Progressive Scan Monochrome CCD Camera
CV-A11
Operation Manual
Camera: Revision B
Manual: Version 2.1
A11Manualjul15
JPT 15-07-03
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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.
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2. Standard Composition
The standard camera composition consists of the camera main body.
3. Main Features
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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.
2.
3.
4.
5.
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.
6.
7.
1/3” interline-transfer type CCD sensor.
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.
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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
Pin no.
Signal
GND
+12 V DC input
GND
Remarks
1
2
3
1
9
Parallel with the BNC connector.
4
5
6
7
Video output
GND
HD input/HD output
VD input/VD output
GND
2
8
10
5
11
3
7
12
*) SW2.1 on for 75Ω. SW1.1 on for HD out.
*) SW2.2 on for75Ω. SW1.2 on for VD out.
4
6
8
*)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
9
Pixel clk/WEN output
WEN output
Trigger input
GND
10
11
12
Fig. 2. 12-pin connector.
Plugs for cable: HR10A-10P-12S
5.2. 6-pin Multi-connector (TRIGGER and RS232C)
Type: HR10A-7R-6PB (Hirose) male
Seen from rear.
Pin no.
Signal
TXD out
RXD in
GND
GND
Remarks
RS-232C
RS-232C
1
2
3
4
5
6
1
3
6
4
2
5
*) Parallel with pin 11 on 12 pin con
Trigger input
EEN output
*) *3). For WEN out refer to chapter 10.2.
Fig. 3. 6-pin connector.
Notes:
Plugs for cable: HR10A-7P-6S
*)
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)
*3)
WEN (Write Enable) pulse indicates the period of effective video signal output. It is usefull
for setting the timing with framegrabber.
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.
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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
#4/12
#4/12
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.
Video
Video
Output
Output
CXA1310
CXA1310
L
L
3
3
0
0
0
0
mV
mV
2
2
µ
µ
7
7
75
75
32
32
BNC
BNC
4
4
2
2
0
0
mV
mV
82p
82p
NC
NC
GND
GND
Fig. 4. Video output.
5.3.2. Trigger input
+12v
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.
JP1
100
#11/12 JP4
+5V
Trigger
input
33k
33k
100n
100n
1k
#5/6
TTL
100k
NC NC
1k
The trigger-input impedance is 1 kΩ.
JP1 and JP4 are for alternative
1n
GND
GND
configuration for pin #10.
Fig. 5. Trigger input.
5.3.3. HD and VD input
From VD HD
output
+5V
33k
+
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.
VD HD
Input/output
10µ 1k2
TTL
SW1
47p
1n 75
SW2
1k
NC
HD and VD input level is 4 V ±2 V.
4k7
GND
Fig. 6. HD and VD input.
5.3.4. HD, VD, PCLK, WEN and EEN output
+5V
VD, HD
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).
10k
TTL
SW1
JP2
220
WEN/ EEN
PCLK
67
#6/6
10
10
#9/12
#10/12
WEN
The WEN polarity can be changed.
Signal on pin #6/6 can be changed.
JP5
JP3
10k
GND
Fig. 7. HD, VD, PCLK, WEN and EEN output.
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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
SH Shutter Speed
Normal shutter, Programmable Exposure
Off to 1/100,000 second
PE Programmable Exposure 1.5 H to 1023.5 H
SC Scanning Format
TR Trigger Mode
Full frame, 1/2 partial, 1/3, 1/6 partial
Normal, Edge, PWC, frame delay readout
Long time exposure, start-stop, smearless (Edge)
H Synchronous, H Asynchronous.
HC HD Accumulation
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
648 pixels
Partial scanning.
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.
HD
HD
Trigger
Trigger
Accum
Accum
X
b
X
b
Fig. 9. PWC H synchronous accumulation.
Fig 10. PWC asynchronous accumulation.
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”
“Shutter Speed”
“Programmable exposure” for full scanning
PE for 1/2, 1/3 and 1/6 partial scan.
