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JAI CV-A1 manual

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Table of contents for the manual

  • Page 1

    Compact Monochrome Megapixel Progressive Scan Camera CV -A1 Operation Manual Camera: Revision B Manual: V ersion 1.2 A1manB12oct08.doc JPT 08 -10-03[...]

  • Page 2

    CV-A1 Table of Contents 1. General......................................................................................................... 2 2. Standard Compositi on ....................................................................................... 2 3. Main Features ............................................................................[...]

  • Page 3

    CV-A1 1. Gener al The CV-A1 is a monochrome progressive scan 1/ 2” CCD c amera with 1.4 Megapixel resolution . It is designed for automated inspection, featuring a small hou sing and a wide range of unique functions. The asynchronous trigger can be set to work in several mode s, to allow such functions as pulse width controlled shutter, p rogramm[...]

  • Page 4

    CV-A1 4. Locations and F unctions Fig. 1. Locations. 1. 12 pin Hirose connector for frame grabber interfacing and power (12V DC). 2. BNC connector for video output. VS 1.0 Vpp 75 Ohm. 3. 6 pin Hirose connector for trigger input and RS-232C control interface. 4. Gain potentiometer for manual gain setting. 5. Mounting holes, 8 x M3. For prec ision mo[...]

  • Page 5

    CV-A1 5. Pin Assignment 5.1. 12-pin Multi-connector (DC- IN/VIDEO OUT, EXT.HD/VD IN) Type: HR10A-10R-12PB-01 (Hirose) male Seen from re ar P in configuration is compat ible with EIAJ standard Fig. 2. 12-pin connector. Plugs for cable: HR10A-10P-12S 5.2. 6-pin Multi-connector (TRIGGER) Type: HR10A-7R-6PB (Hirose) male Pin no. Signal Remarks 1 GND 2 [...]

  • Page 6

    CV-A1 5.3. Input and Output Circuits In the following schematic diagrams the input and outpu t circuits for video and timing sig nals are shown. For alternat ive connections refer to “7.4. Intern al Switch and Jumper Se ttings.” Jumper settings are shown as for factory defaul t. 5.3.1. Video output 300 mV 500 mV GND #4/1 2 75 Video Out pu t NC [...]

  • Page 7

    CV-A1 5.4. CV-A1 Block Diagram Fig. 8. Block diagram. 6. F unctions and Oper ations 6.1. Basic functions Some of the primary camera functions need a general introduction before the ope ration modes are described. The list below sh ows the primary functions fr om the command list. SM Shutter Mode Normal shutter, Progra mmable Exposure SH Shutter Spe[...]

  • Page 8

    CV-A1 Binning mode BI is a fun ction where the signal charge from 2 or m ore adjacent pixels are adde d together and read out as one pixel. A resulting full frame with lower resolution can be read out with a higher rate. By adding 2 pixels together, the sensitivity is doubled. The CV-A 1 has both vertical and horizontal binning. Wit h V binning the[...]

  • Page 9

    CV-A1 6.2. Input-output of HD/VD Signals In the default setting the camera will accept external HD/VD signals on pin 6 and 7 of the 12 pin Hirose connector. If external HD/VD is applied, th e camera will synchronize to it. If no external sync signals are applied, the camera will oper ate with its in ternal x-tal controlled sync. The camera scanning[...]

  • Page 10

    CV-A1 6.3. Continuous Operation (Non triggered) Trigger Mode Normal. TR=0. It is for applications where the camera is continuous ru nning without external trigger. In norm al mode the shutter mode can be n ormal or programmable exposure. (SM=0 SM=1). The shutter will work in all 16 steps up to 1/200,000 second or with the programmable exposure in 1[...]

  • Page 11

    CV-A1 6.4. External Trigger Modes This camera has 6 external asynchr onous trigger modes, wh ich can be set by RS-232C comman ds. 1. Edge Pre-select Mode.TR=1 Pre-selected exposure. (SM=0, SM=1) 2. Pulse Width Control Mode. TR=2 Pulse width controlled exposure. (HC=0, H C=1) 3. Frame Delay read out mode. TR=3 PWC exp osure read out by ext. VD. (HC=[...]

  • Page 12

    CV-A1 6.5. Edge Pre-select Mode The exposure starts at the first HD pulse after t he trigger leading edge. It stops and is read out after the duration of the shutter time selected. It can be t he first 9 step in normal or 10 23 steps in programmable shutter. SM=0 or SM=1. Shutter selections SH ≥ 10 will result in 1 /12,000 sec. This mode will ope[...]

