Progressive Scan Monochrome CCD Camera CV-A11 Operation Manual Camera: Revision B Manual: Version 2.
CV-A11 DECLARATION OF CONFORMITY AS DEFINED BY THE COUNCIL DIRECTIVE 89/336/EEC EMC (ELECTROMAGNETIC COMPABILITY) WE HEREWITH DECLARE THAT THIS PRODUCT COMPLIES WITH THE FOLOWING PROVISIONS APPLYING TO IT. EN-50081-1 EN-50082-1 Table of Contents 1. General......................................................................................................... 2 2. Standard Composition ....................................................................................... 2 3. Main Features ...............
CV-A11 1. General The CV-A11 is a monochrome progressive scan 1/3” CCD cameras, designed for automated inspection application, featuring an extremely small housing and a wide range of unique functions. The asynchronous trigger can be set to work in several modes, to allow functions such as pulse width controlled shutter, programmable shutter speed and long time integration. All mode settings of the camera can be set up via an RS-232C interface, greatly reducing the need for mechanical switches of jumpers.
CV-A11 4. Camera Housing and Dimensions Fig. 1. Locations and dimensions. 1. 2. 3. 4. 5. 6. 7. Note *1): 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. Gain potentiometer for manual gain setting. Mounting holes, 8 x M3. For precision mounting use only the 4 holes located at the forward part of the bottom plate. 1/3” interline-transfer type CCD sensor.
CV-A11 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 9 1 2 8 10 11 3 7 12 4 5 6 Pin no. 1 2 3 4 5 6 7 8 9 10 11 12 Signal GND +12 V DC input GND Video output GND HD input/HD output VD input/VD output GND Pixel clk/WEN output WEN output Trigger input GND Remarks Parallel with the BNC connector. *) SW2.1 on for 75Ω. SW1.1 on for HD out. *) SW2.2 on for75Ω.
CV-A11 5.3. Input and Output Circuits In the following schematic diagrams the input and output circuits for video and timing signals are shown. For alternative connections refer to “10.1. CV-A11 emulating CV-M10 interfacing.” Jumper settings are shown as for factory default. 5.3.1. Video output The video output is a 75 Ω DC coupled circuit. The BNC connector and pin #4 on the 12-pin connector is in parallel. Avoid double termination. The video DC level is shown with 75 Ω termination.
CV-A11 6. Functions and Operations Apart from the standard continuous operation, the CV-A11 features three external asynchronous trigger modes (edge pre-select, pulse width controlled and start/stop) and a special frame-delay readout mode. Long integration time mode is also supported. In addition, the CV-A11 also provides a partial scan readout function. 6.1. Basic functions Some of the primary camera functions need a general introduction before the operation modes are described.
CV-A11 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. The camera scanning system should be set to the same as the external connected sync. In fig. 11 the time requirements to relation between VD and HD is shown.
CV-A11 6.4. External Trigger Modes This camera has 6 external asynchronous trigger modes, which can be set by RS-232C commands. 1. 2. 3. 4. 5. 6. Edge Pre-select Mode.TR=1 Pulse Width Control Mode. TR=2 Frame Delay read out mode. TR=3 Long Time Exposure Mode. TR=4 Start/stop Mode. TR=5 Smearless Read out mode. TR=6 Pre-selected exposure. (SM=0, SM=1) Pulse width controlled exposure. (HC=0, HC=1) PWC exposure read out by ext. VD. (HC=0, HC=1) Exposure is interval between ext. VD.
CV-A11 6.5. Edge Pre-select Mode An external trigger pulse initiates the capture (input on pin 11 of the 12-pin Hirose connector or pin 5 of the 6-pin Hirose). The leading edge of the trigger pulse initiates the exposure (this is a falling edge if factory default). If the polarity of this pulse is reversed, the camera can be configured to correct for it. The exposure time (accumulation time) is governed by the predefined shutter speed set by RS-232C.
CV-A11 6.6. Pulse Width Control Mode The leading edge of the trigger pulse initiates the capture. The exposure time (accumulation time) is governed by the duration of the trigger pulse. If the polarity of this pulse is reversed, the camera can be configured to correct for it. The exposure time range is 1.5H to 1000H (shortest and longest pulse duration). To use this mode: Set function: Trigger mode to “Pulse Width Control” TR=2 HD accumulation HC=0, HC=1 Polarity and other functions Input: Ext.
