dc33e-01

dc33e-01
Digital Cam Switch Unit
CamCon DC33
Digitronic Automationsanlagen GmbH
Steinbeisstraße 3 • D - 72636 Frickenhausen • Tel. (+49)7022/40590-0 • Fax -10
Auf der Langwies 1 • D - 65510 Hünstetten-Wallbach • Tel.(+49)6126/9453-0 • Fax -42
Internet: http://www.digitronic.com • E-Mail: [email protected]
2 rue René Laennec 51500 Taissy France
Fax: 03 26 85 19 08, Tel : 03 26 82 49 29
E-mail:[email protected]
Site web : www.hvssystem.com
Digital Cam Switch Unit
CamCon DC33
Digitronic
Automationsanlagen GmbH
For your attention
This instruction manual relates to the CamCon DC33 from November 1996. The company Digitronic
Automationsanlagen GmbH reserves the right to make changes which present an improvement of the
quality or functionality of the device without prior notice. The instruction manual was created with great
care, although it may not be error-proof. We would be grateful for any communication relating to any
errors you may have found.
UP-date
You can also access this instruction manual on the Internet at http://www.digitronic.com in the latest
version as PDF file.
Qualified personnel
This device may only be started and operated by qualified staff. By qualified we mean personnel who
are entitled to handle, to earth and to lable devices, systems and power circuits in accordance with the
technology safety standards.
Liability
(1) The supplier is liable for damages caused by himself or by the owner of the rights up to the sum of
the sales price. He is not liable for loss of profits, forfeited savings, intermediate and successive
damages.
(2) The above mentioned limits to liability do not apply to insurance of named characteristics and
damages which were caused deliberately or through negligence.
Protection
The CamCon DC33 and this instruction manual are protected by copyright. All rights are reserved.
Neither the CamCon DC33, nor this document may be copied as a whole, photocopied, reproduced,
translated or transferred to electronic media of any kind or into machine readable format without prior
written permission by the company Digitronic Automationsanlagen GmbH.
Note:
Note:
Note:
We have examined the devices of the CamCon series for year 2000 compatibility and
have not found any adverse effects on any functions.
CamCon is a registered trademark of the company Firma Digitronic
Automationsanlagen GmbH.
The devices of the CamCon series comply with the standards for electromagnetic
compatibility: EN 55011, EN 55022, EN 55024 Part 2, EN 50082 Part 2, ENV 50140,
VDE 0843 Part 2,
VDE 0843 Part 4,
VDE 0871,
VDE 0875 Part 3 ("N"),
VDE 0875 Part 11, VDE 0877 Part 2, IEC 801 Part 3, IEC 801 Part 2, IEC 801 Part 4,
IEC 801 Part 5.
(c) Copyright 1992 - 2002 / File: DC33_E.DOC
Digitronic Automationsanlagen GmbH
Auf der Langwies 1
D-65510 Hünstetten - Wallbach
Tel. (+49)6126/9453-0 Fax. (+49)6126/9453-42
Internet: http://www.digitronic.com
E-Mail: [email protected]
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Fax: 03 26 85 19 08, Tel : 03 26 82 49 29
E-mail:[email protected]
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Digitronic
Automationsanlagen GmbH
Digital Cam Switch Unit
CamCon DC33
TABLE OF CONTENTS
1. Introduction........................................................................................................................................... 4
2. Principle of function.............................................................................................................................. 5
2.1. Delay time compensation.................................................................................................................. 6
2.1.1. Calculating the delay time .............................................................................................................. 8
2.1.1.1. Calculating the delay time through relocations that have already occured ................................. 8
2.1.1.2. Calculating the delay time through the difference of measured values....................................... 8
3. Installation ............................................................................................................................................ 9
3.1. Dimensions ....................................................................................................................................... 9
4. Electrical connections ........................................................................................................................ 10
4.1. Pin allocation CamCon with 8 or 16 outputs ................................................................................... 10
4.2. The encoder .................................................................................................................................... 11
4.3. The outputs ..................................................................................................................................... 11
4.4. Precautions to be taken at welding operations ............................................................................... 11
5. Outline of the operator terminal.......................................................................................................... 12
5.1. Frontview CamCon ......................................................................................................................... 12
5.2. The output display........................................................................................................................... 12
5.3. The seven-segment display ............................................................................................................ 12
5.3.1. Display of position or speed ......................................................................................................... 12
5.4. The keyboard .................................................................................................................................. 12
6. Commissioning................................................................................................................................... 13
6.1. Complete deletion ........................................................................................................................... 13
6.2. Initialization...................................................................................................................................... 13
6.2.1. User key for the system registers................................................................................................. 13
6.2.2. The encoder resolution ................................................................................................................ 14
6.2.3. The Forwards/Reverse change over............................................................................................ 14
6.2.4. The zero point correction ............................................................................................................. 14
6.2.5. Setting of the programming mode................................................................................................ 14
6.3. The dead time compensation.......................................................................................................... 14
6.4. Cam programming in the programming mode "0" .......................................................................... 15
6.4.1. Selecting an output....................................................................................................................... 15
6.4.2. Searching for cams ...................................................................................................................... 15
