.5.2.3 QBH version 2 - 20
2.6 Accessories 2 - 21
2.6.1 Analysing electronics (EG8050A (I/O)) 2 - 21
2.6.2 I/O CAN adapter (device interface - DI) 2 - 21
2.6.3 Optics Service Case (storage box) 2 - 22

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Table of contents ProCutter Zoom 2.0

3 Installation 3 - 23
3.1 Safety notes 3 - 23
3.2 Checking package contents 3 - 24
3.3 Installation (integration into the machine) 3 - 25
3.3.1 Fitting the ceramic part
and nozzle (only in the case of individual parts delivery) 3 - 25
3.3.2 Connecting the laser fibre to the laser head (trained personnel only) 3 - 26
3.3.2.1 Fibre socket LLK-D 3 - 26
3.3.2.2 Fibre socket FCH-16 3 - 27
3.3.2.3 Fibre socket QBH 3 - 28
3.3.2.4 Optimum sealing of the fibre coupling (e.g. LLK-D) 3 - 29
3.3.3 Fixing the cutting head to the machine (trained personnel only) 3 - 30
3.3.3.1 ProCutter Zoom 3 - 30
3.3.3.2 ProCutter Zoom and PierceTec (PT) 3 - 31
3.3.4 Grounding the laser head 3 - 32
3.3.5 Checking the protective window COL
for contamination (fibre replacement, trained personnel only) 3 - 33
3.4 Connecting gas and water 3 - 34
3.4.1 Connecting the cutting gas system (trained personnel only) 3 - 34
3.4.2 Connecting the cooling gas (nozzle) 3 - 35
3.4.3 Connecting the auxiliary gas system (optional) 3 - 36
3.4.4 Connecting the cooling water system (trained personnel only) 3 - 37

4 Installation/Commissioning – I/O operation 4 - 38

4.1 Safety notes 4 - 38
4.2 Connecting the interface (trained personnel only) 4 - 39
4.2.1 Interface description (interface) 4 - 42
4.2.2 Status parameters (laser head) 4 - 42
4.2.3 Reading/querying parameters 4 - 43
4.2.4 Error conditions 4 - 44
4.3 Setting the focal position (motor-controlled, trained personnel only 4 - 46
4.3.1 Assigning a characteristic curve (adjustment range) 4 - 46
4.3.2 Moving to the focal position (TCP voltage adjustment) 4 - 47
4.4 Adjusting the laser beam 4 - 50
4.4.1 Centring the beam 4 - 50
4.4.2 Setting the focal position 4 - 52
4.4.3 TCP offset correction (focus offset) 4 - 53

5 Maintenance 5 - 55
5.1 Safety notes 5 - 55
5.2 Maintenance work (summary) 5 - 56
5.3 Maintenance recommendations 5 - 57

vi © Precitec GmbH & Co. KG • EN 06/2018 D 238389

Table of contents

5.4 Replacing the ceramic part and nozzle (sensor area) 5 - 58

5.5 Care and maintenance of the protective window cartridge 5 - 59
5.5.1 Replacing the protective window 5 - 60
5.5.2 Checking the axial gasket 5 - 61
5.6 Maintaining the sensor insert (SE) 5 - 62

6 Error analysis and diagnostics 6 - 63

6.1 Safety notes 6 - 63
6.2 Malfunctions 6 - 64
6.2.1 Electrical malfunctions 6 - 64
6.2.2 Mechanical malfunctions 6 - 67

7 Appendix 7 - 68
7.1 Basic technical information 7 - 68
7.1.1 Conversion of Units 7 - 68
7.1.2 Compressed air quality (ISO 8573-1) 7 - 68
7.1.3 Cooling water - Dew point temperature 7 - 68
7.1.4 Running cables (notes) 7 - 69
7.2 Parts available 7 - 70

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 vii

List of illustrations ProCutter Zoom 2.0

List of illustrations

Fig. 2-1 Cutting head (view) 2 - 7

Fig. 2-2 Mechanical dimensions (LLK-D version) 2 - 13
Fig. 2-3 Mechanical dimensions (FCH-16 version) 2 - 14
Fig. 2-4 Mechanical dimensions (QBH version) 2 - 15
Fig. 2-5 Connections - Media connections (standard) 2 - 16
Fig. 2-6 Laser head and PierceTec (PT) - Wiring plan (schematic) 2 - 17
Fig. 2-7 Mechanical dimensions (LLK-D & PT version) 2 - 18
Fig. 2-8 Mechanical dimensions (FCH-16 & PT version) 2 - 19
Fig. 2-9 Mechanical dimensions (QBH & PT version) 2 - 20
Fig. 2-10 Accessories: Adjust box EG8050A( (I/O) 2 - 21
Fig. 2-11 Accessories: I/O CAN adapter (communication interface) 2 - 21
Fig. 2-12 Accessories: Optics Service Case 2 - 22
Fig. 3-1 Installation: Ceramic part, nozzle 3 - 25
Fig. 3-2 Installation: Laser fibre (e.g. LLK-D socket) 3 - 26
Fig. 3-3 Installation: Laser fibre (e.g. FCH-16 socket) 3 - 27
Fig. 3-4 Installation: Laser fibre (e.g.QBH socket) 3 - 28
Fig. 3-5 Installation: Sealing the fibre coupling (e.g. LLK-D) 3 - 29
Fig. 3-6 Installation: Laser head to the machine 3 - 30
Fig. 3-7 Installation: Laser head and PierceTec to the machine (PT) 3 - 31
Fig. 3-8 Installation: Laser head - grounding 3 - 32
Fig. 3-9 Installation: Protective window COL (first-time installation/ fibre replacement) 3 - 33
Fig. 3-10 Installation: Cutting gas 3 - 34
Fig. 3-11 Installation: Nozzle cooling gas 3 - 35
Fig. 3-12 Installation: Auxiliary gas 3 - 36
Fig. 3-13 Installation: Cooling water (water cooling circuit) 3 - 37
Fig. 4-1 Installation: Connection diagram (I/O) 4 - 39
Fig. 4-2 Installation: Wiring diagram, ProCutter - CNC (I/O) 4 - 40
Fig. 4-3 Installation: I/O-CAN adapter (overview) 4 - 41
Fig. 4-4 Installation: I/O-CAN adapter (interfaces) 4 - 41
Fig. 4-5 Installation: Pulse diagram - Output selection ('OUTP.SELECT') 4 - 43
Fig. 4-6 Installation: Pulse diagram - Reference travel (‘REF.TRAVEL‘) 4 - 44
Fig. 4-7 Commissioning: Focal position, voltage adjustment 4 - 46
Fig. 4-8 Commissioning: Pulse diagram - Focal position 4 - 47
Fig. 4-9 Commissioning: Pulse diagram - Focal diameter 4 - 48
Fig. 4-10 Commissioning: Laser beam - Beam position, focusing lens 4 - 50
Fig. 4-11 Commissioning: Focal position 4 - 52
Fig. 5-1 Maintenance: Maintenance recommendations 5 - 57
Fig. 5-2 Maintenance: Ceramic part, nozzle 5 - 58
Fig. 5-3 Maintenance: Protective window cartridge 5 - 59
Fig. 5-4 Maintenance: Protective window - Protective window cartridge 5 - 60
Fig. 5-5 Maintenance: Sealing ring - Protective window cartridge 5 - 61
Fig. 5-6 Maintenance: Sensor insert 5 - 62

viii © Precitec GmbH & Co. KG • EN 06/2018 D 238389

List of tables

List of tables

Table 2-1 Technical specifications 2 - 12

Table 4-1 Installation: I/O connector strip, PIN assignment 4 - 39
Table 4-2 Interface: Functions (interface) 4 - 42
Table 4-3 Interface: Parameters - Output values 4 - 43
Table 4-4 Interface: Current value error (summary) 4 - 45
Table 4-5 Focal position, focal diameter: Voltage adjustment 4 - 49
Table 6-1 Error analysis: Electrical malfunctions 6 - 66
Table 6-2 Error analysis: Mechanical malfunctions 6 - 67
Table 7-1 Appendix: Units - Conversion table 7 - 68
Table 7-2 Appendix: Compressed air quality - Purity classes 7 - 68
Table 7-3 Appendix: Cooling water - Dew point temperature 7 - 68
Table 7-4 Appendix: Parts available 7 - 70
Table 7-5 Appendix: Nozzles available 7 - 71

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 ix

List of tables ProCutter Zoom 2.0

x © Precitec GmbH & Co. KG • EN 06/2018 D 238389

1 Basic safety notes

1 Basic safety notes

These operating instructions contain the most important notes for operating
the product in compliance with safety regulations.

Observe all instructions and guidelines in this documentation.

In addition, accident prevention regulations and instructions applicable to the
area of use must be observed.

1.1 Warranty and liability

Precitec GmbH & Co. KG's General Terms of Delivery apply to our prod-
ucts.
We reserve the right to modify designs to improve quality or extend the fields
of use and to make modifications for manufacturing reasons.
If the product / unit is operated incorrectly or if processes are carried out
wrongly, reflections can be caused when laser cutting highly reflective
materials such as copper, brass or aluminium that would damage the laser
head and other system components.
Precitec shall not be liable for any damage or injury caused by incorrect
operation or improper handling of our products / units.
Dismantling the product / unit may result in warranty claims becoming null
and void. However, this does not apply to the replacement of components
that are subject to normal wear and tear and require maintenance or setup
work, unless expressly stated otherwise in this documentation.
We cannot accept any warranty claims or liability if unauthorised
modifications are made to the product / unit or if unsuitable spare parts are
used We urgently recommend that only spare parts (hereinafter referred to as
"original spare parts") supplied by Precitec be used and that these parts be
installed by Precitec or by a specialist designated by Precitec.

1.2 Meaning of symbols and notes

In these operating instructions, the following designations and symbols are

used to indicate hazardous situations and for notes.

Warning!
This symbol indicates an imminent or potential danger to the life and health of
individuals. Not observing these notes may result in severe effects on health or
life-threatening injuries.

Caution!
This symbol indicates a potentially hazardous situation. Not observing these
notes may result in personal injury or damage to equipment.

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 1-1

1.2 Meaning of symbols and notes ProCutter Zoom 2.0

Caution!
Dangerous electrical voltage - indicates a risk of electric shock and warns of
imminent danger to the life and health of individuals or significant damage to
equipment.

Caution!
Laser beam - means that the laser machine may operate in laser class 4 when
commissioning the laser head. Warns of damage to eyes or skin caused by
direct or scattered radiation.

Caution!
Danger of crushing - indicates a potentially hazardous situation. Not observing
these notes may result in personal injury or damage to equipment.

Attention!
ESD-sensitive components - indicates that touching the contact surfaces can
result in damage or destruction of electronic components.

Attention!
Clean workplace - indicates that any work on the product or any fitting or
maintenance work must only be carried out in a clean workplace as dust and
firmly adhering dirt can damage or destroy the components.

Attention!
Do not touch - indicates that touching the contact surfaces or optics may result
in damage to or destruction of components.

Important: Information the user must observe or know to avoid process

disruptions or malfunctions when using the product.

Tip: Gives the user the information needed to achieve the objective directly and
without problems.

Prerequisite: Describes all components and conditions that have to be available

or fulfilled so that an action can be performed successfully.

Further information: Indicates to the user that additional information on the

subject is available.

1-2 © Precitec GmbH & Co. KG • EN 06/2018 D 238389

1 Basic safety notes

1.3 Intended use

The laser head has been designed for integration into a laser cutting machine.
The laser head is used for cutting metals with solid-state and diode lasers.
Only use the product in dry working environments. The products / units must
only be operated in compliance with the specifications stated in the Technical
Data sheet.

Any use which deviates from that which was originally intended is regarded as
improper use. Precitec shall not be liable for any damage caused by the
improper use of the unit.

Electromagnetic Both as a standalone device or in combination with the relevant devices and
compatibility (EMC) cables stated in this documentation, the laser head complies with the
EN 61000-6-2 and EN 61000-6-3 standards as specified in Directive No.
2004/108/EC. It is intended for industrial use.
It is possible that these standards may not be met when using units or cables
provided by the client. Only use the parts / units supplied or original spare
parts and adhere to the instructions in the accompanying manuals relating to
EMC-compliant installations.
If the product / unit is integrated into a system and operated together with
other units, the whole system must comply with the current EMC Directive so
that a general operating permit can be granted.

1.4 Basic standards

Below you will find a summary of basic German and international standards
and regulations that apply to Precitec products.
Precitec does not guarantee that this summary is complete.