CV-A11 6.7. Frame-delay read out Mode This mode allows simultaneous capture of multiple camera using a common external trigger pulse subsequent multiplexed (sequential) readout using a single input frame grabber, as the user has control over when the image is read out from the CCD sensor. The exposure starts at the falling edge of the ext. trigger signal, and ends at the rising edge of the ext. trigger signal (in the same way as Pulse Width Control mode).
CV-A11 6.8. Long Time Exposure Mode The exposure time is the interval between 2 ext. VD pulses sent to the VD input of the camera (Pin No. 7 of the 12-pin Hirose connector). The exposure starts after input of the first ext. VD pulse, and ends after the next input of the next ext. VD pulse, which again starts a new exposure. The long time exposure is a continuous process where each external VD will synchronize the camera, stop on exposure, start a new exposure and read out the previous accumulated signal.
CV-A11 6.9. Start/Stop Mode The exposure time is controlled by the interval between the ext. trigger and the ext. VD signal. The exposure starts at the first HD pulse after the falling edge of the ext. trigger, and stops at the rising edge of the VD pulse. The range can be between 1/30 to 1/10,000 second. The Start/Stop mode is a continuous mode where the VD signal must be given continuously. It is not possible to input external VD randomly.
CV-A11 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 fast dump readout is performed before the active accumulation is started. It will remove the smear over the highlighted parts in the image, but there is still smear left below highlighted areas. The trigger leading edge will start the dummy readout. It takes 28 H before the exposure start.
CV-A11 6.11. Partial scan readout mode This mode allows increased frame rate, as only a selected number of lines are read out. The vertical resolution is reduced as outlined below. Partial scan will operate in normal continuous mode and all trigger modes. Fig. 23. Partial scanning.
CV-A11 6.12. Other Functions Gain and analogue settings. !! Do not adjust these settings unless you have knowledge to video adjustments !! AS, AGC Switch 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 12 dB range. Normal 700 mVpp ±30 mV. The level can be adjusted with AG, AGC level in the range 0 to 255.
CV-A11 7. Configuring the Camera 7.1. RS-232C control. All configuration of the CV-A11 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. Communication setting.
CV-A11 7.2. CV-A11 RS-232C command list. Command Name Format Parameter Remarks A – General settings and useful commands EB ST HP VN Echo Back EB=[Param.] Camera Status request ST? Online Help request HP? Firmware version VN? B – Timing and shutter related commands SC Scanning format SC=[Param.] TR Trigger mode TR=[Param.] SM SH Shutter mode Shutter speed SM=[Param.] SH=[Param.] PE Programmable expos. PE=[Param.
CV-A11 7.3. Camera Control Tool for CV-A11 From www.jai.com CV-A11 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. Below the different windows are shown. Control bar Windows for all functions Fig. 25. Windows from Camera Tools. For the integrator and experienced user, the Camera Control Toll is much more than a program with a window interface.
CV-A11 7.4. Internal Switch and Jumper Settings. 7.4.1. HD/VD input-output selection In the default setting the camera will accept external HD/VD signals on pins 6 and 7 of the 12 pin Hirose connector. The composite video signal from the camera will be synchronized to an external HD/VD source connected to the camera. TTL level (between 2 and 5 V). To set up the camera to output HD/VD signals on pins 6 and 7 on the Hirose connector follow these steps 1. Switch off the power to the camera. 2.
CV-A11 8. Specifications Specifications Scanning System Frame rate (Full frame) Line frequency CCD sensor Sensing area Effective pixels Pixels in video output Cell size Resolution horizontal Sensitivity on sensor S/N ratio Video output Gamma Gain Gain range Accumulation Synchronization HD sync Input/output Trigger input WEN output (write enable) EEN output (exposure enable) Pixel clock output Shutter CV-A11 Progressive 525 lines 30 frames/sec 29.96 Hz 15.734 kHz Monochrome 1/3” IT CCD.
CV-A11 10. Appendix 10.1. CV-A11 emulating CV-M10 interfacing The CV-A11 has a slightly different pin configuration on the 12-pin Hirose connector, compared to the M-series. This new configuration is compliant to the EIA-J standard. This means, however, that the CV-A11 is not completely backward compatible with the CV-M10, CV-M40, etc in all cases (depending on the cable configuration). The table below shows how to change the pin configuration, by changing internal solder jumpers.
CV-A11 10.2. 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. Do not attempt to disassemble this camera. Do not expose this camera to rain or moisture. Do not face this camera towards the sun, extreme bright light or light reflecting objects.
CV-A11 11. Users Record Camera type: CV-A11 Revision: (Revision A) Serial No. …………….. For camera revision history, please contact your local JAI distributor. Users Mode Settings: Users Modifications: 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.