z-laser ZX Series User manual

ADVANCED INFORMATION
Laser Operator’s Manual
ZX

Product
ZX
Date:
2018.09.19
Page:
2 of 62
Z-Laser Optoelektronik GmbH
Merzhauser Str. 134
D-79100 Freiburg
Tel.: [phone]
Fax: [phone]
Operation manual
Document-ID: UI-ZL-140011-0.9-2018-09-19
0.
9
Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
Revision
Date
Editor
Changes
0.1
16/05
/
25
CSCH
Initial Version
0.2
17/06/23
CSCH
Software manual
merged
0.3
17/06/30
AS
Chapter “Create a serial connection” added
0.4
17/07/19
CSCH
General amendments
0.5
17
/08/19
CSCH
General amendments
0.6
AS
Corrected CMD ID of
SET_POWER_VALUE_IN_PERC
0.7
17/11/20
CSCH
General amendments
0.8
18/04/12
CSCH
Chapter
12
Declaration of Conformity
updated
0.9
10/09/18
MTH
Chap.
3: more details
, CMD
-
Version 0.3, Chap.5: Z
-
Remote 2.0
,
added Modulation Frequency to specs
Notice
Contents in this technical document can be changed without any notice due to the product
modification. In the absence of confirmation by device specification sheets, Z-LASER takes no
responsibility for any defects that may occur in equipment using any Z-LASER devices.

Product
ZX
Date:
2018.09.19
Page:
3 of 62
Z-Laser Optoelektronik GmbH
Merzhauser Str. 134
D-79100 Freiburg
Tel.: [phone]
Fax: [phone]
Operation manual
Document-ID: UI-ZL-140011-0.9-2018-09-19
0.
9
Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
Table of content
1 Introduction ................................................................................................................ 6
About this Document ............................................................................................................ 6
Benefits of ZX Laser ............................................................................................................... 6
ZX product family at a glance ................................................................................................ 7
Upon Receiving the ZX-module ............................................................................................. 8
Handling of the product ........................................................................................................ 9
Operation requirements and specifications.......................................................................... 9
2 Laser Safety ............................................................................................................... 11
3 Operating the laser module ....................................................................................... 15
Electrical interfaces / Pinning .............................................................................................. 16
Power supply ....................................................................................................................... 18
Focus adjustment ................................................................................................................ 18
Serial Interface .................................................................................................................... 19
3.4.1 UART Interface .................................................................................................................... 19
3.4.2 TWI Interface ....................................................................................................................... 20
3.4.3 Create a serial connection ................................................................................................... 22
3.4.4 Command Overview ............................................................................................................ 24
3.4.5 System Status Byte .............................................................................................................. 25
3.4.6 List of read telegrams .......................................................................................................... 26
3.4.7 List of write telegrams ......................................................................................................... 33
3.4.8 Communication Procedures ................................................................................................ 36
How to control the laser ..................................................................................................... 37
3.5.1 Static laser output power via TWI or UART ......................................................................... 37
LED status indication ........................................................................................................... 38
4 System Safety functions ............................................................................................. 40
Diagnosis and security functions ......................................................................................... 40
5 Using the Z-Remote Software to operate the laser module ......................................... 42
Introduction ........................................................................................................................ 42
Supported Operating Systems ............................................................................................ 42
Installation ........................................................................................................................... 42
Start Z-Remote .................................................................................................................... 44
Control elements of remote section ................................................................................... 46
5.5.1 Interface .............................................................................................................................. 46
5.5.2 Device Control ..................................................................................................................... 46
5.5.3 Address Control ................................................................................................................... 46
5.5.4 Connect Button ................................................................................................................... 47
5.5.5 Optical Power Control ......................................................................................................... 47
5.5.6 Laser on Button ................................................................................................................... 47
5.5.7 Quit Button .......................................................................................................................... 47

