USER MANUALSR AOM series
Sealed CO2 laser sources with integrated AOM

© 2022 Luxinar Ltd. All rights reserved.
Revision history
1
2

3

10/03/2021 — CR 651476: Update to XML format. Includes changes relating to CR 651325 and CR 651481.
18/01/2022 — CR 649750: Addition of maximum single person lifting weight warning and EN61010 statements, update of EN60825
specification title, update of DC power supplies and minor technical corrections and adjustments. Addition of detail for EN55011 compliancestatement. Updates to DC PSU and safety sections.
31/10/2022 — CR 651940: UKCA marking and safety section updates.

This manual is copyrighted with all rights reserved. Under copyright laws, this manual may not be copied inwhole or part or reproduced in any other media without the express permission of Luxinar Ltd. Permitted
copies must carry the same proprietary and copyright notices as were affixed to the original. Under law,
copying includes translation into another language.
Please note that while every effort has been made to ensure that the data given in this document is accurate,
the information, figures, illustrations, tables, specifications and schematics contained herein are subject tochange without notice. Contact Luxinar Aftersales to verify that you have the latest version of this manual.

Aftersales contact details
Luxinar Ltd
Meadow Road
Bridgehead Business Park
Kingston upon Hull
HU13 0DG
U.K.
Tel.: +44 (0) 1482 650088
www.luxinar.com
For Aftersales Service, contact: aftersales.uk@luxinar.com
For Parts, contact: parts.uk@luxinar.com
Luxinar GmbH (Germany)
Röntgenstrasse 621465 Reinbek
Germany
Tel.: +49 (0)40 883624-60
www.luxinar.com/de
Luxinar Ltd (Italy branch office)Via Pavia 11/B
10098 Rivoli
TorinoItalyTel.: +39 (0)11 19118353
www.luxinar.com/it
Luxinar Ltd (Korea branch office)#409, A-dong (Bundang Suji U-Tower)
767, Sinsu-ro, Suji-gu, Yongin-si, Gyeonggi-do
Republic of Korea 16827
Tel.: +82 (0)31 546 0861
www.luxinar.com/ko
Luxinar Laser Technology (Shanghai) Co., Ltd (China)
Room 02, 5th Floor, 8# Jiafeng Road
Shanghai Pilot Free Trade Zone
Shanghai, China
200131
Tel.: +86 21 6106 9917
www.luxinar.com/zh-CN
Luxinar Inc (USA)51047 Celeste Dr
Shelby Township
MI 48315
USA
Tel.: +1 (0)586 291 2709
www.luxinar.com

Warranty shipments, returns and adjustments
Warranty claims must be made promptly and must be received by Luxinar Ltd during the applicablewarranty period.
Always identify the product, by both model number and serial number, when contacting Luxinar Aftersales.

If it becomes necessary to return a product for repair and/or adjustment, the instructions as to how andwhere these products should be shipped must be obtained from Luxinar Aftersales.

Service and repair
Servicing or calibration of the system can only be carried out by trained Luxinar service engineers or
customers who have undertaken and passed a Luxinar approved service training course. Details of training
courses and servicing can be obtained from the local Luxinar Aftersales address.

Table of contents
Preface
Audience
Other publications
How to use this manual
Admonitions
Connector labels and signal names
1. Safety........................................................................................................................................................... 1
1.1. General safety information................................................................................................................. 1
1.2. Label locations.....................................................................................................................................1
1.3. Labels.................................................................................................................................................. 2
1.4. Maximum Permissible Exposure and Nominal Ocular Hazard Distance............................................. 4
1.5. AOM module cover interlock.............................................................................................................. 4
1.6. Decommissioning and disposal........................................................................................................... 5
2. General Description..................................................................................................................................... 7
2.1. Laser head........................................................................................................................................... 7
2.2. DC power supply (optional)................................................................................................................. 7
2.3. Specifications...................................................................................................................................... 7
2.3.1. RF power supply........................................................................................................................... 7
2.3.2. Dimensions................................................................................................................................... 8
2.3.3. Weights........................................................................................................................................ 8
2.3.4. Cooling system............................................................................................................................. 8
2.3.5. Optics purge gas........................................................................................................................... 9
2.3.6. Environmental specifications....................................................................................................... 9
2.3.7. Performance............................................................................................................................... 10
3. Operation................................................................................................................................................... 11
3.1. Overview of operating modes........................................................................................................... 11
3.2. AOM operation overview.................................................................................................................. 11
3.3. General considerations before starting the laser..............................................................................11
3.4. Start-up............................................................................................................................................. 11
3.5. Shut-down......................................................................................................................................... 123.6. Emergency stop................................................................................................................................. 123.7. Pulse compensation.......................................................................................................................... 12
4. Diagnostics and troubleshooting.............................................................................................................. 13
4.1. Status indicator diagnostics — PSU, interlocks & cooling................................................................. 13
4.2. Status indicator diagnostics — AOM module....................................................................................15
4.3. Status indicator diagnostics — Control modes................................................................................. 15
5. Routine maintenance................................................................................................................................ 175.1. General cleaning................................................................................................................................175.2. Pre-ioniser and AOM fuse replacement............................................................................................ 175.3. Cooling system contamination.......................................................................................................... 18
5.4. Frost protection.................................................................................................................................18
6. Installation................................................................................................................................................. 19
6.1. Installation procedure....................................................................................................................... 19
6.2. Unpacking, mounting and connections............................................................................................. 20
6.2.1. Mechanical fixing........................................................................................................................20
6.2.2. Laser output aperture location.................................................................................................. 22
6.2.3. Coolant connections and pipework............................................................................................22
6.2.4. Beam delivery optics purge gas..................................................................................................26
6.2.5. Electrical power connections..................................................................................................... 26
6.2.6. Beam delivery............................................................................................................................. 28

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Table of contents

7. Transport and recommissioning............................................................................................................... 31
8. Interfacing.................................................................................................................................................. 33
8.1. Minimum interface connections for laser output............................................................................. 39
8.2. RS232 serial interface........................................................................................................................ 39
8.3. Open drain output usage.................................................................................................................. 40
8.4. Control signal timings........................................................................................................................ 40
8.5. Status indicators................................................................................................................................ 42
8.5.1. Shutter reset...............................................................................................................................42
Appendix A. Dimensional drawings.............................................................................................................. 43
Appendix B. Coolant requirements and additives........................................................................................45
B.1. Coolant quality.................................................................................................................................. 45
B.2. Suspended particle removal..............................................................................................................45
B.3. Corrosion and anti-bacterial inhibitor............................................................................................... 47
Appendix C. Cooling system pressure drop curves.......................................................................................49
Appendix D. DC power supply options......................................................................................................... 51
D.1. DC 3kW single-phase DC power supply........................................................................................... 51
D.1.1. General description..................................................................................................................51
D.1.2. Specification.............................................................................................................................51
D.1.3. Installation............................................................................................................................... 52
D.1.4. Operation................................................................................................................................. 55
D.2. SR 25i single-phase DC power supply (005-0595-00)....................................................................... 56
D.2.1. General description..................................................................................................................56
D.2.2. Specification.............................................................................................................................56
D.2.3. Installation............................................................................................................................... 57
D.2.4. Operation................................................................................................................................. 61
D.2.5. Troubleshooting....................................................................................................................... 62
D.3. SR 25i three-phase DC power supply (016-0035-00)........................................................................ 64
D.3.1. General description..................................................................................................................64
D.3.2. Specification.............................................................................................................................64
D.3.3. Installation............................................................................................................................... 65
D.3.4. Operation................................................................................................................................. 70
D.3.5. Power supply indicators...........................................................................................................71

Table of contentsii

906-0227-00 REV 3

Preface
Audience
This manual should be read by all personnel who install or operate SR AOM series lasers.
Important!
Read this manual carefully before operating the laser for the first time. Pay special attention to
the Safety chapter.

The SR AOM series is designed and sold for use in Original Equipment Manufacturer (OEM) systems andis not to be used as a stand-alone laser. The OEM is responsible for compliance with all applicable safety
regulations.

Other publications•••

Luxinar part number 906-0251-xx; Safety manual
Luxinar part number 906-0109-00; Serial interface specification
Luxinar part number 906-0202-99; Chiller water temperature tables

How to use this manual
The following conventions are used in this manual.

Admonitions
The use of controls, replacement parts, adjustments, or procedures other than those specified within
this manual may result in exposure to any of these hazards.
• Laser hazards• Electrical hazards• Environmental hazards• Mechanical hazards.
The degree of seriousness of the hazard is indicated by the use of the following signal words:

DANGER
Indicates an imminent hazard which, if not avoided, is extremely likely to result in death or serious
injury.

WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious
injury.

CAUTION
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate
injury. It is also used to alert the user against unsafe working practices and potential damage to theequipment.

Connector labels and signal names
Connector labels and signal names are shown in bold serif font to aid identification.
For example; RF Enable, external interlock

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iii

PrefacePrefaceiv

906-0227-00 REV 3

1. Safety
1.1. General safety information
It is strongly recommended that any personnel who are involved with the installation, operation or
maintenance of this laser equipment should first read and fully understand the contents of this manualand Safety manual 906-0251-xx.
If there are any questions or doubts on any of the safety aspects of the equipment, then do not hesitate
to contact your nearest Luxinar Aftersales office or distributor for advice before proceeding.
The installation, operation, maintenance and repair of this laser equipment must only be carried out by
Luxinar service personnel or trained staff who have received correct instruction concerning the hazards
associated with this particular equipment.
Important!
All safety critical instructions contained within this document are framed with a border andidentified by CAUTION, WARNING or DANGER depending on the severity of the risk involved. In
addition, the safety symbol indicates that care should be taken when working with or on thelaser equipment.