DIN VDE 0100 Regulations for setting up power current installations with rated
voltages up to 1000 V
DIN EN 207 Personal eye protection: Filters and eye protectors against laser radiation
(laser goggles)
DIN EN ISO 12100 Safety of machinery - General principles for design - Risk
assessment and risk reduction
DIN EN 60204-1 Safety of machinery: Electrical equipment of machines,
Part 1: General requirements (IEC 60204-1)
DIN EN 60825-1 Safety of laser machines: Part 1 (IEC 60825-1)
DIN EN 61000-6-2 / -6-3 Electromagnetic compatibility (EMC): (IEC 61000-6-2 / -6-3)
Generic standards on interference emission/immunity, Part 2: Industry
BGV A3 Accident prevention regulation: Electrical systems and equipment
BGV B2 Accident prevention regulation: Laser radiation

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 1-3

1.5 Obligations of operator and personnel ProCutter Zoom 2.0

1.5 Obligations of operator and personnel

The operator of the system / machine is obliged to ensure that the personnel
working at the machine
• are familiar with the basic safety at work and accident prevention
regulations and been instructed on how to operate the machine.
• have read and understood the basic safety notes and the operating
instructions and have confirmed this with their signature.

Personnel must be instructed according to the regulations and safety notes

and informed of potentially hazardous situations.
Precitec shall not be liable for any damage caused by not complying with or
having insufficient knowledge about the information contained in the
operating instructions.
Manufacturer's and supplier's regulations must be observed. The prescribed
protective equipment must be used.

1.6 Normal operation safety measures

Only use the parts supplied or original spare parts and do not connect any
other units or cables.
If it has been decided that safe operation is no longer possible, the product /
unit or machine must be switched off.
The unit or the machine must be protected against unintended use.

1.6.1 Protection against electric shock

For operational reasons, components of the laser head such as nozzle body,
sensor body, sensor inserts and nozzle electrodes as well as the
accompanying fitting parts such as union nuts etc. cannot all be connected to
protected earth. These components can carry low voltage.
When installing the unit, make sure that the electrical equipment is designed
in such a way that individuals are protected against electric shock.
The regulations contained in EN 60204-1, especially those included in
Sections 6 'Protection against electric shock' and 6.4 'Protection by PELV'
(Protective Extra Low Voltage) must be met.

Recommendation Use a safety transformer in compliance with DIN EN 61588-2 (IEC 61558-2).

Attention – Grounding the system!

Make sure the system is earthed according to regulations.

1-4 © Precitec GmbH & Co. KG • EN 06/2018 D 238389

1 Basic safety notes

1.6.2 Risk of injury from moving parts

When lowering the linear drive / robot hand to which the laser head is fitted,
there is a risk of injury or damage to equipment.
Never put your hands or other parts of the body under the laser head.
Repair or maintenance work must only be carried out with the power supply
switched off.

1.6.3 Risk of injury from explosion

According to their intended use, laser heads are loaded with gas under
pressure. The specified maximum pressure must never be exceeded. To
ensure that individuals are not harmed, the laser head must always be kept in
perfect condition.
Any connecting elements such as screws and nuts must be tightened firmly.

1.6.4 Risk of injury from laser radiation

The laser head does not emit any laser radiation. However, laser radiation is
guided through the laser head. The machine must be switched off when
carrying out any installation or maintenance work.

Caution – Laser beam!

During commissioning the machine may operate in laser class 4:
• Avoid radiation to eyes or skin caused by direct or scattered radiation.
• Do not look directly at the laser beam even using optical instruments.
• Use laser goggles complying with DIN EN 207 and BGV B2 that are
designed for the wavelength of the connected laser.

If it has been decided that safe operation is no longer possible, the product /
unit or machine must be switched off. The unit or the machine must be
protected against unintended use.

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 1-5

1.7 Storage and transport ProCutter Zoom 2.0

1.6.5 Corrosion in the water cooling circuit

To avoid any corrosion the instructions and maintenance intervals prescribed

by the machine manufacturer, laser source manufacturer or cooling unit
manufacturer must be observed.
To protect the water cooling circuit (stainless steel) against electro-chemical
corrosion, copper or brass connections must not be used. Only stainless steel
or plastic connections can be used.

For pure stainless steel circuits use only deionised water with a conductivity
value prescribed by the laser manufacturer.

1.6.6 Noise occurring during the laser cutting process

With high cutting gas pressure the noise level is >75 dB(A). Noise emitted by
the cutting gas depends on the operating conditions.
To ensure that individuals are not harmed by noise, the manufacturer of the
system / machine must implement or provide written information on relevant
safety measures which must be observed by the operator.

1.7 Storage and transport

To prevent damaging the unit during storage or transport the following

basic rules must be observed:
• Keep the storage temperature within the range specified in
the Technical Data sheet.
• Adopt suitable measures to avoid damage due to humidity,
vibration or impact.
• Do not store the unit within or in the vicinity of magnetic fields
(e.g. permanent magnet or strong alternating field).

1.8 What to do in emergency situations

• Disconnect the machine from the power supply;

set the main switch to AUS ('OFF').
• Only use Class B extinguishers to extinguish fires,
e.g. CO2 extinguishers (carbon dioxide).

1-6 © Precitec GmbH & Co. KG • EN 06/2018 D 238389

2 Product description

2 Product description

2.1 Product view

ProCutter Zoom ProCutter Zoom /

with PierceTec ProCutter Zoom EdgeTec
4
5 14
13
15
6

16
3

17
3

2
8

2
18

ProCz20p_o1L / ProCz20_o1R
1
9

9 10, 11
12
10, 11
12

Fig. 2-1 Cutting head (view)

1 Protective window cartridge 10 Nut MU

2 Focusing unit FF (focusing lens) 11 Ceramic part KT
3 Collimating unit FC (collimating lens) 12 Nozzle DE (nozzle electrode)
4 Fibre socket (collimator) 13 Water connections, ø8 (collimating area) [D]
5 Cutting gas connecttion, ø10 [A] 14 Water connections, ø6 (fibre socket) [E]
6 Protective window cartridge COL (collimator) 15 19-pin connector DI (I/O interface)
7 BNC connection (sensor system) [F] 16 Cooling gas (nozzle) [B]
8 PierceTec module PT (optional) 17 Auxilliary gas [C]
9 Sensor insert SE 18 Status indicator (4 x LED)

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 2-7

2.1 Product view ProCutter Zoom 2.0

2.1.1 Design and functions

The laser head is used for the distance-controlled laser cutting of metals
using fibre-coupled lasers on flat bed machines. It is precisely engineered,
rugged, service-friendly and can be adjusted easily.
All connections are located at the top of the laser head.

Fibre plug-in connection The fibre socket is fitted firmly to the laser head.
All water-conducting parts in the cooling system (integrated in the collimating
area) are made of stainless steel. Fittings with M5 threaded holes for hoses
(D, E - Fig. 2-5, page 2-16) (ø8 mm external/ ø6 mm internal) are used for cooling
water outflow and inflow.

Precitec offers fibre sockets for its high-performance collimators for connecting
conventional fibre optic cables

Beam shaping optics The laser head features two drives that are used for the motor-controlled
adjustment of the focal position and image ratio. This can be used to cut
sheet metal of various thicknesses without having to carry out manual
adjustment.
In order to specify the required focal position and image ratio the device inter-
face (I/O device interface) sends an external analogue signal from 0.3 to 9.7 V.

Protective window cartridge The protective window cartridge is located underneath the beam shaping
optics. The protective window is pressure-proof and can withstand maximum
laser head pressure.

Cutting gas The laser head can be operated at a cutting gas pressure of max. 25 bar
(2.5 MPa). The cutting gas also cools the protective window.

Cutting gas quality in compliance with ISO 8573-1:2010; Solid particles - Class 2,
Water - Class 4, Oil - Class 3 (see Table 7-2, page 7-68).
The purer the cutting gas is the longer the protective window's life will be.

Sensor insert The sensor insert (SE) is fitted firmly to the laser head. It can be removed by
undoing four screws. A ceramic part is fitted to the integral sensor insert from
below. It locks into place firmly as it can only be fitted in one direction and is
secured by a union nut (MU).

Nozzle The nozzle (DE) is screwed into the ceramic part and can be replaced easily if
worn. Precitec nozzles and sensor inserts are very precisely engineered.
Because of the minimum concentricity tolerance any re-adjustment work can
be reduced or avoided when replacing these parts.

Fixing to the machine The laser head is fixed to the machine from the front, using the four bore
holes ø6.6 mm. See Chapter 3.3.3, page 3-30.
Two pin holes ø6F7 (8.5 mm deep) at the back are used to position the unit
precisely and in such a way that this position can be reproduced.

2-8 © Precitec GmbH & Co. KG • EN 06/2018 D 238389

2 Product description

2.1.2 Distance controller

Distance sensor system For distance-controlled cutting, the laser head is equipped with the capacitive
(Lasermatic®) Lasermatic® distance sensor system (sensor cable, max. 20 m).
Together with the other control loop components the system guarantees a
constant standoff distance (focal position) between the nozzle electrode and the
workpiece during laser beam cutting if there are no edges or large workpiece
surface bulges in the sensor's scanning range.

2.1.3 Protective and monitoring equipment

Customer control systems can monitor the laser head's operating status -
thanks to the various monitoring units integrated in the laser head. The device
interface (DI) can query different parameters. Their limit values are monitored
by the machine controller (CNC/PLC).
If limit values or measuring range limits are exceeded, a collective error (/
ERROR) is generated. A specific current value on the device interface (DI)
indicates the error condition (see Table 4-4, page 4-45).
LED indicators on the laser head also inform the user about any error
conditions (see Chapter 2.1.4, page 2-11).
The error limits for specific parameters depend very much on the process.
The customer's control system must therefore switch the machine off.
If more than one error is present at the same time, error output depends on
the current value defined for each error code.
The measuring range limit values do not define the maximum permissible
operating range!

Process data (e.g. temperature, pressure, diffused light, humidity) can be queried on
the device interface (DI) using the communication interface (see “I/O CAN
adapter”, Fig. 2-11, page 2-21).
If the focal position is no correct (faulty), reference travel must be carried out to
reset the error. All the other errors are reset automatically once the cause of
the error has been rectified.
Collective errors are also output for at least 2 seconds for short-term error
events. This enables short-term errors to be analysed.

Protective window COL The protective window monitoring device detects if the protective window
(above the collimating lens) cartridge is pulled out. In this case a collective error is generated.
Protective window The protective window monitoring device detects different conditions, e.g. if
(below the focusing lens) the protective window cartridge is pulled out or if the protective window is
missing. In this case a collective error is generated.
The temperature and diffused light monitoring devices detect soiled
protective windows. Current temperature values can be queried by the
controller. Individual user interaction can be requested by the controller if
process-specific limit values are stored.
A collective error is generated if the temperature is higher than about 80 °C or if
the diffused light radiation exceeds 80%. The customer's system can also be
set to a smaller limit value if necessary.

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 2-9

2.1 Product view ProCutter Zoom 2.0

Head temperature Temperature sensors monitor the laser head. If the temperature exceeds
55 °C, a collective error is generated. The customer's system can also be set
to a smaller limit value if necessary.

Optics temperature Temperature sensors monitor the lenses installed in the laser head. A
(collimating & focusing lens) collective error is generated if the collimating lens temperature exceeds
100 °C and the temperature of the focusing lens is 80 °C or higher.
The customer's system can also be set to a smaller limit value if necessary.

Diffused light A sensor monitors any divergent laser radiation inside the beam path. If the
(beam path) diffused light radiation exceeds 80%, a collective error is generated.
The customer's system can also be set to a smaller limit value if necessary.

Pressure - Cutting gas A precision pressure sensor measures the cutting gas pressure in the laser
head. The controller can query the pressure value via the device interface (DI).
If the cutting gas pressure is >25 bar (2.5 MPa) , a collective error is generated.
The customer's system can also be set to a smaller limit value if necessary.

Leak – Protective window If the pressure exceeds 3 bar (3 MPa), a collective error is generated.
The customer's system can also be set to a smaller limit value if necessary.

Cooling the collimating area The collimator must be water-cooled. Fittings with for hoses (outer diameters of
ø6 mm / ø4 mm) are used for cooling water outflow and inflow.
The cooling water is conveyed around the fibre socket and aperture in two
(stainless steel) circuits, indirectly cooling the collimating area.

Cooling the nozzle If required, cooling gas outlets in the nut enable additional nozzle electrode
cooling, e.g. when laser cutting highly reflective materials. The nozzles have
a large collar to increase the area to be cooled by the gas. The cooling gas
connection (M5) is located at the side the laser head.

Collision detection When Precitec analysing electronics are used, an electronic collision signal is
emitted when the sensor insert or the nozzle contacts the machine mass. The
signal stops the drive or enables the laser head to take evasive action.

Specific laser head versions (optional)

EdgeTec (ET) The EdgeTec technology package enables adjustments of the laser source
Technology package hardware and software, laser head modifications and a new way of process
for high-quality cutting edges
control. Significant quality improvements can be achieved, especially when
using nitrogen to cut stainless steel and aluminium.

PierceTec (PT) The PierceTec technology (PierceTec module) monitors and controls the piercing
Technology package process by means of coaxial back reflections (see Chapter 2.5 "Laser head with
for high-quality piercing
PierceTec function (specific version PT)", page 2-17). This function ensures that the
actual cutting process will only start when the material has been fully cut.

