JAI CV-A2 Operation Manual
  1. Manuals
  2. Brands
  3. JAI Manuals
  4. Security Camera
  5. CV-A2
  6. Operation manual

JAI CV-A2 Operation Manual

Compact monochrome 2 megapixel progressive scan camera
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Compact Monochrome 2 Megapixel
Progressive Scan Camera
CV-A2
Operation Manual
Camera: Revision A
Manual: Version 1.0
A2manDec20.doc
JPT 20-12-04

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the CV-A2 and is the answer not in the manual?

Questions and answers

Related Manuals for JAI CV-A2

Summary of Contents for JAI CV-A2

  • Page 1 Compact Monochrome 2 Megapixel Progressive Scan Camera CV-A2 Operation Manual Camera: Revision A Manual: Version 1.0 A2manDec20.doc JPT 20-12-04...

  • Page 2: Table Of Contents

    6.15. Save and Load Functions................22 7. Configuring the Camera ................... 24 7.1. RS-232C control..................24 7.2. CV-A2 RS-232C command list..............25 7.3. Camera Control Tool for CV-A2..............26 7.3.1. Control Tool Windows ................ 26 7.3.2. Camera Control Tool Interface ............. 27 7.3.3.

  • Page 3: General

    The CV-A2 is a monochrome progressive scan 1/1.8” CCD camera with 2 Megapixel resolution. The CV-A2 camera is in the popular CV-A1 family. It is designed for automated inspection, featuring a small housing and a wide range of unique functions. The asynchronous trigger can be set to work in several modes, to allow such functions as pulse width controlled shutter, programmable shutter speed and long time integration.

  • Page 4: Locations And Functions

    CV-A2 4. Locations and Functions Fig. 1. Locations. 12 pin Hirose connector for frame grabber interfacing and power (12V DC). BNC connector for video output. VS 1.0 Vpp 75 Ohm. 6 pin Hirose connector for trigger input and RS-232C control interface.

  • Page 5: Pin Assignment

    CV-A2 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 rear Pin configuration is compatible with EIAJ standard Pin no. Signal Remarks +12 V DC input Video/Iris video (IS=1 for iris video). 0.7 Vpp >1kΩ termination HD input/HD output *) SW502.3 on for 75Ω.

  • Page 6: Input And Output Circuits

    CV-A2 5.3. Input and Output Circuits In the following the principle for the input and output circuits for video and timing signals are shown. Jumper settings are shown as for factory default. 5.3.1. Video output Video Video CXA1310 CXA1310 300 mV...

  • Page 7: Cv-A2 Block Diagram

    CV-A2 5.4. CV-A2 Block Diagram ICX274AL Fig. 8. Block diagram. 6. Functions and Operations 6.1. Basic functions Some of the primary camera functions need a general introduction before the operation modes are described. The list below shows the primary functions from the command list.
  • Page 8 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-A2 has only vertical binning. With V binning the pixel charge from 2 adjacent lines are added together in the horizontal ccd register.

  • Page 9: Ccd Sensor Layout And Full Image Format

    CV-A2 In normal trigger mode (TR=0) shutter speed up to 1/200,000 sec. can be used. In all triggered shutter modes, the shortest shutter time is limited to ≥1.44 H. (1/12,000). In triggered shutter modes with partial scan or binning, the longest shutter speed is not limited by the frame readout time.

  • Page 10: Input-Output Of Hd/Vd Signals

    CV-A2 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, the camera will synchronize to it. If no external sync signals are applied, the camera will operate with its internal x-tal controlled sync.

  • Page 11: Continuous Operation (Non Triggered)

    CV-A2 6.3. Continuous Operation (Non triggered) Trigger Mode Normal. TR=0. It is for applications where the camera is continuous running without external trigger. In normal mode the shutter mode can be normal, programmable or auto. (SM=0, SM=1, SM=2). The shutter will work in all 16 steps up to 1/200,000 second or with the programmable exposure in 1250 steps.
  • Page 12 CV-A2 Fig. 16. Vertical timing details. Full (and V binning.). Table showing the figures for scanning Scanning V period Effective video Remarks Full 1252H 1220H 1/2 partial 676H 610H Shown on timing diagram 1/3 partial 474H 408H 1/6 partial 274H 204H Fig.

  • Page 13: External Trigger Modes

    CV-A2 6.4. External Trigger Modes This camera has 6 external asynchronous trigger modes, which can be set by RS-232C commands. Edge Pre-select Mode. TR=1 Pre-selected exposure. (SM=0, SM=1) Pulse Width Control Mode. TR=2 Pulse width controlled exposure. Frame Delay read out mode. TR=3 PWC exposure read out by ext.

  • Page 14: Edge Pre-Select Mode

    CV-A2 6.5. Edge Pre-select Mode The exposure starts at the first HD pulse after the trigger leading edge. It stops and is read out after the duration of the shutter time selected. It can be the first 10 steps in normal or 2047 steps in programmable shutter.

  • Page 15: Pulse Width Control Mode

    CV-A2 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 resulting video is read out. The accumulation is H synchronous.

  • Page 16: Frame-Delay Read Out Mode

    CV-A2 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. (Like PWC mode.) The accumulation is H synchronous. The accumulation starts at the first HD pulse after the leading edge of the trigger, and it stops after the first HD after the trailing edge of the trigger.

  • Page 17: Long Time Exposure Mode

    CV-A2 6.8. Long Time Exposure Mode The exposure time is the interval between 2 external VD pulses sent to the VD input. The exposure starts after the input of a VD, and it ends after the next VD input, which again starts a new exposure.

