introduction and definitions

Transcription

Fife Corporation
P.O. Box 26508, Oklahoma City, OK 73126, USA
Phone: 405.755.1600 / Fax: 405.755.8425
www.fife.com / E-mail: [email protected]
DAC-004
DIODE LINE CAMERA
Operating Manual
Web Edge Detection With Adjustment Module
09-03-2003
DAC-004 DIODE LINE CAMERA
Figure Sheet 1-863
09-03-2003
Figure Sheet 1-863
COPYRIGHT
Copyright
All rights reserved. Any reproduction of this Instruction Manual, in any form, in
whole or in part, requires the prior written consent of FIFE.
The information given in this Instruction Manual is subject to change without notice.
We have compiled this Instruction Manual with the greatest possible care and
attention: however, the possibility of error can not be completely excluded. FIFE
accepts no legal liability for incorrect information given and the consequences
arising therefrom.
Copyright  2003
FIFE Corporation
P.O. Box 26508, Oklahoma City, OK 73126, U.S.A.
FIFE GmbH
Postfach 1240, D-65762 Kelkheim/Ts., Germany
09-03-2003
Figure Sheet 1-863
09-03-2003
Figure Sheet 1-863
CONTENTS
Table Contents
1
INTRODUCTION AND DEFINITIONS ............................................................................................................... 1-1
General Introduction and Operating Instructions ............................................................................................... 1-1
Proper Usage of the DAC-004 Camera ............................................................................................................ 1-1
Option .......................................................................................................................................................... 1-1
Description of Camera ....................................................................................................................................... 1-2
Mode of Operation.............................................................................................................................................. 1-2
Measuring Range ............................................................................................................................................... 1-2
Aperture and Exposure Time ............................................................................................................................. 1-3
Material Web Edge............................................................................................................................................. 1-3
Direction of Scanning ......................................................................................................................................... 1-3
Analog Signal ..................................................................................................................................................... 1-3
Joker Control Using Single Edge Guiding with Single INTB-30 ......................................................................... 1-4
Signal Threshold ................................................................................................................................................ 1-5
Video signal ................................................................................................................................................. 1-5
Marking Signal.................................................................................................................................................... 1-6
Connector Configuration .................................................................................................................................... 1-7
2
INSTALLATION ................................................................................................................................................. 2-1
Installing the Camera Unit in the Plant ............................................................................................................... 2-1
Physical Installation ............................................................................................................................................ 2-1
Mounting ...................................................................................................................................................... 2-1
Dismounting................................................................................................................................................. 2-2
Connecting the Oscilloscope.............................................................................................................................. 2-2
3
COMMISSIONING ............................................................................................................................................. 3-1
Aligning the Camera........................................................................................................................................... 3-1
Requirements for commissioning ................................................................................................................ 3-1
Camera and installation components .......................................................................................................... 3-2
Aligning the Camera Mechanically ..................................................................................................................... 3-3
Aligning the camera parallel to the measuring field lamp ............................................................................ 3-3
Aligning the camera on the A axis ............................................................................................................... 3-4
Aligning the camera on the B axis (optional) ............................................................................................... 3-4
Adjusting the Lens.............................................................................................................................................. 3-4
Adjusting the aperture.................................................................................................................................. 3-5
Adjusting the distance setting (distance - focus) ......................................................................................... 3-5
Adjusting the Measuring Range (focal length - zoom) ..................................................................................... 3-6
4
ADJUSTMENT MODULES................................................................................................................................ 4-1
Adjustment Module Setting (FIFE part no. 585274-001).................................................................................... 4-1
Joker control ................................................................................................................................................ 4-1
Exposure time.............................................................................................................................................. 4-1
Trigger threshold.......................................................................................................................................... 4-1
Terminal assignment ................................................................................................................................... 4-2
Setting the INTB-30 Adjustment Module (FIFE Part-No. 573334-00Z).............................................................. 4-3
Operating elements ..................................................................................................................................... 4-3
Joker control ................................................................................................................................................ 4-3
09-03-2003
Figure Sheet 1-863
CONTENTS
Exposure time.............................................................................................................................................. 4-4
Monitoring of dirt contamination................................................................................................................... 4-4
Signal threshold ........................................................................................................................................... 4-5
Circuit diagram............................................................................................................................................. 4-5
Assignment of the terminals ........................................................................................................................ 4-6
5
TECHNICAL DATA............................................................................................................................................ 5-1
Product Specifications........................................................................................................................................ 5-1
Nameplate ................................................................................................................................................... 5-1
Protection type ............................................................................................................................................. 5-1
Operating temperature................................................................................................................................. 5-1
Ambient conditions ...................................................................................................................................... 5-1
Output signal to X1 ...................................................................................................................................... 5-1
Power supply voltage................................................................................................................................... 5-1
Dimensions .................................................................................................................................................. 5-1
Standards .................................................................................................................................................... 5-2
Options ........................................................................................................................................................ 5-2
Replacement part ........................................................................................................................................ 5-2
Accessory .................................................................................................................................................... 5-2
6
MAINTENANCE ................................................................................................................................................. 6-1
Maintenance Procedures ................................................................................................................................... 6-1
09-03-2003
Figure Sheet 1-863
INTRODUCTION AND DEFINITIONS
1
1-1
1
General Introduction and
Operating Instructions
These operating instructions are designed to facilitate commissioning, operating
and maintaining of the DAC-004 diode line camera and provide important
information for proper use of the system.
