EP0940554A1 - Roller shutter control device - Google Patents

Abstract

The controller has a memory, a processor (26), a monitor (23,24,29) for the blind (7) and an input device (34-36). The monitor is connected to the processor and detects whether the blind has reached its upper or lower physical end position. The input device has at least two direction buttons for controlling the direction of motion of the roller blind, whereby the program and/or wiring of the arrangement is designed so movement of the blind can be initiated by one of the buttons at any time after installation without requiring a setting up procedure for the motor or controller or interruption of the power supply to the controller.

Description

With the increasing use increasingly complex Controls in themselves will improve the scope of services and also achieved comfort. Of the However, higher comfort is usually achieved with a bought increasingly complicated user interface, which among other things in the number of buttons to be pressed or, which is even more uncomfortable for the user, the increasing Multiple assignment of individual keys is purchased.

It is therefore not uncommon for control systems only because of this become completely inoperable for the user, because after a few years he lost the instruction manual and the symbol explanation on the device does not is sufficiently self-explanatory. Not even a minimal one The scope of services can then be called up more.

This is particularly the case with roller shutter controls considerable disadvantage. Just consider that after several Years of proper operation programming a power outage deletes and the operating instructions in the meantime has been lost.

Roller shutter controls can pose particular problems throw up, as with retrofittable roller shutter drives are used. Such drives are common Drives with the existing tension belt of the roller shutter interact, i.e. Drives that are not in the winding shaft of the roller shutter sit and over in the winding shaft arranged mechanically adjustable limit switch contacts feature. With the previously known solutions for drives, that interact with the roller shutter belt is the user forced to teach control in a complicated way where the allowable, maximum possible physical End positions of the roller shutter curtain are. this happens in a first run of the roller shutter curtain. Without this initialization run is not an operation of the roller shutter possible.

An improvement could be achieved if the Control is designed in such a way that it physical limits for the movement of the roller shutter curtain recognizes.

Another simplification would be that electric drive of the roller shutter curtain at any time To be able to set gear without a special initialization run to have to perform.

An improvement in comfort is also achieved if the User can arbitrarily define an end position.

The object of the present invention is therefore the disadvantages inherent in the state of the art eliminate.

This object is achieved with the devices solved according to claims 1, 10, 11, 25 or 26.

The solution according to the invention allows the housing to provide two direction buttons and also accordingly to label so that a self-explanatory operation for the minimum scope of services.

According to one aspect of the invention, the program is in the control device designed so that at any time With the help of the direction buttons, the drive for the roller shutter belt be set in motion and switched off can. The user does not have to rely on it initially an initialization run after installation or a power failure perform. He is in that way Able to have a minimum scope of services, which he also can use if the operating instructions have been lost or is not at hand.

According to another aspect of the invention Possibility of custom end positions for the roller shutter curtain to enter. This gives the user the Possibility, for example, not the roller shutter curtain to close completely. It can cover an upper area of the Keep the roller shutter curtain stretched, creating a so-called Ventilation position is reached.

The slats of the roller shutter curtain usually face slots in the connecting ribs, some Allow air passage and also light passage as long as the slats do not sit close together. With The user-defined end position can be achieved that these slots remain in the open position, so that both light and air can pass through.

If not just a lower one, but also an upper one End position can be set arbitrarily by the user can also suppress a complete opening be what, for example, for shading in summer makes sense. Leave these user-defined end positions with just one additional button, a set key. There are several Possibilities to choose from. The user-programmed End position can be reached by starting from a middle position, the roller shutter in the relevant Direction is set to that end position in which the user-defined end position is to be set. To do this, the user can first press a set key and then when you reach the desired position pressing any of the buttons again the roller shutter curtain stop, which defines the upper end position. Another conceivable option is the roller shutter curtain as usual to start and to stop the movement by pressing the SET key and a corresponding state in the control to be saved, which is set as the desired end position is. This can, for example, be arbitrary in the Control set meter reading when the control cooperates with a pulse generator, which over the Roller shutter belt is driven. When closing and when Opening the drive is only kept going until the relevant meter reading is reached. It understands yourself that this is not necessarily a discrete Digital counter is used, but that this counter with the help of a microprocessor and one contained therein Program is simulated.

According to a further aspect of the invention, the Control system should be designed so that the control system automatically the top without user intervention and / or lower limit position itself, in which the roller shutter curtain due to the spatial conditions maximum can be moved, searches automatically. This automatic Searching for the limit positions can be triggered by the User by pressing the corresponding direction button the roller shutter curtain in the corresponding direction starts. Another option is to switching on a power supply voltage for the first time the control, which is synonymous with a voltage return after a power cut, the roller shutter curtain automatically performs an initialization run. However, a manually controlled initialization run is prefer to avoid unattended collisions with any Items that are in the area of the roller shutter curtain to avoid, for example, flower pots.

An easy way to get the physical Determining end positions consists of the current consumption to monitor the drive motor. As soon as the power consumption rises above a predetermined limit recognized this as a signal that the roller shutter curtain has reached its upper end position and the stops are usually provided on the roller shutter curtain, on Roller shutter box are in contact. The lower end position is the System signals when the pulses from the pulse generator stay away because the tension belt is fully closed Roller shutter relaxed.

To prevent that in the upper end position constantly the system remains under an increased tension preferably after reaching the upper physical End position of the roller shutter curtain automatically lowered a bit and this condition will be the upper end position in the future defined that no longer run over by the user can be. A counter can also be used for this, which in turn is not necessarily a discrete one Counter is, but in a microprocessor with the help a program is simulated. This counter is on set a predetermined value and it is based on this condition when lowering the roller shutter curtain The counter value continues to count until the counting pulses stay away.

