USER MANUAL
Contents
1. Once the unit has been mounted in its desired position the focus working distance of the VLX1 can be adjusted by A moving the position of the lens The lens is clamped using two grub screws one at each end of the lens accessed via holes in the covers To adjust the working distance loosen the two grub screws using a 1 5 mm Allen key and slide the lens in and out to achieve the required focus The line width can also be changed by the same means Once the desired setting has been achieved clamp the lens by lightly tightening the grub screws again Ensure that the lens has been positioned evenly to ensure a consistent line width and intensity DO NOT OVER TIGHTEN THE SCREWS OR THE LENS WILL BECOME DAMAGED 4 4 Setting the Line Intensity The intensity of the light source can be set by means of the built in serial communications port It is generally set to 1 prior to shipping but can be set any value from 1 to 140 See Configuration Section 6 for the commands for setting the intensity The units are generally shipped preset to 1 intensity The intensity of the light source can be set by means of a serial communications port and can be set to any value from 1 to 100 4 5 Cooling Considerations The maximum intensity level that will be achievable will be determined by the cooling conditions GARDASOFT The VLX1 light source generates heat as do all high power LED light sources and relies on radiation2. Red amp Red Orange Any serial communications software e g HyperTerminal supplied with MS Windows can be used to setthe light level The settings and commands available are as follows The standard commands are given below Commands are not case sensitive The Enter key or Linefeed lt LF gt character must be sent after each command The VLX1 will reply with an echo of the command given OK if a Blank command is sent or an error message GARDASOFT 6 3 1 General Command Functions Command Syntax Response Format On Screen Help Lists Multi Line Help Text available commands R lt CR gt lt LF gt Read current intensity level Rxxx lt CR gt lt LF gt where xxx percentage is current output intensity Wxxx lt CR gt lt LF gt Set the intensity level Wxxx lt CR gt lt LF gt where percentage Where Xxx is new output intensity xxx intensity from 0 to 140 S lt CR gt lt LF gt Store the current intensity as Sxxx lt CR gt lt LF gt where xxx the power up default is current output intensity T lt CR gt lt LF gt Read the VLX1 temperature Txx lt CR gt lt LF gt where xx is the temperature in DegC E lt CR gt lt LF gt Read any error messages E string lt CR gt lt LF gt where Returns Text String string VLX1 OK VLX1 Over Temperature Z lt CR gt lt LF gt Returns the Unit Status Zxx lt CR gt lt LF gt where xx is the status code 0 OK Refer to Gardasoft for oth
3. for particular LED types for specific output intensity settings NOTE This changing voltage is not the method used for regulating the intensity the light sources all have current control circuitry as required by LED devices However if the supply voltage is significantly higher that is necessary then the additional spare voltage has to lost in the current control electronics which is both wasteful and generates additional heat which must then be removed The table below shows supply guidelines but please refer to the label on the unit before use as LED technology is continually developing and these specifications could change 5 1 1 General Power Supply Guidelines DC Supply Voltage Current Example Maximum Output Current for 125mm 500mm Long lt 50 50 gt 100 Unit Colour 100 Wavelength versus intensity setting White Blue Green 1A 100mm plus LEDs Red 625nm 0 5A UV 400nm Red Deep 660nm 1A 100mm plus IR Cherry Red 0 5A 740nm This is independent of the supply voltage GARDASOFT If it is not intended to run the unit at full power then as described above there are benefits associated with running the supply at a lower voltage For this reason it is recommended that the power supply used with the unit is both capable of supplying the maximum voltage current requirements of the unit but also the output voltage can also be adjusted down if necessary Additionally the VLX1 units requir
4. from its heat sink fins to cool the unit The efficiency of this cooling will depend on a number of factors As with all LED based light sources the higher the operating temperature of the LEDs the more quickly the intensity will reduce over time For this reason the installation should aim to keep the light source as cool as possible The VLX1 unit has on board temperature measurement and will shut itself down if the temperature of the LEDs exceeds a preset threshold Additionally the temperature limit is factory set to ensure that there is no danger of personnel being burned by touching the heat sink This temperature setting can be modified by Gardasoft Vision under certain circumstances The following factors will all influence the efficiency of the cooling and therefore in combination will ultimately determine the maximum intensity at which the unit can be used without it shutting down 4 5 1 Mounting Orientation If no forced air movement is provided the best orientation for cooling is either with the light output directly down or up or the VLX1 unit mounted with the line vertical This allows the greatest convection airflow over the heat sinks 4 5 2 Ambient Temperature The temperature of the air around the VLX1 unit is a major factor that will influence the efficiency of the cooling The warmer the ambient air the less efficient the cooling will be 4 5 3 Local Ventilation If the VLX1 unit is mounted in an enclosed housing
