11. Users Record ............................................................................................... 24
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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.
The CV-A11 outputs an analogue video signal, with composite sync.
The latest version of this manual can be downloaded from: www.jai.com
The latest version of Camera Control Tool for CV-A11 can be downloaded from: www.jai.com
2. Standard Composition
The standard camera composition consists of the camera main body.
3. Main Features
• New compact size 1/3” monochrome CCD camera
• 648 (h) x 492 (v) pixels for VGA
• Progressive scan
• Single channel video output
• High S/N ratio > 56dB
• Extended range of functions and options compared with CV-M10
• Shutter speeds from 1/30 to 1/100 000 in 15 steps
• Programmable exposure
• Partial scanning 1/2, 1/3 and 1/6 for higher frame rates
• Internal, external HD/VD or random synchronization
• Edge pre-select, pulse width and start/stop trigger modes
• Long time exposure with external VD pulse
• Frame-delay readout mode in connection with pulse width controlled shutter
• Exposure enable EEN, write enable WEN and pixel clock out
• Short ASCII commands for modes setting via serial port
• Windows 98/NT/ME/2000 setup software
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CV-A11
4. Camera Housing and Dimensions
Fig. 1. Locations and dimensions.
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 precision mounting use only the 4 holes located at the
forward part of the bottom plate.
6. 1/3” interline-transfer type CCD sensor.
7. Lens mount for C-mount lenses. *1)
Note *1): Rear protrusion on the C-mount lens must be less than 10mm (0.4 inches approx.).
When IR-cut filter is used, it must be less than 7.0 mm (0.28 inches approx.).
The IR-cut filter is placed in the C-mount thread. The C-mount IR-cut filter must be ordered separately.
Pin configuration is compatible with EIAJ standard
Pin no. Signal Remarks
1 GND
2 +12 V DC input
3 GND
4 Video output
5 GND
6 HD input/HD output
7 VD input/VD output
8 GND
9 Pixel clk/WEN output
10 WEN output
11 Trigger input
12 GND
Parallel with the BNC connector.
*) SW2.1 on for 75Ω. SW1.1 on for HD out.
*) SW2.2 on for75Ω. SW1.2 on for VD out.
*)JP2 short. CW=1 for pclk. CW=0 for WEN
*) *2) GND if JP5 open and JP3 short
*) +12V DC if JP1 short and JP4 open
5.2. 6-pin Multi-connector (TRIGGER and RS232C)
Type: HR10A-7R-6PB (Hirose) male
Seen from rear.
Pin no. Signal Remarks
1 TXD out
1
6
2
5
3
4
2 RXD in
3 GND
4 GND
5 Trigger input
6 EEN output
Fig. 3. 6-pin connector.
Plugs for cable: HR10A-7P-6S
Notes:
*) Alternative signals can be placed on these pins by switch or jumper settings or
RS-232C commands. See chapter 10.1. and 10.2. for alternative signals.
Configurations shown in Bold + italic is factory setting.
*2) WEN (Write Enable) pulse indicates the period of effective video signal output. It is usefull
for setting the timing with framegrabber.
*3) EEN (Exposure Enable) pulse indicates the duration of the shutter, and can be used for
controlling strobe illumination.
EEN will be low all the time in normal continous mode (TR=0), if the selected
exposure time is longer than the frame readout time.
For schematic diagram of the input and output circuit alternative settings refer to 5.3.
RS-232C
RS-232C
*) Parallel with pin 11 on 12 pin con
*) *3). For WEN out refer to chapter 10.2.
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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.
Fig. 4. Video output.
5.3.2. Trigger input
The trigger input is AC coupled. To allow a
long pulse width, the input circuit is a flip
flop, which is toggled by the negative or
positive differentiated spikes caused by
the falling or rising trigger edges.
The trigger polarity can be changed.
Trigger input level 4 V ±2 V.
The trigger-input impedance is 1 kΩ.
JP1 and JP4 are for alternative
configuration for pin #10.
Fig. 5. Trigger input.
CXA1310
CXA1310
Trigger
Trigger
input
input
32
32
+12v
+12v
#5/6
#5/6
GND
GND
JP1
JP1
JP4#11/12
JP4#11/12
L
L
2µ7
2µ7
82p
82p
75
75
NC
NC
100
100
100n
100n
NCNC
NCNC
100n
100n
1k
1k
#4/12
#4/12
Video
Video
Output
Output
BNC
BNC
GND
GND
33k
33k
33k
33k
300 mV
300 mV
420 mV
420 mV
+5V
+5V
TTL
100k
100k
1k
1n
1n
1k
TTL
GND
GND
5.3.3. HD and VD input
The input circuit for external HD and VD
signals are shown. It can be 75 Ω terminated
by closing SW2. SW1 will switch to output the
internal HD and VD signal.
HD and VD input level is 4 V ±2 V.
Fig. 6. HD and VD input.
5.3.4. HD, VD, PCLK, WEN and EEN output
Output circuit for these signals are 75 Ω
complementary emitter followers. It will
deliver a full TTL signal. JP5 and JP3 are for
alternative configuration for pin #10.