In addition, developments of the invention are the subject of subclaims.

Fig. 1 eine Prinzipdarstellung der erfindungsgemäßen Anordnung und der zur Durchführung der Steuerung wesentlichen Programm- bzw. Schaltungsblöcke und

Fig. 2 - 8 die Flussdiagramme für die Steuerung nach Fig. 1.

In the drawing, an embodiment of the object of the invention is shown. Show it:

Fig. 1 is a schematic diagram of the arrangement according to the invention and the program or circuit blocks essential for performing the control and

FIGS. 2-8 show the flow diagrams for the control according to FIG. 1.

Fig. 1 shows a highly schematic of a roller shutter arrangement with those essential for the understanding of the invention mechanical and electrical assemblies.

The arrangement has a roller shutter 1, which to optionally set a drive device 2 in motion is. The drive device 2 is controlled with Using a control device 3.

A roller shaft 4 belongs to the roller shutter 1 both on pins 5 and 6 in one not illustrated Roller shutter box is rotatably mounted. At the With one edge, winding shaft 4 is a roller shutter curtain 7 attached, that of several parallel to each other Roller shutter slats 8, which is a tongue and groove connection are coupled together. His lower Edge is formed by an end strip 9 on the two stops 11 are rigidly attached. The stops 11 in the form of cylindrical pegs can adhere to the Edge of the slot of the roller shutter box, not shown put on to prevent the roller shutter curtain 7 completely disappears into the roller shutter box. they seem so far together with the slot of the roller shutter box as a mechanical end stop.

In addition to one end of the winding shaft 4 is one Belt pulley 12 arranged with the winding shaft 4th is rotatably connected. On the belt pulley 12 is a Tension belt 13 can be wound up with one end on the belt pulley 12 is set. The belt pulley 12 is as in Roll shutters usual, a flanged disk to a side To prevent the tension belt 13 from running down. The tension belt 13 is in the form of a in its lower end in Fig. 1 dashed line symbolically illustrated.

The drive device 2 with the lower end the tension belt 13 cooperates and is highly schematic also shown rotated by 90 ° around the course of the tension belt 13 to be able to illustrate.

The drive device 2 includes a first one Friction roller 14, which excited over a permanent DC motor 15 driven with reduction gear is, two more friction rollers 16 and 17, which over not shown spur gears with the friction roller 14 rotatably connected and axially parallel to this and one in the wall of the building in question accommodated automatic rewinder 18 with a belt pulley 19, which by means of a symbolically indicated spring 21 in Winding sense of the tension belt 13 is biased.

Between the friction rollers 14, 16 and 17 runs the Tension belt 13, as illustrated, meanders through it, wherein at least one of the rollers is wrapped in an omega shape is.

The lower end of the tension belt 13 is on the disc 19 attached, so with the help of the spring 21, which acts as a spring motor acts, the section of the tension belt 13 between the Friction roller 17 and the winding disc 19 tensioned is held.

The motor 15 and the friction rollers 14, 16 and 17 are together in a circuit board, not shown arranged or stored. In this board is also a sensing roller 22 rotatably supported, namely by one Axis that is related to the axes of the friction rollers 14, 16 and 17 and the winding disk 19 is axially parallel. The tracer roller 22 is arranged such that the tensioned tension belt 13 runs over the circumferential surface and the feeler roller 22 through Can take friction.

With the sensing roller 22, a disc 23 is rotatably coupled, which is sensed by a sensor 24. Of the Sensor 24 can be an optical or a magnetic field sensor be scanning irregularities on the disk 23 and with each pass an unevenness over one Connection line 25 emits an electrical pulse. The The number of pulses delivered is that of the tension belt 13 distance covered proportional.

The core of the control device 3 forms a Microcontroller or microprocessor 26 that has multiple Inputs 27, 28, 29, 31 and 32 as well as a control output 33 has. Instead of the microcontroller 26, a ASIC can be used according to the following explained program configured in hardware or is wired.

Line 25 is connected to input 32, via which 26 pulses are supplied to the microcontroller, as long as the feeler roller 22 rotates, which is synonymous is with a movement of the tension belt 13. In the microcontroller the impulses are continually increased by means of a counter counted and thus provide information about the Position of the roller shutter curtain 7. The counter is an up / down counter, which also takes the sign into account. He counts e.g. forward when the roller shutter curtain 7 moves up, and backwards when the Roller shutter curtain moved down. The maximum count starting from 0 is larger in both directions than the maximum expected number of pulses if the roller shutter curtain 7 goes through its full stroke. On this way there is no overflow when the counter is reset when the roller shutter curtain 7 in one of its physically possible end positions.

At inputs 27, 28 and 29 are via corresponding Lines three pushbuttons 34, 35 and 36 connected, their other contact, like the upward arrow shows connected to the positive supply voltage is. The two pushbutton switches 34 and 35 serve as running direction pushbuttons, while the key switch 36 a set or Programming switch.

The output 33 is connected to a symbolically indicated one Relay switch group 37, through which the electrical connection from a supply voltage 38 to the motor 15 and from the motor 15 via a current sensor resistor 39 to circuit mass 41 can be produced. The relay switches group 37 also serves as a pole reversal switch for the Motor 15, which makes a total of three states possible are, namely, an off state in which the motor 15 gets no electricity and is short-circuited at the entrance, as well as two switch-on states, in which he with the one or the other polarity between the power supply 38 and the circuit ground 41. It goes without saying that the output 33 may be a multi-pole output, around these multiple switching states of the relay switch group 37 to enable.