Luxinar does not accept liability for any damage or injury howsoever caused or arising.
The symbol given below is also used on the equipment and indicates that the user should refer to the
OEM equipment operator’s manual for more information on the safe operation or installation of theequipment.

1.2. Label locations

A

H
G

B
F

C

E
D
Figure 1 - Location of safety labels - front view

906-0227-00 REV 3

1

1. Safety

J

I
Figure 2 - Location of safety labels - rear view

1.3. Labels

Figure 3 - Label A — Laser hazard
AVOID EXPOSURE INVISIBLE AND
VISIBLE LASER RADIATION IS
EMITTED FROM THE APERTURE

Figure 4 - Label B—Laser apertureC A U T IO N L A S E R D IO D E F IT T E D(Wavelen g th 625-6 9 0 n m O u tp u t
P ower < 4m W) V IS IB L E & IN V IS IB L E
L A S E R R A D IAT IO N D O N O T S TA R E
IN TO T H E B E A M O R V IE W
D IR E C T LY WIT H O P T IC A L
IN S T R U ME N TS C L A S S 3M L A S E R
P R O D U C T E N 6 0 825-1: 20 14

Figure 5 - Label C — Class 3R laser diode fitted

Figure 6 - Label D — Electrical hazard

1. Safety

2906-0227-00 REV 3

WARNING
Disconnect the mains supply
before removing this cover
Figure 7 - Label E — DC voltage warning
Table 1 - Label F — Class 4 laser
CAUTION INVISIBLE LASER RADIATION AVOID EYE OR SKINEXPOSURE TO DIRECT OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT EN60825-1:2014

CAUTION INVISIBLE LASER RADIATION AVOID EYE OR SKINEXPOSURE TO DIRECT OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT EN60825-1:2014

WAVELENGTH: 9µm - 12µm
PEAK POWER (Maximum): 570W
AVERAGE POWER (Maximum): 380W
PULSE DURATION (Maximum): CW

WAVELENGTH: 9µm - 12µm
PEAK POWER (Maximum): 1770W
AVERAGE POWER (Maximum): 590W
PULSE DURATION (Maximum): CW

Figure 8 - SR 10 AOM

Figure 9 - SR 25 AOM
5

6

1
2
4

3

7

1

Model number

2

Part number

3

Serial number

4

Input

5

Revision

6

Weight7

IP ratingFigure 10 - Label G — Product identification and certification

CAUTION
CLASS 4 LASER RADIATION WHEN
OPEN AVOID EYE OR SKIN EXPOSURE
TO DIRECT OR SCATTERED RADIATION

Figure 11 - Label I — Non-interlocked panel

Figure 12 - Label H — RF power supply product identification

Figure 13 - Label J — AOM module product identification

906-0227-00 REV 3

3

1. Safety

1.4. Maximum Permissible Exposure and Nominal Ocular Hazard Distance
The Maximum Permissible Exposure (MPE) is the level of radiation to which, under normal
circumstances, persons may be exposed without adverse effects. The MPEs represent the maximum
level to which the eye or skin can be exposed without consequential injury and are related to thewavelength of the laser radiation, the pulse duration or exposure duration, and the tissue at risk.
The MPEs given in the following tables are informative and provided so that the integrator can calculate
the Nominal Ocular Hazard Distance (NOHD), perform a risk analysis and inform the user about the safe
usage of the product. However, exposure limits for the eye and the skin of employees in the work place
and the general public are in many countries specified in national laws. These legally-binding national
exposure limits might differ from the MPEs given in the tables below.
The NOHD is the distance from the output aperture beyond which the beam irradiance or radiantexposure remains below the appropriate MPE. Importantly, the NOHD is dependent upon the beam
waist size and the divergence of the beam. Therefore, the NOHD is dependent upon the opticalcomponents acting on the beam. The NOHDs given in the tables below are relevant only when the laser
is operated without external beam delivery attached. When beam delivery is attached it is the
responsibility of the integrator or end-user to recalculate the NOHDs. Further details of the safe use oflasers are given with IEC/ TR 60824-14 "Safety of laser products – Part 14: A user’s guide."

SR 10 AOM
Wavelength (µm)

9.3

MPE (W/m²)

1000

NOHD (m)325

SR 25 AOM
Wavelength (µm)

9.3

MPE (W/m²)

1000

NOHD (m)625

1.5. AOM module cover interlock
The AOM module has an interlock switch that opens to disable laser output when the cover is removed.
For maintenance purposes, the switch can be overridden by pulling out the switch plunger.
Important!
There are no user serviceable parts within the AOM module. The cover should only be removed
by trained Luxinar service personnel.

With the cover removed and the interlock overridden, full power laser emission is present within the
AOM module even if there is no laser emission at the output window and no demand signal is active.

DANGER
Laser radiation hazard
Hazardous laser radiation is present within the AOM module at all times when modulation is
active. Do not operate the laser with the AOM module cover removed.

1. Safety

4906-0227-00 REV 3

1.6. Decommissioning and disposal
Dispose of the system according to appropriate local regulations.

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5

1. Safety

1. Safety

6906-0227-00 REV 3

2. General Description
2.1. Laser head

Figure 14 - SR AOM laser head

SR AOM lasers comprise a laser tube, integrated RF power supply unit and an Acousto-Optic Modulator(AOM) module packaged within a robust aluminium casing. The laser tube is RF-excited and has adiffusion cooled sealed cavity. All have an excitation frequency of 81MHz and an expected tube lifetime
greater than 20000 hours. The AOM module provides laser output pulses with faster rise and fall times(<1µs) than are available from standard SR series lasers. There are two models offering different output
powers.
• SR 10 AOM
75W peak power• SR 25 AOM
150W peak power

2.2. DC power supply (optional)
Refer to Appendix D for details of Luxinar DC power supplies

2.3. Specifications
Note: This equipment is designed for overvoltage category II as defined within EN
61010-1:2010+A1:2019.

2.3.1. RF power supply
Table 2 - RF power supply characteristics
SR 10 AOMModel
DC input (1)50VDC ± 1% @ Ipeak = 80A
Iavg = 54A

Maximum average power
requirement (2)2.7kW

SR 25 AOM
50VDC ± 1% @ Ipeak = 160A
Iavg = 106A
5.3kW

1. Luxinar recommends using a DC power supply with a maximum current output at least 20% higher than these values.
2. Luxinar recommends using a DC power supply with a maximum average power rating at least 20% higher than these values.

906-0227-00 REV 3

7

2. General Description

2.3.2. Dimensions
Table 3 - External dimensions (including RF power supply)Model

SR 10 AOMSR 25 AOM

Standard laser (LxWxH) (mm)885x290x226

947x290x226

2.3.3. Weights
Note: All weights are approximate.
Table 4 - Weight (including RF power supply)
ModelStandard laser

SR 10 AOMSR 25 AOM

47.1kg50kg

2.3.4. Cooling system
SR AOM lasers require a temperature stabilised recirculating coolant circuit in order to operatecorrectly.
The preferred coolant is deionised water or deionised water with anti-bacterial additive. See
Appendix B.
Important!
To prevent condensation on optical surfaces, the coolant temperature must be maintained
above the dew point.

The following look-up table defines minimum coolant temperatures (above the dew point) that avoid
condensation with respect to ambient temperature and relative humidity.
Table 5 - Minimum laser resonator coolant temperatures
Ambient temperature (°C)

Relative
humidity

2. General Description

20

25

30

35

40

45%

19

19

19

24

29

50%

19

19

20

25

30

55%

19

19

21

26

60%

19

19

22

27

65%

19

19

23

28

70%

19

19

24

29

75%

19

20

25

30

80%

19

21

26

85%

19

22

27

90%

19

23

28

95%

19

24

29

8

45

906-0227-00 REV 3

Table 6 - Coolant specification — laser
Model

SR 10 AOMSR 25 AOM

Minimum flow rate (L/min)

4

5

Recommended flow rate (L/min)≥6≥6

Maximum pressure

6bar

Dissipation

3kW

5kW

Required refrigeration capacity

> 3kW

> 5kW

Coolant temperature (laser)

18–25°C ± 1°C (above dew point)
Refer to document 906-0202-99 for more details.
Table 7 - Coolant specification — AOM module

Model

SR 10 AOMSR 25 AOM

Minimum flow rate (L/min)

2

2

Recommended flow rate (L/min)≥3≥3

Maximum pressure

3bar

Dissipation

0.45kW

0.5kW

Required refrigeration capacity> 0.45kW

0.5kW

Coolant temperature (AOM)

18–20°C ± 1°C (above dew point)

2.3.5. Optics purge gas
Table 8 - Optics purge gas specification
Purge gas pressure

0.07–0.21bar (1–3psi)

Flow rate

1–2L/minNitrogen purity
Nitrogen purity grade≥ 4.6 (O2 ≤ 3vppm, H2O ≤ 2vppm )Compressed air contamination limits
Oil≤ 0.005mg/m3

Water≤ 0.05g/m3

Particles≤ 0.05µm

2.3.6. Environmental specifications
Note: This equipment is designed for indoor use only and Pollution Degree 2 as defined within EN
61010-1:2010+A1:2019
Table 9 - Environmental specifications
5–30°C

Ambient working temperature
Storage temperature (with drained cooling circuit)-10 to +30°C

Relative humidity (non-condensing)

10–85%

Maximum altitude< 2000m

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2. General Description

2.3.7. Performance
Table 10 - SR AOM output characteristics
Model

SR 10 AOM
9.3µm

Output wavelength (3)Rated average power range (4)0–75W

0–150W± 2%

Typical long term stability (5)Peak power

75W

150W

Minimum shipment power (6)> 75W> 150W

Pulse frequency
Pulse energy

0–240kHz> 0.15mJ> 0.3mJ

Pulse width> 1µs

Maximum duty cycle

100%

Optical pulse rise time

< 1µs

Optical pulse fall time

< 1µs

Excitation frequency

81MHz

Expected tube lifetime

20000 hours

Beam diameter (1/e2) at the laser
output optic

5.6 ± 0.5mm

Beam quality factor
Beam divergence (full angle far field)

7.7 ± 0.5mm
M2 <1.2 (K >0.83)≤ 3.1mrad≤ 2mradBeam ellipticity (7)< 1.2:1

Pointing stability (half angle)≤ 0.3mrad

Polarisation

3.
4.
5.
6.
7.