6.4.3. Setting the preset value................................................................................................................ 15
6.4.4. Shifting the activation point .......................................................................................................... 15
6.4.5. Shifting the deactivation point ...................................................................................................... 15
6.4.6. Leaving cam programming .......................................................................................................... 16
6.4.7. Examples for cam programming in the programming mode "0" .................................................. 16
6.4.7.1. Programming the first cam........................................................................................................ 16
6.4.7.2. Programming additional cams on an output ............................................................................. 17
6.4.7.3. Deletion of a particular cam ...................................................................................................... 18
6.5. Cam programming in the programming mode "1" .......................................................................... 19
6.5.1. Selecting an output....................................................................................................................... 19
6.5.2. Shifting the activation point .......................................................................................................... 19
6.5.3. Shifting the deactivation point ...................................................................................................... 19
6.5.4. Leaving cam programming .......................................................................................................... 19
6.5.5. Examples for cam programming in the programming mode "1" .................................................. 20
6.5.5.1. Cam programming .................................................................................................................... 20
6.5.5.2. Deletion of cams ....................................................................................................................... 20
7. Outline of operations .......................................................................................................................... 21
7.1. Switching the standard display........................................................................................................ 21
7.2. Programming of the system constants............................................................................................ 21
7.3. Dead time programming ................................................................................................................. 21
7.4. Cam programming .......................................................................................................................... 21
8. watch doc ........................................................................................................................................... 22
9. Troubleshooting ................................................................................................................................. 22
10. Technical data of the CamCon......................................................................................................... 23
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Digital Cam Switch Unit
CamCon DC33
Digitronic
Automationsanlagen GmbH
11. Key word table.................................................................................................................................. 24
Page: 4
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Digitronic
Automationsanlagen GmbH
Digital Cam Switch Unit
CamCon DC33
1. Introduction
Electrical cam switch units have been used successfully by the industry for a long time.The
experiences which have been collected in close co-operation during these years have been considered
during the development of the CamCon. The result is a compact digital cam switch unit which owns a
maximum of user friendliness and reliability.
The following characteristics distinguish the CamCon:
*
Experienced and reliable hardware
*
Short circuit-proof outputs
*
Graphical liquid crystal display with 128x64 picture elements on CamCon DC50/51
*
As many cams per output as programmable
*
Optimizing of the switching points while the machine operates
*
In steps of 100µs adjustable compensation of the mechanical delay time of switch units
*
Voltage supply 24V DC +/- 20%
*
Carrier rail assembly according to EN 50022 on CamCon DC16 and DC90.
*
Switchboard norm encasement 144 x 144 x 63mm according to DIN 43700 on CamCons DC40,50
and 51.
*
S5 operation group for Simatic S5 115U, 135U and 155U on CamCon DC115.
*
S5 connection via PG interface with L1 - BUS.
*
S7 operation group for Simatic S7 300 on CamCon DC300.
*
PLC logic module (optional)
*
Analog outputs (optional)
Note: Simatic is a registered trademark of the Siemens company.
Cam switch units are being used everywhere where switching procedures are being periodically
repeated. Digital cam switch units replace mechanical ones optimally and furthermore offer other
advantages, for example:
*
Simplification of assembly and adjustment procedures
*
Reproducible adjustments
*
Standardisation for all possible ranges of operation
*
Reliability
*
High switching speed
*
Delay time compensation
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Digital Cam Switch Unit
CamCon DC33
Digitronic
Automationsanlagen GmbH
2. Principle of function
Fig.: Presentation of the principle of a cam switch unit
For a better understanding of the function of a cam switch unit, its principle is presented here. It has 3
outputs containing the following cams:
Output 1:
Output 2:
Output 3:
Cam 1:
Cam 2:
Cam 3:
Cam 1:
Cam 2:
Cam 1:
Activation point
Activation point
Activation point
Activation point
Activation point
Activation point
60°
95°
325°
5°
95°
30°
Deactivation point
Deactivation point
Deactivation point
Deactivation point
Deactivation point
Deactivation point
85°
145°
355°
20°
145°
85°
The 3 as beds presented progressions of the output signals occur, if the 3 cam plates turn
anticlockwise past a sensor, which scans the cams on the 0° axis.
The duration of the activation of a mechanical cam switch unit, i.e. the range between the on and off
position, is determined by the length of the cams. The length and the position of the cams can only be
limitedly varied, which additionally demands a relatively high mechanical and chronological
expenditure. With the CamCon, these adjustments are realisable in a fraction of a second, besides the
number of the cams per bed is optional. A measuring system, which has been connected to the device
reports the position to the CamCon. The CamCon compares this with the programmed on and off
positions from all the outputs. If a position appears in a range of a programmed on / off position
(cams), all affected outputs will be switched.
Page: 6
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Digitronic
Automationsanlagen GmbH
Digital Cam Switch Unit
CamCon DC33
2.1. Delay time compensation
Every mechanical switching part (e.g. relays, magnetic valves) possesses a delay time, i.e. between
the triggering signal and the actual switching of the contacts passes a certain amount of time. Because
of that, problems can arise during procedures in which positionings are carried out in a moved system.