Other functions
SM=0, SM=1
SH=0 through 15
PE=1 through 523
< 275, 195, 115
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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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 PWC exposure read out by ext. VD. (HC=0, HC=1)
Long Time Exposure Mode. TR=4
Start/stop Mode. TR=5
Pre-selected exposure. (SM=0, SM=1)
Pulse width controlled exposure. (HC=0, HC=1)
Exposure is interval between ext. VD.
Exposure start by trigger and stop by ext. VD
EPS Exp. after fast dump readout.(SM=0, SM=1)
Smearless Read out mode. TR=6
The default accumulation is HD synchronously accumulation (HC=0). The accumulation starts at
the first HD after the trigger leading edge. Details are shown in fig.15.
In PWC mode (TR =2) and Frame Delay readout (TR=3), the accumulation mode HC can be set to
asynchronous accumulation (HC=1). The exposure will start immediately at the leading edge of
the trigger pulse without waiting for the HD. Fig. 16. below shows the details.
In Edge pre-select TR=1 and smearless TR=6, the shutter mode can be SM=0 or SM=1.
Smearless read out will reduce the smear caused by highlighted zones seen in images taken with
a short shutter speed. Before the accumulation can start, a fast dump read out is performed. It
takes 28H from trigger leading edge to start of accumulation.
Important notes on using trigger modes
•
The HD synchronized accumulation starts at the first HD after the trigger leading edge.
To avoid the <1H jitter caused by this delay, synchronize the external trigger to HD as
shown in fig. 14. The trigger level translations should be placed inside A, which is 8 µsec.
Do not input a new trigger before the previous video is read out. (WEN is high).
•
A=8 µsec
Fig. 14. Trigger/HD timing.
t
t33
t
t44
t
t55
t
t11
t
t22
HD
HD
HD
Trigger
Trigger
Trigger
Note:
Xsg and Xsub are
internal signals in the
camera. They are shown
in the timing diagram
for better
Accum
Accum
Accum
Xsub
Xsub
Xsub
Xsg
Xsg
Xsg
understanding.
EEN
EEN
EEN
Fig. 15. Pulse Width H synchronous accumulation.
t11
t
t33
t
t22
t
t44
t
H
H
D
D
T
T
r
r
i
i
g
g
g
g
er
er
A
A
ccum
ccum
X
X
sub
sub
X
X
sg
sg
E
E
E
E
N
N
Fig. 16. Pulse Width H asynchronous accumulation.
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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 pre-
defined shutter speed set by RS-232C.
To use this mode:
Set function:
Trigger mode “Edge Pre-select”
Shutter mode to “Normal” or “Programmable”
Shutter Speed using fixed steps
or Programmable exposure
TR=1
SM=0, SM=1
SH=0 through 7
PE=1 through 1023
Polarity and other functions
Input:
Ext. trigger to pin 5 on 6 pin connector (or 11 on 12 pin connector)
Ext. HD to pin 6 on 12 pin connector. (If used).
Fig. 17. Edge pre-select
Important notes on using this mode:-
•
As the start of exposure will be synchronized with the internal H signal, the start of
exposure may be shifted by max 1H. To avoid this shift (jitter), synchronize the camera
with an external HD and make sure that the trigger pulse aligns to the HD signal as shown
in Fig. 14.
•
The duration of the external trigger pulse must be greater than 1H. It is recommended to
make this longer, typically 9H. This is a TTL level pulse, which can be positive or
negative going (the camera can be set to accept any polarity).
Do not input ext. VD signal at pin 7 on 12 pin connector, as it may disturb the external
trigger function.
•
•
Do not input a new trigger before the previous video is read out. (WEN is high).
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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”
HD accumulation
TR=2
HC=0, HC=1
Polarity and other functions
Input:
Ext. trigger to pin 5 on 6 pin connector (or 11 on 12 pin connector)
Ext. HD to pin 6 on 12 pin connector. (If used).
Fig. 18. Pulse width control.