These operating instructions are directed to both the system integrator as well as
the operator who uses the DAC-004 diode line camera in production. They must
be read and used by all persons who have the responsibility of installing, operating
and maintaining the DAC-004 diode line camera.
Note:
These operating instructions use the term web for purposes of simplification.
The term may be used to refer to a material web in the paper or sheet processing
industries or strip in the steel industry.
Proper Usage of the
DAC-004 Camera
The DAC-004 diode line camera is used to detect a material web edge.
The DAC-004 is suitable:
•
•
For web edge guiding
For guiding the web center in paired usage
The DAC-004 diode line camera can be used to control both opaque and partially
transparent material. Applications can be implemented for light passing through or
simply striking a surface.
The DAC-004 represents the next step in development beyond the DAC-003 diode
line camera. It is thus used as a replacement device for the DAC-003.
Option
In addition to the basic version described in these operating instructions, the
DAC-004 diode line camera is also available with special software. This addition
provides enhanced functionality for the camera, for example to record two web
edges.
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Figure Sheet 1-863
1
1-2
Description of Camera
A diode line camera basically comprises the camera housing, the lens and the
protective tube. In the camera housing there is a CCD chip with over 7450 lightsensitive diodes (photodiodes). These photodiodes are arranged adjacent to each
other in a row or line; hence the name “diode line camera.“ As in a photographic
camera, the lens is used to adjust the focal length, aperture and distance.
Mode of Operation
The camera is mounted over a light source (measuring field lamp). The measuring field lamp is connected to a high-frequency ballast. The high frequency
guarantees an interference-free camera signal. The camera must be aligned so
that light falls onto all photodiodes. If part of the measuring field lamp is covered
by the material web, a corresponding number of the photodiodes are no longer
exposed, and the analog output signal changes proportional to the number of
darkened diodes.
Measuring Range
The measuring range, and thus the resolution, of the camera depends on the
distance of the camera from the material web. If a zoom lens is used, the
measuring range can be changed without changing the distance. Short focal
lengths (e.g. 35 mm, corresponding to a wide angle lens) produce a larger
measuring range. For long focal lengths (e.g. 210 mm, corresponding to a
telephoto lens) the measuring range is correspondingly smaller.
A customer drawing is produced for each application, detailing the following data:
•
•
•
•
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Distance: camera - material web
Distance: camera - measuring field lamp
Measuring range (focal length)
Direction of scanning
Figure Sheet 1-863
1
1-3
Aperture and Exposure
Time
The photodiodes require a certain amount of light (intensity). This amount of light
can be altered with the aperture and the exposure time. If the aperture size is
increased (low aperture index, e.g. 5.6) more light can strike the diodes. If too
much light strikes them, the camera signal is overshot. A long exposure time has
the same effect. The settings of the aperture and the exposure time are mutually
dependent.
The camera has an automatic exposure mechanism with a time range from 45 ms
to 1.585 ms.
A proportional voltage signal of 0V (45 ms) to 10.7V (1.585 ms) is provided to
monitor the exposure time. The exposure time can also be set externally.
Material Web Edge
In relation to scan direction, the first transition is interpreted by the camera as a
web edge. It makes no difference whether the camera detects the bright
measuring field lamp first, and then the dark material web, or vice versa.