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2 Product description

2.1.4 Meaning of LED indicators (Status LEDs 1…4)

The status indicators (LEDs 1…4, from left to right, see Fig. 2-1, page 2-7 (18)) inform
the user about the condition of the laser head and its components, based on
the data received from the integrated monitoring electronics.
GREEN ready for operation
Reference travel completed successfully.
Focal position within the permitted tolerance range (target position).
Focal position (1) RED malfunction
Faulty reference travel
Servo overload
Motor current consumption too high, mechanical problems (doesn't move smoothly).
flashes RED EdgeTec malfunction (specific version, optional)
1 x per second
OFF Linear drive position outside the setpoint value /
(does NOT light up) EdgeTec not in position
when positioned to a new setpoint, during reference travel or if the position
setpoint value is not permitted
No power supply or faulty, loose connection

GREEN ready for operation

normal operation, no error
ORANGE…RED increased head temperature (top limit range) or
Temperature /
humidity* (2)
increased lens temperature (top limit range)
RED head temperature limit exceeded
flashes RED focusing lens temperature exceeded
1 x per second
flashes RED collimating lens temperature exceeded
3 x per second
flashes RED* humidity limit value exceeded
10 x per second
OFF no supply voltage
(does NOT light up) broken cable or faulty, loose connection

GREEN ready for operation

normal operation, no error
RED protective window cartridge leak  pressure too high
Pressure (3)
flashes RED cutting gas pressure  max. pressure exceeded
1 x per second
OFF no power supply
(does NOT light up) broken cable or faulty, loose connection

GREEN ready for operation

normal operation, no error
ORANGE…RED increased protective window temperature (top limit range)
Protective window /
diffused light* (4)
RED protective window temperature exceeded
flashes RED protective window not inserted
1 x per second
flashes RED protective window cartridge/ protective window cartridge COL missing
3 x per second
flashes RED* diffused light limit value exceeded (protective window/ protective window
10 x per second COL/ beam path)
OFF no power supply
(does NOT light up) broken cable or faulty, loose connection

If an LED lights up red, the system/machine must be stopped immediately

(noting the process condition) and the cause must be checked.

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2.2 Technical specifications ProCutter Zoom 2.0

2.2 Technical specifications

Laser head ProCutter Zoom

Laser - Wavelength 1030 … 1090 nm

Laser power max. 12 kW
image ratio 1:1,2 / 1:1,5 / 1:2,0 / 1:2,5 / 1:3,0 / 1:3,5 / 1:4,0
NA max. 0.13
External acceleration (laser head) max. 45 m/s2
Precitec does not permit the recommended maximum acceleration values for the
laser head integrated in the laser cutting machine to be exceeded.

Modification speed - focal position max. 100 …233 mm/s (depending on image ratio)
Adjustment range:
– horizontal (3 mm) ±1.5 mm
– vertical
image ratio 1:1.2 – 30 …+ 15 mm
image ratio 1:1.5 – 30 …+ 15 mm Attention - Image ratio!
image ratio 1:2.0 – 30 …+ 15 mm The image ratio may only be
image ratio 1:2.5 – 30 …+ 15 mm set or modified if the laser is off
image ratio 1:3.0 – 30 …+ 15 mm (no active laser beam).
image ratio 1:3.5 – 30 …+ 15 mm
image ratio 1:4.0 – 30 …+ 15 mm

Installation
– Bore holes (back) 4 x ø6.6 (for M6 screws)
– Pin holes (back) 2 x ø4F7, 8.5 mm deep
Media connections:
– Cutting gas(top) Fitting ø10, max. 25 bar (2.5 MPa)
Attention: Fitting is glued on! (supply lines with an external/internal diameter of ø10/ø7 mm)
– Auxiliary gas M5, max. 5 bar
– Cooling gas/shielding gas (nozzle) M5, max. 5 bar
– Water cooling (fibre socket) Fitting ø6, max. 5 bar (0.5 MPa), flow rate min. 1.5 l/min
(supply lines with an external/ internal diameter of ø6/ ø4mm)
– Water cooling (laser head) Fitting ø8, max. 5 bar (0.5 MPa), flow rate min. 1.5 l/min
(supply lines with an external/ internal diameter of ø8/ ø8 mm)
Water cooling circuit (laser head) stainless steel
Connection - distance sensor system BNC for Lasermatic®
Operating voltage 24 V ±10%, max. 6 A
I/O interface (socket, 19-pin) The current on the switching outputs must be limited to max. 30 mA by an
appropriate external resistor circuit.

Operating temperature 5 …55 °C

Storage temperature –25 … +55 °C (+70 °C for a short time)
Humidity 30 - 95%, no dew
Length, axial* 446 mm (see Chapter 2.3, page 2-13)
* from the nozzle tip to the upper edge of the laser head (standard configuration)

Weight approx. 7.6 … 10.0 kg (depending on version)

Table 2-1 Technical specifications

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2 Product description

2.3 Mechanical dimensions

2.3.1 LLK-D version

ProCz20_D_o1

Fig. 2-2 Mechanical dimensions (LLK-D version)

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 2 - 13

2.3 Mechanical dimensions ProCutter Zoom 2.0

2.3.2 FCH-16 version

ProCz20_Qplus_o1

Fig. 2-3 Mechanical dimensions (FCH-16 version)

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2 Product description

2.3.3 QBH version

ProCz20_QBH_o1

Fig. 2-4 Mechanical dimensions (QBH version)

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 2 - 15

2.4 Media connections (standard) ProCutter Zoom 2.0

2.4 Media connections (standard)

D
E
B

ProCz20_oMED
Fig. 2-5 Connections - Media connections (standard)

A Cutting gas- ø10 D Water, ø8 (collimating area)

B Cooling gas - M5 (6 mm deep) - nozzle E Water, ø6 (fibre socket)
C Auxiliary gas - M5 (6 mm deep) F BNC - sensor system (laser head - right)

Attention - Media connections!

Please note the connection dimensions and the permitted maximum
pressure load on the media connections (cutting gas, cooling gas, shielding gas
and water cooling circuit), see Chapter 3.4, page 3-34.

The Precitec ProCutter App 2.0 (Android) shows the laser head condition during
operation and queries any error messages. As an option, the app can also be
used to set some sensor value parameters.
The following parameters can be set: temperature of the beam shaping optics
and laser head, cutting gas pressure, amount of diffused light in the beam path.
The App is available in the Google Playstore.

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2 Product description

2.5 Laser head with PierceTec function (specific version PT)

PierceTec The PierceTec technology monitors and controls the piercing process by
Technology package means of coaxial back reflections. This function ensures that the actual
for high-quality piercing
cutting process will only start when the material has been fully cut.

2.5.1 Sensor interface (PierceTec sensor)

AE Box

Wiring plan
For detailed information, please
refer to the separate
“AE PierceTec” documentation.

Fig. 2-6 Laser head and PierceTec (PT) - Wiring plan (schematic)

Use only original Precitec cables.

Unsuitable or wrongly assembled cables can have a negative effect on sensor
system’s PierceTec functionality.

Meaning of LED indicators (Status LEDs, SD)

The LEDs inform the user about the sensor status and cutting process:

Power LED GREEN ready for operation

power supply on
OFF not operational
(does NOT light up) no power supply
broken cable or faulty, loose connection
Signal LED BLUE VIS signal
Sensor detects visible process radiation
RED IR signal
Sensor detects infrared process radiation

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 2 - 17

2.5 Laser head with PierceTec function (specific version PT) ProCutter Zoom 2.0

2.5.2 Mechanical dimensions (PT)

2.5.2.1 LLK-D version

ProCz20_D_PT_o1

Fig. 2-7 Mechanical dimensions (LLK-D & PT version)

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2 Product description

2.5.2.2 FCH-16 version

ProCz20_Qplus_PT_o1

Fig. 2-8 Mechanical dimensions (FCH-16 & PT version)

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 2 - 19

2.5 Laser head with PierceTec function (specific version PT) ProCutter Zoom 2.0

2.5.2.3 QBH version

ProCz20_QBH_PT_o1

Fig. 2-9 Mechanical dimensions (QBH & PT version)

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2 Product description

2.6 Accessories

2.6.1 Analysing electronics (EG8050A (I/O))

8010eg_BAD
Fig. 2-10 Accessories: Adjust box EG8050A( (I/O)

The adjust box is the analysing electronics for the tried and tested Lasermatic®
sensors. The adjust box optionally delivers an analogue control voltage or a
linear distance signal.
The adjust box provides an analogue signal for monitoring sensor insert
temperature and plasma activity. It also creates digital signals, e.g. if a cable is
broken, the nozzle touches the workpiece or interfering contours, the nozzle is
lost, the standoff distance is too high etc.

For detailed information on the analysing electronics, please refer to the

separate Adjust Box EG8050 documentation.

2.6.2 I/O CAN adapter (device interface - DI)

Attention – Littlefuse!
F1 – Littelfuse 02163.15MXP
F2 F2 – Littelfuse 0216.500MXP
If fuses must be replaced, only use
fuses of the same type and rating.

F1
595-AA-ProC

Fig. 2-11 Accessories: I/O CAN adapter (communication interface)

The I/O CAN adapter enables the device interface DI to communicate (via I/O)
with the primary controller (CNC/PLC, digital inputs/outputs (24 V)).
The supply voltage connections are protected by fuses.
Two green LEDs indicate that the unit is supplied with power.

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 2 - 21

2.6 Accessories ProCutter Zoom 2.0

2.6.3 Optics Service Case (storage box)

ServiceBox
Fig. 2-12 Accessories: Optics Service Case

The optics service case is used to store replacement optics and accessories
(cleaning materials, protective covers, auxiliary tools) required for the care and
maintenance of the beam shaping optics (P0001-000-Q0002).

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3 Installation

3 Installation

3.1 Safety notes

General safety regulations We assume that you know and observe the following generally accepted
safety regulations:
• VDE Regulations, especially VDE 0100/ 0837
• BGV A1 General regulations
• BGV A3 Electrical systems and equipment
• BGV B2 Laser radiation accident prevention regulations

Personnel requirements Any repair work and any work relating to troubleshooting require special
knowledge and must only be carried out by trained specialist staff.
Specialist staff must be instructed in accordance with the regulations and
safety notes and informed of potentially hazardous situations.
Precitec shall not be liable for any damage caused by not complying with or
having insufficient knowledge about the information contained in the operating
instructions.
Manufacturer's and supplier's regulations must be observed. The prescribed
protective equipment must be used.

Caution – Dangerous electrical voltage!

The system must be switched off and protected against being switched on
again before carrying out any maintenance or repair work on the laser head.

Caution – Danger of crushing!

During all maintenance and repair work, no hands or other body parts should
be in the proximity of the linear drive or under the laser head.

Caution – Laser beam!

The machine must be switched off before carrying out any maintenance or
repair work on the laser head. During commissioning the machine may operate
in laser class 4:
• Avoid radiation to eyes or skin caused by direct or scattered radiation.
• Do not look directly at the laser beam even using optical instruments.
• Use laser goggles complying with DIN EN 207 and BGV B2 that are
designed for the wavelength of the connected laser.

Attention – Sensitive optics!

Dust and firmly adhering dirt can lead to burn marks on the optics or damage
them. Therefore, only touch the non-sensitive parts on the optical components.

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 3 - 23

3.2 Checking package contents ProCutter Zoom 2.0

3.2 Checking package contents

The following checks should be carried out before fitting the laser head:
• Are the parts supplied complete (see the delivery note)?
• Is there any visible damage?

Package contents Basically, you will need the following parts:

• Laser head (ProCutter) with integrated beam shaping optics (collimating and
focusing lenses, protective window) and sensor insert SE pre-assembled
(version as stated on the delivery note)

• Connection adapter and control cable (device interface DI)

• Sensor cable
• Analysing electronics (version as stated on the delivery note)

Caution – Overpressure!
An overpressure of up to 25 bar (2.5 MPa) can be supplied to the laser head
through the relevant connection point. The laser head's functional efficiency
must always be guaranteed to avoid any accidents.
If damaged, the laser head must be protected against accidental use.
Damaged parts must be replaced.

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3 Installation

3.3 Installation (integration into the machine)

3.3.1 Fitting the ceramic part and nozzle (only in the case of individual parts delivery)
Package contents In the case of individual parts delivery, the laser head is supplied individually
packed:
• Laser head with integrated beam shaping optics (collimating and focusing
lenses, protective window) and sensor insert (SE) pre-assembled
• Ceramic part (KT B2" CON) with O-ring (ø26.00x1.50 Viton) and nozzle (DE)
The components installed in the laser head's beam path must be handled
with care. If the laser head is ordered as a part delivery and is to be fitted on
site, special laboratory-compliant measures (cleanroom workplace) must be
taken when individual packages are opened, when protective film is removed
and when the laser head itself is mounted.

When fitting, check that the protective window is installed and that the beam
path has not been opened up.

Fitting the
ceramic part and nozzle

ProCz20_oDE
3

Fig. 3-1 Installation: Ceramic part, nozzle

1 Sensor insert SE 3 Nut MU

2 Ceramic part KT 4 Nozzle DE (nozzle electrode)

1. Insert the ceramic part (2) into the sensor insert (1) carefully.
Note the locating pins on the sensor insert when doing this – they must engage into the
ceramic part.

