JPS59200880A - Digital valve remote controller - Google Patents

Abstract

PURPOSE:To permit highly accurate control of flow amount or pressure by a method wherein the digital valve is operated by the remote control effected by outputting the pulse signal of manual operation. CONSTITUTION:When the digital valve 16 for flow amount control is to be opened, a manual switch 12 is operated by ON operation by the number of operation corresponding to a preset opening degree. According to this operation, CW pulse is outputted to a pulse motor driver 15 pulse by pulse and the pulse motor 17 of the digital valve 16 is driven to rotate into the direction to open a variable choke 18 step by step. When the flow amount is to be choked, the ON operation of the manual switch 13 of the remove control 10 is effected by necessary number of operations, then, the CCW pulse is supplied to the pulse motor driver 15 pulse by pulse and the pulse motor 17 is driven to rotate into the direction of closing the variable choke 18 step by step.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a digital valve controller that remotely and manually controls a digital valve.

In a conventional analog type flow control valve using an electric motor, for example, the angle of the valve is changed by 170 degrees remotely using a remote controller as shown in FIG.

In FIG. 1, reference numeral 1 denotes a repeat controller, which incorporates a power supply 2 and a potentiometer 3, and operates the potentiometer 2 with a signal line connected to a power amplifier 4, which serves as a drive circuit for an analog type flow control valve 5. The flow rate control valve 5 is set so that the opening degree is adjusted to the degree required for driving the electric motor.

However, the remote controller 1 roller, which is intended for such conventional analog flow control valves, has many drifts due to temperature and changes over time, and also has a smaller signal @ voltage than the remote controller 1 roller over long distances. Because it is sent to a power amplifier that is far away from the target, it is easily affected by noise.
IN 3 is to adjust the flow rate for high viscosity! Furthermore, since it is an IF and uses a potentiometer for the remote controller, there is a problem that it has limited mechanical durability and is expensive in terms of losses.

The present invention has been made in view of these conventional problems, and is a method of controlling a flow rate or pressure by remotely operating a so-called digital valve using a pulse motor as a drive source by sending out a pulse signal for manual operation. To provide a digital valve remote controller 1 to 0 that enables highly accurate collapse or pressure control, is resistant to noise, and is also inexpensive in terms of cost.

In order to achieve this object, the present invention provides a first manual switch that outputs a pulse signal to the portable unit 1 to drive the pulse motor driver of the digital valve one step in the rotational direction of time η1. , a second manual switch that outputs a one-step pulse signal counterclockwise to the pulse smoke driver as a switch operation phrase, and a reset switch that outputs a reset signal that restores the digital valve to the fully open position. The valve is built-in, and the digital valve is controlled remotely by connecting a signal line to the pulse motor driver.

Embodiments of the present invention will be described below based on the drawings.

FIG. 2 is a circuit block diagram showing one embodiment of the present invention. First, to explain the configuration, 10 is a remote controller, a first manual switch 12 that generates a CW pulse for clockwise driving the pulse motor of the digital valve, and a pulse motor of the digital valve. It is equipped with a second manual switch 13 that generates a CCW pulse to rotate the motor counterclockwise, and a reset switch 14 that generates a reset pulse to restore the digital valve to the fully open position. 12
-14 uses a pushbutton switch with a non-locking structure, and the switch operation phrase (CW) is used.

Each pulse of the CCW Yotahariket is output as one pulse.Of course, the pulse output by operating the switches 12 to 14 is output as the power supply voltage from the power supply 11. As 10 (J power supply 1
1 and manual switch 12.13 and relay 1-switch 1
Since it has an extremely simple structure consisting of
It is used by connecting the connector to the controller 1 to roll panel.

15 is a pulse motor driver;
] - C to V and Iζ from 10 output pulse: E - evening excitation current in response to the CCW pulse, and for the reset pulse, the pulse motor is forcibly returned to the fully open position of the valve.
Continuously outputs CCVt/pulse.

16 tJ: A digital valve for flow rate control, which has a built-in pulse motor 17 that is rotated in steps by a pulse motor driver 15, and the flow rate is adjusted by changing the opening degree of the variable throttle 18 with the step rotation of the pulse motor 17. ing.

Next, to explain the operation of the embodiment shown in FIG. 2, when remotely controlling the digital valve 16 for inflow control by the remote controller 10-, the signal line of the pulse motor driver 15 is connected to the operation panel. On the other hand, when connecting the remote controller 10 installed as a portable unit with a connector, and listening to the flow control digital valve 1G in the fully open position, for example, the manual switch 12 is turned on a number of times corresponding to the set opening degree. Manual switch 12
is turned on, a CW pulse is output one pulse at a time to the pulse motor driver 15, and the pulse motor 17 of the digital valve 16 for flow rate control is rotationally driven in the direction of opening the variable diaphragm 18 one step at a time. Furthermore, when restricting the flow rate of the flow rate control digital valve 16 at a predetermined opening degree,
When the manual switch 13 of the remote controller 1-port 10 is turned on or turned on as many times as necessary, one CCW pulse is sent to the pulse motor driver 1 for each switch operation.
5, and the pulse motor 17 of the digital valve for flow rate control is rotated one step at a time in the direction of closing the variable throttle 18.