If such a process is driven with different speeds, different positionings will arise. One would have to
generate new (de)activation points for the switching signals for every speed in order to overcome this.
To explain the problem of the delay time compensation, the context shall be clarified using the
example of a packaging machine. During the process which is presented by the drawing, a dot of glue
is to be applied onto a precicely defined spot of a past going paber web.
The system has the following parameters:
magnetic valve
vp
vT
d
CamCon
-
glue nozzle
encoder
TMV -
Speed of the paper web
Falling speed of the drop of glue
Distance between the glue nozzle and
the paper web
Delay time of the magnetic valve
drop
paper
paper track
Points where the glue
hits the paper at the
different speeds
.
This happens without delay time compensation:
As soon as the measuring system reaches a certain position, the CamCon sends out an impulse to the
magnetic valve. This opens the glue nozzle for a short time, out of which the drop of glue then shoots.
Between the placing of the impulse and the falling of the drop passes a certain time, which is mainly
based on the delay time of the magnetic valve TMV Another delay results in the time in which the drop
needs to cover the distance d between the glue nozzle and the surface of the paper.
This flight time can be calculated with:
d
tFlight = v
T
So a delay time of tFlight+TMV results altogether. During this time,, the paper web moves a certain
distance further on. One could now decrease the position at which the magnetic valve is activated, so
that the drop of glue hits the same spot as during standstill. One gains a delay time compensation in
this way, which however can only function at one single speed of the paper. As soon as the speed of
the system and the paper web is e.g. doubled, the landing range of the drop of glue is moved again by
the distance x, so that it would, without delay time compensation, move to the rear by twice the
distance (2 ⋅ x) altogether.
The automatic delay time compensation of the CamCon makes it now possible to operate with
processes with variable speeds. The CamCon gathers the speeds of the system continually and
adjusts the cams, which define the moments of switching, on line in dependence of the speed.
According to this, the outputs of the switching parts are being switched on or off earlier. The direction
of movement is of no importance.
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Digital Cam Switch Unit
CamCon DC33
Digitronic
Automationsanlagen GmbH
A small numerial example shall serve the illustration:
Assuming that the drive roll with the measuring system has a circumference of 360mm, so that one
millimeter at the circumference corresponds exactly to one angle degree of the measuring system.
The unit has the following parameter:
vdrop =
d
=
TMV =
20m/s
20cm
20ms
Out of this results a flight time of the drop to
d
0,2m
tFlight =
=
10ms
vT
20m/s =
So the complete delay time amounts to Tdead, altogether = TMV + tFlight = 20ms + 10ms = 30ms
During this time the paper web travels by the distance x = vpaper ⋅ Tdead, altogether = 1m/s ⋅ 30ms =
30mm further on.
The switching point of the magnetic valve has to be transfered 30° to the front to compensate this
delay time.
If one doubles the speed of the system and with that vpaper, the distance x, by which the paper web is
moving on, is also doubled. In this case the switching point has to be transfered by 60° .
Tip: Note that in this explanation the delay time is a solid quantity, which is determined by the
mechanical regulation and switching parts as well as by the measurement of the construction,
hence it does not change.
If one were now to program the complete delay time of 30ms on the appropriate output of the
CamCon, the drop of glue would always hit the exact spot at any speed.
Page: 8
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Digitronic
Automationsanlagen GmbH
Digital Cam Switch Unit
CamCon DC33
2.1.1. Calculating the delay time
There are several possibilities for calculating the delay time of a relay or a valve.
2.1.1.1. Calculating the delay time through relocations that have already occured
Program the switching point of the relay or valve during a standstill of the machine. We use the
switching point of 200 degrees in our example. If the machine is now run with a speed of e.g 40 min-1,
a relocation occurs because of the delay time. This relocation is measured and is 40 degrees in our
example.
Attention:
To calculate the relocation correctly you have to set the programmed delay time of the
cam switch unit to zero.
The delay time of the switching member is calculated according to the following formula:
∆ way (in degrees) * 60 (sec./min.)
Delay time ( in sec. ) = speed (in min-1) * 360 (degrees/rotations)
40 * 60
Delay time ( in sec. ) = 40 * 360 = 0.1667 sec.
The calculated delay time is now set in the CamCon.
2.1.1.2. Calculating the delay time through the difference of measured values
The switching point is determined at a speed of e.g. 50 min-1. In our example, the programmed
switching point is at 200 degrees. The second measurement occurs at a speed of 80 min-1. The
needed switching point has to be set to 160 degrees to reach the exact switch point again at 80 min-1.
Attention:
To determine the two switching points you have to set the programmed delay time of the
cam switch unit to zero.
The delay time of the switching member is calculated with the following formula:
Delay time ( in sec. ) =
∆ way (in degrees) * 60 (sec./min.)
∆ speed (in min-1) * 360 (degrees/rotations)
40 * 60
Delay time ( in sec. ) = 30 * 360 = 0.222 sec.