The nozzle and the nut must only be tightened by hand (do not use any tools).
Otherwise the ceramic part could be damaged.
An adjustable hook spanner size 40/42 can be used for easy removal.
In addition to this, make sure that the contact surfaces on these parts are clean.

2. Screw the ceramic part (2) to the sensor insert (1) hand-tight using the union nut (3).

3. Screw the nozzle (4) into the ceramic part (2) hand-tight.

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3.3 Installation (integration into the machine) ProCutter Zoom 2.0

3.3.2 Connecting the laser fibre to the laser head (trained personnel only)

3.3.2.1 Fibre socket LLK-D

Attention – Clean workplace!

Only carry out any maintenance and repair work on the laser head in a clean
workplace.

Before connecting the laser fibre remove any dirt on the plug.

Laser fibre To prevent any dust or dirt getting into the fibre socket accidentally,
we recommend that you connect the laser fibre when the optics are in a
horizontal position.

Locking area

292-LLKD-o1pc
A
Fig. 3-2 Installation: Laser fibre (e.g. LLK-D socket)

1. Remove the protective film/ protective cap from the fibre socket.

2. Insert the (correctly aligned) fibre plug into the unlocked fibre socket up to the stop
(locking cap in its lowest position).
Attention: Before inserting the plug, make sure that its locking cap pin is aligned with the
slot in the socket (see detailed view A).

3. Release the locking cap. The cap will snap into place in the direction of the fibre
and locks (see detailed view B).

Locking or unlocking the socket is not permitted when the plug is not inserted.

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3 Installation

3.3.2.2 Fibre socket FCH-16

Attention – Clean workplace!

Only carry out any maintenance and repair work on the laser head in a clean
workplace.

Before connecting the laser fibre remove any dirt on the plug.

Laser fibre To prevent any dust or dirt getting into the fibre socket accidentally,
we recommend that you connect the laser fibre when the optics are in a
horizontal position.

B
Locking area

292-FCH-o1pc
A
Fig. 3-3 Installation: Laser fibre (e.g. FCH-16 socket)

1. Remove the protective film/ protective cap from the fibre socket.

2. Insert the (correctly aligned) fibre plug into the unlocked fibre socket up to the stop
(locking cap in its lowest position). The locking cap will snap into place in the direction
of the fibre and locks (see detailed view B).
Attention: Before inserting the plug, make sure that its locking cap pin is aligned with the
slot in the socket (see detailed view A).

Locking or unlocking the socket is not permitted when the plug is not inserted.

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 3 - 27

3.3 Installation (integration into the machine) ProCutter Zoom 2.0

3.3.2.3 Fibre socket QBH

Attention – Clean workplace!

Only carry out any maintenance and repair work on the laser head in a clean
workplace.

Before connecting the laser fibre remove any dirt in the three bayonet contours
and in the plug.

Laser fibre To prevent any dust or dirt getting into the fibre socket accidentally,
we recommend that you connect the laser fibre when the optics are in a
horizontal position.

Locking area

292-QBH-o1pc
A
Fig. 3-4 Installation: Laser fibre (e.g.QBH socket)

1. Remove the protective film/ protective cap from the fibre socket.

2. Insert the (correctly aligned) fibre plug into the unlocked fibre socket up to the stop.
Attention: Before inserting the plug make sure that its bayonet contour is aligned with the
red marks on the locking cap and socket (see detailed viewA).

3. Carefully turn the locking cap to the first stop, then lift and lock it (see detailed view B).
The white mark on the locking cap must be within the fibre socket's white locking area.
Tip: The (white) locking area helps you to visually check whether or not the socket is locked
correctly.

Locking or unlocking the socket is not permitted when the plug is not inserted.

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3 Installation

3.3.2.4 Optimum sealing of the fibre coupling (e.g. LLK-D)

Processes where a large amount of dust occurs, may require the fibre plug/
fibre socket interface to be sealed.
We recommend that you use flexible, silicone-free adhesive tape that removes
cleanly without any residue.

3…4x

292-140-04
Fig. 3-5 Installation: Sealing the fibre coupling (e.g. LLK-D)

 Firmly wrap the adhesive tape around the fibre plug and fibre socket (3-4 layers).

Laser fibre – To prevent any dust or dirt getting into the collimator accidentally,
we recommend that you connect the laser fibre when the optics are in a
horizontal position.

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3.3 Installation (integration into the machine) ProCutter Zoom 2.0

3.3.3 Fixing the cutting head to the machine (trained personnel only)

3.3.3.1 ProCutter Zoom

Attention – Risk of vibration!

When fitting the laser head to the machine, the machine manufacturer must take
appropriate measures to prevent the laser head from vibrating.

ProCz20_D_o2

Fig. 3-6 Installation: Laser head to the machine

Laser head The laser head is fixed using four bore holes ø6.6.
(back) Two pin holes ø6F7 (8.5 mm deep) at the back are used to position the unit
precisely and in such a way that this position can be reproduced.

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3 Installation

3.3.3.2 ProCutter Zoom and PierceTec (PT)

Attention – Risk of vibration!

When fitting the laser head to the machine, the machine manufacturer must take
appropriate measures to prevent the laser head from vibrating.

ProCz20_D_PT_o2

Fig. 3-7 Installation: Laser head and PierceTec to the machine (PT)

Laser head The laser head is fixed using four bore holes ø6.6.
(back) Two pin holes ø6F7 (8.5 mm deep) at the back are used to position the unit
precisely and in such a way that this position can be reproduced.

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3.3 Installation (integration into the machine) ProCutter Zoom 2.0

3.3.4 Grounding the laser head

If not earthed correctly, sensor system malfunctions may occur and the
machine may be damaged by moving parts (jerky guidance of the laser head,
vibrations)!

Grounding area

ProCz20_oPE

Fig. 3-8 Installation: Laser head - grounding

Make sure the system and the laser head are earthed according to
regulations. Connect the marked grounding area (connection) on the laser
head and protective earth (PE).

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3 Installation

3.3.5 Checking the protective window COL for contamination

(fibre replacement, trained personnel only)

The components installed in the laser head's beam path must be handled
with care.
We recommend that you check the protective window COL for any
contamination when the laser head is fitted to the machine.

Attention – Clean workplace!

Only carry out any maintenance and repair work on the laser head in a clean
workplace.
Do not allow dust and dirt to get into the laser head.

Precitec recommends cleaning the laser head carefully before carrying out any
service or replacement work.

ProCz20_oKcol

2
1
SW2

Fig. 3-9 Installation: Protective window COL (first-time installation/ fibre replacement)

1 Cover (cartridge PW-COL) 2 Cartridge PW-COL

Checking the protective window COL for any contamination (clean if necessary)

1. Remove the cover (1) (4 x M2.5x8 - SW2) and put it on a clean pad.

2. Undo the screws (2 x M2.5x8 - SW2). Then pull out the cartridge until the protective
window is completely visible.

3. Check the protective window for any contamination. Blow away any dirt with
clean air (pressurised air, can).
Repeat until it is clean.

If the protective window can no longer be cleaned or if it is damaged, the

cartridge PW-COL must be replaced. Call service engineer.

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3.4 Connecting gas and water ProCutter Zoom 2.0

3.4 Connecting gas and water

Attention – Pressure tightness!

Please ensure that all connections on the laser head that are not being used
are closed with screw plugs; otherwise the laser head will no longer work
correctly and gas or liquids can get into it.

3.4.1 Connecting the cutting gas system (trained personnel only)

ProCz20_oCUTg
Fig. 3-10 Installation: Cutting gas

A Cutting gas connection, ø10

Attention – Cutting gas!

Only clean, dry cutting gas can be used.
Gas quality in compliance with ISO 8573-1:2010; Solid particles - Class 2, Water - Class 4,
Oil - Class 3 (see Table 7-2, page 7-68).
The maximum pressure on the laser head is 25 bar (2.5 MPa).

 Connect the gas hose to connection (A) (ø10).

(supply lines with an external diameter of ø10 mm)
Precitec recommends connecting the cutting gas using hoses with the largest possible
inner diameter.

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3 Installation

3.4.2 Connecting the cooling gas (nozzle)

(6 mm deep)

ProCz20_oKgDE
Lateral

Fig. 3-11 Installation: Nozzle cooling gas

B Cooling gas connection M5 (6 mm deep), nozzle

If required, cooling gas outlets in the nut enable additional nozzle (nozzle
electrode) cooling.
We recommend that you use the additional gas nozzle cooling device when
cutting highly reflective and thick materials.

Attention – Cooling gas!

Only clean, dry cooling gas/pressurised air can be used (no O2)
Gas quality in compliance with ISO 8573-1:2010; Solid particles - Class 2, Water - Class 4,
Oil - Class 3 (see Table 7-2, page 7-68).
The maximum pressure for cooling the nozzle is 5 bar (0.5 MPa).

 Connect the gas hose to connection (B) (M5, 6 mm deep).

When delivered, the connection is closed with a locking screw.
Attention: Sealing the fittings - sealing tape or sealing material is not permitted!

Cooling gas pressure!

The cooling gas flow rate and pressure mainly depend on the laser power used
for cutting. Therefore we cannot recommend a gas pressure value. The correct
pressure can, however, be determined by carrying out tests.
Optimum cooling can already be achieved from about 0.5 bar (0.05 MPa).

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3.4 Connecting gas and water ProCutter Zoom 2.0

3.4.3 Connecting the auxiliary gas system (optional)

(6 mm deep)
C

Lateral

C*

ProCz20_oZsG
Fig. 3-12 Installation: Auxiliary gas

C Auxiliary gas M5 (6 mm deep)

The connection (C) and the relevant outlet orifice (C*) (ø8.1 mm) can be used
to supply additional gases and liquids to the working area. The maximum
pressure is 5 bar (0.5 MPa).
The connections that are not used must be closed using screw plugs.

Attention – Auxiliary gas!

Only clean gas can be used s (no O2).
The maximum pressure for the auxiliary gas is 5 bar (0.5 MPa).

 Connect the gas hose to connection (C) (M5, 6 mm deep).

When delivered, the connection is closed with a locking screw.
Attention: Sealing the fittings - sealing tape or sealing material is not permitted!

Auxiliary gas pressure!

The auxiliary gas flow rate and pressure mainly depend on the laser power
used for cutting. Therefore we cannot recommend a gas pressure value. The
correct pressure can, however, be determined by carrying out tests.

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3 Installation

3.4.4 Connecting the cooling water system (trained personnel only)

Attention – Cooling water!

• For pure stainless steel circuits use only deionised water with a conductivity
value prescribed by the laser manufacturer (see the paragraph "Corrosion in the
water cooling circuit", page 5-56). If water cooling circuits consist of different metals,
adhere to the laser manufacturer's instructions.
• The temperature inside the water cooling circuit must be set in such a way
that condensation cannot form on the optics (see dew point, Table 7-3, page 7-68).
• The maximum pressure for the cooling water is 5 bar (0.5 MPa). A minimum
cooling water flow rate of 1.5 l/min must be guaranteed.

D1
D2
E2
E1

ProCz20_oWAS
Fig. 3-13 Installation: Cooling water (water cooling circuit)

D Water connections, ø8 (collimating area) E Water connections, ø6 (fibre socket)

 Connect the cooling water hoses to the relevant connections (D) (collimating area).
(supply lines with an external/ internal diameter of ø8/ ø8 mm)

 Connect the cooling water hoses to the relevant connections (E) (fibre socket).
(supply lines with an external/ internal diameter of ø6/ ø4mm)

Tip: Precitec recommends that you use a suitable distributor so that the two cooling
circuits can be installed as close as possible to the laser head (parallel connection).

Attention – Corrosion in the cooling circuit!

To avoid any corrosion the instructions and maintenance intervals prescribed
by the machine manufacturer, laser source manufacturer or cooling unit
manufacturer must be observed.
To protect the water cooling circuit (stainless steel) against electro-chemical
corrosion, copper or brass connections must not be used. Only stainless steel
or plastic connections can be used.

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 3 - 37

4.1 Safety notes ProCutter Zoom 2.0

4 Installation/Commissioning – I/O operation

4.1 Safety notes

General safety regulations We assume that you know and observe the following generally accepted
safety regulations:
• VDE Regulations, especially VDE 0100/ 0837
• BGV A1 General regulations
• BGV A3 Electrical systems and equipment
• BGV B2 Laser radiation accident prevention regulations

Personnel requirements Any repair work and any work relating to troubleshooting require special
knowledge and must only be carried out by trained specialist staff.
Specialist staff must be instructed in accordance with the regulations and
safety notes and informed of potentially hazardous situations.
Precitec shall not be liable for any damage caused by not complying with or
having insufficient knowledge about the information contained in the
operating instructions.
Manufacturer's and supplier's regulations must be observed. The prescribed
protective equipment must be used.

Caution – Dangerous electrical voltage!

The system must be switched off and protected against being switched on
again before carrying out any maintenance or repair work on the laser head.

Caution – Danger of crushing!