The entrance 31 is finally with the hot end of the current sensor resistor 39 connected to the voltage drop to measure at the current sensor resistor 39. Of the Voltage drop serves as a criterion for the physical End position of the roller shutter curtain 7. Around the voltage drop the microcontroller contains a voltage discriminator, the voltage drop with an internally definable Threshold compares and depends on that A corresponding binary signal is available for comparison poses. The discriminator can also be outside of the microcontroller be realized.

In the microcontroller or in the one realized in it Memory contains a program, the sequence of which is shown in the following figures.

When the power supply is switched on, the Microprocessor 26 on the design Start address started and initially wraps at 51 Program through which the registers are standardized and determined Memory variables to one required for the program run Initial value. This also includes the Presetting of the internal counter that receives the pulses the entrance 32 counts. The counter is e.g. to "zero" set.

After the processor is reset, the program continues and queries at 52 whether the direction key 34, with the the opening of the roller shutter 1 is arranged, operated is. If so, the program goes straight to the beginning of query block 52 back. This is to prevent be that accidentally immediately after turning on the power supply or a voltage recovery of the Roller shutter 1 is set in motion in one direction. If the direction button 34 is not pressed, comes the program into a second query block 53, in the program checks whether the other direction key 35, with which the closing of the roller shutter 1 is requested is actuated. If so, the program runs for Start of query block 53 and only if none Button is pressed, the program moves to the next one Instruction block 54 continues. The query block 53 has the same Task like query block 52, namely a faulty one or to prevent the roller shutter 1 from being started unintentionally.

If both buttons are not pressed, the Executed instruction block 54 in which several variables, a variable MSA, a variable MSE, a variable MP reset and a short time counter (stopwatch) SZ is loaded. In addition, one can at this point Microprocessor optionally connected display 55 switched off become. This LED 55 signals that User that the control device 3 in the sense of Programmable definition of a user-defined end position is.

The variables MSA and MSE are used after an actuation of the set button 36 to recognize their release and only start the "stopwatch" from this point on. In this respect, the variables serve to be negative Flank triggering to realize how this results from the following description results.

After the instruction block 54 is passed through executed a query block 56 in which the program checks, whether the direction button 34 is pressed. If so, will a subroutine 57 started, which opens the roller shutter 1 causes. If button 34 is not pressed, the program continues with a query block 59 in which button 35 is checked. If it's pressed, if the user wishes the roller shutter 1 to be closed, which is why the program at 58 into the corresponding subroutine changes. If there is no actuation, it closes a query block 61 adjoins the query block 59, in which it is checked whether the variable MSE is set. If not, the program checks at 62 whether the user presses the set key 36 keeps pressed. If this is also not the case, the situation reverses Program back to the input of query block 56. Is on the other hand, the key 36 in the actuated state becomes on Instruction block 63 executed. In this instruction block 63 the variables MSE and MP are set and also LED 55 is turned on. Then returns the program back to the input of query block 56.

For the next run it is assumed that the Variable MSE is actually set, which means the program at query block 61 to the entrance of a query block 64 branches, in which it is checked whether the Variable MSA is set. If so, it is done in one Query block 65 the check whether the set key 36 in the actuated state. If not, that's a sign making sure that the user released the set key 36 with which the stopwatch formed by the variable SZ closes starts so that the programming of an end position only for a predetermined time is possible to prevent incorrect operation to exclude. This time is determined by the duration of the stopwatch defined by the variables SZ, which consequently decrements in an instruction block 66 is indicated by the LED 55.

If the variable SZ has not yet returned to zero what has checked in a query block 67 has decreased the program returns to the beginning of the query block 56 back. If, however, the variable SZ is down to zero has been decremented, the "stopwatch" has expired and it is not programming the end position using the direction keys 34, 35 more possible until the again Set key 36 is pressed. The direction buttons 34, 35 then only serve to move the roller shutter 1 up or start below, which corresponds to normal operation. The program therefore returns in the event that SZ goes to zero to the input of instruction block 52 The set time has expired and may have to be new be started.

In the event that the test in the query block 64 has shown that the variable MSA is not set, there is a further query as to whether the set key 36 is still is in the actuated state. This review is done in a query block 68. Does the user have the set key 36 released, i.e. it is in the open state Switch, is then in the instruction block 69 the variable MSA is set before the program at the output of instruction block 69 to the input of the query block 56 returns.

However, the user holds the set key 36 as pressed before, the instruction block 69 is skipped. With the help of blocks 56 to 69 it is achieved that a programming described below from arbitrary to defining end positions is only possible from the time after the user releases the set key 36. With when the set key 36 is released, a time begins to run within which he can program the end position must have started by pressing either the direction button 34 for setting an upper end position or the Direction key 35 for defining a lower desired Must have actuated the end position. After this expires Time is a change or attitude of the chosen one End positions are no longer possible until you press them again the set key 36. The direction keys 34, 35 then, as already mentioned, only serve the roller shutter 1 start up or down what the Corresponds to normal operation.

As can be seen in FIG. 2, the user can be independent from the actuation of the set key 36 drive commands with Use the direction buttons 34 or 35 to instruct and have it carried out.

Has the user pressed the direction button 34 and the processor detects this in query block 56 branches the program in the subroutine to open the Roller shutter 1, as shown in Fig. 3. In this Program section is first checked whether the current Position corresponds to the upper end position. this happens by comparing the counter contents of the above Pulse counter with a stored value corresponding to the counter content corresponds to the respective end position; it deals the variables explained below "upper limit" or "maximum end position up". This counter receives its counting pulses via input 32 from the pulse generator, through the encoder disk 23 and the sensor 24 is formed. This pulse generator delivers pulses as long as how the tension belt 13 moves, the number of Impulse of the distance is proportional to that of the tension belt 13 travels.