Important notes on using this mode:-
•
The exposure will start and stop synchronized to the internal H signal. It result in 1H
jitter. To avoid this jitter, synchronize the camera with an external HD and make sure
that the trigger pulse aligns to the HD signal as shown in Fig. 14.
•
This trigger mode is also supported by a function called “HD Asynchronous
Accumulation”, ACSII command “HC”. This function allows integration to start
immediately at the leading (falling) edge of the Ext. Trig pulse instead of at the next
horizontal drive pulse HD. Please refer to fig. 15 and fig. 16. To enable this function, set
HC=1. (Factory default is HC=0). If the falling edge of the trigger falls inside the HD low
pulse, a jitter up to 7.5µsec. can be expected. The exposure will start up to 7.5µsec.
after the falling edge of the trigger.
•
•
In HD asynchronous PWC mode avoid the trigger to raise inside the HD low period. It will
cause 1 line image position jitter.
Please note that the timing chart in Fig. 18 only shows the HD synchronous mode.
• Do not input external VD signal at Pin No. 7 of the 12-pin Hirose connector, as it may
disturb the external trigger function.
•
Do not input a new trigger before the previous video is read out. (WEN is high).
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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). The captured image is now stored in the CCD
until an ext. VD signal is given to the camera. The effective video signal is output 14H after the
falling edge of WEN signal.
To use this mode:
Set function:
Input:
Trigger mode to “Frame Delay Readout”
HD accumulation
Polarity and other functions
Ext. trigger to pin 5 on 6 pin connector (or 11 on 12 pin connector)
Ext. VD to pin 7 on 12 pin connector.
TR=3
HC=0, HC=1
Ext. HD to pin 6 on 12 pin connector. (If used).
Fig. 19. Frame delay read out
Important notes on using this mode:-
•
The readout delay time must not exceed 2 seconds. This is because visible dark current noise
may appear on the video signal due to the long time exposure of the CCD image sensor.
This trigger mode is also supported by a function called “HD Asynchronous Accumulation”,
ACSII command “HC”. This function allows integration to start immediately at the leading
(falling) edge of the Ext. Trig pulse instead of at the next horizontal drive pulse HD. Please
refer to fig. 15 and fig. 16. To enable this function, set HC=1. (Factory default is HC=0). If
the falling edge of the trigger falls inside the HD low pulse, a jitter up to 7.5µsec. can be
expected. The exposure will start up to 7.5µsec. after the falling edge of the trigger.
In HD asynchronous Frame-delay mode avoid the trigger to raise inside the HD low period. It
will cause 1 line image position jitter.
As the start of exposure will be synchronized with the internal H signal, the start of exposure
may be shifted by max 1H. To avoid this shift (jitter), synchronize the camera with an
external HD and make sure that the trigger pulse aligns to the HD signal as shown in Fig. 14.
It is recommended to use a strobe light (e.g. LEDs or Xenon tube), as the CCD must not be
illuminated during readout delay time. The EEN signal can be used to trigger a strobe light
See Fig. 11 for the phase relationship between ext. HD and ext. VD pulses.
•
•
•
•
•
•
Do not input a new trigger before the previous video is read out. (WEN is high).
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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. The exposure time can be selected in intervals of complete vertical timing
periods (=525H).
To use this mode:
Set function:
Trigger mode to “Long Time exposure”
Polarity and other functions
TR=4
Input:
Ext. trigger to pin 5 on 6 pin connector (or 11 on 12 pin connector)
Ext. VD to pin 7 on 12 pin connector.
Ext. HD to pin 6 on 12 pin connector.
Fig. 20. Long time exposure.
Important notes on using this mode:-
•
Exposure time range is 1/30 sec. to ∞. However, it is recommended not to use exposure over
2.0 sec. This is because visible dark current noise may appear on the video signal due to the
long time exposure of the CCD image sensor.
•
•
•
•
External sync system should follow the camera scanning system.
Ext. HD signal (TTL 2.0~5.0V) has to be input continuously.
See Fig. 11 for the phase relationship between ext. HD and ext. VD pulses
The EEN pulse is not provided when using this mode.