During all maintenance and repair work, no hands or other body parts should
be in the proximity of the linear drive or under the laser head.

Caution – Laser beam!

The machine must be switched off before carrying out any maintenance or
repair work on the laser head. During commissioning the machine may operate
in laser class 4:
• Avoid radiation to eyes or skin caused by direct or scattered radiation.
• Do not look directly at the laser beam even using optical instruments.
• Use laser goggles complying with DIN EN 207 and BGV B2 that are
designed for the wavelength of the connected laser.

Attention – Sensitive optics!

Dust and firmly adhering dirt can lead to burn marks on the optics or damage
them. Therefore, only touch the non-sensitive parts on the optical components.

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4 Installation/Commissioning – I/O operation

4.2 Connecting the interface (trained personnel only)

SV3 9

Sp_ProC_ioc
2 I/O
1 3 4
5
Ccon

8
6
Acon
Dcon I/O
7 Bcon CNC/PLC

Fig. 4-1 Installation: Connection diagram (I/O)

1 19-pin connector DI (device interface) 5 BNC connection

2 Control cable (max. 20 m) 6 Sensor cable (max. 20 m)
3 24V power supply unit (laser head) 7 24V power supply unit (EG)
4 I/O CAN adapter (suitable for TS35) 8 Adjust box (EG)
9 Flat cable (EG)

I/O interface, PIN assignment (I/O-CAN adapter)

connector strip

Output
Input/
PIN
I/O

Signal Remark

1 I 24V POWER
Laser head / 24 VDC ±10%, max. 6 A
2 I 0V POWER
3 I 24V I/O
I/O interface / 24 VDC ±10%, max. 0.5 A
4 I 0V I/O
5 I OUTP.SELEC Accept the 'ANALOG-IN' output value
(12-pin)

6 O ANALOG-OUT (0 … 20 mA)
7 I REF.TRAVEL Carry out reference travel
8 I AUTOMATIC Accept the focal position
9 O /ERROR Collective error detected
10 O POS.REACHED Position setpoint reached
11 I ANALOG-IN +
ANALOG-IN (0…10 V)
12 I ANALOG-IN –

Table 4-1 Installation: I/O connector strip, PIN assignment

Connecting the adapter

 Connect the 19-pin connector (1) (laser head) and the I/O-CAN adapter (4) using the
control cable (2).
 Connect the SV3 connector (10-pin) on the I/O-CAN adapter (4) and the
C connector (10-pin) of the EG (8) via the flat cable (9).
Note: The adapter must not be connected to the adjust box (Econ)!

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4.2 Connecting the interface (trained personnel only) ProCutter Zoom 2.0

Connecting I/O interfaces

Attention – I/Os
The current at the switching outputs (PIN-9, PIN-10; optocoupler) must be limited
by a suitable external resistor circuit to a max. of 30 mA.

 Connect all I/Os of the laser head to the CNC/PLC.

Mind the current at the switching outputs (optocoupler) when doing this.

 Connect the 24 V power supply unit (3) to the I/O connector strip (I/O-CAN adapter).
PIN assignment (I/O connector strip; adapter): PIN-2, PIN-4 - 0 V / PIN-1, PIN-3 - 24 VDC

I/O wiring diagram (laser head, interface)

24 V POWER
0 V POWER 24 V / max. 6 A

REF.TRAVEL

AUTOMATIC

OUTP.SELECT

0 V (optocoupler)

24 V (optocoupler)

POS.REACHED

/ERROR

ANALOG-OUT

ANALOG-IN +
Sp_WK_Madapter

ANALOG-IN –

I/O CAN adapter CNC/PLC

Fig. 4-2 Installation: Wiring diagram, ProCutter - CNC (I/O)

Current limitation – Switching outputs (PIN-9, PIN-10)!

The current on the switching outputs must be limited to max. 30 mA by an appropriate
external resistor circuit.

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4 Installation/Commissioning – I/O operation

I/O CAN adapter (suitable for TS35)

Description
1

595-AA-ProC
Dimensions
75 x 50 mm (WxH)
4
Fig. 4-3 Installation: I/O-CAN adapter (overview)

1 Connector, P-bus (10-pin) 3 I/O connector strip

2 Connector, control cable (19-pin) 4 Clips, mounting rail

The I/O-CAN adapter enables the device interface DI to communicate (via the I/O
connector strip) with the primary controller (CNC/PLC, digital inputs/outputs (24 V)).
The supply voltage connections are protected by fuses.
Two green LEDs indicate that the unit is supplied with power.
The adapter has clips for mounting it onto a TS35 rail in the control cabinet.

Interfaces

Flat cable
Control
cable
F2

F1

595-AA-ProC
I/O connector strip

Fig. 4-4 Installation: I/O-CAN adapter (interfaces)

Attention – Littlefuse!
• F1 – Littelfuse 02163.15MXP
• F2 – Littelfuse 0216.500MXP
If fuses must be replaced, only use fuses of the same type and rating.

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4.2 Connecting the interface (trained personnel only) ProCutter Zoom 2.0

4.2.1 Interface description (interface)

Customer control systems (CNC/PLC) can monitor the laser head's operating
status - thanks to the various electronic components integrated in the laser
head. The device interface (DI) can query different parameters. Their limit
values are monitored by the machine controller (CNC/PLC).
If measuring range limits are exceeded, a collective error (/ERROR) is
generated. A specific current value on the I/CAN adapter's I/O connector strip
(PIN-6) indicates the error condition.
LED indicators on the laser head also inform the user about any error
conditions (see Chapter 2.1.4, page 2-11).
The error limits for specific parameters depend very much on the process.
The customer's control system must therefore switch the machine off if
customer-specific limit values are exceeded. The measuring range limit
values do not define the maximum permissible operating range!
If more than one error is present at the same time, error output depends on
the current value defined for each error code.

If the focal position is no correct (faulty), reference travel must be carried out to
reset the error. All the other errors are reset automatically once the cause of
the error has been rectified.
Collective errors are also output for at least 2 seconds for short-term error events. This
enables short-term errors to be analysed.

4.2.2 Status parameters (laser head)

The primary controller (CNC/PLC) can monitor different parameters and the
condition of the laser head. If limit values are exceeded, the primary controller
adapts the process parameters or requests user action.

Function Parameter Selection voltage [V]

Temperature - Protective window Protective window contamination 0.625
Pressure - Cutting gas Cutting gas pressure 1.25
Protective window not tight (leak) Protective window cartridge sealing (protective window) 1.875
Temperature - Collimating lens Collimating lens contamination 2.50
Temperature - Focusing lens Focusing lens contamination 3.125
Housing temperature Laser head temperature 3.75
Current focal position Focal position 4.375
Diffused laser light in the beam path dirty optics, incorrect adjustment (back reflection) 5.00
Setting the Z position, offset correction Focus offset 6.25
Current image ratio Focal diameter 6.875
Humidity inside the laser head Humidity inside the laser head 7.50
Diffused laser light, protective window Protective window contamination 8.125
Diffused laser light, protective window COL Protective window contamination COL 8.75
Fixed output 0 mA 0 value, analogue output 9.375
Fixed output 20 mA Analogue output maximum value 10.00

Table 4-2 Interface: Functions (interface)

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4 Installation/Commissioning – I/O operation

4.2.3 Reading/querying parameters

The relevant parameters are output via the analogue output.

To reduce the number of I/O lines the required parameter (selected by the PLC)
is output on ‘ANALOG-OUT‘ (PIN-6) (0…20 mA).
The voltage on the I/O terminal should not exceed +/- 0.2 volts.
(min. 3 ms)

AUTOMATIC

ANALOG-IN
(min. 5 ms)

OUTP.SELECT

ProCdia-out_S
(min. 10 ms)

(e.g. 4 mA)
ANALOG-OUT (e.g. 14 mA)

Fig. 4-5 Installation: Pulse diagram - Output selection ('OUTP.SELECT')

The relevant output value is selected by applying voltage to the laser head's
analogue inputs ‘ANALOG-IN+‘ (PIN-11) and ‘ANALOG-IN–‘ (PIN-12) and by
activating the digital input ‘OUTP.SELECT‘ (PIN-5).

To avoid any malfunction during the selection process:

• The analogue value [V] must be stable for 3 ms before selecting the output
value. After selection, it must be stable for at least 5 ms.
• At the same time, the digital input ‘AUTOMATIC‘ (PIN-8) must be set to [LOW].
We therefore recommend that you update the analogue value first and activate
the controller's digital output during the next machine cycle.

Parameters - Output values

Function Parameter Scaling [0…20 mA]

Temperature - Protective window Protective window contamination 0…200 °C
Pressure - Cutting gas Cutting gas pressure 0…25 bar (0 = 1bar abs.)
Protective window not tight (leak) Protective window cartridge sealing (protective window) 0… 4000 mbar
(0 = 1013 mbar abs.)
Temperature - Collimating lens Collimating lens contamination 0…100 °C
Temperature - Focusing lens Focusing lens contamination 0…100 °C
Housing temperature Laser head temperature 0…100 °C
Current lens position Focal position 0…10 V ≈ 0…20 mA
same scaling as setpoint value
Diffused laser light in the beam path dirty optics, incorrect adjustment (back reflection) 0…100%
Diffused laser light, protective window Protective window contamination 0…100%
Diffused laser light, protective window COL Protective window contamination COL 0…100%
Humidity inside the laser head Humidity inside the laser head 0…100%
Current image ratio Focal diameter see Table 4-5, page 4-49
Setting the Z position, offset correction Focus offset 0…100%

Table 4-3 Interface: Parameters - Output values

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4.2 Connecting the interface (trained personnel only) ProCutter Zoom 2.0

As limit value monitoring mainly depends on the process, the controller must
switch off the system or take appropriate measures when limit values are
exceeded. If a sensor's maximum level is exceeded, an ‘/ERROR‘ signal will
be triggered.

When the operating voltage has been switched on and the system has been
referenced, the signal for - Protective window contamination - is present at the
analogue output.

4.2.4 Error conditions

The error limits for specific parameters depend very much on the process.
The customer's control system must therefore switch the machine off if
customer-specific limit values are exceeded. The measuring range limit
values do not define the maximum permissible operating range!
If more than one error is present at the same time, error output depends on
the current value defined for each error code.

If the focal position is no correct (faulty), reference travel must be carried out
to reset the error. All the other errors are reset automatically once the cause
of the error has been rectified.
Collective errors are also output for at least 2 seconds for short-term error events.
This enables short-term errors to be analysed.

In normal operation ‘/ERROR‘ is set to (= High). If there are any errors, ‘/ERROR‘
will be reset to (= Low) and the analogue output will reflect the error.

Reference travel (min. 3 ms) (min. 5 ms)

(resetting errors)

REF.TRAVEL

POS.REACHED (approx. 8 s)
ProCdia-RFz

/ERROR (approx. 8 s)

Fig. 4-6 Installation: Pulse diagram - Reference travel (‘REF.TRAVEL‘)

At the rising edge of ´REF.TRAVEL` (PIN-7) reference travel will start. When the
reference travel procedure is completed successfully, `POS.REACHED` will be
set to (= High) (PIN-10).

`POS.REACHED` must be (= High) (reference travel completed successfully) before

new input signals can be processed.

When power is switched on (Power On) and reference travel has been
completed sucessfully, the laser head will move to the default position
(image ratio = 1:1,2 and focal position = 0 mm).

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4 Installation/Commissioning – I/O operation

Since the analogue interface can only show one error at at time, a current
value is assigned to each error.

Current value
Error (General ERROR)
[mA]
Protective window cartridge not present  19.375
Protective window not present  18.75
Protective window: max. temperature exceeded  18.125
Drive malfunction: overload  17.5
Drive malfunction: positioning error  16.875
Drive malfunction: supply voltage too low  16.25
Drive malfunction: faulty reference travel  15.625
Collimating lens: max. temperature exceeded  15.0
Focusing lens: max. temperature exceeded  14.375
Laser head: max. temperature exceeded  13.75
Diffused laser light: max. level exceeded  13.125
Pressure - Cutting gas max. pressure exceeded 12.5
Leak - Protective window: max. pressure exceeded 11.875
Protective window cartridge COL missing  11.25
Diffused light - Protective window: max. level exceeded  10.625
Diffused light, protective window COL max. level exceeded  10.00
Humidity: max. level exceeded 9.375
EdgeTec function: malfunction  8.75

 If an error occurs, the system/machine must be stopped immediately (noting the process
condition) and the cause must be checked. In this case, a reference travel procedure must
always be carried out.

Table 4-4 Interface: Current value error (summary)

If more than one error is present at the same time, the current value for the
next will be output once the cause of the previous error has been rectified.

When all errors have been removed, the most recently selected parameter
will be output on the analogue output.