The test is carried out in a query block 71. If the the subroutine is reached leave immediately to the entrance of the request block 52. If the upper end position has not yet been reached, an instruction block 73 ensures that over the output 33 to the relay switch set 37 signals so that the motor 15 for the corresponding Direction of rotation connected to the supply voltage 38 becomes. Then in an instruction block 74 Waiting loop started before the program from there a query block 75 continues.

In query block 75 it is checked whether the current through the sensor resistor 39, i.e. the voltage drop via the sensor resistor 39 above or below a predetermined limit value.

Exceeding the limit occurs when the a corresponding torque demanded from the motor Limit exceeded. This is usually the case Case when the stops 11 on the slot of the roller shutter box come to the plant, which in turn with the maximum possible upper end position of the roller shutter 1 equate is. To this extent, the current sensor resistor 39 serves together with the discriminator implemented in the microcontroller 26 as a detection device for the upper physically possible end position.

As the engine may start when starting draws higher current than that previously set Threshold lies, the check takes place in the query block 75 not immediately after the instruction block 73, but delayed by the instruction block 74.

If the upper end position is reached, what by If the limit value is displayed, branches the program for the subroutine "final shutdown above". If no, the threshold is for the maximum allowed Voltage drop across sensor resistor 39 not reached, and it checks the program in a query block 77 whether an auxiliary variable MAUF is set.

The variable MAUF serves as a flip-flop and is intended for this ensure that the roller shutter 1 continues to open even if the user has the relevant direction key 34 has already let go. To do this will achieve, in the present flowchart Variable MAUF after releasing the direction button 34 set and reset by pressing it again. As a result, the first time through the 3 the variable MAUF is not set and after query block 77 the program runs with a further query block 78, in which the state of the Direction key 34 is checked. She is no longer in the actuated state, after the query block 78 in the instruction block 79 the variable MAUF otherwise, the instruction block 79 skipped.

Then, in a query block 81 examines whether the current position is greater than one previously defined upper position. If not, it drives Program continues with query block 75, otherwise changes switch off the program to a subroutine 81 " above".

Because the loop pass relatively quickly takes place and this program section according to FIG. 3 only is jumped to, if at least briefly the direction button 34 is pressed, is initially during the the variable MAUF remains reset after the first runs, which is why the run takes place as described above. At one of the loop passes, the user becomes the direction key Release 34 so that at query block 78 the condition is fulfilled and the variable MAUF in the instruction block 79 is set. With that the next Runs in the query block 77, the condition must be met and continue the program in the future via a query block 83, in which it is checked whether in the meantime again the direction button 34 is pressed. If not, the program changes to the input of query block 81, if so, this is understood as an order, the movement to stop the roller shutter curtain. Accordingly drives the program continues through an instruction block 84 in which reset the variable MAUF for the next run becomes. After execution of instruction block 84, this is possible Program in the subroutine "switch off above".

The "Shutdown Up" program is shown in FIG.

The first function in the program part 82 "switch off above "is done in one Instruction block 85, through which a signal is output 33 is generated so that the relay switch block 37 the Power supply to the motor 15 is interrupted. After that it is checked in a query block 86 whether the Variable MP is set. This variable MP was possibly set in instruction block 63 (FIG. 2) if the user had pressed the set key 36.

By pressing the set key 36, the user shows the control device 3 wishes that the by pressing the direction button beforehand 34 reached top end position as future will upper end position is used, which from now on when opening the Roller shutter curtain 7 is no longer run over. So if the variable MP is set, the program changes to an instruction block 87.

In this instruction block 87, the variable "upper Limit "is set on the counter content and also the variable MP is deleted. Then the program returns back to the beginning of instruction block 52 and waits for the next command entry by pressing one of the buttons 34 to 36. During the waiting process always the main branch via query blocks 56, 59 and 62 run through.

In the event that the MP variable was not set, the program also closes after query block 86 the input of instruction block 52 and waits as mentioned above. If the variable MP is not set, instruction block 87 is not executed.

In connection with the explanation of FIG. 3 already described that the roller shutter control 3 detects when the roller shutter curtain 7 its upper physical End position reached. This detection takes place in the Query block 75, wherein if the condition is met, in the program part 76 "upper limit switch" is changed. This part of the program is shown schematically in FIG. 5. Also in the program part 76 "final shutdown" the engine is first switched off in an instruction block 88.

Since in this state the roller shutter curtain 7 under there is considerable tension because the attached to it Stops 11 abut the roller shutter box in a further step, the tension was reduced, in an instruction block 89 via the output 33 electrical signal sent to the relay switch group 37 , which ensures that the motor 15 in the reverse Direction in the sense of lowering the roller shutter curtain 7 is set in motion. This lowering movement is either time-controlled or it is over the counter controlled and stopped once the counter reached a predetermined one Number of steps, based on the meter reading, counted down where the condition in the Query block 75 was reached, i.e. exceeded the current limit was. Then in an instruction block 91 the Engine switched off.

Then the variable "maximum end position above "in an instruction block 92 with the current counter reading occupied. This variable "maximum end position up" will, as already mentioned, in the query block 81 evaluated, so that from then until the next deletion all variables, for example due to a power failure, the program section 76 "upper limit switch-off" no longer is achieved.

Obviously the program does not need an absolute one upper limit, but the control device 3 seeks the upper limit position itself, the counter content reflects the position, but not on one certain position of the roller shutter curtain 7 at the beginning of Program run is fixed. The system works as it were with a "floating zero point" and looks for the upper end position itself. This upper end position is then with equated to a counter content that is in random Results from the initial conditions, but then remains the same until the system Blackout has lost his memory.