The determined delay time is now entered into the cam mechanism. Since this delay time is set for the
whole range of the speed, it now becomes necessary to adjust the cam to the speed at 0 min-1. To
determine the exact activation point you have to enter the difference to the speed 0 min-1 at the first
measured activation point. The difference is calculated according to the following formula:
∆ way (in degrees) =
dead time ( in sec. ) * ∆ time (in min-1) * 360 (degrees/rotations)
60 (sec./min.)
∆ way (in degrees) =
0.222 * 50 * 360
= 66.6 degrees
60
The activation point of the cam is now relocated by 67 degrees, from 200 degrees to 267 degrees.
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Digital Cam Switch Unit
CamCon DC33
Digitronic
Automationsanlagen GmbH
3. Installation
The unit is inserted into a cutout for front plate installation (see chapter "3.1. Dimensions" on page 10).
Connect the groundig pins on the back of the encasement as well as the cable cover to a grounding
point of the switchboard door in the shortest possible way. All cable connections must be done in a
cold state! The connection cables, e.g. for the measuring system or the serial interface, must be wired
with covers, and the covers have to grounded on both ends. Analog signals must also be wired with
covers, and the covers have to be grounded on one end.
3.1. Dimensions
cutout as per
DIN 138 +1 x 138 +1
Fig.: Drawing to aid the installation of CamCon
Page: 10
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Digital Cam Switch Unit
CamCon DC33
4. Electrical connections
4.1. Pin allocation CamCon with 8 or 16 outputs
Pin
Pin
Pin
Pin
Pin
Pin
1:
2:
3:
4:
5:
6:
Pin 7:
Pin 8:
Pin 9:
Pin 10:
Pin 11:
Pin 12:
Pin 13:
Pin 14:
Pin 15:
Pin 16:
0V for encoder
Data A or +
Data B or Clock A or +
Clock B or +24V DC for encoder
0V supply
Output 1
Output 2
Output 3
Output 4
Output 5
Output 6
Output 7
Output 8
+24V DC supply
only for the CamCon with 16 outputs:
Pin 17:
Pin 18:
Pin 19:
Pin 20:
Pin 21:
Pin 22:
Pin 23:
Pin 24:
Pin 25:
Pin 26:
0V supply
Output 9 (A)
Output 10 (B)
Output 11 (C)
Output 12 (D)
Output 13 (E)
Output 14 (F)
Output 15 (G)
Output 16 (H)
+24V DC supply
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Digital Cam Switch Unit
CamCon DC33
Digitronic
Automationsanlagen GmbH
4.2. The encoder
The encoder is used for getting the actual position, necessary for the cam controller. Only encoders
with an SSI interface can be connected to CamCon DC33. The SSI interface is a common interface for
absolute single and multiturn encoders. The CamCon supplies the measuring system with 24Volt via
this interface. To read the data, CamCon sends a clock signal with an RS422 level to the encoder. The
encoder the answers synchronously with the output (data) of the position in Gray code. The frequency
of the clock signal depends on the length of the cable connecting ecoder and CamCon. The cable
length can be maximum of 200 metre.
Note: The data protocol corresponds with the Stegmann SSI Norm.
Tp
= clock impulse
Tmono
= mono flop time 25µs
Attention:
Use only a covered double entwined connection cable. The
wiring should not be near power current lines. Ground the
covers at both sides.
4.3. The outputs
CamCon is equipped with either 8 or 16 short circuit-proof outputs, depending on the version. They
emmit 24V high active signals and are not potentially free. They supply up to 500mA permanent
current in a surrounding temperature of 25°C. If an output short circuits or overloads, the device
switches off with the "A-Err" message.
Attention:
With inductive loads the outputs have to be switched with free wheeling
diodes.
4.4. Precautions to be taken at welding operations
For the duration of welding operations carried out at the machine, the connecting wires concerning the
data exchange from the measuring system to the CamCon and the power supply as well as the
grounding connections and inputs and outputs have to be separated from the CamCon.
Page: 12
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Digital Cam Switch Unit
CamCon DC33
5. Outline of the operator terminal
5.1. Frontview CamCon
5.2. The output display
The output display shows the current states of the outputs. If a LED is illuminated, the corresponding
output is active.
5.3. The seven-segment display
This display is divided into two ranges. The 1. and the 2. segment show the current mode of CamCon,
and the segments 3, 4 and 5 display the value pertaining to this mode.
5.3.1. Display of position or speed
After the activation and after having left the programming modes the 7-segment display shows the
rotatory speed in rotations/minute. By pressing the
is displayed. If the
key, the angular position of the encoder, e.g.
key is pressed, the display will show the rotatory speed.
5.4. The keyboard
The
key serves for increasing the input values by the value one. If you keep the
about two seconds, the input values will increase automatically until released.
The
key is used to reduce the input values by the value one. Keeping the
key pressed for
key pressed for about
two seconds will cause the input values to decrease automatically until the release of the
The
type.
key.
key serves for the initiation of the programming mode and/or for the modification of the input
The
key is used for the initiation of the system mode, for the selection of the system constants
and/or for selecting the outputs in the programming mode.
