MOVIA, 2-Axis Scan HeadUser Manual

Read carefully before using.
Retain for future reference.

ENGINEERED BYCAMBRIDGE TECHNOLOGYTABLE OF CONTENTS
1

Important Information
1.1
1.2
1.3

2

3

3.3

3.4

5

8

Required System Parts ...................................................................................................... 8
Recommended Accessories (Customer Supplied) ................................................9
Laser Shutter.......................................................................................................................... 9
Installation Instructions.................................................................................................... 10
3.3.1
Unpack the MOVIA Scan Head..................................................................... 10
3.3.2 Mount the Scan Head ....................................................................................... 10
3.3.3 Attach the Power/Data Cable to the Scan Head .................................. 11
3.3.4 Electrical – Power Supply Requirements ................................................. 14
3.3.5 Apply Power to the Scan Head .................................................................... 14
3.3.6 Install the F-Theta Lens and Required Lens Spacer ........................... 16
3.3.7 Perform Scan Head Calibration.................................................................... 16
Set up for Initial Use .......................................................................................................... 18

Troubleshooting and Maintenance
4.1
4.2

5

Principles of Operation ...................................................................................................... 5
Product Use ............................................................................................................................ 6
Product Configuration ....................................................................................................... 6

Installation
3.1
3.2

4

Safety Symbols ...................................................................................................................... 1
Safety Labels .......................................................................................................................... 2
Customer Support ............................................................................................................... 3

Product Overview
2.1
2.2
2.3

1

19

Troubleshooting.................................................................................................................. 19
Optic Care ............................................................................................................................. 21

Warranty Statement

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LIST OF FIGURES
Figure 1: System Diagram .................................................................................................................... 5
Figure 2: Beam Direction ..................................................................................................................... 6
Figure 3: Product Label ........................................................................................................................ 7
Figure 4: Location of Optical Beam Hazard Zones and Recommended Shutter
Location ...................................................................................................................................................... 9
Figure 5: Location of Metric Dowel Pin Holes ........................................................................... 11

LIST OF TABLES
Table 1: Cable Channel Usage ........................................................................................................... 11
Table 2: Pin Assignments................................................................................................................... 12
Table 3: Recommended Delay Settings for Initial Use .......................................................... 18
Table 4: Scan Head Symptoms, Causes, and Recommended Actions .......................... 19

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1

IMPORTANT INFORMATIONIMPORTANTFor your protection, carefully read these instructions before installing andoperating the scan head.
Retain these instructions for future reference.
Cambridge Technology reserves the right to update this user manual at any
time without prior notification.
If product ownership changes, this manual should accompany the product.

1.1

SAFETY SYMBOLSDANGER
Indicates a hazardous situation which, if not avoided, will result in serious injury
or death.
Its use should be limited to the most extreme situations.

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

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1 Important Information

1.2 Safety Labels

CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor ormoderate injury.

IMPORTANT
Indicates information considered important but not directly hazard related (e.g.
security, hygiene, or equipment or property damage).

1.2

SAFETY LABELSDANGER
Laser radiation
can cause severe retinal and corneal burns, burns on the skin, and may pose afire risk.
• To avoid injury and reduce risk of fire, please follow the control measuresand safety guidelines provided by the laser’s manufacturer, and thoseestablished by your Laser Safety Officer (LSO), Radiation Safety Officer(RSO), or safety department of your business or institution.

ESD WARNING
Electrostatic discharge and improper handlingcan damage MOVIA scan head’s electronics.
• Keep the equipment sealed until it is located at a proper static control
station.

A proper static control station should include:•

A soft grounded conductive tabletop or grounded conductive mat on thetabletop.

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1.3 Customer Support•

A grounded wrist strap with the appropriate (1 MΩ) series resistor
connected to the tabletop mat and ground.

•

An adequate earth ground connection, such as a water pipe or AC ground.

•

Conductive bags, trays, totes, racks, or other storage.

•

Properly grounded power tools.

•

Personnel handling ESD items should wear ESD protective garments andground straps.