After leaving instruction block 92, this returns Program returns to the beginning of instruction block 52.

Fig. 6 shows the program part 58 "Close roller shutter". It starts by checking in a query block 93 whether the content of the counter has become smaller than the content of a variable "lower limit". This variable corresponds to the "upper limit" variable, only with the difference that this is the chosen lower end position. The way in which this variable being won is discussed further below explained.

When the chosen lower end position is reached, the machine returns the program immediately to the input of the instruction block 52 back. Otherwise the engine is in an instruction block 94 in the sense of lowering the roller shutter curtain 7 switched on via output 33.

The physically possible lower limit is determined by Absence of pulses from the sensing roller 22 detected. For this it is necessary to include a short-term clock in the program, with their help a retriggerable monoflop is simulated, which is reset every time by the sensor 24 receives a pulse. These impulses remain off, the monoflop is no longer reset and thus recognized that the roller shutter curtain 7 is completely lowered or otherwise stands up with its bottom edge at the bottom.

In order to realize this monoflop, the following to the instruction block 94 in an instruction block 95 Variable "clock" loaded in each described below Loop pass is decremented. Since the Time required for loop through is known expired a certain time when the variable "clock" is counted down to zero. In addition, in the instruction block 95 the current meter reading is buffered.

There is also one in the "Close roller shutter" program Variable that corresponds functionally to the variable MAUF, a continuous run until it is activated again to reach a button. This variable becomes a distinction MAB called and is at the start of the program section not set. It is in a query block 96 checked, which follows the instruction block 95. Because the variable MAB is not set, the Query block 96 of the query block 97 executed in which the Button 35 is queried. Not in the meantime actuated more is set in an instruction block 98 MAB or, if the user continues to press button 35 instruction block 98 is skipped.

In any case, at the output of instruction block 98 checked in a query block 99 whether the counter reading equal to the content of the variable "minimum end position below" or the variable has become "lower limit". If so, this is the sign that the roller shutter curtain 7 cannot or should not be lowered any further. Accordingly the program changes here to a part of the program 100 "Shut Down Below".

If the lower end position is not reached, in a query block 101 decrements the variable "clock" and checked if it went back to zero. If if not, the program goes to the entrance of query block 96 back. Otherwise, i.e. when expired O'clock, is examined in a query block 102, whether the counter content differs from the counter content, which is cached in the instruction block 95 was. In case of a difference between these two Values are still impulses from the feeler roller 22 came. On the other hand, if the contents are the same, the tactile role is 22 has stopped because of the tension belt 13 has lifted off the feeler roller 22. The roller shutter curtain 7 stands up, which is why with a program part 103 "Limit switch down" is continued. Were on the other hand, when the impulses have arrived, the lowering movement can to be continued, which is why the program for those arriving Pulses after query block 102 to the beginning of instruction block 95 returns, in which the clock is new is set and the meter reading is cached again becomes.

After a few loop passes, the variable MAB can be set with the result that after the query block 95 is no longer continued with query block 96, but is branched to a query block 104. In this query block 104 becomes the state of the direction key 35 checked. If it is pressed again, the Roller shutter curtain 7 are stopped. Is the button 35 on the other hand, if the roller shutter curtain is not actuated, 7 continues and the program changes to Receipt of query block 99. Otherwise, i.e. when actuated Direction key 35 is in an instruction block 105 reset the variable MAB and the program towards program part 100 "switch off below" leave.

The program part 100 "shutdown below", as in Fig. 7 is shown corresponds to the program part "Switch off at the top" according to FIG. 4.

The program part 100 "shutdown below" begins with the fact that in a subsequent instruction block 106 the Engine is switched off. This is followed by a Instruction block 107 checks whether the user has an arbitrary wanted to program the lower end position, then what Program based on the state of the MP variable, as already mentioned above, checks. If the variable MP is not set the program goes straight to the entrance of the Instruction blocks 52 return. Otherwise, in one Instruction block 108 a variable "lower limit" with the Value of the current counter content occupied and the variable MP deleted.

For future movements of the roller shutter curtain 7 in the sense of lowering, the roller shutter curtain 7 is always stopped at a point where the counter reading is the same this stored variable is "lower limit".

Finally, there is the case that the roller shutter curtain 7 at the bottom of the window boundary exposes what is in the query block 102 according to FIG. 6 was found. In this case the program branches the program part 103 as shown in FIG. 8. This Program part 103 largely corresponds to the program part 5, i.e. it is first in a statement block 109 causes the engine to turn off.

Since it can be assumed that the counter by Recognizing the standstill is an empirically determined one Number of pulses "loses", a variable becomes "minimal" End position down "on the content of the meter reading minus a correction value.

The loss of pulses arises because the tension belt 13 stands out from the feeler roller 22 but still a bit runs before the system stops the sensing roller 22 recognizes. The correction value for this is determined empirically and ensures that when the roller shutter is opened 1 again the same upper physical position of the roller shutter curtain 7 is reached when the content of the counter has become equal to the variable "maximum end position up" or, in the case of a user-defined end position, the same as "Upper limit" variables.

This correction and storage takes place in the Instruction block 110 and then in an instruction block 111 the counter to the value corresponding to the Variables "minimum end position down" set before the Beginning of instruction block 52 is returned.

In contrast to the current limit, which is at the top the lower end position can only be reached once Closing the roller shutter 1 to be approached continuously.

If this is not desired, can be done by appropriate Programming the variable "minimum end position below "to the current meter reading and the motor 15 is moved in the upward direction until the first impulse arrives. This can be done in the same way be determined how this is related to the query block 101 has already been explained. Then the Variable "minimum end position below" to the value of the current one Meter reading set.