Product
ZX
Date:
2018.09.19
Page:
4 of 62
Z-Laser Optoelektronik GmbH
Merzhauser Str. 134
D-79100 Freiburg
Tel.: [phone]
Fax: [phone]
Operation manual
Document-ID: UI-ZL-140011-0.9-2018-09-19
0.
9
Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
Dashboard Tab .................................................................................................................... 47
5.6.1 Wavelength Indicator .......................................................................................................... 48
5.6.2 Popt@100% Indicator ......................................................................................................... 48
5.6.3 Item Number Indicator ........................................................................................................ 48
5.6.4 Serial Number Indicator ...................................................................................................... 48
5.6.5 Firmware Vers. Indicator ..................................................................................................... 48
5.6.6 HW Vers. Indicator .............................................................................................................. 48
Lifetime Section ................................................................................................................... 48
5.7.1 Weighted Lifetime Indicator ............................................................................................... 48
5.7.2 Lifetime Laser Diode Indicator ............................................................................................ 49
5.7.3 Diode Temperature Indicator .............................................................................................. 49
5.7.4 Lifetime Related Reliability Indicator .................................................................................. 49
Modulation Section ............................................................................................................. 49
5.8.1 Modulation Indicator .......................................................................................................... 49
5.8.2 Analog Modulation Button .................................................................................................. 49
5.8.3 Digital Modulation ............................................................................................................... 49
Configuration Mode Select Section ..................................................................................... 50
5.9.1 Configuration Modes Select Control ................................................................................... 50
5.9.2 Configuration Mode Description ......................................................................................... 50
5.9.3 Set Selected To Default Button ........................................................................................... 50
Communication Log Window .............................................................................................. 50
Command Wizard Tab ......................................................................................................... 51
5.11.1 Command Select Box........................................................................................................... 51
5.11.2 Search Button ...................................................................................................................... 51
5.11.3 Command Description Box .................................................................................................. 51
5.11.4 Send Data Bytes .................................................................................................................. 52
5.11.5 Byte Descriptions (Send Section) ........................................................................................ 52
5.11.6 Select Buttons (Send Section) ............................................................................................. 52
5.11.7 Multi Slider .......................................................................................................................... 52
5.11.8 Send Button ......................................................................................................................... 52
5.11.9 Clear Cmd Button ................................................................................................................ 53
5.11.10 Error Indicator ..................................................................................................................... 53
5.11.11 Warning Indicator ............................................................................................................... 53
5.11.12 Error/Warning Description .................................................................................................. 53
5.11.13 Receive Data Bytes (Receive Section) ................................................................................. 53
5.11.14 Byte Descriptions (Receive Section) .................................................................................... 53
5.11.15 Select Buttons ..................................................................................................................... 53
ZX-Tracking Tab ................................................................................................................... 54
5.12.1 Start Button (laser diode current section) .......................................................................... 54
5.12.2 Laser Diode Current Diagram .............................................................................................. 54
5.12.3 Sample Time Controls ......................................................................................................... 54
5.12.4 Start Button (temperature section) .................................................................................... 54
5.12.5 Laser Diode Temperature Diagram ..................................................................................... 55
6 Drawings ................................................................................................................... 56
ZX20 (fixed focus) ................................................................................................................ 56

Product
ZX
Date:
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Page:
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Z-Laser Optoelektronik GmbH
Merzhauser Str. 134
D-79100 Freiburg
Tel.: [phone]
Fax: [phone]
Operation manual
Document-ID: UI-ZL-140011-0.9-2018-09-19
0.
9
Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
ZX20-F (focusable) ............................................................................................................... 56
ZXS20 (separated electronics, fixed focus) ......................................................................... 57
ZXS20-F (separated electronics, focusable) ........................................................................ 57
7 Product Labelling ....................................................................................................... 58
8 Product Warranty ...................................................................................................... 59
9 Service ...................................................................................................................... 59
10 In the case of a damage ............................................................................................. 59
11 Disposal .................................................................................................................... 60
12 Declaration of Conformity .......................................................................................... 61
13 Glossary .................................................................................................................... 62