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Digital Cam Switch Unit
CamCon DC33
Digitronic
Automationsanlagen GmbH
6. Commissioning
Before activating the device for the first time, please check its wiring (see chapter 4. Electrical
connections).
Attention: With induced loads the outputs have to be switched with a freewheeling
diode. Covers or inductivities very close to the device inside the
switchboard have to be switched with a deletion unit as do those that are
wired to or influence the wiring of the device.
6.1. Complete deletion
After the first activation of the supply voltage the program memory is not in an initialized mode. This
leads to the CamCon' s display showing uncomprehendable symbols. That is why you (at the first
activation of your CamCon) have to put a complete deletion into process as follows:
1.
Activate the device (supply with voltage, +24V DC).
2.
Wait until the display shows either a number or
3.
Press the
key four times.
4.
Press the
key four times.
5.
Press the
key (about 2sec.), until
6.
Press the
key (about 2sec.), until the display goes out.
7.
Release the
.
is displayed.
key.
After a while (up to 40sec.) the display is reactivated. This completes the complete deletion. All cams
are erased, and all system registers have the standard value.
6.2. Initialization
After an activation of the voltage supply or a complete deletion the CamCon is in the standard mode.
This mode normally displays the rotational speed, the angular position of the encoder, or an error
message. The error message continues to be displayed until the system registers have been adjusted
to the encoder, provided the wiring is correct.
6.2.1. User key for the system registers
In order to be able to program the system registers, the following key sequence must be maintained:
1.
Press the
key four times.
2.
Press the
key four times.
3.
Keep the
key pressed for about 2 seconds, until the display shows
Page: 14
.
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Digitronic
Automationsanlagen GmbH
Digital Cam Switch Unit
CamCon DC33
6.2.2. The encoder resolution
The display
shows the resolution of the encoder in steps per rotation. The CamCon
operates with a standard encoder with a resolution of 360 steps per rotation. The resolution cannot be
adjusted or changed.
6.2.3. The Forwards/Reverse change over
After pressing the
key the display shows
. The display
shows that the
encoder is counting upwards clockwise, when looking at the shaft. You can reverse the rotational
direction of the encoder by pressing the
or the
key.
is displayed.
6.2.4. The zero point correction
If you press the
key, the display shows e.g.:
. 123 represents the current angular
position of the encoder. After having positioned the drive to mechanical "0", you can also shift the
current angular position to "0" by pressing the
key or the
electronic zero point coincide. The display shows
key, so that the mechanical and the
.
6.2.5. Setting of the programming mode
appears on the display after you press the
key. Here you can set the mode for cam
programming. Pressing either the
or the
key results in a change over from programming mode
0 to programming mode 1. The programming mode 1 is easier to use than the programming mode 0,
but it is not possible (in programming mode 1) to program several cams on one output.
You can return to the standard display with an additional pressing of the
display the current speed, e.g.:
key. CamCon should now
. If not, please refer to the chapter "Troubleshooting".
6.3. The dead time compensation
Keeping the
key pressed (for about 2 sec.) in the standard display mode lets the display show
. Here you can enter the dead time for output 1 in the range of 0ms to 255ms. By pressing
the
key or the
key, you can change this value in steps of 1 ms. By pressing the
key shortly,
you can proceed to the next output, and so on. The display shows e.g.
. This way you can
enter time factors for every single output, so that they are (de)activated earlier. You can abort the
programming of the dead time compensation at all times by pressing the
Version from: 04.06.2002
key.
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Digital Cam Switch Unit
CamCon DC33
Digitronic
Automationsanlagen GmbH
6.4. Cam programming in the programming mode "0"
6.4.1. Selecting an output
To initiate cam programming press the
key for about 2 sec., until the display shows e.g.
. This indicates that there is no programmed cam on output 1 in the 'Output selection'
mode. By pressing the
program cams.
key or the
key you can now select the output on which you want to
6.4.2. Searching for cams
By pressing the
key you leave the 'Output selection' mode
search'
. In the 'Cam search' mode
and enter the mode 'Cam
you can search for the cam activation
points by pressing the
key. Every time the
key is pressed, CamCon searches the memory for
activation points of the cams on the corresponding output. If no cam has been programmed,
is displayed. If a cam has been programmed over the whole perimeter, the display shows
.
6.4.3. Setting the preset value
and enter the 'Preset' mode
You leave the 'Cam search' mode
with the
pressing of the
key. By pressing the
or the
key you can now select a value, e.g. 100. This
value is the originator from which cams may either be reconstructed or erased by changing the
activation and the deactivation points.
6.4.4. Shifting the activation point
By pressing the
key you leave the 'Preset' mode
. A pressing of the
key or the
done according to the following system:
A short single pressing of the
and enter the 'Activation point' mode
key shifts the activation point by one step. This is
key will erase the activation point at the previously displayed preset
value, e.g. 100, and then the preset value is increased by 1, e.g. to 101. A short pressing of the
key
will lower the preset value (100 in our example) by 1 and then set a new activation point at e.g. 99.