For reasons of standardization, it may be advisable in the lower end position the state with relaxed To pull the tension belt 13. So that no error accumulates, an additional variable MPU is introduced, which is used for the first time the voltage state of the Tension belt 13 is set. In this case it works Program as follows:

After the engine stops in instruction block 109 in the following block of instructions 112 checks whether a variable MPU is set. If you is not set, this is a sign for the first Impact of the roller shutter curtain 7 on a lower obstacle and it becomes the counter reading as described above read, corrected and under the variable "minimal End position below "is saved. In addition, in the instruction block 110 the MPU variable is set.

The next time through this operating state consequently the variable MPU is set, which is why Program branches directly to instruction block 111. In As mentioned, this program block 111 receives the counter reading corrected by setting the internal counter to the value which the variable "minimum end position below" has.

From the user's perspective, the operation of the Roller shutter control 3 according to the invention as follows:

Immediately after installing and switching on the roller shutter curtain 7 provides the power supply no movement. The roller shutter curtain 7 can only by active user intervention set in motion become, for example in the sense of opening, when to Time of voltage recovery of the roller shutter curtain 7 was closed. To do this, the user presses the direction button 34 "UP" and the roller shutter curtain 7 will start moving upwards until the stops 11 on Roller shutter boxes come to the system. Then the Control an appropriate correction so that the mechanical stop will no longer be reached in the future. Sometime later the user wants to close the roller shutter 1, which is instructed by the direction button 35 "AB" pressed. The roller shutter 1 will move downward until he is with his Bottom edge stands up on any stops and itself the tension belt 13 relaxes. When opening again Pressing the direction button 34 moves the roller shutter curtain 7 in the previously determined upper end position, in the just not yet the stops 11 on the roller shutter box nudge.

Regardless of this carried out on the first trip The user can arbitrarily adjust at any time program intermediate end positions, by first pressing the set key 36 and then within of the available time window what is indicated by the lighting of the LED 55, the Roller shutter 1 using the direction button 34 or 35 either moves up or down and through Stop pressing the same button again. This then the position reached is the end position, which will be the roller shutter curtain in the future 7 will take if either the direction button "UP" or the direction button "DOWN" pressed without the user pressing the button again the same button stops the movement.

This way you can be arbitrary regardless of the physical limits are defined. Thereby the user can prevent that in the roller shutter curtain 7 usually included light and ventilation slots over the entire length of the roller shutter curtain 7 be completely closed. On the other hand, he can Select an intermediate position, for example in summer to get some sun protection.

With the program described, these can be arbitrary set limits are not exceeded. Is a If you want to run over, you must re-program what happens simply because the power supply is temporarily interrupted. At the The microprocessor starts when the power supply returns automatically with the instruction block 51, in which also matching these variables for the chosen limit high values are set that are larger than those Values due to physical restrictions can be achieved to the maximum.

If this is not desired, the query block can 81 in addition to querying the variable "upper Limit "can still be checked whether the variable MP is set is what corresponds to a new setting of the limit. The Program can be designed so that when the variable MP is set by pressing the set key 36, the value the "upper limit" variable is ignored.

In the control described, a Return of voltage or after the initial installation of the Roller shutter curtain 7 does not automatically move in automatically Set movement. In any case, is an action by the user required, which then the movements check and if necessary the roller shutter curtain 7 can stop in time before there is any damage is coming.

Here, for example, in order to avoid panic Stopping to facilitate the operation of each of the buttons be used to stop the movement. For example, in FIG. 3 after the query block 83 additional query blocks are added, in which additional the other direction button 35 and the set button 36 can be queried upon actuation.

If it should be desired, however, immediately after the physical limits of the movement of the roller shutter curtain 7, it is sufficient if the program sections from the instruction block 51 76, 102 "Limit switch at the top" or "Limit switch at the bottom" start automatically.

A roller shutter arrangement includes one over one Pull belt operated roller shutter curtain as well as an electric one Drive device for the tension belt and a control for the drive motor. The control device monitors the motor current to the upper physically possible Recognize the end position of the roller shutter curtain and also there is a traction roller, which is frictionally engaged the pull belt is carried and impulses to the control device delivers. The engine is switched off if either the motor current is a predetermined one Limit exceeds or the tracer roller no impulses delivers more. In addition, arbitrarily through the User end positions for the open and closed positions be set. The control works to determine the position with a counter and is designed so that the Counter, depending on a random initial value, at Starting the arrangement works.

Claims (30)