Product
ZX
Date:
2018.09.19
Page:
6 of 62
Z-Laser Optoelektronik GmbH
Merzhauser Str. 134
D-79100 Freiburg
Tel.: [phone]
Fax: [phone]
Operation manual
Document-ID: UI-ZL-140011-0.9-2018-09-19
0.
9
Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
1 Introduction
The ZX is a customizable laser module especially designed for high demanding industrial
applications, such as inspection, machine vision, sensing, medical technology, food industry
or pinpoint laser positioning tasks. Its modular platform and compact design allow for the
integration in a broad variety of industrial working environments.
About this Document
This is the user manual of the ZX laser module. It provides all necessary information to safely
operate the laser system and to get full access to all available features of the product. Please
carefully read the following instructions to learn how to use and operate the ZX laser module
as intended.
CAUTION NOTE
Before initial commissioning please read the entire manual. Operating
the product in a manner not specified in this document may lead to
safety hazards and will void the product warranty.
Some descriptions of the ZX product may not be clear enough or may suffer from a lack of
details. Both, the description and the product itself keep evolving based on customer feedback
and ongoing product improvement.
Benefits of ZX Laser
 Modular platform – Choose your appropriate module:
o Outer diameter: Ø20mm vs. Ø10mm
o Wavelength: 405 nm…900 nm (other wavelengths upon request)
o Output power: < 1mW…250mW
o Projection I: line homogeneous, line Gaussian, DOE, dot, etc.
o Projection II: ultra-sharp line vs. extended depth of focus
o Electronics: integrated vs. separated
o Connector: 5-pin M12-connector vs. cable
 reproducible projection properties due to automated production processes
 Industrial-rated stainless steel housing
 Ingress protection IP67
 externally focusable – no tools required
 integrated monitoring and modulation features

Product
ZX
Date:
2018.09.19
Page:
7 of 62
Z-Laser Optoelektronik GmbH
Merzhauser Str. 134
D-79100 Freiburg
Tel.: [phone]
Fax: [phone]
Operation manual
Document-ID: UI-ZL-140011-0.9-2018-09-19
0.
9
Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
ZX product family at a glance
ZX20
ZX10
ZXS
Housing
Ø
20
mm
laser driver integrated
Ø
10
mm
laser driver integrated
Ø
20
mm /
Ø1
0
mm
(head)
Ø17 mm (laser driver)
W
avelength
400…900
nm
600…900
nm
400…900
nm
O
utput power
1…250
mW
1…100
mW
1…250
mW
(reduced @ ZXS10)
Projection
line
(Gaussian,
homogeneous), DOE,
dot (circular, elliptical)
line
(Gaussian,
homogeneous), DOE,
dot (circular, elliptical)
line
(Gaussian,
homogeneous), DOE,
dot (circular, elliptical)
Focusability
optional (
-
F)
none
optional (
-
F)
Modulation
Frequency
U
p
to 300 kHz
(depends on wavelength)
U
p
to
1
M
Hz
(depends on wavelength)
U
p
to
1
0 kHz
(depends on wavelength)
I
ngress
protection
IP
67
IP
50
IP
67 (for ZXS20)
IP 50 (for ZXS10)
Power s
upply
5
-
30
VDC (600…900
nm
)
9-30 VDC (400…520 nm)
3,
5
…5
,5
VDC
5
-
30 VDC (600…900
nm
)
9-30 VDC (400…520 nm)
Electrical
interface
M12, 5
pin
(refer to chapter 3.1)
Cable with o
pen leads,
2pin
Cable with o
pen leads, 6
pin
(refer to chapter 3.1)
C
ommunication
UART, TWI
none
UART, TWI
T
emperature
termination
controlled by LDU
none
controlled by LDU
Modulation
analog / TTL
CW operation only
analog / TTL
Table 1: ZX product family at a glance

Product
ZX
Date:
2018.09.19
Page:
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Z-Laser Optoelektronik GmbH
Merzhauser Str. 134
D-79100 Freiburg
Tel.: [phone]
Fax: [phone]
Operation manual
Document-ID: UI-ZL-140011-0.9-2018-09-19
0.
9
Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
Upon Receiving the ZX-module
Upon receiving your delivery, please check the shipping box for visible damages. Immediately
report such damages to your shipping company.
After unpacking please carefully check the laser product for potential damage. If you discover
any damage please report immediately to Z-LASER. In the case of physical damage do not
operate the product!
This shipment contains the following parts:
- ZX laser module with nameplate, laser class sticker and black vinyl protection cap.
- Quickstart guide and safety instructions with download link for the manual
Figure 1: scope of delivery - shipping box, ZX laser module & quickstart guide
If any of these components are missing, please contact Z-LASER and do not try to operate the
product!
Save the shipping box and packing material for further shipping needs.