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 4 - 45

4.3 Setting the focal position (motor-controlled, trained personnel only ProCutter Zoom 2.0

4.3 Setting the focal position (motor-controlled, trained personnel only

4.3.1 Assigning a characteristic curve (adjustment range)

Focal position, voltage adjustment

An external analogue signal (0.3 …9.7 V) sets the focal position (‘ANALOG-IN‘).
The software monitors the upper and lower limit positions (which are not
approached in normal operation).
Input scaling depends on the max. adjustment range (+15 / –30 mm).
Setpoint range IMAGE RATIO 1.2…4.0  ±0.15 mm

+
TCP

–
Fig. 4-7 Commissioning: Focal position, voltage adjustment

Scaling Setpoint voltage [V] = focal position [mm] * (-0.2088) + 3.4333

e.g. required focal position +1 mm ≈ setpoint voltage of 3.2244 V

Transferring the focal position via the current interface:

Focal position [mm] = current [mA] * (-2.3936) + 16.4361
e.g. measured current value of 6.4488 mA ≈ focal position of +1 mm

The setpoint value defined by the controller always has the same scaling. If
you change the focal diameter, the previously set focal position will be retained.
If the set focal position is outside the permitted range defined for the image,
the approached focal position will be the same as the focus limit and
'POS.REACHED' will not be set.

Offset adjustment range (focus offset)

The adjustment range is ±1 mm (0 … 100%)

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4 Installation/Commissioning – I/O operation

4.3.2 Moving to the focal position (TCP voltage adjustment)

The reference travel procedure must have been carried out.

The reference travel procedure will be carried out automatically when the unit is
switched on.

The system continuously monitors the focal position.

When the setpoint position has been reached and is within the target value
tolerance range, the 'POS.REACHED' message will be sent.

Moving to the focal position

The required focal position is set by applying analogue voltage to the laser
head's analogue input 'ANALOG-IN' (PIN-11 and PIN-12) and by enabling the digital
input 'AUTOMATIC' (PIN-8) [HIGH] (rising edge).
To acknowledge this position the digital output'POS.REACHED' is set to [LOW] for
at least 50 ms. Positioning will take longer if focal position changes involve
larger adjustment ranges.

To avoid any malfunction:

• The analogue value [V] must be stable for at least 3 ms before selecting the
output value. After selection, it must be stable for at least 5 ms.
• At the same time, the digital input ‘OUTP.SELECT‘ (PIN-5)must be set to [LOW].

We therefore recommend that you update the analogue value first and
activate the controller's digital output during the next machine cycle.

(min. 3 ms)

OUTP.SELECT

ANALOG-IN
(min. 5 ms)
AUTOMATIC
ProCdia-SP

POS.REACHED

(min. 50 ms)
Fig. 4-8 Commissioning: Pulse diagram - Focal position

The digital output 'POS.REACHED' (PIN-10) is reset automatically for a period of

50 ms each time the focal position (target position) is changed – even if the new
focal position is within the setpoint range.
This status signal can then be analysed (handshake).

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4.3 Setting the focal position (motor-controlled, trained personnel only ProCutter Zoom 2.0

Setting the focal diameter

Attention – Image ratio!

The image ratio may only be set or modified if the laser is off (no active laser beam).

The focal size is set by combining the digital inputs 'OUTP.SELECT' and
'AUTOMATIC'.

OUTP.SELECT

(min. 3 ms)

ANALOG-IN

(min. 5 ms)

AUTOMATIC

ProCdia-FOCz
POS.REACHED (min. 50 ms)
(min. 3 ms)

Fig. 4-9 Commissioning: Pulse diagram - Focal diameter

In order to set the required image ratio a selected voltage (see Table 4-5) is
applied to the analogue input. When 'OUTP.SELECT' (= High) the 'AUTOMATIC'
signal is enabled.

Laser head and EdgeTec!

For each image ratio the EdgeTec function can be switched on if the laser head
is equipped with EdgeTec (technology package) ausgerüstet ist.

The positive edge at 'OUTP.SELECT'  accepts the analogue value to select

the analogue output (see Chapter 4.2.2, page 4-42). Then the analogue value
must be changed to match the required image ratio setpoint value (see
Table 4-5, page 4-49). 'OUTP.SELECT' must remain (= High). The positive edge at
'AUTOMATIC'  accepts the image ratio setpoint value.
The analogue value [V] must be stable for at least 3 ms before ‘AUTOMATIC‘ (= High).
Then it must be stable for at least 5 ms.

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4 Installation/Commissioning – I/O operation

The focal diameter and the EdgeTec function (optional) can be set in fixed
image ratio intervals of 1.2, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0.
(Setpoint voltage - accuracy of +/- 0.2 volts):

Setpoint voltage [V] Image Spot size [μm] Focus limit [mm]
100μm fibre 200μm fibre + [mm] – [mm]

1.250
1.2 120 240 +15 -30
1.875 
2.500
1.5 150 300 +15 -30
3.125 
3.750
2.0 200 400 +15 -30
4.375 
5.000
2.5 250 500 +15 -30
5.625 
6.250
3.0 300 600 +15 -30
6.875 
7.500
3.5 350 700 +15 -30
8.125 
Sample output current:
8.750
image ratio 1 : 4.0  17.5 mA 4.0 400 800 +15 -30
 8.75 V x 2 mA/V = 17.5 mA 9.375 
 EdgeTec function is on if the laser head is equipped with EdgeTec (technology package).

Table 4-5 Focal position, focal diameter: Voltage adjustment

The current focal diameter can be read by applying a voltage of 6.875 V to the
analogue input with a rising edge at the 'OUTPUT.SELECT' input. The output
current corresponds to the selected voltage (see the above table and the
example for Table 4-5).

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4.4 Adjusting the laser beam ProCutter Zoom 2.0

4.4 Adjusting the laser beam

Attention – Laser power!

Please note the laser or machine manufacturer's adjustment instructions and
use the sample recommended by him for system setup (commissioning).
Set the laser power recommended by the laser or machine manufacturer.

Prior to commissioning, the laser head must be checked to ensure that it is

firmly connected and does not have any play.

4.4.1 Centring the beam

When centring/adjusting the focusing lens, the system must not be under
pressure and the distance control unit must be switched off.

Attention – Laser beam not adjusted correctly!

Care must be taken when centring the optics. If the laser beam is not adjusted
correctly, parts of the laser head can be destroyed during laser cutting.

Centring elements

A B

1 2 3 SW4

Laser beam position

ProCz20_o4

4
good bad

Fig. 4-10 Commissioning: Laser beam - Beam position, focusing lens

1 Adjusting screw, A 3 Allen key (size 4)

2 Adjusting screw, B 4 Nozzle DE (nozzle electrode)

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4 Installation/Commissioning – I/O operation

The lens is centred using two adjusting screws (1,2).

Adjustment range ±1.5 mm
Tool Allen key (size 4 mm)

If the machine manufacturer does not prescribe a different procedure, we

suggest that you follow the steps described below:

1. Screw in a nozzle with a large nozzle opening.

The nozzle opening should be considerably larger than the laser beam diameter at the
nozzle opening.
Note: If the nozzle is too small for the nozzle opening, the nozzle can be removed.

2. Glue the sample under the nozzle.

Caution laser beam (laser class 4) – Wear laser goggles!

• Avoid radiation to eyes or skin caused by direct or scattered radiation.
• Use laser goggles (in compliance with DIN EN 207) that are designed for the
wavelength of the connected laser.

3. Trigger a low-power laser pulse and judge the penetration in the sample.
The penetration must be round and in the centre of the nozzle opening. If not, the lens
must be centred.

4. Centre and align the lens using the adjusting screws on the laser head.
Attention: The maximum adjustment range is ±1.5 mm.

5. Use a new sample. Trigger a low-power laser pulse and judge the penetration in
the sample again.
The penetration must be round and in the centre of the nozzle opening.
Repeat the procedure from step 2 until the laser beam is in the middle of the nozzle opening.

When the laser beam is in the middle of the nozzle opening, a nozzle with a
smaller opening should be screwed into the sensor insert. Then repeat step 2
until the laser beam is in the middle of the nozzle opening again.

The adjusted laser beam must be in the centre of the nozzle (nozzle with the
correct opening diameter for the cutting process).
To avoid any damage, do not obstruct the laser beam.

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4.4 Adjusting the laser beam ProCutter Zoom 2.0

4.4.2 Setting the focal position

When checking the standoff distance, the system must not be under pressure
and the laser must be switched off.

Adjusting element (analogue voltage - I/O-CAN adapter - CNC/PLC)

I/O CAN adapter SV3

I/O

PIN-11(+) & 12 (-); analogue 0.3 ...9.7 V

PIN-8; set 'AUTOMATIC'
Ccon

Acon

Sp_ProC_ioc
Dcon
I/O
Bcon CNC/PLC

Fig. 4-11 Commissioning: Focal position

Changing the focal position The focal position can be set by an external analogue signal (0.3…9.7 V) and
queried via the I/O interface (see Table 4-2, page 4-42).

Focal position Focal position [mm] see paragraph "Focal position, voltage adjustment", page 4-46
(motor-controlled) TCP0 1 mm below the nozzle tip (nominal focal position)
(View from the outside onto the nozzle tip)

Typically, focusing lenses are manufactured with a maximum nominal focal

length tolerance of ± 1% (according to the manufacturer's specifications). As a
result, the adjustment range can be limited.
The focal position can thus vary depending on the lens. This must be taken into
consideration when carrying out any adjustment (offset potentiometer).
Mechanical manufacturing tolerances, aspect ratios of the optics used and
fibre end tolerances also influence the actual focal position.

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4 Installation/Commissioning – I/O operation

4.4.3 TCP offset correction (focus offset)

Any focal position offset caused by fibre socket tolerances can be corrected
using the focus offset parameter.

Move to the zero position [TCP0] (nozzle position = 1 mm)

1. Use the machine controller (CNC/PLC) to move the laser head to TCP0 and note
down this position.

2. Remove the nozzle (DE) and ceramic part (KT).

For detailed information on how to remove and install the nozzle and ceramic part, please
refer to Chapter 3.3.1, page 3-25.

3. Move to the position noted down for the laser head.

Focal position correction (offset)

If the machine manufacturer does not prescribe a different procedure, we
suggest that you follow the steps described below:

1. Put a sample under the laser head (in the area of the TCP), apply an analogue
voltage (‘ANALOG-IN‘ (+/-)) and approach the lens position by enabling 'AUTOMATIC'
(PIN-8).
The analogue voltage value (voltage adjustment) can be found in the characteristic curve
graph (see Chapter 4.3.1, page 4-46).

Caution laser beam (laser class 4) – Wear laser goggles!

• Avoid radiation to eyes or skin caused by direct or scattered radiation.
• Use laser goggles (in compliance with DIN EN 207) that are designed for the
wavelength of the connected laser.

2. Trigger a (low-power) laser pulse and judge the penetration in the sample.

3. Modify the focus offset to find the smallest penetration.

Change the offset value accordingly.
Attention: The new offset value will only be valid after an new positioning cycle.
To check that the corrected focal position is valid you must transfer the focal position again using the
machine controller (CNC/PLC).
Note: The maximum offset adjustment rangs is -1 mm to +1 mm (0 … 100%).

Tip: The focus offset can be read by the machine controller (CNC/PLC).
Apply a selection voltage of 6.25 V to 'ANALOG-IN' (PIN-11 and PIN-12), enable
'OUTP.SELECT' (PIN-5) and read the current value on 'ANALOG-OUT' (PIN-6).

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4.4 Adjusting the laser beam ProCutter Zoom 2.0

4 - 54 © Precitec GmbH & Co. KG • EN 06/2018 D 238389

5 Maintenance

5 Maintenance

5.1 Safety notes

General safety regulations We assume that you know and observe the following generally accepted
safety regulations:
• VDE Regulations, especially VDE 0100/ 0837
• BGV A1 General regulations
• BGV A3 Electrical systems and equipment
• BGV B2 Laser radiation accident prevention regulations

Personnel requirements Any repair work and any work relating to troubleshooting require special
knowledge and must only be carried out by trained specialist staff.
Specialist staff must be instructed in accordance with the regulations and
safety notes and informed of potentially hazardous situations.
Precitec shall not be liable for any damage caused by not complying with
or having insufficient knowledge about the information contained in the
operating instructions.
Manufacturer's and supplier's regulations must be observed. The prescribed
protective equipment must be used.

Caution – Dangerous electrical voltage!

The system must be switched off and protected against being switched on
again before carrying out any maintenance or repair work on the laser head.

Caution – Danger of crushing!

During all maintenance and repair work, no hands or other body parts should
be in the proximity of the linear drive or under the laser head.

Caution – Laser beam!

The machine must be switched off before carrying out any maintenance or
repair work on the laser head. During commissioning the machine may operate
in laser class 4:
• Avoid radiation to eyes or skin caused by direct or scattered radiation.
• Do not look directly at the laser beam even using optical instruments.
• Use laser goggles complying with DIN EN 207 and BGV B2 that are
designed for the wavelength of the connected laser.

Attention – Sensitive optics!

Dust and firmly adhering dirt can lead to burn marks on the optics or damage
them. Therefore, only touch the non-sensitive parts on the optical components.

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 5 - 55

5.2 Maintenance work (summary) ProCutter Zoom 2.0

5.2 Maintenance work (summary)

Precitec GmbH & Co. KG offers expert maintenance and repair services for its
products.