Device for controlling a roller shutter (1) with a roller shutter curtain (7) that can be wound up on a roller shutter shaft (4), the roller shutter shaft (4) of which via a roller shutter belt (13) by means of a roller shutter belt (13) acting electric motor (15), which is controlled via a control device (3), which has at least: a storage device, a processor device (26), a monitoring device (23, 24, 39) for the roller shutter curtain (7), which is connected to the processor device (26) and serves to determine whether the roller shutter curtain (7) has its upper or lower physically possible end position reached, and an input device (34, 35, 36) which contains at least two running direction keys (34, 35) for controlling the direction of movement of the roller shutter (1), the program and / or the wiring of the device being designed in this way, that a movement of the roller shutter curtain (7) must be initialized at any time using one of the direction buttons (34, 35) without the electric motor (15) or the control device (3) being installed or the power supply for the control device (3 ) an adjustment run is required. Device according to claim 1, characterized in that a user-defined upper end position for the roller shutter curtain (7) can be entered into the control device (3) is between the upper physical limit and the lower physical end position. Device according to claim 1, characterized in that a user-defined lower end position for the roller shutter curtain (7) can be entered into the control device (3) is between the upper physical limit and the lower physical end position. Device according to claim 1, with at least one Set key (36) for controlling a memory function, thereby marked that to enter the top custom First the roller shutter curtain (7) in an end position Position that is lower than the intended one user-defined upper end position, then the set key (36) is pressed, then the direction button (34), through which the roller shutter curtain (7) moves upwards is to be set and when reaching the intended upper user-defined end position either the same direction key (34) or the other direction button (35) or the set key (36) is pressed, and that thereby in the storage device is stored in a state which corresponds to the upper user-defined end position. Device according to claim 1, with at least one Set key (36) for controlling a memory function, thereby marked that to enter the lower custom First the roller shutter curtain (7) in an end position Position that is higher than the intended user-defined lower end position, then the set key (36) is pressed, then the direction button (35), through which the roller shutter curtain (7) moves downwards is to be set and when reaching the intended lower user-defined end position either the same direction key (35) or the other direction button (34) or the set key (36), and that thereby in the memory device a state is saved that the corresponds to the lower user-defined end position. Device according to claim 4 or 5, characterized in that that to capture one or both custom End positions of the processor device (26) resettable up / down counter and the Monitoring device (24, 25, 39) a pulse generator (23,24). Device according to claim 4 or 5, characterized in that that the saved state for the top User-defined end position with a predefined counter reading preferably corresponds to the counter reading "zero" that at Closing the roller shutter curtain (7) the counter device is counted in one direction when opening the roller shutter curtain (7) the counter in the other Direction is counted until the top custom The corresponding counter reading has been reached again and that at this point the electric motor (15) over the control device (3) is switched off. Device according to claim 4 or 5, characterized in that that the lower physical end position one Counter reading corresponds to that starting from the top user-defined end position or the upper physical End position reached when closing the roller shutter curtain (7) becomes. Device according to claim 1, characterized in that the movement of the roller shutter curtain (7) stops when either the upper physically possible end position of the roller shutter curtain (7) is reached or an upper limit position is reached, which is lower than the upper physically possible end position, or the lower physically possible end position of the roller shutter curtain has been reached or the upper user-defined end position has been reached or the lower user-defined end position has been reached or the movement direction button (34, 35) triggering the movement is pressed again or the other direction button (34, 35) is pressed, which did not trigger the movement. Device for controlling a roller shutter with a roller shutter curtain (7) that can be wound up on a roller shutter shaft (4), the roller shutter shaft (4) of which via a roller shutter belt (13) by means of a roller shutter belt (13) acting electric motor (15), which is controlled by a control device (3), which has at least: a storage device, a processor device (26), a monitoring device (23, 24, 39) for the roller shutter curtain (13) which is connected to the processor device (26) and which serves to determine whether the roller shutter curtain (7) has its upper or lower physically possible end position reached, and an input device (34, 35, 36) which contains at least two running direction keys (34, 35) for controlling the direction of movement of the roller shutter (1), the program and / or the wiring of the device being designed in this way, that by actuating the running direction button (34, 35) corresponding to the opening of the roller shutter curtain (7), the electric motor (15) is set in motion in the sense of opening the roller shutter curtain (7), that the electric motor (15) is stopped as soon as the monitoring device (23, 24, 39) determines the maximum physically possible end position, and that a state corresponding to the respective physical end position is then stored in the storage device. Device for controlling a roller shutter (1) with a roller shutter curtain (7) that can be wound up on a roller shutter shaft (4), the roller shutter shaft (4) of which via a roller shutter belt (13) by means of a roller shutter belt (13) acting electric motor (15) is driven, which is controlled via a control device (3), which has at least: a storage device, a processor device (26), a monitoring device (23, 24, 39) for the roller shutter curtain (7), which is connected to the processor device (26) and serves to determine whether the roller shutter curtain (7) has its upper or lower physically possible end position reached, and an input device (34, 35, 36) which contains at least two running direction keys (34, 35) for controlling the direction of movement of the roller shutter (1), the program and / or the wiring of the device being designed in this way, that when the power supply for the device is switched on for the first time, the electric motor (15) is set in motion in the sense of opening or closing the roller shutter curtain (7), that the electric motor (15) is stopped as soon as the monitoring device (23, 24, 39) determines the maximum physically possible end position, and that a state corresponding to the respective physical end position is then stored in the storage device. Device according to claim 10 or 11, characterized in that that to capture the top physically possible Limit position, the monitoring device (39) Motor current monitoring device (39) having the Compares motor current with a limit value. Device according to claim 12, characterized in that the comparison is only made after the Motor current was switched on for a predetermined time. Device according to claim 10 or 11, characterized in that that of the top physically possible End position corresponding state corresponds to a meter reading. Device according to claim 10 or 11, characterized in that that after reaching the top physically possible end position of the roller shutter curtain (7) a predetermined Piece is moved in the closing direction and that a this position of the roller shutter curtain (7) corresponding State is saved as the upper limit. Device according to claim 10 or 11, characterized in that that a user defined upper end position for the roller shutter curtain (7) into the control device (3) can be entered between the upper physical End position and the lower physical end position. Device according to claim 10 or 11, characterized in that that a user defined lower