6.4.5. Shifting the deactivation point
Pressing the
key once more leads you from the 'Activation point' mode
'Deactivation point' mode
. CamCon will first search for the deactivation point of the current
cam (e.g.:
). By pressing the
or the
This is done according to the following system:
A single short pressing of the
into the
key the deactivation point is shifted by one step.
key will set a new switching point at the previously displayed preset
value, e.g. 100. Then the preset value is increased by one, e.g. to 101. A short pressing of the
key
will lower the preset value, e.g. 100, by 1 and then delete the switching point 99. The new deactivation
point is then 99. A further pressing of the
key brings you back to the 'Output selection' mode
.
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Digitronic
Automationsanlagen GmbH
Digital Cam Switch Unit
CamCon DC33
6.4.6. Leaving cam programming
No matter in which programming mode you are, you can always leave cam programming by pressing
the
key. The standard display appears
6.4.7. Examples for cam programming in the programming mode "0"
6.4.7.1. Programming the first cam
Task:
After a complete deletion of the program memory and a successful initialization of the system, a cam
shall be programmed for output 2 from 100 to 200.
Solution:
1.
Press the
key (for about 2 sec.), you enter the 'Output selection' mode
2.
Press the
key to select output 2,
3.
Press the
key, you enter the 'Cam search' mode
4.
Press the
key, for the input of the preselection
5.
Press the
key and keep it pressed until
6.
If you have released the
the
or the
.
.
.
is displayed.
key too early or too late, you can adjust the preselection to 100 with
key.
7.
Press the
key, the activation point is displayed.
8.
Press the
key to program the deactivation point.
9.
Press the
key and keep it pressed until the display shows
CAUTION!
Do not keep the key pressed too long. It is best to keep the
and then adjust to 200 step by step.
10. Press the
.
.
key pressed until 190
key. You return to the standard display.
NOTE:
When programming the activation and the deactivation points you are programming "on line", i.e. if you
keep the
key pressed for too long, the cam will be programmed too long. Although you can correct
this subsequently with the
key, the range between the desired end of the cam and cams entered in
excess is erased. All cams already programmed in this range are lost.
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Digital Cam Switch Unit
CamCon DC33
Digitronic
Automationsanlagen GmbH
6.4.7.2. Programming additional cams on an output
Task:
A cam shall be programmed on output 2 from 300 to 330 in addition to an already existing cam, e.g.
from 100 to 200.
Solution:
1.
Press the
2.
Press the
key to select output 2,
already programmed cam.
3.
Press the
key, you enter the 'Cam search' mode
4.
Press the
key for the input of the preselection
5.
Press the
key and keep it pressed until
6.
If you have released the
the
key (for about 2 sec.), you enter the 'Output selection' mode
or the
. The display also shows the begin of the
.
.
appears on the display.
key too early or too late, you can adjust the preselection to 300 with
key.
7.
Press the
key, the activation point is displayed.
8.
Press the
key to program the deactivation point.
9.
Press the
key and keep it pressed until
CAUTION!
is displayed.
Do not keep the key pressed too long. It is best to keep the
and then adjust to 330 step by step.
10. Press the
.
key pressed until 320
key. You return to the standard display.
NOTE:
When programming the activation and the deactivation points you are programming "on line", i.e. if you
keep the
key pressed for too long, the cam will be programmed too long. Although you can correct
key, the range between the desired end of the cam and cams entered in
this subsequently with the
excess is erased. All cams already programmed in this range are lost.
Page: 18
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Digitronic
Automationsanlagen GmbH
Digital Cam Switch Unit
CamCon DC33
6.4.7.3. Deletion of a particular cam
Task:
The cam from 300 to 330 on output 2 shall be deleted.
Solution:
1.
Press the
key (for about 2 sec.), you enter the 'Output selection' mode
2.
Press the
key to select output 2,
3.
Press the
key, you enter the 'Cam search' mode
4.
Press the
key, the device searches for the start of the next cam.
5.
Press the
key. The preselection
6.
Press the
key to program the activation point. The display shows
7.
Press the
key and keep it pressed until the display shows
CAUTION!
8.
Press the
.
. The start of the first cam found is displayed.
.
is displayed.
is displayed.
Do not keep the key pressed too long. It is best to keep the
and then adjust to 330 step by step.
.
.
key pressed until 320
key. You return to the standard display.
NOTE:
By shifting the cam activation point to the cam deactivation point the programmed cam is deleted. By
shifting the activation point beyond the deactivation point deletes the range after the cam (e.g. from
330 to 350). All cams programmed in this range are deleted. A new cam will be placed between 330
and 350 when you move the activation point back to the desired position of 330 !
Version from: 04.06.2002
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Digital Cam Switch Unit
CamCon DC33
Digitronic
Automationsanlagen GmbH
6.5. Cam programming in the programming mode "1"
6.5.1. Selecting an output
The cam programming is initiated as follows: Press the
key for about 2 sec., until the display shows
. This indicates that no cam has been programmed on output 1 in the 'Output
e.g.
selection' mode. By pressing the
want to program cams.
key or the
key you can now select the output on which you
6.5.2. Shifting the activation point
By pressing the
key you leave the 'Output selection' mode
point' mode
. A pressing of the
key or the
This is done according to the following system:
A short single pressing of the
and enter the 'Activation
key shifts the activation point by one step.
key will erase the activation point at the previously displayed preset
key
value, e.g. 100, and then the preset value is increased by 1, e.g. to 101. A short pressing of the
will lower the preset value (100 in our example) by 1 and then set a new activation point at e.g. 99.