Output level ≥4 V from 75Ω. (No
termination).
The WEN polarity can be changed.
Signal on pin #6/6 can be changed.
Fig. 7. HD, VD, PCLK, WEN and EEN output.
VD HD
VD HD
Input/output
Input/output
GND
GND
TTL
TTL
NC
NC
10k
10k
220
220
10k
10k
1k
1k
SW1
SW1
From VD HD
From VD HD
output
output
1n
1n
10
10
10
10
+
+
10µ
10µ
75
75
SW2
SW2
+5V
+5V
WEN/ EEN
WEN/ EEN
67
67
PCLK
PCLK
WEN
WEN
33k
33k
1k2
1k2
47p
47p
VD, HD
VD, HD
JP5
JP5
4k7
4k7
JP2
JP2
+5V
+5V
SW1
SW1
JP3
JP3
TTL
TTL
#6/6
#6/6
#9/12
#9/12
#10/12
#10/12
GND
GND
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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. The list below shows the primary functions from the command list.
SM Shutter Mode Normal shutter, Programmable Exposure
SH Shutter Speed Off to 1/100,000 second
PE Programmable Exposure 1.5 H to 1023.5 H
SC Scanning Format Full frame, 1/2 partial, 1/3, 1/6 partial
TR Trigger Mode Normal, Edge, PWC, frame delay readout
Long time exposure, start-stop, smearless (Edge)
HC HD Accumulation H Synchronous, H Asynchronous.
The shutter SM can be set to normal (SM=0), where the exposure time is selected from 15 fixed
step with the command SH, or programmable exposure (SM=1). Here the command PE allows
1023 step with 1 line period resolution (63.5 µs) in triggered mode. For normal mode, PE can be
up to 523 for full, 275 for 1/2, 195 for 1/3 and 115 for 1/6 partial scan.
The CCD scanning format SC 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. The partial part of the image is read out with normal speed. The
lines below the partial image are read out and dumped with a high speed.
Imaged scene
Imaged scene
1/6 PS, 80 pixels
1/6 PS, 80 pixels
1/2 PS, 240 pixels
1/2 PS, 240 pixels
1/3 PS, 160 pixels
1/3 PS, 160 pixels
648 pixels
648 pixels
Partial scanning.
Partial scanning.
Aspect ratio correct
Aspect ratio correct
Fig. 8. Partial scanning.
The accumulation mode HC is H synchronous (HC=0). For PWC mode (TR =2) and Frame Delay
readout (TR=3) it can also be set to asynchronous accumulation (HC=1).
In H synchronous mode, the exposure in will start at the first HD pulse after the trigger falling
edge. In H asynchronous mode the exposure will start immediately at the leading edge of the
trigger pulse without waiting for the HD. Fig. 9 and fig. 10 shows the details.
In normal continuous mode (TR=0) shutter speed up to 1/100,000 second can be used. In
triggered shutter modes, the shortest shutter time is limited to ≥1,5 H or 1/10,000. In triggered
shutter modes with full and partial scan, the exposure time is not limited to the frame read out
time. It can be longer.
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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.
The input is TTL level as factory setting. It can be 75 Ohm terminated by the internal switch on
the PK8299 board. SW2-1 for HD and SW2-2 for VD. On for 75 Ohm termination.
To output the internal HD/VD signals on pin 6 and 7 the internal switch SW1-1 and 1-2 on the
PK8299 board should be set ON. The output is TTL level from a 75-Ohm source.
Refer to “7.4. Internal Switch and Jumper settings.”
In trigger modes there are no continuous VD out. Only after an external trigger pulse, a VD pulse
will be output.
To use this mode:
Set function: SW 1 on PK8299 to IN for external VD/HD input. Factory default.SW 2 on PK8299 to 75 Ω for termination of VD/HD.
SW 2 on PK8299 to TTL for TTL level for VD/HD. Factory defaults.SW 1 on PK8299 to OUT for internal VD/HD output.
Input: Ext. VD in or int. VD out on pin 7 on 12-pin connector.
Ext. HD in or int. HD out on pin 6 on 12-pin connector.
Important notes on using this mode
External sync system should follow the camera scanning system.
Fig. 11. Ext. HD and ext. VD phase conditions.
6.3. Continuous Operation (Non triggered)
For applications that do not require asynchronous external trigger (continuous operation). This is
the factory default setting of the camera.
See chapter 7.1 on how to select this mode.
To use this mode:
Set function: Trigger mode to “Normal” TR=0
Shutter mode “Normal” or “Programmable” SM=0, SM=1 “Shutter Speed” SH=0 through 15
“Programmable exposure” for full scanning PE=1 through 523
PE for 1/2, 1/3 and 1/6 partial scan. < 275, 195, 115
Other functions
Input: Ext. VD on pin 7 on 12-pin connector. If used.
Ext. HD on pin 6 on 12-pin connector. If used.
Fig. 12. Horizontal timing details and pixel numbering for the CCD array.
Fig. 13. Vertical timing details and lines numbering for the CCD array.
NOTE. Fig. 12 and fig. 13 are omitted.
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