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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.
To use this mode:
Set function:
Trigger mode to “Start/Stop”
Polarity and other functions
TR=5
Input:
Ext. trigger to pin 5 on 6 pin connector (or 11 on 12 pin connector)
Ext. VD to pin 7 on 12 pin connector.
Ext. HD to pin 6 on 12 pin connector. (If used).
Fig. 21. Start/stop mode.
Important notes on using this mode:-
• As the start of exposure will be synchronized with the internal H signal, the start of exposure
may be shifted by max 1H. To avoid this shift (jitter), synchronize the camera with an
external HD and make sure that the trigger pulse aligns to the HD signal as shown in Fig. 14.
• Remark that the trigger should be applied up to 15.5 H after the ext. VD for the shortest
exposure.
•
•
•
External sync system should follow the camera scanning system.
See fig. 11 for the relationship between ext. HD and ext. VD.
Do not input a new trigger before the previous video is read out. (WEN is high).
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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.
The exposure stops and the resulting video signal is read out after the selected shutter time. It
can be the 9 first steps normal or 1023 step programmable. SM=0 or SM=1.
This mode will operate with full and partial scanning. An EEN pulse will indicate the active
accumulation time, and a WEN pulse indicates that the resulting video is read out.
To use this mode:
Set function:
Trigger mode “Smearless”
TR=6
Shutter mode to “Normal” or “Programmable”
Shutter Speed using fixed steps
or Programmable exposure
SM=0, SM=1
SH=0 through 7
PE=1 through 1023
Polarity and other functions
Input:
Ext. trigger to pin 5 on 6 pin connector (or 11 on 12 pin connector)
Ext. HD to pin 6 on 12 pin connector. (If used).
Fig. 22. Smearless mode.
NOTE. Fig. 22 is omitted.
Important notes on using this mode.
•
As the start of exposure will be synchronized with the internal H signal, the start of
exposure may be shifted by max 1H. To avoid this shift (jitter), synchronize the camera
with an external HD and make sure that the trigger pulse aligns to the HD signal as shown
in Fig. 14.
•
The duration of the external trigger pulse must be greater than 1H. It is recommended to
make this longer, typically 9H. This is a TTL level pulse, which can be positive or
negative going (the camera can be set to accept any polarity).
Do not input ext. VD signal at pin 7 on 12 pin connector, as it may disturb the external
trigger function.
•
•
Do not input a new trigger before the previous video is read out. (WEN is high).
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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.
The partial scanning settings are as follows:
Readout format
Frame rate Effective lines
ASCII-Command
Full frame readout
1/2 partial readout
1/3 partial readout
1/6 partial readout
30 fps
58 fps
73 fps
124 fps
492
240
160
80
SC=0
SC=1
SC=2
SC=3
To use this mode:
Set function:
Trigger mode to any
TR=0 through TR=6
Shutter mode to “Normal” or “Programmable”
Shutter Speed using fixed steps
or Programmable exposure
SM=0, SM=1
SH=0 through 7
PE=1 through 1023
Polarity and other functions
Input:
Ext. trigger to pin 5 on 6 pin connector (or 11 on 12 pin connector)
Ext. VD to pin 7 on 12 pin connector.
Ext. HD to pin 6 on 12 pin connector. (If used).
Important notes on using this mode:-
•
In order to minimize smear effects on the image, it is recommended to avoid strong light
outside the active partial scanned region.
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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.
RP, Rear Potentiometer
In manual gain mode, the gain level can be adjusted by the rear potentiometer, or it can be
adjusted by GA, Manual Gain level in the range 0 to 255.
SU, Setup level. This setting can adjust the setup level (or black level). Normal 20 mVpp ±2 mv.
WC, White clip level. To adjusting the desired white clip level. Normal 800 mVpp ±30 mv.
GA, Gamma select.
Gamma can be 1 (linear) or 0.45.
Signal and Polarity.
CW, Pixel clock/WEN out.