Direction of Scanning
The DAC-004 with this configuration will only evaluate one web edge, even when
there is more than one edge in the measuring range. The direction of counting the
edges is dictated by the direction of scanning. The direction of scanning of the
camera is indicated by an arrow on the rear of the camera housing.
Analog Signal
The analog output signal (0–10 mA) of the camera is determined by the position of
the first edge in the camera measuring range. If the edge is at the start of the
scanning range, the camera delivers a low analog signal close to 0 mA. If the
edge is at the end of the scanning range, the camera delivers a high analog signal
close to 10 mA.
09-03-2003
Figure Sheet 1-863
1
1-4
Joker Control Using
Single Edge Guiding with
Single INTB-30
If the camera detects no edge, the edge may be outside the camera measuring
range to the right or left. The camera is not able to distinguish those two cases, so
a definition must be set for the analog output signal. This is done by means of the
joker control. The setting of the joker control depends on the direction of scanning.
The following example illustrates the point.
Diode Line
Camera
Diode Line
Camera
Plant Center
C
L
Web
mA
10
Plant Center
C
L
Web
Measuring Field Lamp
Measuring Field Lamp
Output Signal
mA
10
Output Signal
0
0
Camera Measuring Range
Figure 1 – Scan direction from center: outward
Figure 2 – Scan direction from center: inward
Figure 1) The direction of scanning is from the inside to
the outside (the reference point being the center of the
plant). If a test material is then pushed from the center
of the plant into the measuring range, the analog signal
will rise steadily from the starting value 0 mA (maximum
value 10 mA).
Figure 2) The direction of scanning is from the outside
to the inside (the reference point being the center of the
plant). If a test material is then pushed from the center
of the plant into the measuring range, the analog signal
will fall steadily from the starting value 10 mA.
In this case the joker control must be set so that the
analog signal of the camera with no web is 0 mA.
09-03-2003
In this case the joker control must be set so that the
analog signal of the camera with no web is 10 mA.
Figure Sheet 1-863
1
1-5
Signal Threshold
The signal threshold defines the exposure level as from which photodiodes are
rated as bright or dark. In scanning of opaque web material, the difference
between the bright measuring field lamp and the dark material web is very clear.
The signal threshold can be set in the middle between the bright and dark levels
(see Figure 3). In scanning of transparent materials, the difference between the
bright and dark levels is dependant on the material transparency. The setting of
the signal threshold should be adjusted accordingly.
The choice of a suitable signal threshold also depends on the ambient conditions.
Ambient light reflections in the material web have less influence when the signal
threshold is set higher. If the measuring field lamp is contaminated with dirt, it is
better to set the rating threshold to lower signal levels.
Video signal
To be able to adjust the camera the video signal must be represented on an
oscilloscope. The video signal begins with a negative trigger pulse, followed in
succession by the levels of the photodiodes (camera measuring range). The
interval between the trigger pulses represents the exposure time.
Bright Level
with Marking
Signal
Trigger
Pulse
Exposure Time
Dark Level
without Marking Signal
Figure 3 – Shown with light partially obstructed
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Figure Sheet 1-863
1
1-6
Marking Signal
To identify the signal threshold on the oscilloscope, a marking signal is
superimposed on the video signal. Signal levels above the rating threshold are
marked. Signal levels below the rating threshold are represented without
markings.
Marking Signal
Signal Threshold
Camera Measuring Rrange
Figure 4 – Marking of signal edge
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Figure Sheet 1-863
1
1-7
Connector Configuration
The connectors shown in Figure 5 are used in different configuration setups for the
DAC-004. The list that follows explains their primary function and use.
X1(analog:
-Single edge guiding using Adjustment Module
-Oscilloscope using Adjustment Module or VPA-01
X2(analog): -Not used. (Second edge output)
-Serial connection to PC
X3(digital):
-Not used. (Connection to FifeNet)
Fife-Tidland GmbH
FifestraBe 1
D-65779 Kelkheim
DAC 004-XXZ-YY/YYY
FW: 999999-999
SW: 999999-999
S/N: 99999/ZZZZ
X1
DC
00001
44Z
X2
X3
Figure 5 – DAC-004 connection diagram
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Figure Sheet 1-863
09-03-2003
Figure Sheet 1-863
INSTALLATION
2
2-1
2
INSTALLATION
Installing the Camera Unit
in the Plant
A customer drawing is produced for each application, detailing the following data:
• Distance: camera - material web
• Distance: camera - measuring field lamp
• Measuring range (focal length)
• Direction of scanning
Installation is based on this customer drawing.