5. GARDASOFT USER MANUAL VLX1 LED Line Lighting Revision 4 Gardasoft Vision Ltd Castle Acres Elsworth Cambridge CB23 4JQ UK Tel 44 1954 200343 Fax 44 1954 204343 Web www gardasoft com GARDASOFT 1 Disclaimer Except as prohibited by law All hardware software and documentation are provided on an as is basis It is essential that the user ensures that the operation of the product is suitable for their application The user must ensure that incorrect functioning of this equipment cannot cause any dangerous situation or significant financial loss to occur Gardasoft Vision Ltd and Gardasoft Products Ltd will not accept any liability for consequential loss of any kind All trademarks acknowledged Hardware software and documentation are Copyright 2002 2010 Gardasoft Products Ltd Hardware manufactured by Gardasoft Vision Ltd under licence 2 Getting Started Read Section 3 on Safety Ensure that the light can be used in a safe way Mount the light Section 4 Connect the light up Section 5 Set up the VLX1 for the desired operation See Configuration Section 6 Visit www gardasoft com for application notes on this product There is also a Support page which has information on troubleshooting problems GARDASOFT 3 Safety Read this before using the VLX1 Always observe the following safety precautions If in doubt contact your distributor or Gardasoft Vision Refer to the labe
6. convection air flow will be very limited and heat will only be transferred from the unit by conduction from the housing around the unit This will cause the unit to trip on over temperature limit and start flashing at much lower brightness levels 4 5 4 Assisted Air Movement The cooling efficiency can be further improved by creating air movement around the heat sinks This can be achieved by use of fans blowing air onto the heat sink and will result in the ability to run at higher intensities providing the local air is cool enough 4 5 5 VLX1 Forced Air Variant There is the option for the fitting of forced air cooling hardware to the VLX1 for certain lengths This improves the airflow through the unit allowing higher output intensities to be achieved Contact your distributor or Gardasoft Vision for more details 4 6 Fault Detection The VLX1 unit monitors the system temperature to detect if the unit is overheating As mentioned above the running temperature of the unit is influenced by a number of conditions GARDASOFT In the event of an over temperature fault being detected the unit will go into Alarm Mode and the light output will be automatically shut down to indicate the fault condition The light source will remain in Alarm Mode until either the power to the unit is cycled or the Reset 0 command is sent via the RS232 Port see Section 8 on Configuration The cause of the alarm can be determined by either usin
7. e high currents so care must be taken to ensure that an appropriate power supply is selected For further information please contact your distributor or Gardasoft Vision 5 2 Power Supply of overheating in the unlikely event of a fault in the VLX1 The power dissipation in To avoid a fire hazard from the VLX1 or the power supply consider the implications A the VLX1 in a fault condition can be up to lt Power supply voltage gt lt max current delivered by power supply gt The chassis of the VLX1 unit is at Power Supply Ground potential The use of a regulated power supply with 100 short circuit protection is recommended If however a non regulated power supply is used then the maximum ripple voltage of this power supply must not exceed 10 of the actual DC value The VLX1 is intended for industrial applications in a closed or protected environment DC power supply cable length is recommended not to exceed 3m If longer DC cables are fitted or if surge or transient interference greater than 60V may occur on the DC power supply lines additional surge protection should be provided Route low voltage and mains wiring separately If they must be loomed together ensure that low voltage insulation rating is sufficient or that supplementary insulation is used Standard units are shipped with a wired in power input cable Power 24VDC nom See text GARDASOFT 5 3 10 Connector Communications with the unit is made via a flyi
8. ely 240W per metre of length at full intensity 4 1 Dimensions Short Working Distance SWD Line Length 20mm i e 300mm Line 320mm E PS E N 211 lt o o 2 o a 4 p Bi l 20 5 41 Long Working Distance LWD c 4 E Lens Focus Adjustment D Grub Screws 1 5mm Allen Key a ke y E KE o 1 i o ra y o 1 1 2 RP a 9 3 2 g 2 a A D S lt o 1 19 3 1 41 GARDASOFT 4 2 Mounting The unit has two M5 mounting holes on each end as shown in the Dimensions diagram Please Note There is a difference between the positions of the holes on the SWD short working distance and LWD long working difference variants The maximum useable intensity will depend on the mounting orientation ambient temperature and degree of air circulation around the units The unit can be mounted in any orientation but for the convection cooled model optimal cooling will be achieved with the lens facing up or down See below for cooling considerations 4 3 Focusing the Beam Long Working Distance LWD Model Only LWD units are generally shipped with the lens fully retracted into the body of the light source In order to operate correctly the lens needs to be moved to the correct position to produce a focused line ens Focus Adjustment