Select between Pixel clock or WEN out on pin #6 on the 6 pin connector. Note that JP2 on the
rear board PK8304 should be closed. (Factory setting). Refer to chapter 10.2
Set to on if the pixel clock is used. To avoid interference the pixel clock out should be off when
not used.
TP, Trigger polarity.
Will invert the trigger-input signal.
WP, WEN polarity.
Will invert the WEN output signal.
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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.
1 CD
Baud Rate
Data Length
Start Bit
Stop Bit
9600 bps
8 bit
1 bit
1 bit
None
4 DTR
6 DSR
2 RXD
3 TXD
5 GND
7 RTS
8 CTS
9 CI
9 pin
TXD
RXD
GND
RS 232C cable
D-con
PC COM
PORT
CAMERA
Parity
Xon/Xoff Control None
Fig. 24. RS-232C cable.
Protocol.
Transmit setting to camera:
NN=[Parameter]<CR><LF> (NN is any kind of command. Capital or small letters.)
To have all communication visible on the emulator screen, start with:
EB=1<CR><LF>
The camera answers:
COMPLETE<CR><LF>
Transmit the following to see the current parameter for a command:
NN?<CR><LF> (NN is any commands with parameters.)
The camera answers: NN=[Parameter]
Transmit the following to see the current camera settings:
ST?<CR><LF>
The camera returns the current parameter settings.
Transmit the following to get command list help:
HP?<CR><LF>
The camera returns a complete command list.
Unknown commands send to camera: (XY is unknown command).
XY=1<CR><LF>
The camera answers: 01 Unknown Command!!<CR><LF>
Invalid parameters send to camera: (99 is invalid parameter for SH).
SH=99<CR><LF>
The camera answers: 02 Bad Parameters!!<CR><LF>
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7.2. CV-A11 RS-232C command list.
Command Name
A – General settings and useful commands
EB Echo Back
ST Camera Status request ST?<CR><LF>
Format
Parameter
Remarks
Off at power up
Actual setting
Command list
3 letter version
0=Echo off
1=Echo on
EB=[Param.]<CR><LF>
HP Online Help request
VN Firmware version
HP?<CR><LF>
VN?<CR><LF>
B – Timing and shutter related commands
SC Scanning format
0=full frame
2=1/3 partial
0=normal
2=Pulse width
4=Long time
6=Smearless
0=Normal
1=1/2 partial
3=1/6 partial
1=Edge
3=Frame delay
5=Start/stop
SC=[Param.]<CR><LF>
TR Trigger mode
TR=[Param.]<CR><LF>
SM Shutter mode
SH Shutter speed
1=Programmab.
1=1/50
3=1/125
SM=[Param.]<CR><LF>
SH=[Param.]<CR><LF>
All15 step is valid
in normal trigger
mode.
0=1/30
2=1/60
4=1/250
5=1/500
6=1/1000
8=1/4000
10=1/20,000
12=1/60,000
14=1/100,000
0=*1), 1=1.5H
7=1/2000
In all trigger
modes shutter
speeds higher
than 9 will result
in 1/10,000
9=1/10,000
11=1/40,000
13=1/80,000
H= 63.56µsec
PE Programmable expos.
HC HD accumulation
1023=1023.5 H
PE=[Param.]<CR><LF>
HC=[Param.]<CR><LF>
a-sync. only for
TR=2 and TR=3
0=H synchron
accumulation
1=a-synchron
accumulation
C – Signals and polarity
SO Sync signal
CW Clock/WEN
0=no sync
0= WEN out
1=sync on video
1=Clock out
SO=[Param.]<CR><LF>
CW=[Param.]<CR><LF>
CW=0 if clock not
used
*2)
TP Trigger polarity
WP WEN polarity
0= active low
0= active low
1= active high
1= active high
TP=[Param.]<CR><LF>
WP=[Param.]<CR><LF>
D – Gain and analogue signals setting
0= manual gain
Range 0 to 255
Range 0 to 255
AS AGC Switch
0=AGC off
0=low
0=low
0=manual gain
0=low
0=low
1=AGC on
255=high
255=high
1=rear potm.