Note:
The cameras are calibrated and tested prior to shipment on the basis of the
installation and camera drawings (focal length, aperture and distance). If these
data are maintained on installation in the plant, only the alignment of the camera to
the measuring field lamp will need to be checked at the commissioning stage.
Physical Installation
The cameras are fastened in place with a support in which the fine adjustment is
also located. This fine adjustment can be used to align the camera so that the
photodiode line is precisely aligned to the system or lighting. In contrast to other
web edge sensors, attention must also be paid to adjusting the lens and the
scanning direction for diode line cameras. The scanning direction is indicated by
an arrow on the camera housing (Figure 7).
Note:
If the DAC-004 camera you are installing is a replacement unit (DAC-003), it is
absolutely essential to observe the section entitled Dismounting.
Mounting
Proceed as follows while mounting the DAC-004 (see Figure7):
a.) Fasten the support (5) with the four screws (6).
b.) Insert the camera.
If you have just finished dismounting a camera, the information on distances or the
scanning direction obtained from that camera must now be observed (see the
section entitled Dismounting.
c.) Secure the camera in place with the clamping screws (7).
d.) Attach the connection cable and screw it tight.
e.)
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Replace the desiccant cartridge if it has turned pink.
(Fife-Tidland part number M134973)
Figure Sheet 1-863
INSTALLATION
2
2-2
Dismounting
Note:
Before dismounting a camera, we recommend that you determine and write down
some important information. This information will make it easier to set up and
commission a new camera when it is installed.
•
The distance from the rear edge of the camera to the support
OR
The distance from the rear edge of the camera to the measuring field lamp
Depending on the application, however, other suitable distances can be
measured.
•
Scanning direction
Dismounting a camera is done in the reverse order to the procedure for mounting
a camera.
Connecting the
Oscilloscope
Further calibration of the camera requires an oscilloscope. It is connected either to
the BNC socket of the camera module (in the switch cabinet), on the terminal box,
or directly on the camera with a VPA-01 test adapter (FIFE part no. 534169-001).
Note:
If the VPA-01 test adapter is used, the signal cable must be disconnected from the
camera and connected to the test adapter. The other end is connected by way of
the test cable (FIFE part no. 519 314-XXX) to the camera. The signal cable is then
connected to the oscilloscope (FIFE part no. 511511-XXX) at the BNC socket.
09-03-2003
Figure Sheet 1-863
COMMISSIONING
3
3-1
3
COMMISSIONING
Aligning the Camera
To obtain optimum guiding, the camera must be aligned precisely to the measuring
field lamp.
This requires an oscilloscope. The “Installation“ section describes where the
oscilloscope can be connected.
Requirements for commissioning
The camera must be mounted as detailed on the installation drawing.
The arrow on the camera body indicates the direction of scanning. Align the
camera so that the arrow runs parallel to the measuring field lamp. Guiding
configurations with two cameras must have either both arrows pointing toward the
center of the plant or both arrows pointing outward. The measuring field lamp
must be mounted at right angles to the direction of running of the web.
Measuring Field
90°
Diode Line Camera
Plant Center
C
L
Figure 6 – Top view: Diode line camera and measuring field lamp
There must not be any objects in the measuring range of the camera. All
photodiodes must be receiving as much light as possible. If web is covering part
of the camera measuring range, the web must be removed. Narrow webs can be
shifted as appropriate. If a test material is used during camera setup, the web
concerned must be positioned at the same distance from the camera as the
regular material web.
09-03-2003
Figure Sheet 1-863
COMMISSIONING
3
3-2
Camera and installation
components
1
2
8
3
7
10
8
4
15
5
9
6
16
14
17
13
18
19
7
20
21
12
11
B
A
Figure 7 – DAC-004 camera and camera light source assemblies
1
2
3
4
5
6
7
8
9
10
11
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Desiccant cartridge
Camera
Direction of scanning arrow
Adjuster device
Bracket
Fixing screws M6 x 125
Clamping screw for camera
Locking screw
Adjuster screw, B axis
Adjuster screw, A axis
Light source
12
13
14
15
16
17
18
19
20
21
Protective tube for lens
Multifunction adjuster ring (focus / zoom)
Lens
Aperture adjuster ring
Nuts (M4) x 8
Threaded pins
Rubber ring
Fixture
Securing screws (M5 x 5) x 4
Nuts (M4) x 4, self-locking
Figure Sheet 1-863
COMMISSIONING
3
3-3
Aligning the Camera
Mechanically
Turning the DAC-004 aligns the scanning direction of the camera to the lighting.
