JPS62296082A - Control/monitor unit of motor driving type automatic switch machinery - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention Industrial Application Field The present invention is a control device for motor-driven automatic opening/closing equipment such as electric shutters and electric blinds that open and close by operating a motor. It is related to.

Conventional technology Conventionally, automatic opening and closing equipment that uses a motor to open and close
The electrical circuit configuration is as shown in the figure.

In FIG. 2, 1 is an automatic opening/closing device body, 2 is a control monitoring device, and these automatic opening/closing device body 1 and the control monitoring device 2 constitute an automatic opening/closing device 3.

4 is a single-phase, two-winding type motor, which performs forward and reverse operation depending on the function of a capacitor 6 inserted between the windings and which winding of the motor is applied with commercial power 7 using a mechanical lock type operation switch 6. . 8 is a first limit switch whose contact opens to stop the motor 4 when the motor 4 completes a predetermined forward (reverse) rotation operation (for example, when the electric shutter is completely opened). Reference numeral 9 denotes a second riminotosinch consisting of a single-pole double-throw type contact, and when the motor 4 completes a predetermined reverse (forward) rotation operation (for example, when the electric shutter is completely closed), its common terminal 9
2L is connected to a second contact 9G apart from the first contact 9b to stop the motor 4, and a voltage is applied to the monitoring unit 10 inserted between the second contact 9C and one end of the commercial power supply 7, so that the light emitting diode (hereinafter referred to as LED) 11 is turned on. FIG. 2 shows a state in which the electric shutter is completely closed and the LED is lit.

Problems to be Solved by the Invention In the above conventional motor-driven automatic opening/closing device 3 (hereinafter referred to as the device), when the operation switch 6 is closed and the device body 1 completes the closing operation, the L HD 11 lights up. but,
In this state, when the operation switch 6 is operated to stop, the monitoring unit 1 is closed even though the main body 1 is completely closed.
Since no voltage was applied to 0, LEDll was turned off, resulting in an incorrect display. Furthermore, when the monitoring unit 1o is installed at a location away from the operation switch 6, although it is possible to check whether the device body 1 is completely closed, it is difficult to know how the device body 1 is to be operated by the operation switch 6. It also has the problem that it cannot be monitored.

SUMMARY OF THE INVENTION Therefore, the present invention provides a control and monitoring device that can monitor the state of a motor-driven automatic opening/closing device and also monitor how the device is being operated.

Means for Solving the Problems In order to solve the above-mentioned conventional problems, the present invention drives the opening/closing device body fully open, closes, and stops according to the opening/closing and stop signals, and when the opening input signal is received, the opening signal is activated. of,
The device is configured to output a close signal when an open input signal is received, and a status signal when a stop signal is received.

Effect of the Invention With the above-described configuration, the present invention can accurately monitor the state of the device body even when it is stopped, and can monitor how the device body is to be operated.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

In Fig. 1, 21 is a motor-driven automatic opening/closing device, which in this embodiment is an electric shutter. A capacitor 23 is connected between the terminals of the first winding 22& and the second winding a22b, and the other end of each is connected to one end 242L of the commercial power supply 24 as a common end. It is connected. When the commercial power supply 24 is connected to the first winding 22&, the first winding 2
2a is the main winding, and the second winding 22b is the capacitor 23.
Since it is connected to the commercial power supply 24 via the motor 22, it functions as an auxiliary winding, and the motor 22 rotates in the normal direction to move the shutter in the direction of opening.

On the other hand, when the commercial power supply 24 is connected to the second winding 22b,
This time, the second winding 22b becomes the main winding and the first winding 22& becomes the auxiliary winding, so the motor 22 performs a reverse operation and moves the shutter in the closing direction.

26.26 is the first and second winding 22aL of the motor 22,
A first limit switch (hereinafter referred to as the first LS) consisting of a single-pole, single-throw type contact connected in series to each of 22b and 22b.
and a second limit switch (hereinafter referred to as 2nd LS), when the motor 22 completes a predetermined normal rotation operation and the shutter changes from an opening operation to a completely open state (fully open), the first limit switch (hereinafter referred to as 2nd LS)
The contact of the LS25 is opened to cut off the current and stop the normal rotation of the motor 22, so that the shutter will no longer open. In addition, the motor 22 completes a predetermined reverse operation and the shutter changes from a closing operation to a completely closed state (
fully closed), the contact of the second LS26 opens and the motor 22
The reverse rotation of the shutter is stopped, and the shutter is prevented from closing any further.

That is, the contacts of the first LS25 open only when the shutter is fully open, and the contacts of the second LS26 open only when the shutter is fully open.

27 is the third limit switch (
Hereinafter, it will be referred to as the 3rd LS. ), its contact closes only when the shutter is fully closed, contrary to the operation of the second L S26.

28 opens, closes, and stops the device main body 21 in response to each input signal to open, close, and stop, and detects the open/closed state of the shutter as the state input to the third LS27i;
Each of the input signals and signals.