SR 25 AOM

Linear perpendicular to the laser base

9.27µm is the predominant wavelength but can typically vary in the range 9.2–9.4µm.
Mean average power at 100% AOM duty cycle. The mean average power is proportional to the AOM duty cycle.
Guaranteed long term stability is ± 3%.
Mean average power at 100% AOM duty cycle. The mean average power is proportional to the AOM duty cycle.
At a demand duty cycle of 50%.

2. General Description

10906-0227-00 REV 3

3. Operation
3.1. Overview of operating modes
Table 11 - SR AOM control feature overview
Standard version
Control modes
Internal closed loop power control with AOM demand.

✔

Signals
RF Enable✔

Interlock✔

Shutter enable✔

Laser diode pointer enable✔

RS232 control commands✔

3.2. AOM operation overview
SR AOM lasers contain an internal Acousto-Optic Modulator (AOM) fitted between the laser resonatorand the output window. The laser resonator runs continuously under closed-loop control and the output
passes into the AOM which diverts the beam into a beam dump. When an AOM demand pulse isapplied, the AOM rapidly switches the beam from the dump to the output aperture. This results in asignificantly shortened rise and fall time for each laser pulse.

3.3. General considerations before starting the laser
•
•
•
•
•

Ensure that the beam path is free from obstructions.
If the machine is in a maintenance or installation situation with machine guards removed, check that
there are no personnel within the area and that safety warning notices are prominently displayed.
Ensure all interlocks are operating correctly.
Verify that the material to be processed is suitable for CO2 laser processing.
Verify that the material to be processed is correctly positioned and ready for processing.

3.4. Start-up
1.

Ensure that all machine safety features are present and activated.
If the machine is in maintenance mode with enclosure panels removed, ensure that the areasurrounding the machine complies with local laser safety regulations and that laser safety warning
notices are displayed prominently. All persons in the area must wear laser protection eyewear.

DANGER
Risk of injury to eyes and exposed skinThis is a Class 4 (Class IV) laser product. All precautions relevant to this class of laser productshould be strictly observed. Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure. Strict
compliance with the safety precautions set out and referred to in this manual and extreme
care in use are essential to minimise the chance of accidental damage to the equipment or
personal injury. Luxinar does not accept liability for any damage or injury howsoever causedor arising.
2.
906-0227-00 REV 3

Turn on the coolant circulating system and check for correct flow and temperature.
11

3. Operation

3.
4.
5.
6.
7.

Turn on the optics purge gas.
Verify that all interlocks are closed.
Switch on mains power to the laser and controller.
Set the operating parameters on the machine controller.
Enable the RF power supply.

DANGER
Laser radiation hazard
Avoid exposure to direct and scattered radiation.
8. Enable the shutter.
9. Apply a Laser enable signal.
10. Apply an energy demand signal.

3.5. Shut-down
1.
2.
3.
4.
5.
6.
7.

Remove the energy demand signal.
Remove the Laser enable signal.
Close the shutter.
Disable the RF power supply.
Switch off mains power to the laser and controller.
Turn off the coolant recirculating system (AOM and laser).
Turn off the optics purge gas.

3.6. Emergency stopAn emergency stop is initiated by the OEM machine. The machine should automatically:• Remove the Laser enable signal.
• Close the shutter.
• Remove the RF enable signal.
• Break the laser interlock circuit.
Important!
The laser will not restart unless the Laser enable signal is removed and re-applied. Control
signal timings must be respected when restarting. See section 8.4.

3.7. Pulse compensation
SR AOM laser systems include a user-switchable pulse compensation feature, which when enabled,slightly adjusts the output pulse duration to compensate for the natural ripple of the laser resonatoroutput power in order to maintain consistent pulse-to-pulse energy. With the pulse compensation
disabled, the pulse duration directly follows the user demand signal, but the pulse-to-pulse energy mayvary slightly, especially at shorter pulse durations. The default state is that pulse compensation isenabled. Pulse compensation can be disabled by applying a high signal to connector U1, pin 9. See
Table 18.

3. Operation

12906-0227-00 REV 3

4. Diagnostics and troubleshooting
4.1. Status indicator diagnostics — PSU, interlocks & cooling
Table 12 - Status indicator diagnostics
Indicator display
DC

StatusActionNormal operation. Laser enabled.

No action required.

Coolant flow rate is close to theminimum flow rate. See section 2.3.4.

••

No RF Enable signal.

Check the RF Enable signal.

The modulation input is not within thespecified limits.

Check the modulation signal. See section
Chapter 8.

No modulation input.

Check the modulation signal. See
Chapter 8.

VSWR fault.

•

INT
FLO
RF
MOD
DC
INT

Check the coolant flow rate.
Check for blockages or restrictions in
the cooling system pipes.

FLO
RF
MOD
DC
INT
FLO
RF
MOD
DC
INT
FLO
RF
MOD
DC
INT
FLO
RF
MOD
DC
INT
•

FLO
RF

If the indicator is intermittently red,check the pre-ioniser fuse. See
section 5.2.
If the problem persists, contact
Luxinar Aftersales.

MOD
DC

RF power supply error.

Contact Luxinar Aftersales.

INT
FLO
RF
MOD

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13

4. Diagnostics and troubleshooting

Indicator display
DC
INT

StatusActionCoolant flow is below the required
minimum.

Provide the required minimum coolant
flow rate to the system. See section
2.3.4.

No interlock signal.

Check for open machine interlocks.

•
•

•
•

FLO
RF
MOD
DC
INT
FLO
RF
MOD
DC
INT

No interlock signal.
No coolant flow.

FLO

Check for open machine interlocks.
Provide the required minimum
coolant flow rate to the system. See
section 2.3.4.

RFMOD
The DC supply voltage is not within thespecified limits.

Provide the required DC input voltage.
See section 2.3.1.

DC

•

•

INT

•

The DC supply voltage is not within
the specified limits.
The coolant flow rate is below therequiredminimum.

The DC supply voltage is not within
the specified limits.
No interlock signal.

•

The DC supply voltage is not within
the specified limits.
No interlock signal.
The coolant flow rate is below therequired minimum.

•

DC
INT
FLO
RF
MOD

FLO

•

RF

Provide the required DC input
voltage. See section 2.3.1.
Provide the required minimum
coolant flow rate to the system. See
section 2.3.4.

MOD
DC

•

INT

•

•

Provide the required DC input
voltage. See section 2.3.1.
Check for open machine interlocks.

FLO
RF
MOD
DC

•

INT

•
•

FLO
RF
MOD
DC

The DC supply is not present.

INT

•

•
•
•

Provide the required DC input
voltage. See section 2.3.1.
Provide the required minimum
coolant flow rate to the system. See
section 2.3.4.
Check for open machine interlocks.
Check the DC power supply
connection to the RF power supply.
Check the DC power supply.

FLO
RF
MOD

4. Diagnostics and troubleshooting

14906-0227-00 REV 3

4.2. Status indicator diagnostics — AOM module
Table 13 - Status indicator diagnostics — AOM module
Indicator display

StatusActionAOM

Normal operation

No action required.

AOMAOM demand signal out of specification

•
•

AOM

AOM fault or AOM thermal trip activated •••Ensure the AOM demand signal pulse
width is >1µs.
Ensure the AOM demand signal
repetition frequency is ≤240kHz
Switch off the system and allow it tocool down.
Check the AOM fuse. See section 5.2.
If the problem persists, contact
Luxinar Aftersales.

4.3. Status indicator diagnostics — Control modes
Table 14 - Status indicator diagnostics — AOM lasers
Indicator display
OP
DIOD

StatusAction••

Diode pointing laser disabled.
Shutter closed.

•••

Diode pointing laser enabled.
Shutter closed.

Apply a high (5–24V) signal to U1, pin 1
to enable the shutter.

••

Diode pointing laser disabled. (1)Shutter open.

Normal system operation for External
Modulation mode.

••

Diode pointing laser enabled.
Shutter fault.

Contact Luxinar Aftersales.

•Internal Modulation mode
selected.
Diode pointing laser disabled.
Shutter closed.

•

Internal Modulation mode
selected.
Diode pointing laser enabled.
Shutter closed.

Apply a high (5–24V) signal to U1, pin 1
to enable the shutter.

Normal system operation for Internal
Modulation mode.

•

SHTR
OP
DIOD

Apply a high (5–24V) signal to U1, pin
21 to enable the diode pointing laser.
Apply a high (5–24V) signal to U1, pin
1 to enable the shutter.

SHTR
OP
DIOD
SHTR
OP
DIOD
SHTR
OP
DIOD
SHTR

•
•

OP

•

DIOD
SHTR

•
•

OP

•

Internal Modulation mode
selected.

••

Diode pointing laser disabled. (2)Shutter open.

DIOD
SHTR

•

Apply a high (5–24V) signal to U1, pin
21 to enable the diode pointing laser.
Apply a high (5–24V) signal to U1, pin
1 to enable the shutter.

1. The diode pointing laser is internally disabled once the shutter is open.
2. The diode pointing laser is internally disabled once the shutter is open.

906-0227-00 REV 3

15

4. Diagnostics and troubleshooting

Indicator display
OP
DIOD

StatusAction•Contact Luxinar Aftersales.