Product
ZX
Date:
2018.09.19
Page:
9 of 62
Z-Laser Optoelektronik GmbH
Merzhauser Str. 134
D-79100 Freiburg
Tel.: [phone]
Fax: [phone]
Operation manual
Document-ID: UI-ZL-140011-0.9-2018-09-19
0.
9
Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
Handling of the product
The ZX module is an IP67 rated laser projector, nevertheless the ZX should be handled with
care. Pay particular attention to the front protection glass.
IP67 (International protection class)
6  Dust-tight. No ingress of dust, complete protection against contact.
7  Immersion up to 1 m. Ingress of water in harmful quantity shall not be possible when the
module is immersed in water under defined conditions of pressure and time (up to 1 m of
submersion).
The driver electronics of the ZX module and the stainless steel housing provides active and
passive protection against ESD, though reasonable handling is essential. Particular attention
has to be paid to the correct electrical connection. Please see chapter 3.1 Electrical interfaces
/ Pinning for appropriate instructions.
Please contact the Z-LASER service department in case of uncertainties.
Operation requirements and specifications
Feature
Requirement
Comment
Operating
Temperature
-
10°C … +50°C (Case Temperature of
the laser module)
Attention: the LDU will switch off
the laser when the temperature
exceeds the specified limits
Storage
Temperature
-
40°C
-
+85°C
Ambient temperature
Humidity
95% non
-
condensing
Overall Power
Dissipation
< 2
.
7
W
Worst case
condition in CW mode.
Depends on laser diode and
operating voltage.
Supply Voltage
(VCC)
5
…
30
VDC
(for 600…900nm modules)
9…30 VDC (for 400…520nm modules)
Max Operating
Current
< 500
m
A
Max inrush current
up to 15A
at system start up
Maximum
optical
output power
u
p to
250 mW
Depends on laser d
iode
.
Power stability
< ± 1% in steady state (1h, T=const
.
)
< ± 3 % over entire temperature range
Laser safety class
1, 1M, 2, 2M, 3R, 3B
D
epends on module
configuration
.
Attention: reducing the intensity
via Analog Modulation (Pin 4)
does not change the laser class.
Table 2: Operation requirements and specifications

Product
ZX
Date:
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Page:
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Z-Laser Optoelektronik GmbH
Merzhauser Str. 134
D-79100 Freiburg
Tel.: [phone]
Fax: [phone]
Operation manual
Document-ID: UI-ZL-140011-0.9-2018-09-19
0.
9
Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
NOTE
The laser driver unit (LDU) will stop laser emission, if the ZX module is
operated outside the above specified temperature range. To restart laser
emission the power supply has to switch off and back on again
(power cycle).

Product
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Z-Laser Optoelektronik GmbH
Merzhauser Str. 134
D-79100 Freiburg
Tel.: [phone]
Fax: [phone]
Operation manual
Document-ID: UI-ZL-140011-0.9-2018-09-19
0.
9
Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
2 Laser Safety
Your safety is of the highest importance to us. Please read and follow the following laser safety
information before using this product.
Lasers are classified as 1, 1M, 2, 2M, 3R, 3B and 4 according to ISO EN 60825-1.
Class 3R, 3B and 4 lasers are not intended for use of uneducated people. The area in which they are
operated must be restricted and marked according to laser safety guidelines. The operator of the laser
system must provide trained personnel to supervise the observance of laser safety regulations. He
must provide protection glasses and other safety prerequisites to the personnel. Generally the
operator of the laser system takes full responsibility for the safe installation, marking, handling and
operation of the laser.
CAUTION NOTE
The use of optical instruments with this product will increase eye hazard.
Do not shine laser in the direction of other people or at reflective surfaces
that might cause exposure to the human eye!
The laser radiation emitted from this unit may be harmful.
Always follow these precautions:
 Avoid direct exposure to the beam.
 Avoid looking at the beam directly.
 Don’t modify the laser product and operate it according to the user instructions
 Be aware of and follow the warnings on the safety labels
 To completely shut off power to the unit unplug the unit.
 Cover the output with the safety cap when the unit is operated outside its target system.
Review of reported incidents has demonstrated that accidental eye and skin exposures to laser
radiation, and accidents related to the ancillary hazards of a laser or laser system, are most often
associated with personnel involved with the use of these systems under the following conditions:
 Unanticipated eye exposure during alignment
 Misaligned optics and upwardly directed beams
 Available eye protection not used
 Equipment malfunction
 Improper methods of handling high voltage
 Intentional exposure of unprotected personnel
 Operators unfamiliar with laser equipment
 Lack of protection for ancillary hazards
 Improper restoration of equipment following service