255=high
255=high
AS=[Param.]<CR><LF>
AG=[Param.]<CR><LF>
GA=[Param.]<CR><LF>
RP=[Param.]<CR><LF>
SU=[Param.]<CR><LF>
WC=[Param.]<CR><LF>
GS=[Param.]<CR><LF>
AG AGC Level
GA Manual gain Level
RP Rear Potentiometer
SU Setup Level
Range 0 to 255
Range 0 to 255
WC White clip Level
GS Gamma Select
0=gamma 1
1=gamma 0.45
E – Saving and loading data in EEPROM
Latest used data
area becomes
default at next
power up
LD Load settings from
0=Factory data 1=User 1 area
LD=[Param.]<CR><LF>
camera EEPROM
2=User 2 area
3=User 3 area
SA Save settings to
1=User 1 area
3=User 3 area
2=User 2 area
SA=[Param.]<CR><LF>
camera EEPROM
*1)
*2)
!!
PE=0 has no function in triggered mode. PE=1 is 0.5H in continuous mode
If positive logic is used (TP=1), the first trigger pulse after power up will be ignored.
Do not try to use commands not shown in the list.
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CV-A11
7.3. Camera Control Tool for CV-A11
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. It also provides an easy and efficient ActiveX interface built for MS
Windows 98, ME, NT and 2000. The OCX interface has the ability to connect to the camera using
the serial interface of the PC by reading and writing properties for the camera. This integration
requires simple programming skills within Visual Basic, Visual C++ or similar languages in a
Microsoft Windows environment.
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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. Remove the camera cover, by removing the 5 screws.
3. Locate switches SW1-1 and SW1-2 on the PK8299 circuit board, and set both in the ON
position. See fig. 26.
Note: The termination of HD/VD output is 75 Ohm.
7.4.2. Selecting termination of HD/VD input signals
The default setting of the HD/VD input is high impedance TTL. The camera expects to get a
signal that swings between 2 and 5 volts. This setting allows the largest number of camera to be
synchronized from a single HD/VD source (such as another camera or a frame grabber).
Under certain circumstances it may be necessary to terminate the HD/VD input, in order to
match the impedance of the signal source, to eliminate over/undershoot or standing waves in
the signal.
To change the HD/VD input to 75Ohm terminated, follow these steps
1. Switch off the power to the camera.
2. Remove the camera cover, by removing the 6 screws.
3. Locate switches SW2-1 and SW2-2 on the PK8299 circuit board, and set the according
both in the ON position. See fig. 25.
Int. HD/VD out
75Ω terminated
Ext. HD/VD in
(factory set)
TTL
(factory set)
Fig. 26. HD/VD witch positions on PK8299.
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8. Specifications
Specifications
Scanning System
Frame rate (Full frame)
Line frequency
CCD sensor
CV-A11
Progressive 525 lines 30 frames/sec
29.96 Hz
15.734 kHz
Monochrome 1/3” IT CCD. Sony ICX424AL, (ICX084AL-6, old)
4.9 (h) x 3.7 (v) mm
Sensing area
Effective pixels
Pixels in video output
Cell size
659 (h) x 494 (v)
648 (h) x 492 (v)
7.4 (h) x 7.4 (v) µm
Resolution horizontal
Sensitivity on sensor
S/N ratio
480 TV lines
0.05 Lux, Max gain, 50% video
> 56dB
Video output
Gamma
Composite VS signal, 1.0 Vpp, 75 Ω, DC Coupled
0.45 or 1.0
Gain
Manual – Automatic
Gain range
0 to + 15 dB
Accumulation
Frame (Progressive scan)
Int. x-tal, Ext HD/VD or random trigger
4 Vpp, 75Ω
Synchronization
HD sync Input/output
Trigger input
4 Vpp, 75Ω
WEN output (write enable)
EEN output (exposure enable)
Pixel clock output
Shutter
4 Vpp, 75Ω
4 Vpp, 75Ω
4 Vpp,75Ω
1/30, 1/50, 1/60, 1/125,1/250,1/500, 1/1000,
1/2000,1/4000, 1/10 000, 1/20 000, 1/40 000,
1/80 000,1/100 000 sec.