Internal Modulation mode
selected.
Diode pointing laser enabled.
Shutter fault.

SHTR

•
•

OP

Internal mode selected.

OP

Service or external PWM mode selected. Service use only.

4. Diagnostics and troubleshooting

Normal operating status for AOM lasers.

16

906-0227-00 REV 3

5. Routine maintenance
The SR AOM has been designed to be low maintenance. Internal routine maintenance procedures are
not required. The system's sealed construction and limited number of moving parts ensures trouble freeand reliable operation.

5.1. General cleaning

WARNING
Laser radiation and electrical hazards
Use of controls or adjustments or performance of procedures other than those specified herein
may result in hazardous laser radiation exposure. This is a Class 4 (Class IV) laser and the beam isinvisible to the eye.
Please review all safety instructions and precautions given in the Safety chapter before
attempting to operate or service this system.
Always ensure that the laser system is switched off and isolated from the mains supply before
attempting any cleaning or maintenance procedures.

••

The external surfaces of the system can be cleaned with a mild detergent. It is advisable to use adamp cloth to facilitate the cleaning of the external cabinets, etc.
Take care not to allow entry of water into any of the electrical cabinets or onto the output window
or final beam delivery optic.

5.2. Pre-ioniser and AOM fuse replacement

DANGER
Risk of electric shock
Ensure that the equipment is disconnected from the mains supply before replacing the fuse.

3
2

1
1

Cover fixing screw

2

Cover

3

AOM fuse holder

Figure 15 - Pre-ioniser and AOM fuse locations

906-0227-00 REV 3

17

5. Routine maintenancePre-ioniser fuse
1.
2.
3.

Disconnect the equipment from the mains electrical supply.
Remove the cover (2) from the rear end of the laser by unscrewing the fixing screw (1).
Remove the faulty fuse (PI).

PI

4.
5.

Fit a replacement fuse of the same size and type.
Fuse specification: 20mm, T1A250V (Luxinar part number 552-0007-00)
Replace the cover and secure it with the fixing screw.

AOM fuse1.
2.
3.

Disconnect the equipment from the mains electrical supply.
Unscrew the fuse cap (3) and withdraw the faulty fuse.
Fit a replacement fuse of the same size and type.
Fuse specification: 20mm, T8A250V (Luxinar part number 552-0067-00)
4. Replace the fuse cap.
Note: If a fuse fails again after replacement, this may indicate a more serious fault. For more information
and advice, contact Luxinar Aftersales.

5.3. Cooling system contamination
If the cooling water is contaminated with bacteria or has been treated with other chemicals it will benecessary to clean the cooling circuit:
The pH value, conductivity and dissolved solids levels can be measured using a portable meter. The
bacterial contamination level can be checked using a test kit. For more information and advice, contact
Luxinar Aftersales.
Pay particular attention to the instructions provided by the manufacturer of the NALCO water treatment
kit.
1. Drain off the contaminated cooling water.
Ensure that disposal of all the materials used in this product is conducted according to all local andnational regulations.
2. Flush the cooling water circuit with tap water by filling and draining once only.
3. Mix tap water with deionised water in a 1:1 ratio and fill the cooling water circuit.
4. Add a NALCO biocide water treatment kit and mix well with the cooling water.
5. Operate the system for two to four days, then drain off the cooling water.
6. Flush the cooling water circuit twice.
7. Fill the cooling system with fresh deionised water and add the contents of a fresh NALCO water
treatment kit.

5.4. Frost protection
If the cooling system or chiller which supplies the cooling for the laser system is located in an area
where the temperature may drop below 0°C, then the cooling circuit must be equipped with a winterproof heating tank to prevent the cooling water temperature dropping below 15°C.

5. Routine maintenance18906-0227-00 REV 3

6. Installation
6.1. Installation procedure
Before unpacking the laser, prepare for the installation by making sure that the required equipment,
resources and materials are available. Carefully inspect the package contents for shipment damage andnotify Luxinar immediately if any damage is found.
• The means to transport and lift the laser into position. See section 2.3.3 for equipment weights.
• A flat surface with prepared fixing locations to match the laser mounting feet. See section 6.2.1.
• A DC power supply supplied by Luxinar or sourced locally.
• A beam delivery system and supports with a prepared connection for the laser output window
mounting point.
• A source of cooling water or a chiller for laser cooling. See section 6.2.3.
• A source of high purity nitrogen or compressed air to provide a positive purge pressure for the laser
optics. See section 6.2.4.
• Emergency stop interlock circuit.
• Laser control interface circuitry.
Perform the following steps to install the laser:
1. Carefully unpack the laser and place it on the prepared mounting surface, then fasten it in placeusing M8 bolts. Do not remove the protection cap from the laser output window at this stage.
See section 6.2.1.

WARNING
Heavy equipment — risk of severe lumbar injury
The weight of the laser head supply exceeds the single person lift limit of 18kg, as specified
in EN 61010-1:2010+A1:2019. Ensure a minimum of two people lift the laser head or thatsuitable lifting equipment is employed.

Suitable lifting points are the base of the laser resonator and AOM module.
2.

3.

4.

906-0227-00 REV 3

Connect the laser to the cooling water source or chiller using 10mm OD tubing (see section 6.2.3).
To connect the cooling tubing:a. Push the tube into the connector until it reaches the stop. Pull back on the tube to ensure thatthe connector has gripped the tube firmly.
b. To remove the tube, press the release ring on the end of the connector end and pull out the
tube.
Connect the optics purge gas supply using 6mm OD tubing (see section 6.2.4. To connect the gas
purge tubing:a. Push the tube into the connector until it reaches the stop. Pull back on the tube to ensure thatthe connector has gripped the tube firmly.
b. To remove the tube, press the release ring on the end of the connector end and pull out the
tube.
Connect the laser to the DC power supply.

19

6. Installation

DANGER
Exposed terminals — risk of electrocution
Switch off and disconnect the equipment from the mains electrical supply before exposing
electrical terminals. Only trained and authorised personnel should make electricalconnections.
5.
6.
7.
8.

Connect the DC power supply to the mains. See section 6.2.5.
Connect the emergency stop interlock circuit.
Connect the control interface circuitry.
Test the laser output before fitting the beam delivery.
Place a suitable beam block or power monitoring device in the beam path. Do not place it close to
optical surfaces to avoid risk of contamination by evaporated material.

WARNING
Hazardous laser radiation
Always wear protective eyewear matched to the emission wavelength and output power ofthe laser. Instruct all personnel in the vicinity to wear identical protective eyewear.

9.

Mount the beam delivery and connect it to the laser output window using the prepared connector.
See section 6.2.6.

6.2. Unpacking, mounting and connections
Refer to section 2.3 for details of weights and dimensions.

6.2.1. Mechanical fixing
Secure the laser to the host machine using the three mounting feet on the base. Each mounting foot has
an M8 threaded hole and an open-ended slot suitable for an M8 bolt.
Mounting position dimensions are shown in the following drawings:

SR 10 AOM

6. Installation

20

906-0227-00 REV 3

SR 25 AOMWARNING
Risk of optical damage and shutter failure
To ensure correct operation of the laser and shutter, the laser must be mounted in one of theapproved orientations identified by check marks in the following figure. All other orientations areprohibited.

X

X

X

X

X

X

Figure 16 - Correct and incorrect mounting orientations

906-0227-00 REV 3

21

6. Installation

70.0

6.2.2. Laser output aperture location

87.3

6.2.3. Coolant connections and pipework
The laser tube/DC power supply and the AOM module are served by independent cooling water circuits
which are each protected by separate flow sensors. This provides two scenarios for cooling the system:
Important!
If the optional Luxinar DC power supply is fitted, the coolant must flow through the power supply
before the laser resonator.

Scenario 1 — Single chiller
All modules are connected to a single chiller. The AOM module is cooled using a branch circuit fittedwith a pressure regulator.

6. Installation

22906-0227-00 REV 3

1
3

2

1

Coolant in2

Coolant out

3

DC power supply

Figure 17 - Single chiller coolant connections
Table 15 - Chiller flow requirements
Flow (L/min)

906-0227-00 REV 3

SR 10 AOMSR 25 AOM

Minimum overall flow

≥6

≥7

Recommended overall flow

≥8≥9Minimum flow for AOM module branch circuit

≥2

≥2

23

6. Installation

Scenario 2 — Dual chillers
Separate chillers are provided for the laser resonator/DC power supply and for the AOM module.

4
5
2
1

3

1

Coolant in — laser/DC power supply

2

Coolant out — laser DC power supply

3

DC power supply

4

Coolant in — AOM module

5

Coolant out — AOM module

Figure 18 - Dual chiller coolant connections
Table 16 - Coolant flow requirements
Flow (L/min)

SR 10 AOMSR 25 AOM

Laser/DC power supply minimum flow

≥4≥5

Laser/DC power supply recommended flow

≥5

≥6

AOM module minimum flow

≥2

≥2

AOM module recommended flow

≥3

≥3

CAUTION
Risk of damage to optical components within the AOM module
The coolant pressure within the AOM module must not exceed 3bar. Higher pressures may
cause leakage within the module resulting in irreversible damage to optical components.

An inline pressure regulator, set to 3bar, is supplied with the system and must be fitted to thecoolant inlet pipe as shown in the following figure. The pressure regulator is directional and must be
fitted with the arrow in the same sense as the coolant flow (pointing toward the inlet connector).