Product
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Date:
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Page:
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Z-Laser Optoelektronik GmbH
Merzhauser Str. 134
D-79100 Freiburg
Tel.: [phone]
Fax: [phone]
Operation manual
Document-ID: UI-ZL-140011-0.9-2018-09-19
0.
9
Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
These hazards can be avoided by a proper understanding of the equipment and by following safe
procedures.
The German BGV B2 (Unfallverhütungsvorschrift “Laserstrahlung”) gives more information regarding
safe operation of laser systems.
Equipment:
Test all lasers, delivery systems, and safety equipment prior to turning on the laser. Appropriate
personal protective equipment such as appropriate laser protective eyewear should be worn during
such tests. All safety procedures will be followed during service and demonstrations.
Eye Protection:
The greatest risk for personnel using lasers is eye injury to the cornea or retina from direct or reflected
laser beams. Protective eyewear with adequate optical density (OD) at the particular wavelength in
use must be clearly labelled and worn by all members of the operating team within the NHZ. It is
recommended that built-in side shields be used to protect the eyes from tangential beams and
scattered reflections. Safety eyewear labelled with the appropriate wavelength and optical density will
be available at the entry where each door sign is posted.
Caution: Laser Safety Eyewear is not designed for looking directly at a laser beam.
Checks:
Check the power output of the laser frequently with an appropriate power meter, especially before
beginning the procedure. Appropriate eyewear should be worn during such checks. The laser should
be placed in a standby mode when not in use, to prevent inadvertent exposure to power/energy.
Electrical Hazards:
Use of any electrical system may give rise to electrical hazards; consequently, proper grounding and
insulation are imperative. Protection against accidental contact with energized conductors by means
of a barrier system is the primary methodology to prevent electric shock accidents with laser
equipment. Additional electrical safety requirements are imposed upon laser devices, systems, and
those who work with them, by the US Department of Labor, OSHA, the National Electrical Code
(NFPA 70), and related state and local laws and regulations. These requirements govern equipment
connection to the electrical utilization system, electrical protection parameters, and specific safety
training. These requirements must be observed with all laser installations.
The following potential problems have frequently been identified during laser facility audits.
 Uncovered electrical terminals
 Improperly insulated electrical terminals
 Hidden “power-up” warning lights
 Lack of personnel trained in current cardiopulmonary resuscitation practices, or lack of
refresher training
 “Buddy system” not being practiced during maintenance and service
 Non earth-grounded or improperly grounded laser equipment
 Non-adherence to the OSHA lock-out standard (29 CFR 1910.147)
 Excessive wires and cables on floor that create fall or slip hazards

Product
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D-79100 Freiburg
Tel.: [phone]
Fax: [phone]
Operation manual
Document-ID: UI-ZL-140011-0.9-2018-09-19
0.
9
Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
Emergency Shutoff:
An emergency shutoff switch must be available to the operator or the assistant to rapidly shutdown
the equipment. The interlock of the laser is intended to shut down laser power immediately
Controlled Area:
Authorized personnel, upon entry to an area where lasers are being used, should be provided with
personal protective equipment (see Description of Facilities, above). Such controlled area should
contain the NHZ, the extent of which is clearly delineated, and should be posted with appropriate laser
warning signs specific to the wavelength being used (as described in ANSI Z136.3, Section 4.7). The
laser should not be activated when it is necessary to open the door, if the Nominal Hazard Zone (NHZ)
extends to the doorway.
Glass windows will be covered with shades or filters of appropriate optical density whenever a laser
system is operational. No one will be allowed into a laser room unless properly authorized and
protected.
Warning Signs:
Regulation Danger laser signs will be posted at eye level on all doors that access a room where Class
3b and/or Class 4 laser will be operated. These signs will state all required information as described in
the ANSI Z136.1 standard, and will be removed when the laser is not in use.
Fire Hazards:
Class 4 laser systems represent a fire hazard. Enclosure of Class 4 laser beams can result in potential
fire hazards if enclosure materials are likely to be exposed to irradiances exceeding 10 W/cm2 or beam
powers exceeding 0.5 W. The use of flame retardant materials, as defined by the National Fire
Protection Association (NFPA), should be encouraged.
Opaque laser barriers e.g., curtains, can be used to block the laser beam from exiting the work area
during certain operations. While these barriers can be designed to offer a range of protection, they
normally cannot withstand high irradiance levels for more than a few seconds without some damage,
e.g., production of smoke, open fire, or penetration. Users of commercially available laser barriers
should obtain appropriate fire prevention information from the manufacturer.
Operators of Class 4 lasers should be aware that unprotected wire insulation and plastic tubing can
catch fire from intense reflected or scattered beams, particularly from lasers operating at invisible
wavelengths.
Explosion Hazards:
High-pressure arc lamps, filament lamps, and capacitor banks in laser equipment shall be enclosed in
housings, which can withstand the maximum explosive pressure resulting from component
disintegration. The laser target and elements of the optical train which may shatter during laser
operation shall also be enclosed or equivalently protected to prevent injury to operators and
observers. Explosive reactions of chemical laser reactants or other laser gases may be a concern in
some cases.