end position for the roller shutter curtain (7) into the control device (3) can be entered between the upper physical End position and the lower physical end position. Apparatus according to claim 10 or 11, with at least a set key (36) for controlling a memory function, characterized in that to enter the top custom End position first the roller shutter curtain (7) is brought into a position lower than that intended custom upper end position, then the Set key (36) is pressed, then the direction key (34) through which the roller shutter curtain (7) goes up into Movement is to be set and when the intended upper user-defined end position either the same Direction key (34) or the other direction key (35) or the set key (36) is pressed, and that thereby a state is stored in the storage device which corresponds to the upper user-defined end position. Apparatus according to claim 10 or 11, with at least a set key (36) for controlling a memory function, characterized in that for entering the lower user-defined end position first the roller shutter curtain (7) is placed in a position higher than the intended custom lower end position, then the set key (36) is pressed, then the direction key (35) through which the roller shutter curtain (7) goes down is to be set in motion and when the intended lower custom end position either the same Direction key (35) or the other direction key (34) or the set key (36), and that thereby a state is stored in the storage device, which corresponds to the lower user-defined end position. Device according to claim 18 or 19, characterized in that that to capture one or both custom End positions the processor device (26) resettable up / down counter and the Monitoring device (23,24,39) a pulse generator having. Device according to claim 18, characterized in that the saved state for the top custom End position a predetermined counter reading preferably the counter reading "zero" corresponds to that when the Roller shutter curtain (7) the counting device in one direction it is counted that when the roller shutter curtain is opened the counter is counted in the other direction, until the one corresponding to the upper user-defined end position Meter reading is reached again, and that at this Place the electric motor (15) on the control device (3) is switched off. Device according to claim 10 or 11, characterized in that that the monitoring device (23,24,39) for Recognize the lower physically possible end position Has pulse generator (23,24) with the roller shutter belt (13) cooperates and which is designed such that the Roller shutter belt (13) from the pulse generator (23, 24) except Intervention comes as soon as the roller shutter curtain (7) is unwound and the roller shutter belt (13) is free of forces. Device according to claim 10 or 11, characterized in that that the lower physical end position one Counter reading corresponds to that starting from the top user-defined end position or the upper physical End position reached when closing the roller shutter curtain (7) becomes. Apparatus according to claim 10 or 11, characterized in that the movement stops the movement of the roller shutter curtain (7) when either the upper physically possible end position of the roller shutter curtain (7) is reached or an upper limit position is reached, which is lower than the upper physically possible end position, or the lower physically possible end position of the roller shutter curtain (7) is reached or the upper user-defined end position has been reached or the lower user-defined end position has been reached or the movement direction button (34, 35) triggering the movement is pressed again or the other direction button (34, 35) is pressed, which did not trigger the movement. Device for controlling a roller shutter (1) with a roller shutter curtain (7) that can be wound up on a roller shutter shaft (4), the roller shutter shaft (4) of which via a roller shutter belt (13) by means of a roller shutter belt (13) acting electric motor (15) is driven, which is controlled via a control device (3), which has at least: a storage device, a processor device (26), a monitoring device (23, 24, 39) for the roller shutter curtain (7), which is connected to the processor device (26) and serves to determine whether the roller shutter curtain (7) has its upper or lower physically possible end position reached, and an input device which contains at least two running direction keys for controlling the direction of movement of the roller shutter and at least one set key for controlling a memory function, the program and / or the wiring of the device being designed in this way, that to enter the upper user-defined end position, the roller shutter curtain is first brought into a position that is lower than the intended user-defined upper end position that the set key is then pressed, that the direction button, which is used to move the roller shutter curtain (7) upwards, that when the intended upper user-defined end position is reached, either the same direction key or the other direction key (34, 35) or the (36) set key is pressed, and in that a state is stored in the storage device which corresponds to the upper user-defined end position. Device for controlling a roller shutter (1) with a roller shutter curtain (7) that can be wound up on a roller shutter shaft (4), the roller shutter shaft (4) of which via a roller shutter belt (13) by means of a roller shutter belt (7) acting electric motor (15), which is controlled via a control device (3), which has at least: a storage device, a processor device (26), a monitoring device (23, 24, 39) for the roller shutter curtain (7), which is connected to the processor device (26) and serves to determine whether the roller shutter curtain (7) has its upper or lower physically possible end position reached, and an input device (34, 35, 36) which contains at least two running direction keys (34, 35) for controlling the direction of movement of the roller shutter (1) and at least one set key (36) for controlling a memory function, the program and / or the Wiring the device is designed such that to enter the lower user-defined end position, the roller shutter curtain (7) is first brought into a position that is higher than the intended user-defined upper end position, that the set key (36) is then pressed, that the direction button (34, 35), by means of which the roller shutter curtain (7) is to be moved downwards, that when the intended lower user-defined end position is reached, either the same direction key (34, 35) or the other direction key (34, 35) or the set key (36) is pressed, and in that a state is stored in the storage device which corresponds to the lower user-defined end position. Device according to claim 25 or 26, characterized in that that to capture one or both custom End positions the processor device (26) resettable up / down counter and the Monitoring device (23,24,39) a pulse generator having. Device according to claim 25 or 26, characterized in that that the saved state for the top User-defined end position with a predefined counter reading preferably corresponds to the counter reading "zero" that at Closing the roller shutter curtain in one Direction is counted when opening the roller shutter curtain the counter is counted in the other direction, until the one corresponding to the upper user-defined end position Meter reading is reached again, and that at this Place the electric motor (15) on the control device (3) is switched off. Device according to claim 25 or 26, characterized in that that the lower physical end position one Counter reading corresponds to that starting from the top user-defined end position or the upper physical End position reached when closing the roller shutter curtain (7) becomes. Apparatus according to claim 25 or 26, characterized in that the movement stops the movement of the roller shutter curtain (7) if either an upper physically possible end position of the roller shutter curtain (7) is reached or an upper limit position is reached, which is lower than the upper physically possible end position, or a lower physically possible end position of the roller shutter curtain (7) is reached or the upper user-defined end position has been reached or the lower user-defined end position has been reached or the movement direction button (34, 35) triggering the movement is pressed again or the other direction button (34, 35) is pressed, which did not trigger the movement.

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