9. engths from 100mm to 2 metres Range of wavelengths available including UV and IR 50 000 hours service life VTR1 amp VTR2 LED Strobe lights for traffic monitoring ANPR LPR High intensity LED strobe lights for automatic license plate recognition applications Available in 740nm 850nm and 940nm IR and white light High speed strobing up to 65Hz VTR2 Strobing can be asynchronous or free running Compact IP66 rated enclosures for outdoor use Excellent thermal management of LEDs ensuring long life service Full intensity control for dynamic brightness adjustment
10. er codes X0 lt CR gt lt LF gt Turn light output off X0 lt CR gt lt LF gt X1 lt CR gt lt LF gt Turn light output on Default X1 lt CR gt lt LF gt is on Q lt CR gt lt LF gt Reset firmware and restart the Q1 lt CR gt lt LF gt light GARDASOFT Commands Intensity Profile Setting See below for more information Command Syntax Response Format On Screen Engineering Help Multi Line Help Text Lists available engineering commands Oa n lt CR gt lt LF gt Write Segment Offset Oa n lt CR gt lt LF gt a segment address n Offset Value 0 255 Offsets are added to overall set point Pa lt CR gt lt LF gt Pa Read Segment Offset A Pa n lt CR gt lt LF gt segment address n Offset Setting lt CR gt lt LF gt Store Offsets 1 lt CR gt lt LF gt lt CR gt lt LF gt Returns information including See below values of Offsets Segment Addresses start from 0 at the coolant connections i e 300mm long has 9 segments numbered from 0 to 8 from the end furthest away from the cable entries Command Typical Response below Values after Offsets give the offset value of each segment starting with Segment 0 3 LED Modules 3 Therm Modules Offsets 0 00000000 000000000 ete 6 4 Intensity Profile Setting The intensity profile can be changed by applying offsets to the intensity level at different points along the length of the line A typical application of this w
11. et Once all the segment offsets have been set and the desired profile has been created use the command to store these If the dollar command has not been used the offset values can be set back to 0 by cycling the power to the unit ee 99 To view the current offset values use the command as described above Light Source Model Numbers yyy length in 125mm increments Line Colour x Illuminated Line Length Uniform Intensity Length gt 95 Supply Voltage Current Consumption Working Distance depends on model number Colour Temperature White Only Intensity Control Method Dimensions GARDASOFT A Specification VLX1 yyy SWD x 37mm working distance VLX1 yyy LWD x 110mm working distance W white G green B blue R red IR740 infrared UV400 ultraviolet 100mm upwards in 100mm increments Along illuminated length 30mm 24V nominal 16 24VDC typ 15 28V absolute max range See section 5 IA 100mm plus wavelength colour 0 5A depending on LED 37mm or 110mm for focused line See model number 5500 K RS232 see text for commands Ethernet module optional See Light Source Dimensional Data section GARDASOFT Gardasoft LED Lighting Controllers The products available at the time of writing include the following Other products are also available See www gardasoft com for details of the current range RT Range 2 4 or 8 output chan
12. g the E command which will return a string describing the fault e g VLX1 Over Temperature or the Z which returns a single character numeric code for use with bespoke software representing the unit status Tf the option is fitted the Healthy output will switch state if the unit goes into Alarm Mode 4 6 1 Over temperature If an over temperature Alarm occurs ensure that the cooling arrangement is checked before resetting the unit immediately once the power has been cycled and take appropriate action if necessary The Shut Down temperature is factory preset for operating in a normal ambient environment lt 30 C However it can be changed using RS232 commands Please consult your distributor or Gardasoft Vision if it is believed that this could be necessary GARDASOFT 5 Connections See the Specification Appendix A for information on connection ratings 5 1 Power Supply Voltage and Current Requirements Refer to the label on the light and any supporting documentation sent with the light Although the VLX1 is quoted as nominally as being a 24DC device due to the wide range of LED types now available there are some differences in the best supply voltage required depending on the wavelength The intensity also has an affect on the voltage required by the LEDs In order to minimize the wasted energy some additional data sheets have been issued giving guidelines about what supply voltage is optimal