IMPORTANTElectrostatic discharge and improper handlingcan damage MOVIA scan head’s electronics.
• Ship equipment returned to the factory in anti-static packaging.

IMPORTANT
Customers assume all responsibility for maintaining a laser-safe working
environment.
Original equipment manufacturer (OEM) customers assume all responsibility for
CDRH (Center for Devices and Radiological Health) certification.

1.3

CUSTOMER SUPPORTBefore contacting Novanta Photonics for assistance, review appropriate sectionsin the manual that may answer your questions.
After consulting this manual, please contact one of our worldwide offices between
9 AM and 5 PM local time.
Americas, Asia PacificNovanta Headquarters, Bedford, USA
Phone: +1-781-266-5700
Email: photonics@novanta.com

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1 Important Information

1.3 Customer Support

Europe, Middle East, Africa
Novanta Europe GmbH, Wackersdorf, Germany
Phone: +49 9431 7984-0
Email: photonics@novanta.com
Milan, Italy
Phone: +39-039-793-710
Email: photonics@novanta.com
China
Novanta Sales & Service Office, Shenzhen, China
Phone: +86-755-8280-5395
Email: photonics.china@novanta.com
Novanta Sales & Service Office, Suzhou, China
Phone: +86-512-6283-7080
Email: photonics.china@novanta.com
Japan
Novanta Service & Sales Office, Tokyo, Japan
Phone: +81-3-5753-2460
Email: photonics.japan@novanta.com

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2

PRODUCT OVERVIEW

MOVIA scan heads are used as part of a galvanometer-based laser system andsteer optical beams on a XY image field (2D) for all possible laser applications. See
Figure 1

Figure 1: System Diagram

2.1

PRINCIPLES OF OPERATION

In a MOVIA scan head, two galvanometers scanners with mirrors synchronize androtate to steer the laser beam across the XY field.
The beam enters the scan head through the input aperture and encounters the
X mirror. The mirror-galvo pair is responsible for deflecting the beam, as directed,
along the X axis of the scanning field. The laser beam then encounters the
Y mirror, which deflects the beam along the Y axis.
With the use of a controller like Cambridge Technology’s ScanMaster Controller,
you can accurately steer the laser beam anywhere within the usable field. See
Figure 2.

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2 Product Overview

2.2 Product Use

Figure 2: Beam Direction

2.2

PRODUCT USE

The MOVIA scan head is delivered as an OEM component for integration into alaser scanning system.
Customers must know and apply the rules and regulations for safe operation oflasers when installing and operating the scan head and the system in which it isused. Since Cambridge Technology has no influence over the employed laser orthe overall system, the customer is solely responsible for the laser safety of theentire system.
The system manufacturer bears responsibility for complying with the standards
and guidelines required for the CE (European Conformity) label. Please contact
Cambridge Technology for further information about this product and applicableguidelines.

2.3

PRODUCT CONFIGURATION

To identify the configuration of your product, refer to the product label located on
the side of the scan head. Information on the product label (Figure 3) identifies
the model name, laser wavelengths compatible with the scan head (λ), partnumber (PN), and serial number (SN) of your product.

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2 Product Overview

2.3 Product Configuration

Figure 3: Product Label

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3

INSTALLATION

3.1

REQUIRED SYSTEM PARTS

You will need the following components to set up the MOVIA scan head with thegalvanometer-based laser system:

1•

Mounting Plate•

Mounting Hardware (4× M5 screws, 2× 4 mm dowel pins)•

Beam Conditioning Optic, such as a Beam Expander or Collimator(optional)•

F-Theta Lens•

F-Theta Lens Spacer•

System Controller 1•

PC or Laptop•

Power Supply (±15 V)•

Power/Data Cable 1•

MOVIA Scan Head

•

Laser

Contact us for controller system (ScanMaster Controller) and Power/Data cable

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3.2

3.2 Recommended Accessories (Customer Supplied)

RECOMMENDED ACCESSORIES (CUSTOMER SUPPLIED)LASER SHUTTERThe MOVIA scan head does not contain a shutter or device to decrease the laser
output power. As each laser is unique, it is your responsibility to install a shutter or
attenuator as required; please refer to US FDA Code of Federal Regulations (CFR)
1040.10 for additional information.
The beam shutter should be installed between the laser and the MOVIA scan head.
Figure 4 shows the laser’s internal and external optical path, the location of thehazard zones as the optical beam passes through the scan head, and therecommended location of the shutter.
Cambridge Technology strongly recommends that customers obtain lasers with avendor-supplied shutter mechanism. If not possible, consult your laser vendor todesign or acquire a proper safety shutter.