This is a control and monitoring device that outputs signals depending on the open/closed status of the switch. 29 is a first relay consisting of a first relay coil 30 and a single-pole double-throw switching contact 31; 32 is a second relay consisting of a second relay coil 33 and a normally closed stop contact 34;
The normally open contact 311L of the switching contact 31 of the first relay 29 is connected to the first LS25 of the device main body 21, and the normally closed contact 31b);
j In the second LS26, the same common terminal 310 is connected to the second relay 32.
One end of the stop contact 34 and the other end of the stop contact 34 are connected to the other end 24b of the commercial power source 24, respectively.

35 is a microcomputer (hereinafter referred to as microcomputer)
When it receives each input signal of open, close, and stop, it outputs an open or close signal and sends a command to the relay drive circuit 36, and the relay drive circuit 36 stops driving the first relay 29 and the second relay 32. Do the following.

When the open input signal is input to the microcomputer 35, the open signal is output to the first output terminal 35aL of the microcomputer 36, and the relay drive circuit 36 drives both the first and second relays 29, 32'i according to the command from the microcomputer 35. , the common terminal 3 of the switching contact 31 is activated by energizing the first relay coil 30.
1C is connected to the normally open contact 31a, and the stop contact 34 is closed by energizing the second relay coil 33.

Next, when the stop input signal is input to the microcomputer 35, the driving of only the second relay 32 is stopped and the stop contact 34 is opened.

When the closing force signal is input, the closing signal is output to the second output terminal 35b of the microcomputer 36, the driving of the first relay 29 is stopped, and the common terminal 310 of the switching contact 31 is connected to the normally closed contact 31b. At the same time, the second relay 32 is driven and the stop contact 34 is closed. In addition, in Figure 1, the closing force signal is input, the shutter is lowered, the shutter is fully closed, and the second
It shows a state in which L 326 is open and third LS 27 is closed.

37 is a state detection circuit that detects the open/closed state of the shutter;
It is composed of first and second resistors 38 and 39 connected in series, and one end of the first resistor 38 is connected to one end of the third LS 27 of the device main body 21 as an input terminal of the state detection circuit 37, and also, The other end of the third LS 27 is connected to VaC, which is the ten poles of the DC power supply 4o. On the other hand, the first resistor 3
The connection point between the other end of 8 and one end of the second resistor 39 is connected to the state detection input terminal 35 of the microcomputer 35 as the output of the state detection circuit 37.
It is input to 0. Further, the other end of the second resistor 39 is connected to GND.

Now, when the device main body 21 is in a fully closed state, the contact of 13Ls27 is closed, so VCC is applied to the state detection circuit 37, and this constant voltage is applied to the first. The voltage rHJ divided by the second resistor 38 and 39 is applied to the state detection input terminal 35 of the microcomputer 35.
It is input to 0. On the other hand, when the main body 21 of the device is not in a fully closed state, the contact of the third LS 27 is open, and the state detection circuit 37 is disconnected from VCC.
It becomes "L" with the same potential as III.

However, when the stop input signal is input to the microcomputer 36, the driving of the second relay 32 is stopped and the stop contact 34 is opened as described above, and the first output terminal is output based on the voltage of the state detection input terminal 350 of the microcomputer 35. 35a or second output end 35b
A signal is output to either. That is, when the voltage at the state detection input terminal 350 is "H", a close signal is output to the second output terminal 36b, and when the voltage is r L J, an open signal is output to the first output terminal 35&. That is, when the stop input signal is input to the microcomputer 35 when the device main body 21 is in the fully closed state, the close signal is output to the second output terminal 35.
On the other hand, when the stop input signal is input while the main body 21 is in a fully closed state, an open signal is output to the first output terminal 35&.

Reference numeral 41 is an operation display unit that sends open, close, and stop input signals to the control and monitoring device 28, and also receives signal output from the control and monitoring device 28 and displays the status. 42 is an operation circuit, which includes an open switch 43, a close switch 44, and a stop switch 4.
6, one ends of these switches 43 to 45 are both connected to VCC, which is a 4° DC power source, and the other ends are input to the microcomputer 35, respectively. That is, the open switch 43 receives an open input signal, the close switch 44 receives a closing force signal, and the stop switch receives a stop input signal from the microcomputer 35.
are sent to each.

Reference numeral 46 denotes a status display circuit, which displays an open LED (hereinafter referred to as LED) 47, a closed LED (hereinafter referred to as LED) 48, and a first and second transistor 49.50. It consists of an up resistor 61, and the pace of the first and second transistors 49,50 is the first and second output terminal 352L of the microcomputer 35,
35b, and when the open signal is output to the first output terminal 35a, the first transistor 49 is turned on.
When the open LED 47 lights up, on the other hand, when the close signal is output to the second output terminal 35b, the second transistor 50 turns on.
Then, the close LKD48 lights up.

Next, the operation of the configuration of this embodiment will be explained.