Attention – Unsuitable spare parts!

Unsuitable spare parts can damage or destroy components. Only use the
spare parts supplied by Precitec or original spare parts.

Care/ cleaning The following work must be carried out regularly:

• Check that the media and cable connections, the head fixing, the cartridges
and the nozzle (nozzle electrode) are connected firmly and do not have any play.
• Remove any contamination.
Checking pressure tightness The laser head must be checked for leaks regularly. If necessary, the gaskets
and seals (wearing parts) must be replaced.

If tightness cannot be achieved by doing this, the laser head must be checked
by the manufacturer.

Wearing parts The parts below must be maintained and replaced if worn:
• Nozzle, ceramic part
• Protective window, axial gasket (protective window cartridge)

Electrical contacts To ensure that the sensor system works reliably, the electrical contact
surfaces on the parts below must be clean:
• Nozzle and ceramic part
• Sensor insert and BNC connection

Corrosion in the To avoid any corrosion the instructions and maintenance intervals prescribed
water cooling circuit by the machine manufacturer, laser source manufacturer or cooling unit
manufacturer must be observed.

For pure stainless steel circuits use only deionised water with a conductivity
value prescribed by the laser manufacturer.

To protect the water cooling circuit (stainless steel) against electro-chemical

corrosion, copper or brass connections must not be used. Only stainless steel
or plastic connections can be used.
To keep the laser head working reliably, Precitec recommends that the
cooling water is checked for microbiological contamination every 6 months
(microbiological contamination <100cfu/ml, e.g. VARIDOS bacterial test kit from Nalco,
www.nalco.com).
If, as a result of such tests, test parameter limits are exceeded, the cooling
water must be replaced and the water cooling circuit cleaned or rinsed.

Warning!
Any protective or safety equipment removed must be fitted again prior to the
commissioning or setting up of the laser head - then checked to ensure it is
working properly.

5 - 56 © Precitec GmbH & Co. KG • EN 06/2018 D 238389

5 Maintenance

5.3 Maintenance recommendations

Care/ cleaning
591-045-wi /ProCz20_oMain

Check Measure

Replace parts Standoff distance

Lens adjustment Maintenance/ cleaning intervals

Fig. 5-1 Maintenance: Maintenance recommendations

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 5 - 57

5.4 Replacing the ceramic part and nozzle (sensor area) ProCutter Zoom 2.0

5.4 Replacing the ceramic part and nozzle (sensor area)

Precitec recommends cleaning the laser head carefully before carrying out any
service or replacement work.

ProCz20_oDE
3

Fig. 5-2 Maintenance: Ceramic part, nozzle

1 Sensor insert SE 3 Nut MU

2 Ceramic part KT 4 Nozzle DE (nozzle electrode)

Replacing the ceramic part

 Clean the ceramic part (2), replace if necessary.

Note: When replacing the ceramic part (KT), the supplied O-ring (Ø26.00 x 1.50 Viton)
must be replaced too.

Replacing the nozzle

The nozzle (4) and the nut (3) must only be tightened by hand (do not use any
tools). Otherwise the ceramic part could be damaged. In addition to this, make
sure that the contact surfaces on these parts are clean.
An adjustable hook spanner size 40/42 can be used for easy removal.

If the nozzle is damaged by the laser beam or after a collision, it must be

replaced.
Screw the nozzle into the sensor insert by hand.

For detailed information on the spare parts that can be supplied, please refer to
Chapter 7.2 "Parts available", page 7-70.

Warning!
Any protective or safety equipment removed must be fitted again prior to the
commissioning or setting up of the laser head - then checked to ensure it is
working properly.

5 - 58 © Precitec GmbH & Co. KG • EN 06/2018 D 238389

5 Maintenance

5.5 Care and maintenance of the protective window cartridge

The components which are fitted into the beam path of the laser head must
be handled carefully.

Attention – Clean workplace!

Only carry out any maintenance and repair work on the laser head in a clean
workplace.

ProCz20_oSkas
Fig. 5-3 Maintenance: Protective window cartridge

1 Cartridge (protective window)

Removing and installing the cartridge

You should have a replacement cartridge ready at hand before you start
removing the old one.
If no second protective window cartridge is available, we recommend that you
order one from Precitec (see Appendix) or immediately affix a suitable protective
film over the aperture to cover it (see MOCAP's product range for instance).

1. Remove the cartridge which has a soiled or defective protective window and put
it on a clean pad.
Note: The protective window must be replaced in a clean workplace (see Chapter 5.5.1,
page 5-60).

2. Remove any protective film from the cartridge (replacement cartridge), insert the
cartridge (with protective window) into the laser head until it locks into place.
Note the orientation of the protective window cartridge when doing this. A wrongly
inserted cartridge will not click into place.

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 5 - 59

5.5 Care and maintenance of the protective window cartridge ProCutter Zoom 2.0

5.5.1 Replacing the protective window

Attention – Clean workplace!

Only carry out any maintenance and replacement work on the protective
window in a clean workplace.

ProCz20_oSglas
Fig. 5-4 Maintenance: Protective window - Protective window cartridge

1 Clamping ring 2 Protective window

Removing the protective window

1. Put the cartridge on a clean pad.

2. Carefully lift off the clamping ring (1) from the protective window frame (cartridge)
and remove the protective window (2).

Cleaning the protective window

 Clean the protective window (2) using a cleaning pad soaked in methanol. Then
blow away any dirt with clean air (bellows blower).
Repeat until it is clean.

If the protective window can no longer be cleaned or if it is damaged, it must be

replaced.

Installing the protective window

1. Carefully insert the clean (new) protective window into the protective window
frame (cartridge).
2. Insert the clamping ring (1) and protective window.
Note: Always keep the cartridge (with protective window installed) in a horizontal position
when carrying it.

You will find the order number of the protective window in the Table 7-4
"Appendix: Parts available", page 7-70.

5 - 60 © Precitec GmbH & Co. KG • EN 06/2018 D 238389

5 Maintenance

5.5.2 Checking the axial gasket

Attention – Clean workplace!

Only carry out any maintenance and replacement work on the cartridge in a
clean workplace.
Do not allow dust and dirt to get into the laser head. Dust and firmly adhering
dirt can damage or destroy the components.

ProCz20_oCdich
Fig. 5-5 Maintenance: Sealing ring - Protective window cartridge

1 Locking ring 2 Sealing ring DF (axial gasket)

To keep the the laser head working reliably in normal operation Precitec
recommends that you check the sealing ring (2) for wear once a year.
Worn or damaged seals must be replaced.

 Regularly check the cartridge for leaks.

Damaged gaskets or seals must be replaced.
Click the new sealing ring into the cartridge (after removal of the damaged one).

Caution – Ambient temperature!

Different materials such as aluminium, steel and plastic have different thermal
expansion coefficients. If the ambient temperature drops below 10 °C, you
must check that the sealing ring is positioned correctly, especially when
replacing the cartridge.

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 5 - 61

5.6 Maintaining the sensor insert (SE) ProCutter Zoom 2.0

5.6 Maintaining the sensor insert (SE)

Attention – Clean workplace!

Only carry out any maintenance and repair work on the laser head in a clean
workplace.
Do not allow dust and dirt to get into the laser head. Dust and firmly adhering
dirt can damage or destroy the components.

4 x M6x20 (SW4) (6 Nm)

2
4 x M3x5 (SW5.5)

ProCz20_oSE
1

Fig. 5-6 Maintenance: Sensor insert

1 Nozzle DE, ceramic part KT 3 Sensor insert SE

2 Spatter protection plate PP

Removing the sensor insert

1. Undo the screws (2x hexagonal screws SW5.5) and remove the spatter protection plate (2).

2. Undo the countersunk screws (4x Allen screws SW4) and remove the sensor insert (3).

Installing the sensor insert

3. Attach the sensor insert (3) to the connection head and tighten the four
countersunk screws (Allen screws SW4) with a torque of 6 Nm.
Note the locating pins on the connection head when doing this – they must engage into the sensor
insert. The sensor insert must not get stuck!
Attention: If the O-ring on the sensor insert is positioned wrongly or defective, the laser head may
leak.

4. Screw the spatter protection plate (2) on firmly using the four screws (4 x hexagonal
screws M4).

We recommend that you install a new ceramic part and O-ring (ø26.00 x 1.50 Viton)
when replacing the sensor insert (see Fig. 5-2, page 5-58).

5 - 62 © Precitec GmbH & Co. KG • EN 06/2018 D 238389

6 Error analysis and diagnostics

6 Error analysis and diagnostics

6.1 Safety notes

Any repair work and any work relating to troubleshooting require special
knowledge and must only be carried out by trained specialist staff. Precitec
shall not be liable for any damage caused by not complying with or having
insufficient knowledge about the information contained in the operating
instructions.
Manufacturer's and supplier's regulations must be observed. The prescribed
protective equipment must be used.

Caution – Dangerous electrical voltage!

The system must be switched off and protected against being switched on
again before carrying out any maintenance or repair work on the laser head.

Caution – Laser beam!

The machine must be switched off before carrying out any maintenance or
repair work on the laser head. During commissioning the machine may operate
in laser class 4:
• Avoid radiation to eyes or skin caused by direct or scattered radiation.
• Do not look directly at the laser beam even using optical instruments.
• Use laser goggles complying with DIN EN 207 and BGV B2 that are
designed for the wavelength of the connected laser.

Attention – Unsuitable spare parts!

Only use the spare parts supplied by Precitec or original spare parts.

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 6 - 63

6.2 Malfunctions ProCutter Zoom 2.0

6.2 Malfunctions

6.2.1 Electrical malfunctions

Status indicator
(4 x LED)

1 2 3 4

Malfunction Cause Action to be taken

All LEDs OFF, No power supply – Check the F2 fuse on the

laser head not operational (PIN-1, -2 / PIN-3, -4) communication adapter (I/O interface)
– Check the power pack and wiring
LEDs 1, 2, 3, 4 = ORANGE (malfunction) Internal hardware error – Send the laser head back for repair
LED 1 and LED 3 = RED , Lasermatic® analysing electronics (EG) – Perform Res-PBus on the EG (knob)
LED 2 and LED 4 = OFF , not detected – Check the flat cable between the
communication adapter (I/O interface)
and EG

LED 1 … LED 4 = light RED Firmware is being updated – Do not interrupt the laser head power
alternately (firmware update) supply

6 - 64 © Precitec GmbH & Co. KG • EN 06/2018 D 238389

6 Error analysis and diagnostics

Malfunction Cause Action to be taken

LED 1 - focal position

always OFF Focal position setpoint – Check the focal position setpoint
(does NOT light up) <0.3 V or > 9.7 V (also depends on the image ratio)
RED (drive malfunction) Drive overload, – Carry out reference travel. If this does
ANALOG-OUT (PIN-6 = 17.5 mA) drive unit short circuit not correct the error, send the laser
head back for repair.
RED (drive malfunction) No power supply (PIN 1, 2) – Check the F1 fuse on the
ANALOG-OUT (PIN-6 = 16.875 mA) communication adapter (I/O interface)
– Check the power pack and wiring
RED (drive malfunction) Power supply (PIN-1, -2) too low – Adjust the power supply unit's current
ANALOG-OUT (PIN-6 = 16.25 mA) limitation
– Check the power supply unit's rating
RED (drive malfunction) Reference travel not carried out/aborted – Carry out reference travel. If this does
ANALOG-OUT (PIN-6 = 15.625 mA) (REF.TRAVEL signal must remain high during not correct the error, send the laser
reference travel), drive cannot move to the head back for repair.
required position
flashes RED [1 x per second] EdgeTec malfunction – Carry out reference travel. If this does
not correct the error, send the laser
head back for repair.