Swiveling the camera about the A and B axes aligns the position of the scanning
field to the lighting. The correct alignment of the camera is evaluated on the
oscilloscope using the camera video signal. It is described below.
a.) Turning the camera:
Slightly loosen screws (7) then tighten them again - see Align the camera
parallel to the measuring field light, Page 3-3.
b.) Swivel the camera:
Loosen the locking screws (8).
c.) Swivel the camera about the A axis:
with adjustment screw (10) - see Aligning the camera on the A axis, Page 3-4.
d.) Swivel the camera about the B axis:
with adjustment screw (9) - see Aligning the camera on the B axis, Page 3-4.
e.) Carefully tighten the locking screws (8) as far as they will turn freely and then
tighten in a criss-cross sequence.
Aligning the camera parallel to
the measuring field lamp
Uniform illumination of the photodiodes produces a
virtually horizontal bright-level characteristic on the
oscilloscope screen (Figure 9). An oblique
characteristic (Figure 8) means that the photodiode
line is not aligned parallel to the measuring field
lamp. Rotate the camera in its fixture until the video
signal improves.
Figure 8 – Not parallel to the measuring field lamp
09-03-2003
Figure 9 – Parallel to the measuring field lamp
Figure Sheet 1-863
COMMISSIONING
3
3-4
Aligning the camera on the A axis
Check that the camera is also aligned to the center
of the measuring field lamp (maximum brightness).
To do so, tilt the camera on the A axis until the
video signal has reached its maximum amplitude
with fixed exposure time or until shortest exposure
time is achieved with automatic exposure.
A
Aligning the camera on the B axis
(optional)
Extend a plumb line from the center of the camera
fixture mount and place the edge of a test web
material. The output current (0 – 10 mA) of the
camera can be measured at contact B (wire 2,
camera cable) and must be 5 mA. If it is not, swivel
the camera on the B axis.
B
Adjusting the Lens
The following settings are only required if the factory setting of the camera is not
suitable for the installation situation at hand. Proceed in this manner to make the
settings:
a.) Unscrew the protective tube.
b.) Loosen the locking screws (20 – Qty 4) (see Figure 7).
c.)
09-03-2003
Adjust the aperture - see Adjusting the aperture, Page 3-5.
Figure Sheet 1-863
COMMISSIONING
3
3-5
d.) Adjust the zoom - Adjusting the measurement range (focal length – zoom),
Page 3-6.
e.) Adjust the focus - see Adjusting the image sharpness (focus – distance),
Page 3-5.
f.)
Tighten the locking screws (20 – Qty 4) slightly.
g.) Screw on the protective tube again.
Adjusting the aperture
When the aperture is set correctly an almost square signal is to be seen on the
oscilloscope. The intervals between the trigger pulses as shown in Figure 3 should
be as short as possible (< 20 ms), but there should be no saturation. To change
the setting, rotate the aperture ring on the camera.
Figure 10 – Signal saturated
Figure 11 – Signal not saturated
Adjusting the distance setting
(distance - focus)
Change the distance setting on the multifunction adjuster ring of the lens until the
bright-to-dark transition of the video picture is as vertical as possible.
Figure 12 – Camera out of focus
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Figure 13 – Camera focused
Figure Sheet 1-863
COMMISSIONING
3
3-6
Adjusting the
Measuring Range
(focal length - zoom)
A test material slightly narrower than the camera measuring range is required. The
test material is placed in the center of the measuring range, so that both edges are
visible on the oscilloscope. The test material must be at the same distance from
the camera as the regular material web.
The measuring range can be changed with the multifunction adjuster ring on the
lens.
If the automatic exposure time is also used to monitor lamp contamination, it must
be ensured that the measuring range is not set too small, as otherwise too little
light will strike the photodiodes. The exposure time should not reduce significantly
in relation to the video picture with no web.
Diode
Plant Center
Line
C
L
Camera
Web
Measuring
Field Lamp
Figure 14 – Camera drawing
09-03-2003
Figure 15
Figure Sheet 1-863
ADJUSTMENT MODULES
4
4-1
4
ADJUSTMENT MODULES
Adjustment Module Setting
(FIFE part no. 585274-001)
Joker control
If scanning is toward the center of the plant, a jumper is required between
terminals 22 and 24. For scanning in the opposite direction no jumper is required.