First, consider closing the shutter from a state where the shutter is completely open and stopped.

Since the shutter is completely open, the contacts of the first LS25 and the third LS27 in the device main body 21 are both open, and the contacts of the second LS26 are closed.

When the close switch 44 is pressed to close the shutter, an open input signal is input to the microcomputer 36, which drives the second relay 32 and closes the stop contact 34. Since the first relay 29 is not driven, the common terminal 310 of its switching contact 31 is normally closed contact 3
1b. Therefore, the second winding 22 of the motor 22
A commercial power source 24 is applied to b, and the motor 22 performs a reverse operation to move the shutter in the closing (downward) direction. Furthermore, when the open input signal is input to the microcomputer 36, a close signal is output to the second output terminal 36b of the microcomputer 36, and the close LED 4B in the operation display unit 41 lights up. Also,
Since the open signal is not output to the first output terminal 36B, the open LM
D48 is off.

Next, when the stop switch 45 is pressed during the lowering operation of the shutter, a stop input signal is input to the microcomputer 35, the drive of the second relay 32 is stopped, the stop contact 34 is opened, and the shutter is stopped midway. At this time, since the contact of the third LS27 is open, the voltage at the status detection input terminal 35C of the microcomputer 36 is in the Ill state, and when the stop input signal is input, the microcomputer 35 outputs a close signal to its second output terminal 35b. Since it stops and outputs an open signal to the first output terminal 35&, the closed LKD4B that was lit up to now goes out and changes to open L.
ED47 lights up.

Next, when the close switch 44 is pressed again, the shutter moves down in the same manner as described above, but when the close switch 44 is pressed again, the shutter opens L! eD47 goes out and close LED again
48 lights up. After a while, when the shutter completely closes (fully closed state), the contact of the second LS26 opens and the motor 2
At the same time, the contact of the third LS 27 is closed, and the state detection input terminal 35c of the microcomputer 35 becomes "H".

In this state, when the stop switch 45 is pressed, the second relay 32
is stopped and the stop contact 34 is opened, and the microcomputer 35 outputs a status signal to the first output terminal 351L or the second output terminal 35b, but since the voltage at the status detection input terminal 350 is rHJ, the second The output of the close signal to the output end 35b is maintained, and the close LED 4B continues to light up.

Next, when the open switch 43 is pressed, the open input signal is transmitted to the microcomputer 3.
6, the first and second relays 29 and 32 are driven together, and the common terminal 31 of the switching contact 31 of the first relay 29
0 is connected to the normally open contact 312L, and the stop contact 34 of the second relay 32 is closed, so the commercial power supply 24 is applied to the first winding 22& of the motor 22, and the motor 22 rotates normally. Move the Yasota in the direction of opening (upward). In addition, when the open input signal is input to the microcomputer 36, the open signal is output to the first output terminal 351L, so that the open LE
When D47 lights up, the output of the close signal to the second output terminal 35b stops, so the close LKD48 goes out.

After a while, when the stop switch 45 is pressed, the opening drive of the motor 22 is stopped and the shirring is stopped midway, but at this time, the third LS 27 is open, so the voltage at the status detection input terminal 35C of the microcomputer 35 is rLJ, open LED4
7 remains lit.

As described above, when the open input signal is input to the control monitoring device 28, the open LKD 47 lights up, and when the close input signal is input, the close LED 4B lights up.

Also, when the stop input signal is input, the close LRD 48 lights up if the shutter is in the fully closed state, and the open LED 47 lights up if the shutter is not in the fully closed state, so it is unclear how the shutter is to be opened and closed. In addition to monitoring the state of the shutter, it is also possible to monitor whether the shutter is fully closed when the shutter is stopped. This is particularly effective when the device main body 21 and the status display circuit 46 are installed at locations apart from each other.

Effects of the Invention As is clear from the above explanation, according to the present invention, an open signal is output when an open input signal is received, a close signal is output when an open input signal is received, and a stop input signal is output when a stop input signal is received. The operating state and status of the motor-driven automatic opening/closing device can be monitored by a control and monitoring device that outputs a status signal of the device.

[Brief explanation of drawings]

Fig. 1 is an electric circuit diagram of an electric Nyatta device using the control and monitoring device for motor-driven automatic opening/closing equipment according to an embodiment of the present invention, and Fig. 2 is an electric circuit diagram showing a conventional motor-driven automatic opening/closing equipment. It is. 21...Electric shutter body (equipment body), 22
...Motor, 28...Control and monitoring device. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
figure

Claims (1)

[Claims] The main body of a motor-driven automatic opening/closing device that performs opening/closing operations is driven to open, driven to close, and stopped in response to each input signal for opening, closing, and stopping, and when receiving the open input signal, it outputs an open signal and a close input signal. A control and monitoring device for motor-driven automatic opening/closing equipment, which outputs a close signal when receiving a stop input signal, and outputs a status signal from a status detection means for detecting the opening/closing state of a main body of the equipment when receiving a stop input signal.