Product
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Merzhauser Str. 134
D-79100 Freiburg
Tel.: [phone]
Fax: [phone]
Operation manual
Document-ID: UI-ZL-140011-0.9-2018-09-19
0.
9
Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
From the German BGV B2 (Unfallverhütungsvorschrift “Laserstrahlung”):
Lasereinrichtungen müssen entsprechend ihrer Klasse und Verwendung mit den für einen
sicheren Betrieb erforderlichen Schutzeinrichtungen ausgerüstet sein (§4 Abs. 2). Diese Forderungen
gelten als erfüllt, wenn:
 der Fernverriegelungsstecker eines Lasers der Klasse 3B oder 4 an einen Not-Aus-Schalter,
einen Türkontakt oder an eine andere gleichwertige Einrichtung mit Schutzfunktion angeschlossen
ist (§8 Abs. 4)
 Lasereinrichtungen der Klassen 2 für Unterrichtszwecke, 3R, 3B oder 4 bei Nichtbenutzung
gegen unbefugten Gebrauch durch das Abnehmen des Schlüssels des Schlüsselschalters gesichert
sind (§8 Abs. 4),
 Lasereinrichtungen der Klassen 3R, 3B oder 4 bei Nichtbenutzung durch die Verwendung der
Strahldämpfungseinrichtungen gesichert sind (§8 Abs. 4).
Der Betrieb von Lasern der Klassen 3B oder 4 müssen dem zuständigen Unfallversicherungsträger
und der für den Arbeitsschutz zuständigen Behörde vor der ersten Inbetriebnahme angezeigt werden
(§5 Abs. 1).
Der Unternehmer hat für den Betrieb von Lasereinrichtungen der Klassen 3B oder 4 Sachkundige als
Laserschutzbeauftragte zu bestellen (§6 Abs. 1). Es wird empfohlen, diese mit Weisungsbefugnissen
und Verantwortung auszustatten (§6 Abs. 2).
Der Unternehmer hat dafür zu sorgen, dass Versicherte, die Lasereinrichtungen der Klassen 2 bis 4
anwenden oder sich in Laserbereichen von Lasereinrichtungen der Klassen 3B oder 4 aufhalten, über
das zu beachtende Verhalten mindestens einmal jährlich unterwiesen werden (§8 Abs. 3).

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Operation manual
Document-ID: UI-ZL-140011-0.9-2018-09-19
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Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
3 Operating the laser module
CAUTION NOTE
Please stick to the instructions given in this user manual when operating
the ZX laser module. Operating the product in a manner not specified in
this document may lead to safety hazards and will void the product
warranty.
CAUTION NOTE
Laser emission of this product can cause serious damage to the human
eye. Before operate the product consider the use of proper laser safety
equipment such as laser safety glasses.
Protection cap:
Every ZX module is delivered with a protection cap which covers the laser beam exit. This cap protects
the optical surface from being contaminated or damaged during transportation, storage or inactivity.
Before starting laser emission the cap has to be removed from the module.
DO NOT USE the cap to block laser light. The cap can melt due to high power density of the laser beam.
Figure 2: protection cap