6. Installation

24906-0227-00 REV 3

Figure 19 - AOM module pressure regulator

1

2
3

7

4

6

5

Figure 20 - Coolant and gas purge connections
1

AOM module fuse

2

AOM module coolant inlet

3

AOM module coolant outlet

4

Optics purge gas inlet

5

Beam delivery mounting position6

Laser resonator/DC power supply coolant inlet

7

Laser resonator/DC power supply coolant outlet

Coolant inlet and outlet connectors are marked with the following symbols (direction depends on thelabel location):

906-0227-00 REV 3

25

6. Installation

•

Coolant in•

Coolant out

Important!
• Materials used in the external cooling circuit must be chosen to avoid corrosion. Never use
aluminium, zinc, mild steel or cast iron components. Suitable materials are stainless steel,copper, copper alloys and opaque plastics. Only use pipework that is impervious to light inorder to reduce the possibility of bacterial contamination of the cooling system.
• The coolant temperature must be kept above the dew point in order to prevent formation ofcondensation on internal laser components.
•
Completely drain the cooling system before shipment or storage.

6.2.4. Beam delivery optics purge gas
If the internal or external beam delivery is contaminated with fume, water vapour or debris then thesecontaminants can absorb the laser energy and cause laser power fluctuations and steering of the laser
beam. In severe cases, laser optics can be contaminated and damaged.
The laser internal beam delivery is fitted with an optics purge system using contaminant-freecompressed air or nitrogen.
A non-return check valve is fitted to the internal beam delivery. The check valve opens and allows theexcess purge pressure to escape.
Once the purge pressure has dropped to the correct pressure, the valve will close automatically,
preventing dust, moisture and contaminants from entering the optical system.

6.2.5. Electrical power connections
The laser requires a 50V DC power supply, either supplied locally or available from Luxinar. For
specifications refer to section 2.3.1.
The connecting cable cross-section depends on the laser model and cable length. Refer to the following
table for cable selection.
Table 17 - DC power supply cable specification

6. Installation

Model

Cable length

Cross-section

SR 10 AOM

Up to 10m

16mm²

SR 10 AOM

10m up to 16m maximum

25mm²

SR 25 AOM

Up to 4m

16mm²

SR 25 AOM

4m up to 6m maximum

25mm²

26

906-0227-00 REV 3

DANGER
Risk of electric shock or severe damage to the equipment
Ensure that the equipment is disconnected from the mains supply before making thisconnection.
Respect the polarity of the terminals on the power supply and the laser.

To connect the cables to the laser:
1. Remove the cover (2) from the rear end of the laser by unscrewing the securing screw (1).

3
2

1
1

Cover fixing screw

2

Cover

3

AOM fuse holder

Figure 21 - Pre-ioniser and AOM fuse locations

The terminals are marked as +VE (2) and Ground (1).

1
2

0V
+50V

2.
3.

906-0227-00 REV 3

Clamp the cables securely in the terminals using the two clamp screws on each terminal.
Replace the cover and secure it with the securing screw.

27

6. Installation

6.2.6. Beam delivery

CAUTION
Risk of damage to the laser output window mountThe laser output window mount is not capable of supporting a beam delivery. Always provide
strong and stable mechanical support for the beam delivery and other external optics.

Important!
Remove the blanking cap from the output window before attempting to attach the beam
delivery.

70.0

Attach the beam delivery to the four M5 x 8Dp mounting holes around the output window mount. The
holes are equi-spaced on a 44.0mm pitch circle diameter.

87.3

Figure 22 -Note: SR AOM lasers have a visible light laser diode pointer to assist with beam delivery alignment. The
rated power of the laser diode pointer is 4mW.

6. Installation

28

906-0227-00 REV 3

WARNING
Class 3R visible laser radiation
Avoid eye exposure to direct and scattered radiation.

906-0227-00 REV 3

29

6. Installation

6. Installation30

906-0227-00 REV 3

7. Transport and recommissioning
Before transporting the laser, observe the following precautions:• Completely drain the laser cooling system to prevent damage during shipping. Use clean compressed
air, at a maximum pressure of 2bar, to blow out all traces of coolant in the cooling system pipework.
Failure to remove coolant from the system prior to transport can cause damage to the laser.
Damage caused in this way will invalidate the warranty.
• If the external beam delivery has been removed, replace the output window protection cap toprevent damage or contamination during shipping.

906-0227-00 REV 3

31

7. Transport and recommissioning7. Transport and recommissioning

32

906-0227-00 REV 3

8. Interfacing
User interface connections for SR AOM lasers are made through the 25-pin and 15-pin connectors on
the rear panel. Pin connections depend on the laser version.
Important!
Under certain conditions, it may be possible for power cables carrying high voltages and currents
to emit electrical noise levels that may interfere with control cable signals.
To eliminate the possibility of interference, control signal cables must be screened and routed
along a different path to power cables.
Ensure that high quality screened cables and connectors are used, and that the cable screen isconnected to ground.

Figure 23 - U1 and U2 connector locations
Table 18 - U1 pin designations
Pin N°

FunctionI/O type

Signal

1

Shutter enable

Input

5–24V

2

User indicator

Output, open drain

5–24V @ 50mA

3

Shutter open

Output, open drain

5–24V @ 50mA

4

GroundGround—5

Shutter closed 1

Output, open drain

5–24V @ 50mA

6

GroundGround—7

DC voltage OK

Output, open drain

5–24V @ 50mA

8Energy demand

Input

5–24V

9

Compensation disable

Input

5–24V

10

Reflected RF signal

Output, open drain

0–3V analogue

11

Forward RF signal

Output, open drain

0–3V analogue

12

RF enable

Input

0V/5–24V

13

Not used——

906-0227-00 REV 3

33

8. Interfacing

Pin N°

FunctionI/O type

Signal14

Not used——15

Overmodulation

Output, open drain

0–5V

16

+ VSWR status

RS422 output (+)

0.5–3.5V

17- VSWR status

RS422 output (-)

3.5–0.5V

18

TX

RS232 output-6 to +6V

19

External interlock return

Input

5–24V

20

External interlock

Output5V @ 50mA

21

Diode enable

Opto-isolated input

5–24V

22

RX

RS232 input-6 to +6V

23

Shutter closed 2

Output, open drain

5–24V @ 50mA

24

Laser enable

Input

0V

25

GroundGround—Energy demand signal

5V to 24V

8. Interfacing

34

906-0227-00 REV 3

Status monitoring signals
ZXMS6004FF

7

DC_VOLTAGE_OK
50mA

5V
16

1

15

2
ACPL-247

2K7 0603
GND

3

ZXMS6004FF

SHUTTER_OPEN
50mA

16

1

15

2
ACPL-247

2K7 0603
GND

5

ZXMS6004FF

SHUTTER_CLOSED1
50mA

14

3

13

4
ACPL-247

2K7 0603

23

GND

SHUTTER_CLOSED2ZXMS6004FF

50mA

12

5

11

6
ACPL-247

2K7 0603
GND

2

ZXMS6004FF

USER_INDICATOR
50mA

10

7

9

8
ACPL-247

2K7 0603
GND

Monitoring input and VSWR status

8
7
6

16

+VSWR_STATUS

17-VSWR_STATUS

5

RI+

VCC

RI-

RO

DO+

DI
GND

DODS8921M

1

5V

2
3
4
GND

5V
10K 0603

180R 0603

10K 0603

GND

VSWR status output (pins 16 and 17, RS422) — RF power supply or laser tube problem. Laser output
is reduced.

906-0227-00 REV 3

35

8. InterfacingEnable signals
Vin

Vout

2
120R 0603

1

16

2

15
ACPL-247

1

12

3

ADJ

LM317LZ
RF_ENABLE

Vin

Vout

2
120R 0603

5

12

6

11
ACPL-247

1

21

3

ADJ

LM317LZ
DIODE_ENABLE

LM317LZ
Vin

ADJ

3

Vout

2
120R 0603

3

14

4

13
ACPL-247

1

1

SHUTTER_ENABLE

GND

•
•
•

RF enable (pin 12)
Pull the input high (5–24V) to enable the laser.
Diode enable (pin 21)
Pull the input high (5–24V) to switch on the pointing laser.
Shutter enable (pin 1)
Pull the input high (5–24V) to enable the shutter.

External interlock

RS232 signals

8. Interfacing

18

RS232 Tx

22

RS232 Rx

14
13

T1 OUT

T1 IN

R1 IN

R1 OUT

11
12

ST232CD36

906-0227-00 REV 3

RF forward and reflection signal monitoring

8

5V
2

+

3

MC34072DG
7

6

4

10

MC34072DG
1

REFLECTED_RF

-5V

11

•
•

FORWARD_RF+

5

RF forward output (pin 11, analogue)
Signal proportional to the forward RF voltage.
RF reflected output (pin 10, analogue)
Signal proportional to the reflected RF voltage.

Overmodulation
5V

15

OVER_MODULATION

6

3

5

4
ACPL-227

10K 0603

GND

Active low output indicating overmodulation

Ground connection

4
6
25
GND

Table 19 - U2 pin designations
Pin N°

FunctionI/O type

Signal1

RF Fault

Output

5–24V @ 50mA

2

DC Fault

Output

5–24V @ 50mA

3

AOM Fault

Output

5–24V @ 50mA

4

Not used——5

Not used——

906-0227-00 REV 3

37

8. Interfacing

Pin N°

FunctionI/O type

Signal6

Interlock Fault

Output

5–24V @ 50mA

7

Ground (0V)

Ground—8

Ground (0V)

Ground—9

Diode Enabled

Output

5–24V @ 50mA

10

Flow Fault

Output

5–24V @ 50mA

11

Not used——

12

Modulation Fault

Ouput

5–24V @ 50mA

13

Not used——14

Not used——

15

Ground (0V)

Ground—Diagnostic signals

8. Interfacing

38906-0227-00 REV 3

Ground connection

8.1. Minimum interface connections for laser output
•
•
•
•
•
•

Connect the DC power supply.
Enable the external Interlock by connecting an interlock switch between U1, pins 19 and 20.
Enable RF enable by connecting 5–24V to U1, pin12.
Enable Shutter enable by applying a 5–24V signal to U1, pin1.
Enable Diode enable by applying a 5–24V signal to U1, pin 21 (for lasers fitted with the optional
diode pointing laser).
Enable the Laser enable by connecting U1, pin 24 to ground (0V).
Important!
The Laser enable signal must be switched to ground to enable laser operation but mustnot be permanently connected to ground. If laser operation is interrupted, a transition in theLaser enable signal must be received for in order to restart the laser.