  • Page 13

    CV-A1 6.6. Pulse Width Control Mode In this mode the exposure starts from the leading edge of the trigger pulse. It stops at the trailing edge of the trigger pulse, and the resul ting video is read out. The accumul ation can be either H synchronous or H asynchronous. HC=0 o r HC=1. In H synchronou s mode the accumulation starts at the first HD puls[...]

  • Page 14

    CV-A1 6.7. Frame-delay read out Mode In this mode the exposure starts from the leading edge of the trigger pulse. It stops at the trailing edge of the trigger pulse. The accu mulation can be either H sy nchronous or H asynchronous. HC=0 or H C=1. In H synchronous mode the accumulation starts at the first HD pulse after the leading edge of the t rig[...]

  • Page 15

    CV-A1 6.8. Long Time Exposure Mode The exposure time is the interval between 2 ex ternal VD pulses sent to the VD inp ut. The exposure starts after the input of a VD, and it ends after the next VD input, which again starts a new exposure. The interval between the external VD pulses (exposure time) can be from V to ∞ . Thermal and dark current noi[...]

  • Page 16

    CV-A1 6.9. Start/Stop Mode The exposure is controlled by the interval between the external trigge r pulse and an external VD pulse. The exposure start at the first HD pulse af ter the trigger leading edge, and it stops after the rising edge of the VD. An EEN pulse will in dicate the active accumu lation time, and a WEN pulse indicates that the resu[...]

  • Page 17

    CV-A1 6.10. Smearless Mode This mode will reduce the unwant ed smear signal from a highlighted scene when a short exposure time is used. The trigger mode is like edge pre-se lect, but a dummy readout is performed before the active accumulation is started. It will remove the smear abov e the highlighted parts in the image, but there is still smear l[...]

  • Page 18

    CV-A1 6.11. Other Functions. Gain and analogue settings. !! Do not adjust these s ettings unless you have knowl edge to video adju stments !! The video gain can be set to AGC or manual . In AGC mode the video level is kept constant by the automatic gain control circuit within a 1 2 dB range. Normal 700 mVpp ± 30 mV. The level can be adjusted with [...]

  • Page 19

    CV-A1 7.2. CV-A1 RS-232C command list. Command Name Format Parameter Remarks A – General settings and useful co mmands EB Echo Back EB= [ Param. ] <CR><LF> 0=Echo off 1=Echo on Off at po wer up ST Camera Status request ST?<CR><LF> Actual setting HP Online Help reques t HP?<CR><LF> Command li st VN Firm ware ver[...]

  • Page 20

    CV-A1 7.3. Camera Control Tool for CV-A1 From www.jai.com CV-A1 Camera Control Tool for Windows 98/NT/200 0 can be downloaded. The control tool contents a camera control program and too ls for making your own program. Below the different windows are sh own. Control Bar Windows for all functions Fig. 26. Windows from Camera Tools. For the integrator[...]

  • Page 21

    CV-A1 7.4. Internal Switch and Jumper Settings For VD and HD input/ou tput and termination refer to “6.2. I nput-output of HD/VD Signals.” For alternative connections of pin #10 and #11 on 12-pin connector, ju mper JP1, JP2, JP3, JP4 and JP5 can be used. Refer “5.3. Input and Output Circuits.” Jumper setting for alternative pin c onfigurati[...]

  • Page 22

    CV-A1 9. Specifications Specifications CV-A1 Scanning system Progressive 1068 lines 16.037 frames/sec. Pixel clock 28.63636 MHz Line frequency 17.127 kHz (1672 pixel clock/line) Frame rate for full frame 16.037 frames/sec. (1068 lines/frame) CCD sensor 1/2” progressive monochrome IT CCD. Sony ICX205AL-6 Sensing area for video out 6.42 (h) x 4.81 [...]

  • Page 23

    CV-A1 10. Appendix 10.1. Precautions Personnel not trained in dealing with similar elec tronic devices should not service this camera. The camera contains components sensitive to el ectrostatic discharge. The handling of these devices should follow the requirements of electrostatic se nsitive components. Do not attempt to disassemble this camera. D[...]

  • Page 24

    CV-A1 11. Users Record Camera type: CV-A1 Revision: (Revision B) Serial No. …………….. Users Mode Settings Users Modifications DECLARA TION OF CONFORMITY AS DEFINED BY THE COUNCIL DIRECTIVE 89/336/EE C EMC (ELECTROMAGNETIC COMPAB ILITY) WE HEREWITH DECLARE THAT THIS PRODUCT COMPLIES WITH THE FOLOWING PROV ISIONS APPLYING TO IT. EN-50081-1 EN[...]