1.5 H to 1000H
Pulse width control
Start/stop
1/30 to 1/10 000 second
Long time exposure
Programmable exposure
Frame delay readout
Functions controlled by
RS-232C
1 frame to ∞
0.5H to 1023.5H
Time from PWC trigger input to ext. VD input
Scanning format, Trigger mode, Shutter speed,
Trigger/WEN polarity, Accumulation, Shutter mode,
Programmable exposure, AGC level, White clip,
Setup, Manual gain, AGC/manual gain, Internal/
Potentiometer gain set, Gamma, Pixel clock,
Commands and internal adjustments.
VD input/output, HD input/output
HD, VD and 75Ω termination on/off
-5 to + 45
Functions controlled by
Internal DIP switches
Operating temperature
Humidity
Storage temp./humidity
Power
20 – 80% non-condensing
-25 to 60 /20% - 80%
12V DC ± 10%, 1.8W Max.
C-mount
Lens mount
Dimensions
Weight
29 x 44 x 66mm (HxWxD)
150g
9. Spectral Sensitivity
1.0
0.8
0.6
0.4
0.2
0.0
400
500
600
700
800
900
1000
Wave Length (nm)
Fig. 27. Spectral sensitivity.
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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.
Please note: Only a qualified electronics technician or engineer should make these changes.
Hirose pin #
Function
JP2
Short
Open
JP3
JP5
JP1
JP4
Remarks
Note 2
9
9
10
10
11
11
PCLK output enabled
No connection
WEN output
Connected to ground
Ext Trigger input
+12V DC in
Open
Short
Short
Open
Open
Short
Short
Open
Note 1: Configuration shown in Bold+Italic is factory default setting
Note 2: The RS-232C command “CW” must be set to CLK
Fig. 28. PK8304 Rear Board of CV-A11
10.2. WEN out on pin 6 on 6 pin connector
Instead of EEN output on pin #6 on the 6 pin Hirose
connector, WEN can be output by jumper settings. The 2
jumpers are found on the main board PK8298B, if the
bottom plate is removed.
Signal on pin #6
EEN out
JP1
JP2
Remark
Open Short default
WEN out
Short Open
Bold+Italic is factory default setting
JP1
JP2
Fig. 29. PK8298A main board.
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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.
When this camera is not in use, put the supplied lens cap on the lens mount.
Handle this camera with the maximum care.
Operate this camera only from the type of power source indicated on the camera.
Power off the camera during any modification such as changes of jumper and switch setting.
10.3. Typical CCD Characteristics
The following effects may be observed on the video monitor screen. They do not indicate any
fault of the CCD camera, but do associate with typical CCD characteristics.
V. Smear
Due to an excessive bright object such as electric lighting, sun or strong reflection, vertical
smear may be visible on the video monitor screen. This phenomenon is related to the
characteristics of the Interline Transfer System employed in the CCD.
V. Aliasing
When the CCD camera captures stripes, straight lines or similar sharp patterns, jagged image on
the monitor may appear.
Blemishes
Some pixel defects can occur, but this does not have an effect on the practical operation.
Patterned Noise
When the CCD camera captures a dark object at high temperature or is used for long time
integration, fixed pattern noise (shown as white dots) may appear on the video monitor screen.
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CV-A11
11. Users Record
Camera type:
CV-A11
Revision:
Serial No.
(Revision A)
……………..
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.
JAI A-S, Denmark
Phone +45 4457 8888
Fax +45 4491 8880
JAI UK Ltd, England
Phone +44 0 1895 821 481
Fax +44 0 1895 824 466
JAI Corporation, Japan
Phone +81 45 933 5400
Fax +81 45 931 6142
JAI Pulnix Inc, USA
Phone (Toll-Free) +1 877 472-5909
Phone +1 408-747-0300
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