Product
ZX
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Operation manual
Document-ID: UI-ZL-140011-0.9-2018-09-19
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Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
First steps to a basic operation of the laser module could be as follows:
i) Use the clamping area of your ZX20 module to mount it on a proper heatsink (for clamping
area please see chapter 6 Drawings).
ii) Connect the ZX20 module as described in chapter 3.1 Electrical interfaces / Pinning
iii) Switch on the power supply. The green status LED turns ON after system start-up procedure.
iv) Connect Pin 2 (DIG) and apply appropriate TTL signal to the digital trigger input to start laser
emission (orange LED turns ON).
Electrical interfaces / Pinning
The electrical interfacing of the ZX is represented by a 5-Pin M12 connector with A-Coding or a 6-pin
cable with open leads. The factory-set default pin assignment is shown in Table 3.
While Pin 1 and Pin 3 are fixed and unchangeable, Pin 2, Pin 4 and Pin 5 can be assigned to various
functions. Please see chapter 3.4.7 “SET_CONFIG_MODE” for detailed information on changing pin
assignment and for how to get access to different operation modes. The default Config-Mode is “00”.
M12 5
-
Pin A
-
Coding Male Connector
According to IEC 61076-2-101
Pin 1: VCC
Pin 2: DIG (Fail Out)
Pin 3: GND
Pin 4: ANA (RXD/ SCL)
Pin 5: FAIL (TXD/ SDA)
Pin 1 (brown) → VCC
Pin 2 (orange) → DIG (Fail Out)
Pin 3 (black) → GND
Pin 4 (yellow) → ANA (RXD/ SCL)
Pin 5 (green) → FAIL (TXD/ SDA))
Pin 6 (red) → SHIELD
Table 3: Pinning of the ZX laser module
VCC: voltage supply
DIG: digital modulation TTL (3.3…30 VDC for digital high, 0 VDC for digital low)
GND: ground
ANA: analog modulation: linearly adjust the optical output power between 10% (0 VDC) and 100%
(2 VDC) of the nominal output power of the laser module
FAIL: fail out signal (will be actively pulled to GND if an error is present)
SHIELD: shielding pin, not connected to laser modules housing

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Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
Pin
Config
Mode
Feature
Spec
Comment
1
ALL
VCC
5
-
30
VDC ± 10 %
 Reverse polarity protected
 Burst and surge protected
2
00,
02,
03
Digital
Modulation
(PWM)
up to 500 kHz (depends on laser diode
)
PWM transmission error:
< ± 2% @ 10 kHz
< ± 5% @ 300 kHz
PWM input, CMOS signaling:
VIL_max: < +1.0 V
VIH_min: > +2.3 V
 Reverse polarity protected
 Overvoltage protected up to 30 VDC
PWM
transmission error
:
when a PWM signal at a 50%
power level (duty cycle) is
translated to a 45% laser
power level – the transmission
error is -10%. Typically the
transmission error is caused
by turn-on-delays of the laser
diode.
06,
07
Fail Out
3.3V CMOS
output (active low)
Signal pulled to GND if an
error is present
3
ALL
GND
Common ground
System Ground, pl
ease ensure
proper connection to ground
signal of your power supply
4
00,
Analog
Modulation
Real time analog power control input
 Linear range: 10%...100% of nominal
laser power.
 Resolution: 100µW
 Response Time: 100ms
 Input range: 0.0…2.0 V
 Reverse polarity protected
 Overvoltage protected up to 30 VDC
 Internal pull-up resistor leads to 100% of
rated laser output power if left open
rated
laser
output power:
Maximum laser output power
that can be emitted by one
laser module. This value is
calibrated at Z-Laser.
02,
06
UART RXD
3.3V Communication Signal
Laser Data Input
03,
07
TWI SCL
3.3V Communication Signal
Serial Clock
5
00,
Fail Out
3.3V CMOS output (active low)
Signal pulled to GND if an
error is present
02,
06
UART TXD
3.3V Communication Signal
Laser Data Output
03,
07
TWI SDA
3.3V Communication Signal
Serial Data
Table 4: electrical interfaces