6.5.3. Shifting the deactivation point
Pressing the
key once more leads you from the 'Activation point' mode
'Deactivation point' mode
. CamCon will first search for the deactivation point of the current
cam (e.g.:
). By pressing the
or the
This is done according to the following system:
A single short pressing of the
into the
key the deactivation point is shifted by one step.
key will set a new switching point at the previously displayed preset
value, e.g. 100. Then the preset value is increased by one, e.g. to 101. A short pressing of the
key
will lower the preset value, e.g. 100, by 1 and then delete the switching point 99. The new deactivation
point is then 99. A further pressing of the
key brings you back to the 'Output selection' mode
.
6.5.4. Leaving cam programming
No matter in which programming mode you are, you can always leave cam programming by pressing
the
key. The standard display appears
Page: 20
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Digitronic
Automationsanlagen GmbH
Digital Cam Switch Unit
CamCon DC33
6.5.5. Examples for cam programming in the programming mode "1"
6.5.5.1. Cam programming
Task:
After a complete deletion of the program memory and a successful initialization of the system, a cam
shall be programmed on output 2 from 100 to 200.
Solution:
1.
Press the
key (for about 2 sec.), you enter the 'Output selection' mode
2.
Press the
key to select output 2,
3.
Press the
key for the programming of the activation point
4.
Press the
key and keep it pressed until
5.
If you released the
or the
6.
.
.
is displayed.
key too early or too late, you can adjust the preselection to 100 with the
key.
Press the
key to program the deactivation point.
7.
Press the
key and keep it pressed until the display shows
8.
If you have released the
with the
9.
Press the
.
or the
.
key too early or too late, you can adjust the deactivation point to 200
key.
key. You return to the standard display.
6.5.5.2. Deletion of cams
Task:
You want to delete the cam 100 to 200 on output 2.
Solution:
1.
Press the
key (for about 2 sec.), you enter the 'Output selection' mode
2.
Press the
key to select output 2,
3.
Press the
key to program the activation point. The display shows
4.
Press the
key and keep it pressed until
5.
If you released the
.
. The start of the found cam is displayed.
.
is displayed.
key too early, shift the deactivation point to 200 by repeatedly pressing the
key. If you released the
key too late, do not correct it ! The cam is then already erased.
Shifting the activation point backwards programs a new cam in consequence. This cam should be
deleted.
6.
Press the
key. You return to the standard display.
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Digital Cam Switch Unit
CamCon DC33
Digitronic
Automationsanlagen GmbH
7. Outline of operations
7.1. Switching the standard display
Speed display (min -1)
Press the
key shortly
Position display
Press the
key shortly
Speed display (min -1)
7.2. Programming of the system constants
Speed display (min -1)
Press the
key shortly
User key for system constants
Press the
key shortly
User key for system constants
Press the
key shortly
User key for system constants
Press the
key shortly
User key for system constants
Press the
key shortly
User key for system constants
Press the
key shortly
User key for system constants
Press the
key shortly
User key for system constants
Press the
key shortly
User key for system constants
Press the
key about 2 sec.
Encoder resolution
Press the
key shortly
Encoder F/R switching
Press the
key shortly
Zero point correction
Press the
key shortly
Press the
key shortly
Cam programming mode
Speed display (min -1)
You return to the standard display.
7.3. Dead time programming
Speed display (min -1)
Press the
key about 2 sec.
Dead time compensation for Output 1
Press the
...
key shortly
Go to Output 2
Press the
key shortly
Speed display (min -1)
You return to the standard display.
7.4. Cam programming
Speed display (min -1)
Press the
key (about 2 sec.)
Selecting an output
Press the
key shortly
Searching for cam activation point (only in mode "0")
Press the
key shortly
Enter position of preselection (only in mode "0")
Press the
key shortly
Shifting the activation point
Press the
key shortly
Searching for and shifting the deactivation point
Press the
key shortly
Selecting an output
Press the
key shortly
Press the
key shortly
Selecting the next output
Speed display (min -1)
You return to the standard display.
Page: 22
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Digitronic
Automationsanlagen GmbH
Digital Cam Switch Unit
CamCon DC33
8. watch doc
The CamCon deactivates all output within 1ms when an error occurs. This behavior can be used as an
extreme error message. Program a cam over the whole range of a chosen output (0 to 360 degrees)
(security cam). This output should be slaved into the emergency deactivation circuit. To be able to
program a security cam over the whole range.
After the security cam has been programmed, the display shows e.g.:
.
9. Troubleshooting
Problem:
The display remains dark after activation.
Solution:
The wiring is probably not correct. Check the wiring.
Problem:
The display shows:
.