  • Page 18: Start/Stop Mode

    CV-A2 6.9. Start/Stop Mode The exposure is controlled by the interval between the external trigger pulse and an external VD pulse. The exposure start at the first HD pulse after the trigger leading edge, and it stops after the rising edge of the VD. An EEN pulse will indicate the active accumulation time, and a WEN pulse indicates that the resulting video is being read out.

  • Page 19: Smearless Mode

    CV-A2 6.10. Smearless Mode This mode will reduce the unwanted smear signal from a highlighted scene when a short exposure time is used. The trigger mode is like edge pre-select, but a dummy readout is performed before the active accumulation is started. It will remove the smear above the highlighted parts in the image, but there is still smear left below highlighted areas.

  • Page 20: Sensor Gate Control

    CV-A2 6.12. Sensor Gate Control This mode is for applications with strobe flash illuminations or long time accumulations up to several frames. In this mode the camera is running continuously with shutter off. The internal Sensor Gate SG in line #14 after the falling VD edge stops the accumulation in the photo diode array, and transfer the accumulated charge the vertical ccd register for readout.

  • Page 21: Other Functions

    CV-A2 6.13. Other Functions. Here a short description of functions not covered in the previous chapters. Scanning. SC=0 through 3. The CCD scanning format can be selected between full or partial scanning. With partial scanning only the vertical central part of the CCD sensor is read out with a higher frame rate. The partial scan is done by a fast dump read out of the lines in the vertical ccd register down to the top of the partial image.
  • Page 22 For adjusting the wanted white clip level. Normal 800 mVpp ±30 mv. Note! The clip level can be slightly reduced if GA is –64. Mode and function matrix. The following table shows which functions will work in the different modes for CV-A2. Func. Shutter Part.

  • Page 23: Request Functions

    Fig. 26. shows some printout examples from a PC running terminal emulator software. (Hyper terminal). Status, version, camera ID, model name, user ID and the help list are shown. Please refer to chapter 7.1. RS-232C control and chapter 7.2. CV-A2 Command List. Echo Back. EB=1.
  • Page 24 SA(Save settings into EEPROM): 1=user1, 2=user2, 3=user3 EA(Eeprom current area no.): return the current area no. of eeprom *** Firmware Version 0.07 ***** Copyright(c) 2004 JAI Corporation ***** Fig. 26. Terminal printout of ID, status and Help for CV-A2. - 23 -...

  • Page 25: Configuring The Camera

    All configuration of the A2 camera is done via the RS-232C port. The camera can be set up from a PC running terminal emulator software, or using JAI´s camera control software. Below is the description of the ASCII based short command protocol.

  • Page 26: Cv-A2 Rs-232C Command List

    CV-A2 7.2. CV-A2 RS-232C command list. Command Name Format Parameter Remarks A – General settings and useful commands Echo Back 0=Echo off 1=Echo on Off at power up EB=[Param.]<CR><LF> Camera Status request ST?<CR><LF> Actual setting Online Help request HP?<CR><LF> Command list Firmware version VN?<CR><LF>...

  • Page 27: Camera Control Tool For Cv-A2

    CV-A2 7.3. Camera Control Tool for CV-A2 From www.jai.com Camera Control Tool for Windows 98/NT/2000 can be downloaded. The control tool contents a camera control program and tools for making your own program. For the integrator and experienced user, the Camera Control Toll is much more than a program with a window interface.

  • Page 28: Camera Control Tool Interface

    The about window contains a picture of the camera and information about the version of the program, Internet connection to JAI A/S and access to the help documents. The List box that contains the help documents will list all files, which have the extension .pdf and that are found in the program (default) folder C:\Program Files\JAI A-S\’Control Tool Name’...
  • Page 29 CV-A2 RS-232 communication: 1. Select ’COM-ports’ from the ’CL Manufacturer/COM-ports’ list Box. 2. Select the communication port, where the serial cable is connected to the camera from the ’Serial Port’ list box or click the ‘Auto’ button to search for a camera on communication port 1 to 16.

  • Page 30: Using The Camera Control Tool

    3. It is possible to work with the Camera Control Tool when the camera is online and when the camera is offline. 4. The newer JAI cameras always start up with the last used user area (but for some old models it will start up with the last saved user area.) 5.

  • Page 31: Internal Jumper Settings

    CV-A2 7.4. Internal Jumper Settings Jumper for pixel clock out. R615. Factory setting is short. Fig. 28. Jumper position 8. External Appearance and Dimensions Fig. 29. Dimensions - 30 -...

  • Page 32: Specifications

    CV-A2 9. Specifications 9.1. Specification table Specifications CV-A2 Scanning system Progressive 1252 lines 15 frames/sec. Pixel clock 36.15 MHz Line frequency 18.828 kHz (1920 pixel clock/line) Frame rate for full frame 15 frames/sec. (1252 lines/frame) CCD sensor 1/1.8” progressive monochrome IT CCD. Sony ICX274 Sensing area for video out 7.13 (h) x 5.37 (v) mm...

  • Page 33: Spectral Sensitivity

    CV-A2 9.2. Spectral Sensitivity 1000 Wave lenght (nm) Fig. 30. Spectral sensitivity - 32 -...

  • Page 34: Appendix

    CV-A2 10. Appendix 10.1. Precautions Personnel not trained in dealing with similar electronic devices should not service this camera. The camera contains components sensitive to electrostatic discharge. The handling of these devices should follow the requirements of electrostatic sensitive components.

  • Page 35: Users Record

    Company and product names mentioned in this manual are trademarks or registered trademarks of their respective owners. JAI A-S cannot be held responsible for any technical or typographical errors and reserves the right to make changes to products and documentation without prior notification.

Table of Contents