Figure 4: Location of Optical Beam Hazard Zones and Recommended Shutter
Location

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3.3

INSTALLATION INSTRUCTIONS

3.3.1

UNPACK THE MOVIA SCAN HEAD

3.3 Installation Instructions

ESD WARNING
Electrostatic discharge and improper handlingcan damage MOVIA scan head’s electronics.
• Keep the equipment sealed until it is located at a proper static control
station.

After receiving this product:•

Carefully unpack the contents from the box (verify content with packing list
included with unit).

•

Protect the scan head from dust and other contaminants.

•

Save the shipping container and packaging material in case you need toreturn the unit for service.

3.3.2

MOUNT THE SCAN HEAD

Attach the scan head to the mounting plate using the mounting hardware.
The scan head has 2 metric dowel pin holes and 4 tapped mounting holes. See
Figure 5.

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3.3 Installation Instructions

Figure 5: Location of Metric Dowel Pin Holes

3.3.3

ATTACH THE POWER/DATA CABLE TO THE SCAN HEAD

With power off, use the power/data cable to connect the MOVIA scan head to thesystem controller and ±15 V power supply. It is recommended that the power
supply voltages are verified before connecting the cable to the head to avoid any
damage.
The usage of cable channels and pin assignments are described in Table 1 andTable 2.
Table 1: Cable Channel Usage
Channels

Behavior

CLOCK

The Clock is transmitted by the position data generator,
20 cycles per frame. The nominal frequency is 2 MHz.

SYNC

The frame Sync is a single logical "0" pulse that occurs once
per frame.
It is transmitted by the position data generator one clock
cycle prior to the first bit of the frame.

STATUS

The status channel provides error messages when scanner or
servo exceptions occur.

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3.3 Installation Instructions

Channels

Behavior

X Y Z DATA

The vector controller used to drive the scan head will deliver
set values for X, Y and the optional Z axis.
The X, Y, and Z Data are three 20-bit serial data streams thatconsist of one 3-bit control code, one 16-bit position word
(unsigned, MSB first), and an even parity bit.
Improper control codes, parity error, or a missing sync on
the 21st clock cycle will cause the position data word for theaffected channel to be discarded. 001 is the only supported
control code.

GROUND AND
VOLTAGE

The ground and voltage channels provide power to the scanhead.

Table 2: Pin Assignments
Interface

Pin Connection

Usage

1

-SENDCLK

CLOCK

2

-SYNC

SYNC

3

-X

DATA

4

-Y

DATA

5

-Z

DATA

6

-STATUSSTATUS

7N/C

RESERVED8N/C

RESERVED

9+V

VOLTAGE

10+V

VOLTAGE

11

GND

GROUND

12-V

VOLTAGE

13-V

VOLTAGE

14+SENDCKCLOCK

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3.3 Installation Instructions
Interface

Pin Connection

Usage

15

+SYNC

SYNC

16

+X

DATA

17

+Y

DATA

18

+Z

DATA

19

+STATUSSTATUS

20

N/C

RESERVED21

N/C

RESERVED

22+V

VOLTAGE

23

GND

GROUND

24

GND

GROUND

25-V

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3.3.4

3.3 Installation Instructions

ELECTRICAL – POWER SUPPLY REQUIREMENTS

The maximum root mean square (rms) current required is approximately 3 amps,
however peak current demands may approach 10 amps on certain models.
MOVIA scan heads are tuned for ±15 V.

IMPORTANT
Higher voltage than specified
may damage the servo.
• Use the correct voltage for the scan head.

