LC200 LED Lighting Controller User Manual 1
Contents
1. Gardasoft Vision Ltd Units 1 and 2 Castle Acres Elsworth Cambridge CB23 4JQ UK GARDASOFT Tel 44 1954 200343 Fax 44 1954 204343 Web www gardasoft com LC200 LED Lighting Controller 3 Getting Started User Manual Read the section on Safety In pulsed mode the brightness can be set up to 500 of its rating but only for short periods and at low duty cycles so that the lighting does not overheat and get damaged This is Revision 03 Check Lighting Types to ensure that you have the correct model of LC200 for your light Connect your light as described in Connections Connect a also limited by the maximum allowable pulse current of 2A e g if a lamp takes 1A continuously then the maximum output brightness would be 200 regardless of pulse width and duty cycle 24V DC power supply and switch it on When the LC200 powers up it should automatically sense the lighting unit The light will flash for a while and then go to 50 intensity Output Allowed Pulse Width Allowed Duty Cycle a DIN rail Read the Operation section and use the buttons to vary the brightness of your lighting unit Mount the LC200 as described in Mechanical Fixing using 1 Disclaimer Except as prohibited by law All hardware software and documentation is provided on an as is basis m It is essential that the user ensures that the operation of the product is suitable for their application 7 T2. ase the memory can be cleared by powering up the LC200 while holding down the SELECT and DOWN buttons The LC200 will display CL for about 5 seconds while the memory is cleared 8 3 Current Sensing When no light is connected the LC200 displays nc and continually checks for a light being connected When it detects a light it will display SN For the LC200 350 and LC200 700 the controller knows what the current rating of the light is so no further sensing is required For the LC200 12V and LC200 24V the controller will automatically sense the current rating of the light by increasing the output current until the voltage rating is reached Once the LC200 has detected the light and is ready to operate two alternating bars are shown on the display By default the output is set to continuous at 50 of full brightness Power Up sa age Light A Pm oe Wiis Wy sn AE n 8 4 Connected State Once the LC200 has detected that a light is connected and the current rating has been determined the user can then set up the LC200 for Continuous or Pulsed output Wait One Press p l Second SEL Wait One Press c Second 0 SEL Delay in mS Wait One dL Second Wait One PL Second a WN Wi Stal ZZ AAN FEIN 8 4 1 Continuous Output ea Wd Wi mi nm Press Hold SEL for 1 Second cL Pulse in mS ig To set up continuous mode Press and hold the SEL button for one second Select SC using the up a
3. e applied between the ve and ve of the trigger input Ambient Temperature 5 c to 40 c During Operation Maximum 90 rH non Relative condensing Humidity During Operation Output Current Input Logic Low Maximum Unit Power Dissipation 6 Mechanical Fixing The LC200 can be fixed onto a standard 35mm DIN rail The LC200 does not have an IP rating and should be mounted so that moisture and dirt cannot enter the unit An enclosure may also be required for other parts of the system such as power supplies and will provide mechanical and environmental protection in industrial applications 7 Connections 7 1 General All connections are made via screw terminations on the side of the unit Ensure that the wire gauge used for these connections is appropriate for the current to be drawn Ideally wires should be secured to ensure they cannot come loose 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 Gardasoft Vision Ltd Units 1 and 2 Castle Acres Elsworth Cambridge CB23 4JQ UK GARDASOFT 7 1 1 Power Connections The LC200 should be powered from a single 24V DC supply The power is connected on the V and GD ground screw terminals 7 1 2 Signal Connections See the Specifications Section for the electrical limits on these connections Check all connections carefull
4. ers have rated their lighting by voltage without giving a specification for the current required The 12V and 24V types above are designed to support these legacy lights When a 12V or 24V light is connected the LC200 automatically senses the current rating of the lighting It then drives the lighting using a constant current allowing all the advantages of current drive for voltage rated lighting 4 3 Output Two modes of operation are provided Continuous In continuous mode the output is a continuous current Pulsed In this mode output is pulsed once per trigger A digital input is used as a trigger The delay and pulse duration can range from 100 microseconds to 1 milliseconds in 100 microsecond steps and from 1 millisecond to 99 milliseconds in 1 millisecond steps In continuous mode the output current can be varied from 0 to 100 of full brightness So for example if the brightness is set to 350 then the LC200 will not allow pulses greater than I millisecond long If the trigger pulses are too close together so that the lights are on for more than 10 of the time the LC200 will stop the output and flag an error 5 Specifications 24V DC 5 This figure excludes the current needed to drive the output The current Supply Current requirements may be up to 2A at maximum output Maximum Load This can be higher than Up to 1 2A continuous or 2A pulsed Input Logic High 5V to 24V This is the voltag