Product
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Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
CAUTION NOTE
The analog modulation input (default Pin 4) has an internal pull-up
resistor. This leads to 100% of rated laser output power if the pin is
not driven by an external source. As a consequence the laser emits
with 100% of rated laser output power, if the analog modulation
input is directly connected to the digital modulation input.
CAUTION NOTE
Reducing the intensity via analog modulation (default Pin 4) does
not have an impact on the laser class.
Power supply
The ZX module can be supplied by 5…30 VDC (for 600…900nm modules) or 9…30 VDC (for 400…520nm
modules), respectively. The ZX will automatically transform the input into a proper internal voltage
level for the particular operating condition.
The supply input on Pin 1 is protected against reverse polarity and transient over voltages.
There is no ON-switch and shutter. Once supply voltage is applied, the module starts powering up.
During start-up procedure self-testing routines verify the safety architecture and integrity of the entire
system. After completion of these tests, laser emission starts by applying a TTL Trigger signal on Pin 2.
A simple way to permanently operate the module in Continuous Wave (CW) mode is to short-cut Pin 2
with the voltage supply (Pin 1).
System integrity tests are only conducted after power cycling the ZX laser module. To prevent
undetected accumulations of failures, the module should be power cycled on a regular base, e.g. once
every 24h. An integrated ON-time counter can be read out via TWI telegrams (see chapter 3.4.6) or
the GUI (see chapter 5) and indicates the time passed by since the last system integrity test.
Focus adjustment
You can adjust the focus position of every focusable ZX module without any tools by turning the
knurling wheel. In order to prevent unintentional shift of focus, the rotation of the wheel is
mechanically impeded and you may need a bit of force to move it.
The focus position can be set to larger distance by turning the knurling wheel clockwise, by turning
the wheel counterclockwise you can focus the laser beam to shorter distance.

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Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
Figure 3: focus adjustment
Serial Interface
The ZX-H module can be controlled by user commands being transmitted via a serial interface. Two
transmission standards are supported on dedicated IO-Pins, UART and TWI. The user can operate one
of each at a time. When the TWI interface is used, external pull-up resistors must be implemented.
Note: not all implemented telegrams are documented due to low relevance to customer use cases. A
full documentation is available on request. Please contact Z-LASER.
3.4.1 UART Interface
 Up to 19 200 Baud
 No parity
 1 Stop bit
 8 Data bits
 Half duplex communication
 Voltage Level 3.3V
 ASCII data format
Every Sequence (read and write) must be terminated by a Line Feed character (0x0A = “\n” = LF)

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Author:
CSCH
Merzhauser Str. 134 ~ 79100 Freiburg ~ Tel.: [phone] ~ Fax: [phone]
[email protected] ~ www.z-laser.com
The ASCII representation of the UART-frames is identical to the hexadecimal representation of the
TWI-frames. Even the device-ID must be transmitted when UART is used; see light green telegram
byte for TWI transmissions below. So the given documentation refers to TWI but is valid for UART
communication as well.
Example:
Documentation of the TWI telegram that reads the ZX Firmware Version
The corresponding TWI telegram in hexadecimal representation:
TWI write frame -> 88 F0 0E EF length: 4 Bytes
TWI read frame -> 00 03 00 05 8D 35 length: 6 Bytes
The corresponding UART telegram in ASCII representation:
UART request telegram -> 88F00EEF<LF> length: 9 Bytes
UART receive telegram-> 000300058D35<LF> length: 13 Bytes
The length of the UART frame is always calculated as: (length of TWI frame) * 2 + termination
character.
CRC (CCIT format) is calculated from the command and data frame without the TWI-address. See
details in next subchapter.
3.4.2 TWI Interface
The TWI communication interface is operated via SCL and SDA (Pin 4 and Pin 5) according to
standardized physical TWI protocol definition up to 100 Kbit/s. No pull-up resistors are implemented
for both wires; this must be done on the host side. A proper GND reference of the applied signals has
to be ensured. Signal-GND (Pin 3) can be used for this.
Please refer to the original Philips specification that can be found at this URL:
http://cache.nxp.com/documents/user_manual/UM10204.pdf
NOTE
Please pay attention to the following deviations from the original
Philips I²C specification:
 Max high level output voltage 3.3V
 1 mA current sink capacity
 Pull-Up resistors must be chosen in accordance with the current
sink specification
WR-Device-ID CMD (0xF0)
RD-Device-ID
System Status
Major Version Minor Version Build
Hi-Byte CRC Lo-Byte CRC
Hi-Byte CRC Lo-Byte CRC