Solution:
Either the encoder is connected incorrectly or not at all, or the encoder resolution of the connected
encoder does not coincide with the input encoder resolution. Check the wiring to the encoder or the
input of the encoder resolution. When the error is corrected, press any key to clear the error message
of the display.
Problem:
The display shows:
.
Solution:
Your outputs are overloaded or have short circuited. Check the wiring and the connected power as well
as any inductive loads, that are operated without a free wheel or a deletion unit. An output can supply
up to 500mA of current. When the error is corrected, press any key to clear the error message of the
display.
Caution:
Infavourable cable routing can lead to the deactivation of the outputs, since it
builds up a potential that is redirected into the outputs at the closing of a
contact. With induced loads the outputs have to be switched with a
freewheeling diode. Covers or inductivities very close to the device inside the
switchboard have to be switched with a deletion unit as do those that are wired
to or influence the wiring of the device.
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Digital Cam Switch Unit
CamCon DC33
Digitronic
Automationsanlagen GmbH
10. Technical data of the CamCon
Multifunctional display for programming..............7-segment, 5-digits, 13mm
Number of outputs...............................................8 or 16
State display of the outputs .................................a red LED each
Number of programable cams ............................500
Number of programs ...........................................1
Cycle time, (switching speed)..............................1ms
Dead time compensation (DTC) .........................for each output
Range of the DTC ...............................................0 to 255ms
Exactness of the DTC .........................................+0 to -1 step
Encoder input ......................................................synchronous serial (SSI), gray coded
Encoder type .......................................................AAG60007
Encoder resolution ..............................................360 steps / rotation
Zero point correction ...........................................electronical adjustment inside CamCon
Rotatory direction of the encoder ........................is programmed by CamCon
Length of the connecting cable
between encoder and CamCon ..........................200m
Data security/memory .........................................EEPROM
Supply voltage.....................................................24V DC ±20%
Encoder supply voltage .......................................with 24V DC over supply voltage
of CamCon
Current reception ................................................200mA without encoder and outputs
Output current .....................................................500mA, short circuit proof permanent current
(see 4.3. The outputs)
Output voltage.....................................................24V DC, pluse switching
Connections for:
Encoder ...............................................................through plug block clips
Voltage supply.....................................................through plug block clips
Cam outputs........................................................through plug block clips
Operating temperature ........................................0°C to +55°C
Cover type for:
Front plate / full sight gate...................................IP 67 / IP 55
Cabinet ................................................................IP 40
Dimensions .........................................................see fig. on page 10
Front plate part....................................................138 x 138mm + 1
Cabinet (switch plate cabinet by DIN 43700) ......144 x 144 x 63mm (WxHxD)
Cover of the front plate........................................Full sight gate, can be locked with security key
PC - connection...................................................with PC30 Software package
Weight .................................................................about 600g
Page: 24
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Digitronic
Automationsanlagen GmbH
Digital Cam Switch Unit
CamCon DC33
11. Key word table
Activation point, Shifting................................................................................................................... 15; 19
Cable covers ............................................................................................................................................ 9
Cam programming ..................................................................................................................... 15; 19; 21
Cam programming, Examples ......................................................................................................... 16; 20
Commissioning....................................................................................................................................... 13
Connections, Electrical........................................................................................................................... 10
Deactivation point, Shifting............................................................................................................... 15; 19
Dead time compensation ....................................................................................................................... 14
Dead time programming ........................................................................................................................ 21
Delay time compensation, Effects............................................................................................................ 6
Delay time, Calculation............................................................................................................................. 8
Deletion, Complete................................................................................................................................. 13
Dimensions .............................................................................................................................................. 9
Display of position or speed ................................................................................................................... 12
Encoder .................................................................................................................................................. 11
Encoder resolution ................................................................................................................................. 14
F/R change over..................................................................................................................................... 14
Grounding pins......................................................................................................................................... 9
Initialization............................................................................................................................................. 13
Installation ................................................................................................................................................ 9
Installation procedures ............................................................................................................................. 9
Keyboard ................................................................................................................................................ 12
Leaving cam programming .................................................................................................................... 16
millenium .................................................................................................................................................. 2
Operation, Outline .................................................................................................................................. 21
Operator terminal, Outline...................................................................................................................... 12
Output display ........................................................................................................................................ 12
Output, Selection.............................................................................................................................. 15; 19
Outputs................................................................................................................................................... 11
Pin allocation .......................................................................................................................................... 10
Precautions ............................................................................................................................................ 11
Preset value, Setting .............................................................................................................................. 15
Programming mode, Setting .................................................................................................................. 14
Searching for cams ................................................................................................................................ 15
Standard display, Switching ................................................................................................................... 21
System constants, Programming ........................................................................................................... 21
Table of contents...................................................................................................................................... 3
Technical data........................................................................................................................................ 23
Troubleshooting ..................................................................................................................................... 22
User key ................................................................................................................................................. 13
watch doc ............................................................................................................................................... 22
Y2K........................................................................................................................................................... 2
Zero point correction .............................................................................................................................. 14
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Fax: 03 26 85 19 08, Tel : 03 26 82 49 29
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