3.3.5

APPLY POWER TO THE SCAN HEAD

Before powering on the overall system, confirm that you have the system
controller (or ScanMaster Controller) configured correctly to work with your laser.
For the ScanMaster Controller (SMC) refer to the SMC Quick Start Guide. Onceyou’ve configured the controller to work with your laser and verified the function,
you can power the scan head on.
Perform Alignment of the Laser to the Scan Head To reduce the risk of injury,
please observe the laser safety guidelines in this section.

DANGER
Laser radiation
can cause severe retinal and corneal burns, burns on the skin, and may pose afire risk.
• Never stare into the laser’s beam, place any parts of your body in the beampath, or expose yourself to reflections of beams.

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3.3 Installation Instructions

WARNING
Laser radiation
can cause severe retinal and corneal burns, burns on the skin, and may pose afire risk.
• Cambridge Technology recommends that you fully enclose and interlock
the zone of hazard to prevent possible beam deflections while the laser isenergized. See Figure 4 for reference.

CAUTION
Laser radiation
can cause severe retinal and corneal burns, burns on the skin, and may pose afire risk.
• Cambridge Technology recommends that you use a Class 1 HeNe Laser foralignment.
If this is not possible, use the available laser's lowest power setting.

CAUTION
Laser radiation
can cause severe retinal and corneal burns, burns on the skin, and may pose afire risk.
Using optical instruments with this product increases eye hazard.
• Use optical instruments with caution.

Additional safety requirements may be applicable during initial alignment of the
optical system. Final recommendations and analysis of the system should be
performed by your Laser Safety Officer (LSO), Radiation Safety Officer (RSO), or
safety department of your business or institution.
Follow the laser manufacturer’s instructions to perform the rough alignment of thelaser to the scan head.

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3.3.6

3.3 Installation Instructions

INSTALL THE F-THETA LENS AND REQUIRED LENS SPACER

Positioning of the F-Theta lens relative to the scan head is critical for bothscanning performance and safety of the scanning mirrors.
Contact Cambridge Technology for F-Theta lens and lens spacer
recommendations that will eliminate damaging major or minor back reflections
from the optics onto the surface of the mirrors.
While Cambridge Technology can create custom spacers for non-standard lenses,
you may also create a lens spacer. Contact Cambridge Technology for thisproduct’s model-specific drawing or the 3D Customer CAD model drawing tocreate a lens spacer.
When installing the F-Theta lens and spacer, ensure that your laser is powered
down. Thread the spacer fully into the scan head, and then thread the F-Theta lensfully into the spacer. Failing to do so can lead to back reflections that could
damage the mirrors in the scan head.

3.3.7

PERFORM SCAN HEAD CALIBRATIONDANGER
Laser radiation
can cause severe retinal and corneal burns, burns on the skin, and may pose afire risk.
• Never stare into the laser’s beam, place any parts of your body in the beampath, or expose yourself to reflections of beams.

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3.3 Installation Instructions

WARNING
Laser radiation
can cause severe retinal and corneal burns, burns on the skin, and may pose afire risk.
• Cambridge Technology recommends that you fully enclose and interlock
the zone of hazard to prevent possible beam deflections while the laser isenergized. See Figure 4 for reference.

CAUTION
Laser radiation
can cause severe retinal and corneal burns, burns on the skin, and may pose afire risk.
• Cambridge Technology recommends that you use a Class 1 HeNe Laser foralignment.
If this is not possible, use the available laser's lowest power setting.

CAUTION
Laser radiation
can cause severe retinal and corneal burns, burns on the skin, and may pose afire risk.
Using optical instruments with this product increases eye hazard.
• Use optical instruments with caution.

Each controller manufacturer has a specific process for creating a calibration tableto remove any distortions caused by the lens and position of the scan headrelative to the work area. The controller uses information in the correction table topre-process the command data to remove these distortions.
Contact Cambridge Technology for correction tables that provide common scanhead and lens configurations and are compatible with many commercial

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3.4 Set up for Initial Use

controllers. We can also create correction tables for custom configurations onrequest.
In the case of the ScanMaster Controller, you would use Cambridge Technology's
CalWizard software and follow the procedure outlined in the CalWizard manualand the Calibration Applications note.
After calibration has been completed, installation of the scan head is complete.