•••

Connect the RS232 Tx and Rx on U1, pins 18 & 22 to the remote terminal (optional).
Connect the required 5–24V Energy demand signal to U1, pin 8.
Connect U1, pin 25 to ground.
5V
SHUTTER_ENABLE

5-24V

RS232_TX
EXTERNAL_INTERLOCK_RETURNENERGY_DEMAND
5-24V
RS232_RX
RS232
LASER_ENABLE
RF_ENABLE

GND
5-24V

GND

Figure 24 - SR AOM — minimum interface connections

8.2. RS232 serial interface
Refer to the Serial Interface Specification (part number 906-0109-00) for details of RS232 commands.
In addition, the following RS232 commands are used to monitor coolant status for SR AOM lasers:

906-0227-00 REV 3

39

8. Interfacing

ID

Description

Parameters

Reply

Comment

59

Water inlet temperature

N/A$59 <Temperature[3]> Returns the water inlet
temperature in hundreds of °C.

5A

AOM temperature andhumidity

N/A$5A<Temperature[3]><Humidity[3]>Returns the AOM temperaturein hundreds of °C.

5B

AOM water flow

N/A

$5B <Flow [3]>Returns the water flow inside
the AOM enclosure.

8.3. Open drain output usage
Open drain status outputs require a pull-up resistor and voltage source (5 – 24V) to be connected to themonitored output. When the signal becomes active, the output falls to 0V.
The following diagram shows a typical connection.
5-24V

R

Inactive: 5–24V
Active: 0V
Figure 25 - Typical open drain output connection

8.4. Control signal timings
The following control signal timings must be respected when starting up and operating SR AOM lasers.
0

100ms

200ms

300ms

400ms

DC powerInterlocks
User shutter enable
Shutter position
RF enable
Laser enable
Output power
AOM demand

Figure 26 - Control signal startup timing — Initial startup with all signals disabled

1.
2.

3.
4.

8. Interfacing

Enable DC power before any other function.
The User shutter enable signal will take the system from standby mode into execute modeand should be applied at least 80ms after DC power is enabled and DC power has stabilised. The
shutter will start to open immediately after the User shutter enable signal is applied andrequires 80ms to fully open.
The Laser enable signal can be applied once the shutter is fully open. The laser output power
into the AOM module then requires 200ms to stabilise before applying the AOM demand signal.
If required, Interlocks and RF enable signals can be applied before enabling DC power, as
shown in the following timing diagram.
40

906-0227-00 REV 3

0

100ms

200ms

300ms

400ms

DC powerInterlocks
User shutter enable
Shutter position
RF enable
Laser enable
Output power
AOM demand

Figure 27 - Startup timing — Interlocks and RF pre-enabled
Table 20 - Parameter settling times
Parameter

Description

Previous required input

Minimumsettling time

DC SETTLE

Minimum time for soft-start of the DC power
supply.

None

80ms

INT SETTLE

Minimum time for the Interlock signal topropagate through the system.

None

20ms

SHTR SETTLE

Minimum time for the shutter to open after
applying the User shutter enable
signal.

••80ms

RF SETTLE

Minimum time for the RF enable signal topropagate through the system.

None

20ms

MOD SETTLE

Minimum time between applying the Laser
enable signal and achieving stable laser
output into the AOM module.

•
•
•

200ms

•

DC powerInterlocks

DC powerInterlocks
User shutter
enableRF enable

The dual channel safety critical approach [EN:13849 Performance Level D] requires the system to react
to system conditions as follows:• When the external Interlock is disabled, User shutter enable and RF enable mustalso be disabled by the machine controller.
• When restarting the system with the external Interlock enabled, the control signal startup
timing sequence must be followed.

906-0227-00 REV 3

41

8. Interfacing8.5. Status indicators
The operational status of the laser is displayed by status indicator lamps on the laser rear panel.

Figure 28 - Laser with power feedback and shutter status indicators
Indicator name

Status monitoredDC

DC PSUINTInterlock

FLO

Coolant flow

RF

RF

MOD

ModulationOP

Operation mode

AOM

AOM

DIOD

Diode laser

SHTR

Shutter

8.5.1. Shutter reset
If an SR AOM laser experiences DC, Interlock, Coolant Flow, Shutter Fault or AOM Fault errors, laser
output will terminate and the shutter will close. Once any faults or errors have been rectified, aShutter Enable signal must be re-applied in order to restart the laser.

8. Interfacing

42906-0227-00 REV 3

Appendix A. Dimensional drawings
SR 10 AOM
885

22

70.0

224

269

87.3

10.0

290
38.2

15.0

8.5

75.0

270.0

10.0

763.253 x M8SR 25 AOM
22

947

70.0

224

269

87.3

10.0

290

37.8

15.0

906-0227-00 REV 3

8.5

75.0

270.0

10.0

825.253 x M843

A. Dimensional drawings

A. Dimensional drawings

44906-0227-00 REV 3

Appendix B. Coolant requirements and additives
The following requirements concerning water quality and permitted additives must be complied with.

B.1. Coolant quality
Table 21 - Coolant quality
Description

Value

Coolant typeDe-mineralised, deionised or distilled water withcorrosion inhibitor & anti-bacterial treatment

Conductivity<1000µS/cm

Total hardness<10ppm

pH value

7–8.5

Bacteria level<1000cfu/ml

The pH value, conductivity and dissolved solids levels can be measured with a portable meter and thebacteria level can be checked with a test kit. For more information contact your local Luxinar Aftersales
office.

B.2. Suspended particle removal
To remove particulate contamination, an in-line filter with a pore size of 50µm must be fitted as close as
possible to the laser coolant inlet. The filter should be regularly checked for blockages and cleaned or
replaced where necessary. This is particularly important after bacterial growth has been detected andanti-bacterial treatment applied. Luxinar can supply a 50µm water filter kit (part number 004-0498-00)
and replacement filter cartridges (part number 402-0011-00).
Water filter kit 004-0498-00 consists of a water filter housing, 50µm water filter cartridge and two ¾”
BSPT to ½” hose tail connectors. The water filter housing accepts 10” long filter cartridges with 1” inside
diameter and 2 ½” outside diameter. Remove the lower section of the filter housing and insert the filter
cartridge, making sure that the bottom of the cartridge is seated correctly in the housing. Reattach theupper and lower sections of the housing, using the included spanner to tighten. Attach the provided
hose tails (or other suitable water fittings) using thread sealing tape. Insert the filter assembly into thecoolant supply before the laser. Connect the water supply from the chiller to the “IN” port of the filter
housing and connect the “OUT” port of the filter housing to the laser, ensuring that the hoses are
securely fastened to the hose tails using hose clips or equivalent. The water filter housing includes amounting bracket which can be used to mount the filter to a suitable surface.
To change the filter cartridge, turn off and drain the coolant supply. Press the red button on the top of
the filter housing to release the internal water pressure. Remove the lower section of the housing using
the spanner if necessary. Remove the old filter cartridge and replace with a new 50 µm cartridge
following the instructions above.

906-0227-00 REV 3

45

B. Coolant requirements and additives

1

Water filter housing

2

Spanner350µm water filter cartridge

4¾” BSPT to ½” hose tail connectors

Figure 29 - Water filter kit components

Figure 30 - Assembled water filter

B. Coolant requirements and additives

46

906-0227-00 REV 3

1
1

IN from chiller

2

OUT to laser

2

Figure 31 - Water filter connections

B.3. Corrosion and anti-bacterial inhibitor
To prevent bacterial formation and corrosion of the cooling water circuit, Luxinar has tested andapproved a specialist water treatment kit which is manufactured by NALCO.
Three water treatment kits are available, dependant on the total volume of the cooling water circuit to
be used:Circuit volume

Reference

50–199L

Order No.: 480-Luxinar 20.88

200–350L

Order No.: 480-Luxinar 60.88

351–500L

Order No.: 480-Luxinar 100.88

Order water treatment kits directly from NALCO at:
Nalco Deutschland GmbH,
Solmstraße 41
60486 Frankfurt am Main
Germany
Tel.: +49 69 7934-0
Customer service tel.: +49 7141 703 216
E-mail: custserv.germany@nalco.com
NALCO are equipped to ship kits worldwide.
• Expiration period
Two years• Storage temperature
0–25°C• Disposal of used material
Ensure that the disposal of all the materials used in this product is conducted according to all local
and national regulations.
• Instructions for use
Completely empty both inhibitor bottles which are included with the NALCO kit into the coolingwater reservoir tank. After mixing the NALCO chemicals with the cooling water, the pH value should
be between 6.5 and 9.0.

906-0227-00 REV 3

47

B. Coolant requirements and additives

WARNING
Risk of injury to eyes
Use appropriate eye protection when handling chemicals used in the NALCO water treatmentkit.

•➢ NALCO 460-RS200 is a multi-metal corrosion inhibitor to ensure effective protection against
corrosion of stainless steel, copper and copper alloys and it also works as a bacteriostatic andhardness stabiliser.
➢ NALCO 7330 is a biocide which removes bacteria and organic contamination (algae and slime)
from the water circuit.
NALCO RS200 and 7330 are completely compatible with glycol. The glycol should be without any
inhibitor (concentration 30–35% glycol in demineralised water).
The use of inhibitors, biocides, other substances or hardness stabilisers other than the specialist
NALCO kit may cause premature failure of the laser. It is the user's responsibility to ensure that the
specification of any alternative additive is equivalent to that of the NALCO additive.
Cooling system maintenance
After six months of operation, drain off the coolant and refill with fresh water treated with theappropriate NALCO kit or equivalent anti-bacterial product, as specified in Table 21.
Ensure that the disposal of all the materials used in this product is conducted according to all local
and national regulations.