LED 2 - temperature/humidity
flashes RED [3 x per second] Collimating lens: max. temperature – Temperature threshold (lens) too low
ANALOG-OUT (PIN-6 = 15.00 mA) exceeded – Laser power too high
– Optics damaged
flashes RED [1 x per second] Focusing lens: max. temperature – Temperature threshold (lens) too low
ANALOG-OUT (PIN-6 = 14.375 mA) exceeded – Laser power too high
– Optics damaged
flashes RED [10 x per second] Humidity: limit value exceeded – Humidity level too low
ANALOG-OUT (PIN-6 = 9.375 mA) – Faulty seal
RED Laser head: max. temperature exceeded – Head temperature threshold too low
ANALOG-OUT (PIN-6 = 13.75 mA) – Laser power too high
– Ambient temperature too high
– Cooling circuit interrupted

LED 3 - pressure (pressure control)

flashes RED [1 x per second] Cutting gas pressure: max. pressure – Pressure threshold too low
ANALOG-OUT (PIN-6 = 12.5 mA) exceeded – Check the gas supply
RED Leak – Protective window: – Pressure threshold too low
ANALOG-OUT (PIN-6 = 11.875 mA) max. pressure exceeded – Check the gas supply
– Faulty sealing ring (protective window cartridge)

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 6 - 65

6.2 Malfunctions ProCutter Zoom 2.0

Malfunction Cause Action to be taken

LED 4 - protective window/diffused light

flashes RED [10 x per second] Diffused light - Beam path – Diffused light level too low
ANALOG-OUT (PIN-6 = 13.125 mA)
- Strong backreflection – Check the optical components in the
- Optics defective Flow Box.
flashes RED [10 x per second] Diffused light - Protective window: – Diffused light level too low
ANALOG-OUT (PIN-6 = 10.625 mA)
- Protective window contaminated – Replace the protective window
flashes RED [10 x per second] Diffused light - Protective window COL – Diffused light level too low
ANALOG-OUT (PIN-6 = 10.00 mA)
Protective window COLcontaminated – Replace the protective window COL
flashes RED [3 x per second] Protective window cartridge – Install the protective window cartridge
ANALOG-OUT (PIN-6 = 19.375 mA) missing or not screwed in firmly enough correctly

flashes RED [1 x per second] Protective window missing – Insert the protective window
ANALOG-OUT (PIN-6 = 18.75 mA)
RED Protective window: max. temperature – Protective window is contaminated,
ANALOG-OUT (PIN-6 = 18.125 mA) exceeded clean or replace

Malfunction Cause Action to be taken

Distance display is wrong Sensor cable damaged or loose plug-in – Replace the sensor cable or fix the
and changes depending connection plug-in connection
on the position of the machine

Minor standoff distance – Sensor temperature drift Repeat reference point/ two point
changes – Worn nozzle calibration, incl. [NozzLost]
– Contamination
Measuring distance of distance Ceramic part contaminated/ wet – Clean and dry off the ceramic part
sensor system too small, large – Check the cooling gas (nozzle)
laser head distance when (observe the gas quality specifications, see
approaching the workpiece Table 7.1.2, page 7-68)

Table 6-1 Error analysis: Electrical malfunctions

Electrical malfunctions
For detailed information on how to troubleshoot electrical malfunctions of the
Lasermatic® analysing electronics, please refer to the separate documentation.

6 - 66 © Precitec GmbH & Co. KG • EN 06/2018 D 238389

6 Error analysis and diagnostics

6.2.2 Mechanical malfunctions

Malfunction Cause Action to be taken

Cutting gas pressure does not Cutting gas hose is not connected – Connect the cutting gas hose
build up properly properly (see Fig. 3-10, page 3-34)
Protective window cartridge loose or – Replace the protective window
protective window damaged cartridge or push in until it clicks into
place (see Fig. 5-3, page 5-59)
Sealing ring on the protective window – Replace the worn seal
cartridge leaks (see Fig. 5-5, page 5-61)
Seals between connection head and – Replace the worn seal
sensor insert leak (see Fig. 5-2, page 5-58)
Seals between sensor insert and
extension adapter leak (F250)
Seals between ceramic part and
sensor insert leak
Cutting gas escapes somewhere else – Send the laser head back for repair
Nozzle gets too hot Nozzle cooling gas hose is not – Connect the gas hose properly
connected properly (see Fig. 3-11, page 3-35)
Cutting gas escapes somewhere else – Send the laser head back for repair
Laser beam obstructed (bad laser beam – Check the laser beam position
position) (see Fig. 4-10, page 4-50)
Gases and liquids do not reach Gas and liquid hoses are not – Connect the gas and liquid hoses
the cutting point connected properly properly (see Chapter 3.4, page 3-34)
Seals between connection head and – Replace the gasket set
sensor insert leak (see Fig. 5-2, page 5-58)
Gases and liquids escape at other – Send the laser head back for repair
places
Axial focal position adjustment Thread on lens centring device is – Send the laser head back for repair
device difficult to turn damaged or dirty (see Fig. 4-2, page 4-36)
Lens centring device difficult Thread on lens centring device is – Send the laser head back for repair
to turn damaged or dirty (see Fig. 4-10, page 4-50)
Focal position cannot be found Wrong focal length of the focusing – Replace the laser head
in the adjustment range of the lens or focusing lens damaged – Send the laser head back for repair
vertical adjustment device
Bad cut • Focus diameter too large – Send the laser head back for repair
• Focusing lens not installed correctly
into the laser head
Bad focal position/ laser beam position – Check the focal position/ laser beam
position, remove the error if neces-
sary. (see Chapter 4.4, page 4-50)
Protective window dirty – Clean the protective window and
replace if necessary
(see Fig. 5-4, page 5-60)
Alloy affects results (workpiece) – Adapt the cutting parameters

Table 6-2 Error analysis: Mechanical malfunctions

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 6 - 67

7.1 Basic technical information ProCutter Zoom 2.0

7 Appendix

7.1 Basic technical information

7.1.1 Conversion of Units

1.0 mm = 0.03937"
25.4 mm = 1.0"
1.0 kg = 2.20 lb (pounds)
1.0 bar = 0.1 MPa
= 14.50 psi (pounds/square inch)
= 0.99 atm (atmosphere)
1.0 l (litre) = 1.06 qt (quarts US)
= 0.88 qt (quarts Imp)
0.0284 l = 1.0 fl oz (fluid ounce)

Table 7-1 Appendix: Units - Conversion table

7.1.2 Compressed air quality (ISO 8573-1)

Class Solid particles (residual dust) Water (pressure dew point) Oil (aerosol liquid, vapour)
Max. concentration [mg/m3] Max. size [µm] [°C] [mg/m3]

1 0.1 0.1 –70 0.01

2 1 1 –40 0.1
3 5 5 –20 1
4 8 15 +3 5
5 10 40 +7 25
6 -- -- +10 --

Table 7-2 Appendix: Compressed air quality - Purity classes

7.1.3 Cooling water - Dew point temperature

Air temp. Dew point temperature [°C] (relative humidity)

°C 20% 25% 30% 35% 40% 45% 50% 55% 60% 65% 70% 75% 80%
15 -2 0 2 4 5 6 7 9 10 11 12
20 2 4 6 8 10 11 12 14 15 16 17
25 1 4 7 9 11 13 14 16 17 18 19 20 21
30 5 8 11 13 15 17 19 20 22 23 24 25 26
35 9 12 15 17 20 21 23 25 26 28 29 30 31
40 13 17 19 22 24 26 28 30 31 32 34 35 36
45 17 21 24 26 28 30 32 34 36 37 38 40 41
50 21 25 28 30 33 35 37 39 40 42 43 45 46
55 25 29 32 35 37 39 41 43 45 46 48 49 51

Table 7-3 Appendix: Cooling water - Dew point temperature

7 - 68 © Precitec GmbH & Co. KG • EN 06/2018 D 238389

7 Appendix

7.1.4 Running cables (notes)

Follow the instructions below to set up the system and to find the cause for
any errors.
The basic rules below must be observed when fitting the cables.

When fitting cables, all movements relating to the specific application must be
observed (max. displacement, max. rotation angle).
Avoid extreme robot hand rotation when teaching a process path.

Avoid any strain on cables and plug-in connections.

Cables must not be bent below the minimum bending radius specified in the
technical data sheet.

Cables must not be twisted in such a way that the maximum angle of twist
specified in the technical data sheet is exceeded.

Cables where no angle of twist is indicated must not be twisted.

Wind cables around rotating parts in such a way that the prescribed minimum
and maximum bending radii are observed and cables are not twisted.

Attention – Cables!
Use only original Precitec cables.
Unsuitable or wrongly assembled cables can have a negative effect on sensor
system functionality.
Not observing these notes may result in cables being destroyed or undesired
functions of the units connected to them.

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 7 - 69

7.2 Parts available ProCutter Zoom 2.0

7.2 Parts available

Name Designation Number

Parts available

Protective window cartridge (complete) SG Kassette ProCutter 2.0 P 0595 – 89009

Protective window (OG) OG Y D37 d7 P 0595 – 58601
Sealing ring DF (axial gasket) ZM ProCutter DF P 0595 – 59131
Clamping ring (protective window) ZM ProCutter WK OG PR P 0595 – 73925
Spatter protection plate (PP) ZM ProCutter 2.0 P 0595 – 88832
Sensor insert (SE) SE ProCutter 2.0 P 0595 – 88831

Ceramic part (KT) KT B2" CON P 0571 – 1051 – 00001

Nut (MU) MU HP PLUS P 0591 – 21232

Nozzles (DE) - (nozzle electrodes) see the next page

Auxiliary tool (offset potentiometer) WH1090 P 0001 – 090 – 00001

Optics Service Case ZO BOX CLEAN II P 0001 – 000 – Q0002
I/O CAN adapter ZE I/O ProCutter P 0595 – 62407
Control cable (19-pin) KC LD30C 20m gw ext P 0660 – 185 – 2000

Documentation

Schneidkopf / Cutting head

ProCutter Zoom 2.0 - CD TD ProCutter Zoom 2.0 - [CD] P 0595 – 92389

Table 7-4 Appendix: Parts available

7 - 70 © Precitec GmbH & Co. KG • EN 06/2018 D 238389

7 Appendix

Nozzle electrodes

Name Designation Number

Nozzles available

Nozzles (DE) - (nozzle electrodes) DE HP1.5" 0.8 P 0591 – 569 – 00008

DE HP1.5" 1.0 P 0591 – 561 – 00010
DE HP1.5" 1.2 P 0591 – 562 – 00012
DE HP1.5" 1.5 P 0591 – 563 – 00015
DE HP1.5" 1.8 P 0591 – 564 – 00018
DE HP1.5" 2.0 P 0591 – 565 – 00020
DE HP1.5" 2.5 P 0591 – 566 – 00025
DE HP1.5" 3.0 P 0591 – 568 – 00030

DE HP1.5" 0.8 CON P 0591 – 673 – 00008

DE HP1.5" 1.0 CON P 0591 – 571 – 00010
DE HP1.5" 1.2 CON P 0591 – 572 – 00012
DE HP1.5" 1.5 CON P 0591 – 573 – 00015
DE HP1.5" 1.8 CON P 0591 – 574 – 00018
DE HP1.5" 2.0 CON P 0591 – 575 – 00020
DE HP1.5" 2.5 CON P 0591 – 576 – 00025
DE HP1.5" 3.0 CON P 0591 – 577 – 00030
DE HP1.5" 4.0 CON P 0591 – 578 – 00040
DE HP1.5" 5.0 CON P 0591 – 579 – 00050

DE HP1.5" 1.0 CON DD P 0591 – 002 – 00010

DE HP1.5" 1.2 CON DD P 0591 – 002 – 00012
DE HP1.5" 1.5 CON DD P 0591 – 002 – 00015
DE HP1.5" 1.8 CON DD P 0591 – 002 – 00018
DE HP1.5" 2.0 CON DD P 0591 – 002 – 00020
DE HP1.5" 2.3 CON DD P 0591 – 002 – 00023
DE HP1.5" 2.5 CON DD P 0591 – 002 – 00025
DE HP1.5" 3.0 CON DD P 0591 – 002 – 00030
DE HP1.5" 3.5 CON DD P 0591 – 002 – 00035
DE HP1.5" 4.0 CON DD P 0591 – 002 – 00040
DE HP1.5" 5.0 CON DD P 0591 002 – 00050

Nozzle kit (Kit DE) - 4 x [25 per kit] Kit DE HP1.5" 0.8 P 0591 – 569 – Q0008
Kit DE HP1.5" 1.0 P 0591 – 561 – Q0010
Kit DE HP1.5" 1.2 P 0591 – 562 – Q0012
Kit DE HP1.5" 3.0 P 0591 – 568 – Q0030

Set DE HP1.5" 3.0 CON P 0591 – 577 – Q0030

Set DE HP1.5" 4.0 CON P 0591 – 578 – Q0040
Set DE HP1.5" 5.0 CON P 0591 – 579 – Q0050
Set DE HP1.5" 1,0 CON DD P 0591 – 002 – Q0010
Set DE HP1.5" 1,2 CON DD P 0591 – 002 – Q0012
Set DE HP1.5" 1,5 CON DD P 0591 – 002 – Q0015
Set DE HP1.5" 1,8 CON DD P 0591 – 002 – Q0018
Set DE HP1.5" 2,0 CON DD P 0591 – 002 – Q0020
Set DE HP1.5" 2,3 CON DD P 0591 – 002 – Q0023
Set DE HP1.5" 2,5 CON DD P 0591 – 002 – Q0025
Set DE HP1.5" 3,0 CON DD P 0591 – 002 – Q0030
Set DE HP1.5" 3,5 CON DD P 0591 – 002 – Q0035
Set DE HP1.5" 4,0 CON DD P 0591 – 002 – Q0040
Set DE HP1.5" 5,0 CON DD P 0591 – 002 – Q0050

Düsen (DE ET) DE PC ET 7.5/1.9 P 0595 – 86079

for versions with EdgeTec functionality only DE PC ET 4.0 P 0595 – 75015
DE PC ET 7.5 P 0595 – 74998

Table 7-5 Appendix: Nozzles available

D 238389 © Precitec GmbH & Co. KG • EN 06/2018 7 - 71

7.2 Parts available ProCutter Zoom 2.0

7 - 72 © Precitec GmbH & Co. KG • EN 06/2018 D 238389

© Precitec GmbH & Co. KG
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