Exposure time
Under normal circumstances the camera will work with the automatic exposure
mechanism. In such cases terminals 25, 27, 29 and 31 on the camera module
must not be connected. The exposure time is also used to monitor dirt
contamination of the camera and of the measuring field lamp. A voltage signal
proportional to the exposure time is applied to terminal 8.
It may be necessary to limit the exposure time. To do so, a jumper must be
connected between terminal 25 and terminal 27 or 29 or 31.
Trigger threshold
The trigger threshold is adjustable in steps by way of a jumper. The level of the
trigger threshold is identifiable on the oscilloscope by the marking signal.
Jumper Between
Terminal 10 and
terminal 12
terminal 14
terminal 16
terminal 18
terminal 20
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Trigger Threshold
8.3 Volts
6.7 Volts
5.0 Volts
3.3 Volts
1.7 Volts
Figure Sheet 1-863
ADJUSTMENT MODULES
4
4-2
Terminal assignment
Connection to the signal amplifier:
2.
+12V external (not required)
4.
Ground (GND)
6.
Camera output signal 0 - 10mA
8.
Exposure time - See Exposure time, Page 4-1
10. Adjustment of the evaluation threshold (wire jumpers) - see Trigger threshold
table, Page 4-1
12. Adjustment of the evaluation threshold (wire jumpers)
22. Joker control (wire jumper) - See Joker control, Page 4-1
24. Joker control (wire jumper)
26. Ground (GND)
28. Ground (GND)
30. Power supply voltage +24V
32. Power supply voltage +24V
Connection to the camera:
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1.
Video signal
3.
Camera output signal 0 - 10mA
5.
Light-dark threshold (evaluation threshold) - See Evaluation threshold,
Page 4-1
7.
Not used
9.
Exposure time -See Exposure time, Page 4-1
11.
Joker control - See Joker control, Page 4-1
13.
Ground (GND)
15.
Power supply voltage +24V
17.
Power supply voltage +24V
19.
Ground (GND)
21.
Ground (GND)
23.
Ground (GND)
25.
Adjusting the Exposure time (wire jumper) - see Exposure time, Page 4-1
27.
Adjusting the Exposure time (wire jumper)
29.
31.
Figure Sheet 1-863
ADJUSTMENT MODULES
4
4-3
Setting the INTB-30
Adjustment Module
(FIFE Part-No. 573334-00Z)
Operating elements
Switch:
S1: JOKER control
S2: automatic exposure system
Potentiometer:
(fixing screw)
R1: exposure time setting
R2: Alarm threshold for exposure time
R3: Trigger threshold
BNC jack:
X1: Video signal (output)
LED display:
H1: dirt contamination monitoring
Joker control
Switch S1 determines the value of the analog output signal if the web edge has left
the camera range. The scanning direction must be noted for this.
• Scanning direction towards the center of the system:
Without web (field of view free):
With web (field of view covered):
analog signal = 10mA
analog signal = 0mA
• Scanning direction away from the center of the system:
Without web (field of view free):
With web (field of view):
09-03-2003
analog signal = 0mA
analog signal = 10mA
Figure Sheet 1-863
ADJUSTMENT MODULES
4
4-4
Exposure time
With switch S2 it is possible to select between manual setting of the exposure time
and an automatic exposure time system (see Aperture and exposure time on Page
1-3).
• Manual exposure time:
Potentiometer R1 is used to set the exposure time manually.
• Automatic exposure time with limit:
The limit of the automatic exposure time is adjusted with
potentiometer R1.
Monitoring of dirt contamination
The exposure time is also used for monitoring of the camera and measuring field
lamp for dirt contamination. These signals are present on terminals 9 and 11.
Dirt contamination of the camera and the measuring field lamp are
indicated by light diode H1.
The alarm threshold for initiating dirt contamination monitoring can
be set individually with potentiometer R2 depending on the web
material and the environment.
To set the alarm threshold with R2, the camera and measuring field lamp should
be contaminated with the appropriate amount of dirt. If it is not possible to
contaminate them with dirt, the manual exposure time setting can be used to
simulate the reaction of the camera to dirt contamination.
NOTE: Follow these steps to simulate the dirt contamination procedure.
09-03-2003
a.)
Set switch S2 to 'Manual exposure time'
b.)