B. Coolant requirements and additives

48

906-0227-00 REV 3

Appendix C. Cooling system pressure drop curves

Pressure Drop (Bar)SR 10 AOM resonator and power supplies
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0

2

4

6

8

10

Flow (litres/min)

Pressure Drop (Bar)SR 25 AOM resonator and power supplies
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0

2

4

6

8

10

Flow (litres/min)

AOM module

Note: This pressure drop graph shows the drop through the AOM module with a 3bar pressure
limiting regulator fitted to the inlet of the AOM coolant circuit.

906-0227-00 REV 3

49

C. Cooling system pressure drop curves

SR 10 DC power supply

Pressure Drop (Bar)

2
1.5
1
0.5
0
0

2

4

6

8

10

Flow (litres/min)

SR 25 single-phase DC power supply

Pressure Drop (Bar)

2.5
2
1.5
1
0.5
0
0

1

2

3

4

5

6

7

8

Flow (litres/min)SR three-phase DC power supply
1.2

Pressure Drop (Bar)

1

0.8

0.6

0.4

0.2

0
0

2

4

6

8

10

12

Flow (litres/min)C. Cooling system pressure drop curves

50

906-0227-00 REV 3

Appendix D. DC power supply options
Note: This equipment is designed for overvoltage category II as defined within EN
61010-1:2010+A1:2019.

D.1. DC 3kW single-phase DC power supply
D.1.1. General description
The DC 3kW is a 3U, 19” rack mountable, DC 3kW power supply. (PSU)

Figure 32 - DC 3kW single-phase DC power supply

D.1.2. Specification
Table 22 - Dimensions, weight and cooling
Dimensions (mm) LxWxH

483x286x132 (3U rack height)

Weight11kg

Coolant type

Deionised water with anti-bacterial additive

Coolant pipe

10mm OD

Coolant flow rate

Refer to section 2.3.4.
483

317
286

57.0

132

466.3

100

1
1

Clearance for cabling and coolant pipes

Figure 33 - Overall dimensions

906-0227-00 REV 3

51

D. DC power supply options

Table 23 - Electrical specifications
DC 3kW
Input voltage range

230VAC ± 10% (single/bi-phase)

Mains input frequency range

50–60Hz

Mains input fuse rating

20A

AC inrush current (max.)

60A

Output voltage (DC)50V

Output current (max.)

62.5A

Power factor> 0.90 at full power

Power consumption (max.)

3kW at pulsed full power

Earth leakage current< 4mA

Important!
An external disconnect device must be fitted at the time of installation, and must be accessible
without needing to use a tool. This must be suitably located and easily reached and must be
marked as the disconnecting device for the power supply.

D.1.3. Installation
Mechanical installation
Using suitable fixings, mount the power supply within the OEM machine racking using the four
mounting holes shown in the following figure.
483

132

57.0

466.3

Figure 34 - Fixing locations

Mains AC power connections
Important!
Under certain conditions, it may be possible for high voltage and current cables to emit noise
energy levels that may interfere with control signal cables. To eliminate the possibility ofinterference, cables carrying control signals should be routed along a different path to power
cables.

The power supply is provided with a mains supply cable. If this cable needs to be replaced with alonger cable, ensure the replacement cable is of the correct rating for the power supply.
Note: The L1 and L2 terminals are internally fused by 16A µR fuses.

D. DC power supply options

52

906-0227-00 REV 3

DANGER
Risk of electric shock or severe damage to the equipment
Ensure that the equipment is disconnected from the mains supply before making thisconnection.

To replace the cable:
1. Remove the access panel on the rear of the power supply by unfastening the four fixing screws.

4
1

AC mains input

2

Coolant inlet

3

Coolant outlet

4

DC output to laser

3

1

2

Figure 35 - AC mains connection point

2.

Remove the supplied cable from the connector. and replace it with the alternative cable ineither single or bi-phase configuration.
• Single phase configuration
Connect the phase to the L1 terminal and neutral to the N terminal. Do not use the L2
terminal.

•

906-0227-00 REV 3

Bi-phase connection
Connect phase 1 to the L1 terminal and phase 2 to the L2 terminal. Do not use the N
terminal.

53

D. DC power supply options

Important!
Ensure that the earth connection is well-made in both cases.

DC laser supply cables
DC power cables must be securely fitted to the connectors provided on the rear of the power supply
and on the laser system.

0VDC+50VDCTO LASER (RF PSU)
Figure 36 - DC cable connections

DC power cables of the correct specification can be supplied by Luxinar.

Cooling system connections
The power supply requires a liquid cooling source. It is recommended that it is connected in series
with the laser system cooling circuit. The coolant connections are located on the rear of the power
supply. See section 6.2.3.

Figure 37 - Coolant connectors

The coolant inlet and outlet connectors are labelled as shown below.

Coolant IN

Coolant OUT

D. DC power supply options

54

906-0227-00 REV 3

D.1.4. Operation
The power supply has no user controls. When powered up, it will automatically carry out diagnostic
checks. If no faults are detected, the status indicators on the front panel all display green and the DC
output is enabled. 50VDC will be present.
If faults are detected, one or more status indicators will be off or displaying red/amber. For a statusindicator explanation, refer to the following table.
Indicator

Status definition
No AC voltage

AC

AC input OK
AC voltage out of range
PSU disabled

PSU ENABLED

PSU enabled
DC module offDC

DC module OK
DC module fault

FANS

Internal fans off
Internal fans OK
Internal fans fault
Temperature OK

TEMPERATURE

Temperature too highHumidity sensor not fitted
HUMIDITY

Humidity OK
Humidity too high906-0227-00 REV 3

55

D. DC power supply options

D.2. SR 25i single-phase DC power supply (005-0595-00)
D.2.1. General description
The SR 25i single-phase power supply is a free-standing AC to DC liquid cooled power supply. (PSU)

Figure 38 - SR 25i single-phase DC power supply

D.2.2. Specification

WARNING
Heavy equipment — risk of severe lumbar injury
The weight of the DC power supply exceeds the single person lift limit of 18kg, as specified in
EN 61010-1:2010+A1:2019. Ensure a minimum of two people lift the power supply or thatsuitable lifting equipment is employed.

Table 24 - Dimensions, weight and cooling
Dimensions (mm) LxWxH

511x371x176

Weight23kg

Coolant type

Deionised water with anti-bacterial additive

Coolant pipe

10mm OD

Coolant flow rate

Refer to section 2.3.4

Figure 39 - Overall dimensions

D. DC power supply options

56

906-0227-00 REV 3

Table 25 - Electrical specifications
SR 25i
Input voltage range

230VAC ± 10% (single/bi-phase)

Mains input frequency range

50–60Hz

Mains input fuse rating

40A

AC inrush current (max.)

120A

Output voltage (DC)50 ± 1V

Output current

120A

Power factor>0.95 at full power

Power consumption (max.)

6kW at pulsed full power

Earth leakage current<4mA

Important!
An external disconnect device must be fitted at the time of installation, and must be accessible
without needing to use a tool. This must be suitably located and easily reached and must be
marked as the disconnecting device for the power supply.

D.2.3. Installation
Mechanical installation
Using M8 screws, mount the power supply within the OEM machine racking by means of the four
mounting holes shown in the following figure.

Figure 40 - Fixing locations

906-0227-00 REV 3

57

D. DC power supply options

Mains AC power connections
Important!
Under certain conditions, it may be possible for high voltage and current cables to emit noise
energy levels that may interfere with control signal cables. To eliminate the possibility ofinterference, cables carrying control signals should be routed along a different path to power
cables.

The power supply is provided with a 6mm² mains supply cable. If this cable needs to be replacedwith a longer cable, ensure the replacement cable is of the correct rating for the power supply.

DANGER
Risk of electric shock or severe damage to the equipment
Ensure that the equipment is disconnected from the mains supply before making thisconnection.

To replace the cable:
1. Remove the access panel on the rear of the power supply by removing the seven screws.

Figure 41 - AC mains power connection point

2.

Remove the supplied cable from the connector and replace it with the alternative cable ineither single-phase or bi-phase configuration.
Important!
An earth connection is essential. Ensure that the earth wire is connected before
connecting the mains supply.

•Single-phase configuration
Connect the phase to the L1 terminal and the neutral to the N terminal. Do not use the L2
terminal.
L1
NE

D. DC power supply options

58N

906-0227-00 REV 3

•Bi-phase configuration
Connect the phase to the L1 terminal and phase 2 to the L2 terminal. Do not use the N
terminal.
L1
L2

N
L2

E

AC mains protection device locations
Remove the access panel on the side of the power supply to reveal the AC mains protection devices.
The Miniature Circuit Breaker (MCB) is a 40A type-B device. For correct operation, the reset levershould be in the up position with red visible in the MCB window.

1

2

1

Mains fuses for internal electronics circuits: 1A2

AC mains input MCB: 40A type-B

Figure 42 - AC mains protection devices

DC laser supply cables
DC power cables must be securely fitted to the connectors provided on the rear of the power supply
and on the laser system.
To laser system

Figure 43 - DC cable connection

DC power cables of the correct specification can be supplied by Luxinar.

DC fuse location
The internal control circuits are powered from the 50VDC output and are protected by a 20mm, 2A
fuse located in a fuse holder on the front panel.

Cooling system connections
The power supply requires a liquid cooling source. It is recommended that it is connected in series
with the laser system cooling circuit. The coolant connections are located on the front panel. See
section 6.2.3.