3.4

SET UP FOR INITIAL USE

Delay parameter settings are variable because each application’s requirements
and the controllers that are used fluctuate. Use the delay settings outlinedin Table 3 as a starting point, then fine tune the settings as needed.
For additional information on delay settings, see Cambridge Technology’s
CalWizard manual P0900-0157, Appendix A.
Table 3: Recommended Delay Settings for Initial Use
MOVIA 10mm Scan HeadMark Delay

130 µsJump Delay

260 µsPoly Delay

65 µs

Laser On

Laser-dependent

Laser Off

Laser-dependent

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4

TROUBLESHOOTING AND
MAINTENANCE

4.1

TROUBLESHOOTING

Table 4 outlines common issues that users experience while using a scan head.
Complete the recommended actions to fix the issues.
If you need additional assistance, contact your local Cambridge Technology
support representative; contact information is listed the Customer Support section
on page 3.
Table 4: Scan Head Symptoms, Causes, and Recommended Actions
Symptom

Possible Cause

Recommended Action

Head does not create
any marks.

Lens is out of focus.

Verify that lens is set to theproper working distance.

Laser isdisconnected.

Verify that all cables and wires areconnected.

Beam path isblocked.

Verify that the beam path is clear.

Head only marks aspot in the center ofthe field.

No command datais going to the head.

•

Verify that all cables andwires are connected.

•

Check continuity and verify
pinout of power/data cable.

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4 Troubleshooting and MaintenanceSymptom

Possible Cause

Head only marks aspot in a random
location of the field.

No power is goingto the head.

Low laser power.

4.1 Troubleshooting
Recommended Action•

Verify that all cables andwires are connected.

•

Check voltage of cableproviding power to the scan
head.

•

Check continuity and verify
pinout of power/data cable.

Optics are dirty or
damaged.

Inspect all optical surfaces for dirt
or damage.

Controller
parameters havechanged.

Verify the laser parameters in thesoftware; correct parameters asneeded.

Laser is aging.

Confirm that laser output
corresponds with expectations
according to the age of laser.

Optics haveincorrect coating.

Verify transmission of optics witha laser power meter.

IMPORTANT
Operating temperature out of specification
reduces MOVIA’s optimum performance.
• Keep the scan head enclosure at 50 °C or below.

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4 Troubleshooting and Maintenance

4.2

4.2 Optic Care

OPTIC CARE

IMPORTANT
Improper handling
may damage scan head mirrors or lenses.
• Do not clean scan head mirrors or lenses unless you have the required
training to safely clean the equipment.
Mirrors or lenses that are damaged while cleaning will not be covered
under warranty.

It is recommended that you return the unit to Cambridge Technology for cleaning.

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5

WARRANTY STATEMENTThe Customer shall examine each shipment within 10 days of receipt and inform
Cambridge Technology of any shortage or damage. If no discrepancies arereported, Cambridge Technology shall assume the shipment was delivered
complete and defect free.
Cambridge Technology warrantees products against defects up to two years frommanufacture date, barring unauthorized modifications or misuse. Repaired
product is warranted 90 days after the repair is made, or two years after
manufacture date – whichever is longer. Please contact Customer Service toobtain a Return Materials Authorization (RMA) number before returning any
product for repair. All orders are subject to the Cambridge Technology Terms andConditions and Limited Warranty.
Please visit our website www.novantaphotonics.com for the latest version of these
documents and other useful information.

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Engineered by Cambridge Technology, Novanta product brand
Novanta Head Quarters
125 Middlesex Turnpike
Bedford, MA 01730, USA
Phone: +1-781-266-5800
Email: photonics@novanta.com
Website: www.novantaphotonics.com
MOVIA, 2-Axis Scan Head – User Manual
1040–0004 Rev. 03© 2021, Novanta Corporation. All rights reserved.