Set the exposure time according to the desired alarm threshold for dirt
contamination monitoring with potentiometer R1.
Figure Sheet 1-863
ADJUSTMENT MODULES
4
4-5
The factory setting for the alarm threshold is about 22ms, control value on terminal
5 = 5V
c.) Set potentiometer R2 so that light diode H1 displays the switchover point
d.) Set the exposure time back to the previously set value with potentiometer R1
(generally as far as possible to the right, thus for the maximum exposure time)
e.) Set switch S2 to the desired function.
(generally for the automatic exposure time)
Signal threshold
The threshold for the bright-dark rating of the photo diodes is set
with potentiometer R3. The signal threshold can be verified with
an oscilloscope on BNC jack X1. A measurement signal can be
generated for this purpose by partially covering the camera directly
on the lens (See Figure 13).
Circuit diagram
The variable z in the FIFE Part Number describes the assignment of the jumpers in
the circuit diagram.
09-03-2003
Figure Sheet 1-863
ADJUSTMENT MODULES
4
4-6
Assignment of the terminals
Terminals 1 through 12: Control box connection
(Corresponds to terminals 1 through 12 on the front side of the module)
1.
Supply voltage (+24V)
2.
Connection for cable shielding
3.
Ground (GND)
4.
Camera output based on edge position (0–10mA)
5.
Exposure time
6.
Ground (GND)
7.
Ground (GND)
8.
Power supply (+24V)
9.
For Version 573334-003 potential-free,for versions 573334-001 and -002
potential-bound switch output for exposure time errors
10. power supply (ground) for terminals 11 or 9
11. For versions 573334-002 and -003 potential-free, for version 573334-001
potential-bound switch output for exposure time errors
12. Power supply (ground) for terminals 11 or 9
Terminals 13 through 24: Camera connection
(Corresponds to terminals 13 through 24 on the front side of the module)
13. JOKER control
14. Exposure time:
Input for automatic exposure time
Output for manual exposure time
15. Bright-dark threshold
16. Video signal
17. Camera output based on edge position (0–10mA)
18. Cable shielding
19. Ground (GND)
20. Ground (GND)
21. Ground (GND)
22. Ground (GND)
23. Power supply (+24V)
24. Power supply (+24V)
09-03-2003
Figure Sheet 1-863
TECHNICAL DATA
5
5-1
5
TECHNICAL DATA
Product Specifications
Nameplate
The following information will be found on the nameplate:
1.
1
Address Fife-Tidland GmbH
DAC-004-XXX: model designation
FW: revision number of the firmware
SW: software number
Fife-Tidland GmbH
FifestraBe 1
D-65779 Kelkheim
DAC 004-XXZ-YY/YYY
FW: 999999-999
SW: 999999-999
S/N: 99999/ZZZZ
X1
DC
00001
Year of construction
X2
44Z
2.
Serial number
(Identification code DC and 5-digit number)
3.
Model number
X3
2
3
Protection type
Classified as per IP 67 (DIN 40050)
Plug connectors that are not used must be closed off with a blind stop.
Operating temperature
0 - 55°C
Ambient conditions
Non-condensing
Output signal to X1
0 - 10mA
Power supply voltage
12V - 24V
Dimensions
For customer-specific dimensions, please refer to the customer drawing.
09-03-2003
Figure Sheet 1-863
TECHNICAL DATA
5
5-2
Standards
The DAC-004 camera has been constructed according to the standards and
regulations of the European Union. A declaration of conformity is available on file.
EMC test based on:
EN 55011
EN 61000-602
Options
Adjustment module INTB-30
Drawing number 573334-00z
Adjustment module
Drawing number 585274-001
Replacement part
Desiccant cartridge M134973
Accessory
Test adapter VPA-01 M135871
Signal cable for connecting the oscilloscope
09-03-2003
Figure Sheet 1-863
MAINTENANCE
7
6-1
6
MAINTENANCE
Maintenance Procedures
Carry out the following maintenance work at regular intervals (depending on on-site
dirt contamination levels and temperature fluctuations).
Camera
Replace the desiccant cartridge when it turns pink.
(FIFE part no. 529217-002)
Clean the glass on the protective tube with a soft, non-linting cloth. Do not use
aggressive cleaning agents.
Measuring field lamp
Clean the measuring field lamp with a soft, non-linting cloth. Do not use aggressive
cleaning agents.
09-03-2003
Figure Sheet 1-863

introduction and definitions

Transcription

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