906-0227-00 REV 3

59

D. DC power supply options

OUT(to laser)IN

Figure 44 - Coolant connections

The coolant inlet and outlet connectors are labelled as shown in the following table.
Coolant IN

Coolant OUT

D. DC power supply options

60

906-0227-00 REV 3

D.2.4. Operation
The power supply requires a user input to enable it. When powered up, it will automatically carry out
diagnostic checks. If no faults are detected, then the DC power supply is ready for use. 50VDC will bepresent.
User controls and features are located at the top right corner of the front panel as shown below:

2

1

3
1

Fuse holder

2

Laser connector (15-pin D-connector)

3

LED status indicators

Figure 45 - Interface connector and controls

Fuse holder [1]This contains a 20mm, 2A fuse connected to the 50VDC output. Its function is to protect the internal
control electronics in the event of a fault.

Control connector (15-pin D-connector) [2]
The DC enable circuit is present on this connector. Link pins 13 and 14 using volt-free contacts, suchas a relay, to enable the power supply using a remote controller. To permanently enable the power
supply, fit the link provided (Luxinar part number 011-0172.00).
• Pin 13
DC enable return signal. Link to pin 14 to enable the power supply.
• Pin 14
12VDC @ 10mA supply. Link to pin 13 to enable the power supply.
Important!
Disconnecting the permanent or external link will disable the power supply and turn off the
50VDC output.

Table 26 - Control connector

906-0227-00 REV 3

Pin N°

FunctionI/O type

Signal1

DC_OK

Open-drain

5–24V @ 50mA

2

Reserved——

3

Reserved——

4

WARN_Humidity

Open-drain

5–24V @ 50mA

61

D. DC power supply options

Pin N°

FunctionI/O type

Signal5

Reserved——

6

Reserved——

7

Reserved——

8

Reserved——

9

FAULT_AC

Open-drain

5–24V @ 50mA

10

FAULT_DC

Open-drain

5–24V @ 50mA

11

FAULT_TEMP

Open-drain

5–24V @ 50mA

12

FAULT_FAN

Open-drain

5–24V @ 50mA

13

DC Enable 1

Volt-free contact

Return to pin 14

14

DC Enable 2

Volt-free contact

12V @ 10mA

15

Signal ground

Ground—Note: Open-drain status outputs require a pull-up resistor and a voltage source (5–24V) connected tothe monitored output. When the signal becomes active, the output is pulled to 0V.

LED status indicators [3]There are six status indicators to aid troubleshooting. Refer to section D.2.5 for details.

D.2.5. Troubleshooting
In normal operation, status indicators display green. If faults are detected, at least one indicator will be
off or displaying amber or red.

1

Indicator number
1

2

3

4

Indicator function

5

6

Status definition
AC supply voltage is within specified limits.

AC mains voltage status

AC supply fault.
2

PSU output is enabled.

50V DC enable status

PSU output is disabled.
3

50V output OK.

50V DC output status

50V output is disabled.
4Power supply temperature status

Temperature is within specified limits.
Over-temperature fault on one or more sensors.

5Power supply internal cooling fan
statusCooling fan is running at normal speed.
50V output is disabled.
Cooling fan is stopped or running slowly.

6 (1)Power supply humidity status< 90% relative humidity.
≥ 90% relative humidity.
≥ 95% relative humidity.

1. If fitted

D. DC power supply options

62

906-0227-00 REV 3

Note: LED indicators may flash during power up or power down.

906-0227-00 REV 3

63

D. DC power supply options

D.3. SR 25i three-phase DC power supply (016-0035-00)
D.3.1. General description
The SR 25i three-phase DC PSU is a free-standing/rack mountable AC to DC water cooled power supply.
(PSU)

Figure 46 - SR 25i three-phase DC power supply

D.3.2. Specification
Table 27 - Dimensions, weight and cooling
Dimensions (mm) LxWxH

512x149.2x88 (2U rack height)

Weight7kg

Coolant type

Demineralised, deionised or distilled water withcorrosion inhibitor and anti-bacterial additive

Coolant pipe

10mm OD

Coolant flow rate

Min 5.5 l/m Refer to section 2.3.4

Pressure

Maximum 6 bar

Protection class

IP21

D. DC power supply options

64

906-0227-00 REV 3

Figure 47 - Overall dimensions
Table 28 - Electrical specifications
SR 25i
Input voltage range

380-480VAC (47/63Hz) three-phase (2)Mains input fuse rating

15A

AC inrush current (max)50A

Output voltage (DC)50 ± 1V

Output current

110A

Power factor>0.90 at full power

Power consumption (max.)

5.5kW at full power

Earth leakage current<5mA

Important!
An external disconnect device must be fitted at the time of installation, and must be accessible
without needing to use a tool. This must be suitably located and easily reached and must be
marked as the disconnecting device for the power supply.

D.3.3. Installation
Mechanical installation
Using suitable fasteners, mount the power supply within the OEM machine racking using the six
mounting holes shown in the following figure.

2. No neutral connection is required. Connection to neutral will cause irreparable damage to the power supply.

906-0227-00 REV 3

65

D. DC power supply options

Figure 48 - Fixing locations

Mains AC power connections
Important!
Under certain conditions, it may be possible for high voltage and current cables to emit noise
energy levels that may interfere with control signal cables. To eliminate the possibility ofinterference, cables carrying control signals should be routed along a different path to power
cables.

The power supply is provided with a mains supply cable. If this cable needs to be replaced with alonger cable, ensure the replacement cable is of the correct rating for the power supply.

DANGER
Risk of electric shock or severe damage to the equipment
Ensure that the equipment is disconnected from the mains supply before making thisconnection.

Connect the three-phase cable to the L1, L2 and L3 terminals on the rear panel of the power supply.
Connect the earth cable to the M6 earth stud.

D. DC power supply options

66

906-0227-00 REV 3

2

1
1

L1

2

L2

3

L3

4

Earth

3

4

Figure 49 - Three-phase mains supply connections

Important!
An earth connection is essential. Ensure that the earth wire is connected before connecting
the mains supply.

CAUTION
Risk of irreparable damage to the power supply
Do not connect the power supply to neutral.

For improved EMC performance, the power supply earth stud will need a permanent bond strap
connection to earth.

906-0227-00 REV 3

67

D. DC power supply options

Figure 50 - Three-phase earth connections

DC laser supply cables
DC power cables must be securely fitted to the M6 terminals provided on the rear panel of thepower supply.

1
1

0V

2

50V DC

2

Figure 51 - DC cable connections

D. DC power supply options

68

906-0227-00 REV 3

Power supply terminal

Terminal

+

50VDC

-

0VDC

Ensure correct polarity of cable when connecting to the power supply terminals.
DC power cables of the correct specification can be supplied by Luxinar.

1
1Ferrite core

Figure 52 - System wiring

Important!
Ensure correct polarity when connecting the DC PSU to the SR laser system.

For improved EMC performance, a ferrite core (Luxinar 543-0043-00) will need connecting to the DC
cables, close to the DC Power supply terminals

Cooling system connections
The power supply requires a liquid cooling source. It is recommended that it is connected in series
with the laser system cooling circuit.
The coolant connections are located on the rear of the power supply.

906-0227-00 REV 3

69

D. DC power supply options

1
1

Coolant IN

2

Coolant OUT

2

Figure 53 - Coolant connections

D.3.4. Operation
The power supply requires user input to operate. When powered up, the power supply willautomatically carry out diagnostic checks. This will take a maximum of 7 seconds to complete. If no
faults are detected, then the DC power supply is ready for use.
On the rear of the power supply, there is 1 D-type connector.

D. DC power supply options

70

906-0227-00 REV 3

2

1

1

Interface (9-pin D-connector)

2

Power supply indicators

Figure 54 - Rear panel connections
Table 29 - Interface (9 pin D-type)
Pin N°

FunctionI/O type

Signal1

DC_Fault

OutputOpen collector

2

EXT_CAN-Not used—

3

PSU_Enable

Input

Active Low (return to pin 9)

4

INT_CAN-Not used—

5

INT_CAN+Not used—

6

Temperature_Fault*

OutputOpen collector

7

EXT_CAN+Not used—8

AC_Fault

OutputOpen collector

9

RTN

Note: *Warning. If the internal temperature of the DC power supply exceeds safe operating limits, the50V will turn off. When the internal temperature of the power supply cools to safe operating conditions,the 50V will turn back on.
To enable the DC output of the power supply, pins 3 and 9 must be linked. Removing the link will turnoff the 50V output. It will take <50ms for the output of the DC PSU to reach 50V once PSU enable ismade. To permanently enable the 50V output, fit the link provided (Luxinar part number 011-0219-00).

D.3.5. Power supply indicators
The LED indicators on the front panel provide information about the power supply operating status.

906-0227-00 REV 3

71

D. DC power supply options

AC
OK

DC
OK

Figure 55 - PSU LED indicators
Table 30 - PSU LED indicators
LED

ColourMeaning

AC OK

Red

AC input voltage out of range

Green

AC input voltage within range(correct operation)OffNo AC input voltage detectedRed

DC output voltage out of range

Green

DC output voltage present (correct
operation)OffDC output voltage disabled

DC OK

D. DC power supply options

72

906-0227-00 REV 3

Please note that while every effort has been made to ensure that thedata given in this document is accurate, due to a policy of continuous
improvement, the information, figures, illustrations, tables, specificationand schematics contained herein are subject to change without notice.

Class 4 invisible laser radiation
Avoid eye or skin exposure to direct or
scattered radiation.

Luxinar Ltd
Meadow Road
Bridgehead Business Park
Kingston upon Hull
HU13 0DG UK
Registered in England: 3477444

Tel: +44 1482 650088
sales.uk@luxinar.com
www.luxinar.com