13. l on the light and any supporting documentation supplied with the light A A 3 2 A Where this symbol appears in the manual refer to the text for precautions to be taken 3 1 Eye Safety It is recommended that if the light source is installed such that there is the possibility of the personnel being directly exposed to the light output for example during maintenance an interlock is fitted to shut the light off in this instance Heat The VLX1 can dissipate up to 240W per metre convection cooled model during operation In the event of a malfunction it could get hot and should therefore be positioned where personnel cannot accidentally touch it and away from flammable materials Read the Mounting Section 4 Do not exceed the power ratings given in the manual Note that at the maximum ratings the case temperature can reach gt 65 C 3 3 A 3 4 Electrical The VLX1 does not have complete tracking isolation of inputs and outputs The chassis of the VLX1 unit is at Power Supply Ground potential General The VLX1 must not be used in an application where its failure could cause a danger to personal health or damage to other equipment If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired GARDASOFT 4 Installation Read Section 3 on Safety before installing the light The light source generates a significant amount of heat approximat
14. nels up to 20A each 2 4 or 8 trigger inputs Front panel RS232 or Ethernet configuration Fast pulsing option RT200 20 Lighting controller 2 channels up to 20A pulsing front panel RT220 20 Lighting controller 2 channels up to 20A pulsing Ethernet RT260 20 Lighting controller 2 channels up to 20A pulsing RS232 RT420 20 Lighting controller 4 channels up to 20A pulsing Ethernet RT820F 20 Lighting controller 8 channels up to 20A fast pulsing Ethernet RT860F 20 Lighting controller 8 channels up to 20A fast pulsing RS232 PP704 DIN Rail mounting clip for RT range Machine Vision Timing Controller CC320 Controller 8 digital inputs 8 digital outputs 1 or 2 wire Encoder input Very flexible operation Ethernet control Front panel configuration PP703 DIN Rail mounting clip for CC320 GARDASOFT Gardasoft LED Lighting The products available at the time of writing include the following Other products are also available See www gardasoft com for details of the current range VLX1 LED Line light range High intensity LED line lights for line scan applications Brightness up to 1 6 MLux Line lengths from 125mm to 2 metres Range of wavelengths available Forced air cooling options for increased performance 50 000 hours service life VLX1 LED Line light range Very high intensity LED line lights for line scan applications Water cooled for high efficiency cooling and long LED lifetime Brightness up to 2 3 MLux Line l
15. ng lead with a 10 way Buccaneer style multi pole connector The IO connector mating part is Bulgin Buccaneer PX0410 10P TX output from light 3 RS232 GND Reserved Do Not Connec Reserved Do Not Connec Reserved Do Not Connec Reserved Do Not Connec Reserved Do Not Connec Reserved Do Not Connec Reserved Do Not Connec The unit is supplied as standard with a cable to a standard RS232 serial port 9 Pin D Type line socket GARDASOFT 6 Configuration The VLX1 is configured using the RS232 interface 6 1 RS232 Communication When using RS232 the COM port should be set to 57600 Baud 8 data bits 1 stop bit no parity and no handshaking The RS232 connector is a standard 9 way female D type A standard straight through cable can be used to connect the controller to a PC serial port 6 2 HyperTerminal If using HyperTerminal to communicate with the VLX1 ensure that the following are both selected Send line ends with line feeds Echo typed characters locally This is set on the Properties dialog Settings tab and ASCII Setup dialog Also ensure that handshaking is turned off To test the RS232 link press Enter and check that an OK message is returned by the VLX1 6 3 Command Structure The intensity of the light source can be set and stored by means of a serial communications port It is generally set to 1 prior to shipping but can be set any value from 1 to 140 110 for
16. ould be to compensate for the loss of light at the edges of the field of view due to camera optics geometry GARDASOFT Offsets can only be positive i e they can only increase the intensity level above the base value For this reason the point in the intensity profile which requires the lowest intensity should have an offset of O with increasing offsets in other places The line is divided into segments of 33mm i e there are three segments per 100mm of length the incremental length of the VLX1 range Segment Addresses start from 0 at the coolant connections i e 300mm long has 9 segments numbered from 0 to 8 from the end furthest away from the cable entries The commands used for setting the offsets are shown in the table below The offset value can be from 0 255 For the VLX1 range each offset unit is equivalent to around 0 3 of the maximum intensity NOTE Offsets are absolute and not applied in proportion to the running intensity 6 4 1 Example To create a smile type intensity profile i e higher intensity on each end on the line on a 300mm long line the following values might be used for the 9 segments available 30 25 20 10 0 10 20 25 30 These would be set to each segment in turn using the commands in the table above e g 00 30 lt CR gt lt LF gt sets segment 0 to 30 offset 01 25 lt CR gt lt LF gt sets segment 1 to 25 offset 08 30 lt CR gt lt LF gt sets segment 8 to 30 offs
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