Pco VC45 User manual

VC45VC45
VM45VM45
Operating InstructionsOperating Instructions

Safety Instructions 3
PCO 1999
VMC45-03/99
Safety Instructions
For your own safety and in order to guarantee a safe operation
of the camera, please read carefully the following information
prior to using the device.
•Never operate the camera at places where water or dust
might penetrate.
•Place the camera on a sufficiently stable basis.
Shocks like e.g. dropping the camera onto the floor, might
cause serious damage to the device. Therefore exclusively
the tripod attachment at the bottom side should be used for
mounting the camera.
•Always unplug the camera before cleaning it. Do not use
cleaning liquids or sprays. Instead, use a dry, soft duster.
•Make sure that the connecting cable is in good condition and
that the link to the socket does not represent an obstacle.
•Detach the camera and contact the customer service in the
following cases:
−When cable or plug are damaged or worn-out.
−When water or other liquids have soaked into the device.
−When the device is not properly working although you
followed all instructions of the user's manual.
−When the camera fell to the floor or the housing has been
damaged.
−When the device shows apparent deviations of normal
operation.

Contents 5
PCO 1999
VMC45-03/99
Contents
1. Video Camera VC45
1.1 Features of the Camera............................................6
Video Standard ...........................................................................6
Shutter Control............................................................................6
Long Exposure............................................................................6
1.2 CCD Sensor..............................................................7
Overview of the used sensors.....................................................7
Lens-on-chip...............................................................................7
Spectral Response......................................................................8
1.3 Connections..............................................................8
Lens Mount.................................................................................8
Power Supply..............................................................................8
Video Output...............................................................................8
Pin Assignment...........................................................................9
1.4 Mode Settings.........................................................14
Operating Mode ........................................................................14
Long Exposure in Frame Mode .................................................15
Long Exposure in Field Mode....................................................15
Shutter Mode ............................................................................16
Gain Control..............................................................................16
Gamma Setting.........................................................................16
2. Video Module VM45
Pinning of the I/O Connector ST1..............................................17
DIP switches.............................................................................21
CCD select and standard..........................................................22
Gamma Setting.........................................................................23
3. Servicing, Maintenance and Cleaning
Instructions
Servicing, Maintenance and Cleaning Instructions....................24
Cleaning Method for the Optical Part.........................................24
4. Appendix
Customer Service......................................................................25
Warranty...................................................................................25
CE-Certification.........................................................................26
Dimensions and Weight............................................................26
Electrical Schematics of the board VMAIN................................27
System Data .............................................................................28
Operating Instructions VC45/VM45
Version 03/99
Subject to change without prior notice!!
Copyright by PCO, 1999

61. Video Camera VC45
PCO 1999
VMC45-03/99
VC45 VM45VC45 VM45
This manual contains important information and instructions for
the use of the Video Camera VC45 and the Video Module
VM45.
If you work with a Video Camera VC45, you will find all neces-
sary information in Chapter 1.
Chapter 2 includes additional information when working with a
Video Module VM45 (= VC45 without housing).
1. Video Camera VC45
1.1 Features of the Camera
The video camera VC45 is a high performance monochrome
camera, based on a solid state image sensor. The high quality
"lens-on-chip" CCD, combined with an advanced electronics, in-
creases sensitivity of the VC45 substantially, compared with
high standard video cameras. An absolute black level is
achieved via special darkened reference pixels, yielding a per-
fect linear relation between light input and output signal. A great
number of additional features makes the VC45 suitable for
nearly every application.
Video Standard The VC45 is easy to use. The analog video signal is a CCIR,
respect. a RS170 standard signal and compatible to the whole
video equipment on the market.
With a potentiometer at the rear panel of the camera the gain
can be set externally.
Shutter Control An integrated shutter control allows exposure times from 100µs
to 20ms (CCIR) respect. 16.7ms (RS170). It can be set by DIP
switches, parallel or serial input.
Long Exposure A long exposure time can be generated up to 20s by an external
or serial input. When using the external input a special power
down mode prevents the CCD from additional dark current.
There are two integration modes possible: FRAME interlaced
and FIELD interlaced.
The sensor of the VC45 is absolutely insensitive against over-
exposure, i. e. too much light cannot damage the CCD sensor.