5. etting up lighting the user can press the DOWN button on the LC200 to simulate a trigger and generate an output pulse When a trigger is received the display shows PL briefly to show that the light is being pulsed 9 Error Codes The following error messages are displayed on the LC200 display While sensing the current rating the output became open circuit While sensing the current rating the required voltage could not be reached While sensing the current rating the output current was incorrect Over driving protection in pulse mode The pulse trigger rate is too high Thermal cutout Internal temperature is too high Output connection is short circuit BE Output connection is open circuit O PP Internal power protection cut out Gardasoft LED Lighting Controllers The following products are available at the time of writing New products will be introduced See www gardasoft com for details of the current range LC200 Range 1 output channel up to 2A e Models for voltage and current rated lights 1 digital input SafeSense Technology PP600 Range e 2 output channels up to 10A each e 2 digital inputs PP600 Lighting controller PP610 Lighting controller with RS232 PP701 DIN Rail mounting clip for PP600 and PP600F range PP600F Range Same as the PP600 range but with fast pulsing e Pulse delay from 10us to 9 9ms in lus steps e Pulse width from lus to 9 9ms in lus steps PP600F Light
6. he user must ensure that incorrect functioning of this equipment cannot cause any dangerous situation or significant financial loss to occur 7 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 2005 Gardasoft Products Ltd Hardware manufactured by Gardasoft Vision Ltd under licence 2 Safety English 2 1 1 LC200 Safety Please read this before using the LC200 If in doubt contact your distributor or Gardasoft Vision Where this symbol appears in the manual refer to the text for precautions to be taken 2 1 2 Electrical The user must ensure that the potential difference between any combination of applied signals does not exceed the supply voltage WARNING Higher voltages may cause a danger to personal health The LC200 does not have complete tracking isolation of inputs and outputs Transients caused by inductive loads must be suppressed external to the LC200 2 163 General The LC200 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 Set up the LC200 for the continuous or pulsed operation and test as described in the Operation section If an error occur
7. ing controller PP610F Lighting controller with RS232 PP860 PP861 e High current high accuracy controller e 8 output channels up to 20A each e Pulses accurate to 0 1 microseconds J RS232 configuration
8. nd down buttons Press SEL Set the brightness from 0 to 99 percent Press SEL As the brightness setting is changed the brightness of the light will also change 8 4 2 Pulsed Output When pulsing the lighting three parameters are available Brightness Delay from trigger to pulse Length of pulse The brightness can be adjusted from 0 1 10 to 5 0 500 of the continuous brightness There are limitations between the set brightness level and the maximum allowed pulse length duty cycle refer to the General Description for details To set up pulse mode Press and hold the SEL button for one second Select SP using the up and down buttons Press SEL Set the brightness from 0 0 to 5 0 Press SEL Set the pulse delay from 0 1 to 99 milliseconds Press SEL Set the pulse width from 0 1 to 99 milliseconds Press SEL When the user is setting up the pulse delay and pulse width the display will show 0 1 to 0 9 for periods less than 1 Tel 44 1954 200343 Fax 44 1954 204343 Web www gardasoft com millisecond and the time is adjustable in 0 1 millisecond steps From millisecond upwards the display will show 1 to 99 and the time will be adjustable in 1 millisecond steps Note if at any time a mistake is made it will be necessary to go through the menu again Triggers occur on the leading edge of the trigger input that is on the transition from OV to for example 5V input When s
9. s at any time refer to the Error Code section Visit www gardasoft com for Application Notes on the LC200 4 General Description The LC200 current controller provides repeatable control of LED lighting for machine vision applications including power supply intensity control timing and triggering functions The LC200 is set up using three push buttons and a two digit seven segment display Configurations are saved in non volatile memory so that the LC200 will resume operation after a power cycle 4 1 Safe Sense Technology The LC200 provides automatic fool proof operation for voltage rated lighting Select the LC200 12V or LC200 24V as appropriate for your light The LC200 will detect the connection and disconnection of the light and on connection will automatically sense the current rating of the light 4 2 Lighting Types The LC200 comes in four versions LC200 12V For 12V lighting LC200 24V For 24V lighting LC200 350 For 350mA lighting LC200 700 For 700mA lighting LEDs should be driven using a constant current source not a constant voltage This is because small variations in temperature or voltage can cause a large change in brightness in LEDs The brightness is approximately linear with current so by driving the lighting with a current intensity control is linear Intensity control with voltage is very difficult because of the extreme non linearity of brightness with voltage Traditionally many manufactur
10. y before switching on Ensure that the polarity of V and GD is correct The digital trigger input is marked T and T and should be connected to a suitable 5 to 24V trigger source or left unconnected when not used Connect the LED lighting to L and L As DC ee POWER SUPPLY O O Gardasoft Vision C200 24 Sep L www gardasoft com YH G Vi 1954 200343 L UL MANUAL 9 T T _ V 22 26V 2 5A I TRIGGER SOURCE 8 Operation The LC200 is set up using the push buttons and display on the front of the unit The set up is non volatile so the LC200 will resume the same operation after a power cycle if a light is connected The overall operation is given below Power Up Product Ref Firmware Ver WAZ AMH Light Connected nec Light Sensing AAN AAN li M Connected Lighting _ State Error HW HW Configuration 8 1 Power Up On power up the LC200 will display 8 8 to test the display is working then LC 20 followed by the version number eg 01 and then will be ready for operation To show that the unit is operating normally an alternating pattern is drawn on the display The unit will initially show nc on the display until a light is connected 8 2 Cold Start In the unlikely event that the non volatile memory becomes corrupt the LC200 may not start up properly In this c
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