Furthermore, if an emergency stop is required, turn on the reset switch 14 of the remote controller 10, etc.
Pulse motor driver 15J: An excitation pulse (CCW pulse) for closing the variable throttle 18 is continuously output to the pulse motor 17 of the digital valve 16 for controlling the flow rate, and the flow rate is increased by operating the reset switch 14 once. An emergency stop can be performed by operating the control digital valve 16 to the fully open position.

FIG. 3 is a circuit block diagram showing another embodiment of the present invention, and this embodiment is characterized in that the remote controller is provided with means for displaying the opening degree of the digital valve.

That is, the remote controller 10 is provided with an up-down counter 19, and an up-down counter 19 is provided.
The output of a manual switch 12 that generates a CW pulse is connected to the count up terminal CU of the , and the output of a manual switch 13 that generates a CCW pulse is connected to the count up terminal CU of the count up terminal CU. The output of a reset switch 14 that outputs a reset pulse is connected to the CLR, and the count horn of the up/down counter 19 is supplied to a display 20 so that the opening degree of the digital valve 16 for flow rate control can be displayed numerically. . Note that the other configurations are the same as the embodiment shown in FIG.

According to the embodiment of FIG. 3, the remote controller 1
CW generated by operating manual switch 12 or 13 of 0
Pulse or CCW pulse is sent to uptown counter 12
The amount is counted and displayed numerically on the display 20, so operate the manual switch 12 or 13 while looking at the display 20 to adjust the opening of the flow control digital valve 16 to the required opening. Excellent operability can be obtained.

Further, when the reset switch 14 is operated for an emergency stop, the up/down counter 19 is cleared and the display on the display 20 returns to zero.

In addition, in the above embodiment, a digital valve for controlling flow Ih is taken as an example, and Iζ is a pressure having a structure in which a pulse motor is similarly used to change the spring load that determines the relief setting pressure of the relief valve. The present invention can also be applied to digital valves for control.

Next, to explain the present invention in detail, the controller 1 has three controllers that output a power supply, a control pulse in the CWh direction, a control pulse in the CCW direction, and a reset pulse to return the digital valve to the fully open position. Set up a manual switch [
Since the unit configuration is extremely simple and can be made small and light enough to fit in the palm of your hand, the control signal from the controller is a pulse signal, making it easy to use digital valves. Even if the pulse motor driver is far away, it will not be affected by noise, and it will not be affected by temperature or changes over time.

Furthermore, the control amount of the digital valve can be determined by the number of operations of the manual switch installed on the remote controller, and extremely high operability can be achieved by installing a display on the control unit that displays the numerical value of the control pulse. I can read 1.

[Brief explanation of drawings]

Fig. 1 is a circuit block diagram showing an example of a remote controller unit for a conventional analog type flow control valve, Fig. 2 is a circuit block diagram showing an embodiment of the present invention, and Fig. 3 is a circuit block diagram showing an example of the present invention. FIG. 10: Remote controller 1-○-ra 11: Power supply 12: First manual switch 13:
Second manual switch 14: Reset switch 15: Pulse motor driver 16 Digital valve for dual flow rate control 17: Pulse motor 18: Variable throttle 19 Near Tsubu town counter 20: Display Patent applicant Tokyo Keiki Co., Ltd. Agent Patent attorney Takeshi Inner Figure 1 For procedural amendment (voluntary) June 27, 1980 Items 1 Director-General Kazuo Wakasugi 1, Indication of the case 1982 Patent Application No. 75136 2. 8 Draft name Digital dialect mode 1 Hecon [Roller 3, relationship with the old case to be amended Patent applicant address Tokyo person [IJ [Su Minami Kamata 2” J-1116 No. 46 Name (338) Tokyo 51 Ki 4 Co., Ltd., agent address Tokyo] 4F Nishi-Shinbashi Chuo Building, 3-15-8 Nishi-Shinnoki, Miyako-ku (2) Correct the words "visceral organs" in the 8th line of page 2 and the 3rd line of page 4 of the four specifications to read "internal organs" respectively. (3) In the fourth line of page 4 of the specification, ``to do'' is amended to read ``1 to do''. (4) Change "F caused by operation F on page 5, line 3" to "J due to operation." (5) Change "Occurrence i, II" on page 4, line 7 of specification to 1
I am corrected by saying, ``It happens.'' Claims (after amendment): A power source, a first manual switch that outputs a signal instructing the pulse motor dry nozzle of the digital valve to rotate one step clockwise every time the switch is operated, and the driver. A second manual switch outputs a signal commanding one step of rotation in the counterclockwise rotation direction each time the switch is operated, and a ret signal is output to the driver to restore the digital valve to the fully open position. Assemble the switch 1~ to the production/mobile unit 1~, and connect the digital valve remotely [I
A digital valve controller, characterized in that it allows operation A.

Claims (1)

[Claims] a first manual switch that outputs a signal instructing the pulse motor driver of the digital valve to rotate one step in the clockwise direction for each switch operation; A second manual switch outputs a signal instructing the rotation of the digital valve every time the switch is operated, and a second manual switch outputs a reset signal to the driver to restore the digital valve to the fully open position.
l; Built into the unit and installed in the driver of the unit 1~
Remote control of digital valve by signal line connection:
Digital valve remote controller 1 featuring the following features:
Herola.