1. Video Camera VC45 7
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1.2 CCD Sensor
Overview The following CCD sensors can be used in the camera:
CCIR
format resolution pixel size active sensor
1/2“ 741 x 576 pixel 8.6 x 8.3 µm 6.4 x 4.8 mm
2/3“ 741 x 576 pixel 11.6 x 11.2 µm 8.6 x 6.5 mm
RS170
format resolution pixel size active sensor
1/2“ 756 x 486 pixel 8.4 x 9.8 µm 6.4 x 4.8 mm
2/3“ 756 x 486 pixel 11.6 x 13.5 µm 8.8 x 6.6 mm
Lens-on-chip Each of the used CCD sensors have the “lens-on-chip“ inte-
grated which increases the sensitivity of about factor 2.
The following drawings show the principle function of the lens-
on-chip technical.

81. Video Camera VC45
PCO 1999
VMC45-03/99
Spectral Response The following drawing shows the spectral response of the used
sensors. Optional the VC45 is available with an infrared cutting
filter. All wavelength higher than about 680nm will be cut off.
= without filter
= with infrared cutting filter
1.3 Connections
Lens Mount The VC45 uses a C-Mount with a standard back focal length of
17.52mm (distance between the front edge of the C-Mount in-
sert and the focal plane of the CCD sensor). The C-Mount has a
fine adjustment to allow for small variations in the focal length of
instruments.
To adjust to a different back focal length, just loosen the set
screw at the bottom of C-Mount front plate. Rotate the C-Mount
insert to the desired position. (The C-Mount insert has a 0.5
thread suitable for fine adjustment.) Then secure the insert
again by tightening the set screw.
Power Supply The power supply (230V), delivered with the VC44, provides
12V (-5%, +10%). At 12V the power consumption is about
300mA. On the power supply a 12-pin special connector is
mounted.
Video Output The analog video output (BNC socket) supplies a standard
video signal (1Vpp, 0.3V Sync-Level on 75Ω) according to CCIR
or RS170 standard.
The video signal is compatible to all video equipment like re-
corder, printer, monitors, ...
Please use only 75Ωcables (e.g. RG59)!
Some monitors need an external Sync-signal. In this case you
need a connection between VIDEO OUT of the monitor and
SYNC IN of the monitor.

1. Video Camera VC45 9
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Pin Assignment The 12 pin socket at the camera rear panel has a standard pin
assignment as follows.
Please note that there are also special pin assignments possi-
ble. In this case a separate pin assignment is enclosed.
pin signal name level function input / output
1POWER GND ground input
2POWER +12V +12V DC input power input
3EXP TTL exposure input
4EXPD TTL exposure power down input
5ENB TTL enable shutter input
6ED0 TTL shutter control input
7ED1 TTL shutter control input
8ED2 TTL shutter control input
9CSYNC TTL composite sync output
10 VSYNC TTL vertical sync output
11 MODE TTL frame / field integration input
12 GENLOCK Video, TTL* genlock input
* signal level from 1 ... 5V is accepted
POWER GND Ground
POWER +12V Input voltage 12V (+10% / -2%)
EXP Long Exposure Control input
TTL level
The exposure time can be prolonged by a low signal.
Typical time range between 40ms ... 10s.
This input is checked at any rising edge of the VSYNC signal (=
end of the VSYNC). When the input is low, the integration time
will be prolonged for the next field/frame.
In the field integration mode multiple of 20ms will be exposed, in
the frame integration mode multiple of 40ms will be exposed.
The input is connected to a pull-up resistance.
12 pin socket of the
camera rear panel

10 1. Video Camera VC45
PCO 1999
VMC45-03/99
Remark The Long Exposure Control can only be active when the module
is in the parallel mode and the shutter is off!
DIP switch S1/pin 7 = open
DIP switch S1/pin2 = closed; ENB don’t care
or
DIP switch S1/pin2 = open; ENB = low
EXPD Long Exposure Power Down input
TTL level
For long integration times, the sensor can be set in a power-
down mode. This mode avoids the generating of an additional
dark current.
This input can be set parallel with the EXP input but must be re-
set at least 200ms before the EXP is reset.
The input is connected to a pull-up resistance.
Remark The Long Exposure Power Down can only be active when the
module is in the parallel mode and the shutter is off!
DIP switch S1/pin 7 = open
DIP switch S1/pin2 = closed; ENB don’t care
or
DIP switch S1/pin2 = open; ENB = low