JP6029566B2 - Electro-pneumatic regulator - Google Patents

Description

  The present invention relates to an electropneumatic regulator that continuously controls an output pressure to a set control pressure.

  The electropneumatic regulator continuously adjusts the output pressure of the fluid output from the output port to the set control pressure. The electro-pneumatic regulator is a device that controls the discharge amount of the dispenser by pressure, a device that controls the pressure of the squeegee of the solder printer and the brush pressure of the scrubber, and the pressure of parts such as the bonder and mounter. Used for various devices such as devices controlled by The electropneumatic regulator is provided with functions for supporting various devices and maintaining pressure control accuracy.

  For example, the electro-pneumatic regulator of the first conventional example is provided with a 7-segment LED liquid crystal display at the upper front of the case, and three sets of the set key, SHIFT key, and selection key are pressed below the 7-segment LED liquid crystal display. An operation key of the type is provided. In such an electropneumatic regulator, after selecting a function using a shift key and a selection key, various settings such as a set control pressure are performed using the shift key and the selection key, and thereafter, the set content is determined using a set key (see, for example, Patent Document 1).

  Further, for example, the electro-pneumatic regulator of the second conventional example is not provided with a digital display unit, and two variable resistors are provided in the upper part of the front surface. This electropneumatic regulator displays various settings such as the set control pressure by displaying the output pressure on an external device that is communicably connected to the electropneumatic regulator and turning the variable resistor with a screwdriver while viewing the display on the external device. Done.

Japanese Patent Laying-Open No. 2006-155058 (see, for example, paragraphs 0013 and 0024 to 0031, FIG. 1 and FIG. 6)

  However, in recent years, the electropneumatic regulator has been reduced in size, and the electropneumatic regulator of the first conventional example has a narrow interval between the three operation keys, which makes it difficult to operate. Moreover, although the electropneumatic regulator of the first conventional example can provide detailed information to the user by the 7-segment LED liquid crystal display unit, the cost has been increased.

  On the other hand, the electro-pneumatic regulator of the second conventional example is less expensive than that of the first conventional example because it does not have a digital display unit, but various settings must be made by turning a variable resistor with a driver. there were.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide an inexpensive electropneumatic regulator whose operation and function are easy to set.

One embodiment of the present invention has the following configuration.
(1) In an electropneumatic regulator that adjusts the output pressure to a set control pressure in a stepless manner, first and second push-down operation keys, first and second display lamps capable of emitting light in two colors , and the first The display pattern of the first and second display lamps is controlled by the emission color, the length of the blinking cycle, and the presence / absence of continuous lighting according to the operation content of the second operation key, and the electropneumatic is controlled by the combination of the display patterns. Control means for notifying the operating state of the regulator.

Here, the operation contents include pressing, non-pressing, and pressing time of the first and second operation keys, and the pressing and pressing order of one or both.
The operation state includes a normal operation, an initial setting operation, a pressure adjustment operation, and a function setting operation. The functions set by the function setting operation include various functions such as zero point and span point adjustment and response time selection.

( 2 ) In the configuration described in (1 ) , preferably, the storage unit stores a response time setting pattern having different response times, and the control unit is selected by the first and second operation keys. The display pattern of the first and second display lamps is changed according to the response time setting pattern, and the response time is changed according to the determined response time setting pattern.

(3) In the configuration described in (1) or ( 2) , preferably, the pressure detection value detected by the pressure detection means is connected to a pressure detection means for detecting the output pressure and an external device having a display function. and a connector to be transmitted to the external device, wherein the operating state, the while watching the pressure detection value which has been displayed on the external device, the zero point is set by operating the first or the second operation key or Span point adjustment.

( 4 ) In the configuration described in any one of (1) to ( 3 ), preferably, the first and second operation keys and the first and second display lamps are provided on an upper surface.

  Since the electropneumatic regulator has two operation keys, the first operation key and the second operation key, the interval between the first operation key and the second operation key is wide. Therefore, the user can easily press the first and second operation keys with a finger, and can easily set operations and functions. In the electropneumatic regulator, the control means controls the display patterns of the first and second display lamps according to the operation contents of the first and second operation keys, and the electropneumatic regulator has a combination of the display patterns. Since the operation is notified, it is possible to notify the user of the complicated operation state of the electropneumatic regulator by using an inexpensive display lamp display pattern. Therefore, according to the electropneumatic regulator, operations and functions can be easily set, and the cost can be reduced.

  The electropneumatic regulator uses first and second display lamps that can emit light in two colors, which are cheaper than 7-segment LEDs. The display patterns of the first and second display lamps are changed depending on the emission color, the length of the blinking cycle, and the presence or absence of continuous lighting, and a number of operation states are notified by combining these display patterns. Therefore, according to the electropneumatic regulator, it is possible to display a large number of operating states in a distinguishable manner using only the inexpensive first and second display lamps.

  The electropneumatic regulator stores a response time setting pattern with different response times in the storage means. Since the control means changes the display pattern of the first and second display lamps in accordance with the response time setting pattern selected by the first and second operation keys, the user can change the display pattern of the first and second display lamps. It is possible to recognize which response time setting pattern is selected. Since the electropneumatic regulator changes the response time according to the determined response time setting pattern, the response time can be arbitrarily set according to an external factor. Therefore, according to the electropneumatic regulator, the output pressure can be accurately adjusted to the set control pressure.

  The electro-pneumatic regulator transmits the pressure detection value detected by the pressure detection means to the external device via the connector, and causes the external device to display the pressure detection value. The user can change the zero point or the span point by operating the first and second operation keys while observing the pressure detection value displayed on the external device. Therefore, according to the electropneumatic regulator, the adjustment accuracy of the output pressure can be maintained by correcting the zero point or the span point even if it deteriorates over time.

  Further, since the electropneumatic regulator is provided with the first and second operation keys and the first and second display lamps on the upper surface, the first and second display lamps even when assembled in a highly integrated device. It is easy to operate the first and second operation keys while confirming the display pattern.

It is a top view of the electropneumatic regulator which concerns on embodiment of this invention. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is explanatory drawing of key operation and display operation | movement of the electropneumatic regulator shown in FIG.

  Embodiments of an electropneumatic regulator according to the present invention will be described below with reference to the drawings. FIG. 1 is a top view of an electropneumatic regulator 1 according to an embodiment of the present invention. 2 is a cross-sectional view taken along the line AA in FIG. FIG. 3 is a BB cross-sectional view of FIG. FIG. 4 is an explanatory diagram of key operations and display operations of the electropneumatic regulator 1 shown in FIG. Below, after describing the external configuration of the electropneumatic regulator 1, the internal configuration of the electropneumatic regulator 1 will be described, and then the operational effects of the electropneumatic regulator 1 will be described.

  As shown in FIGS. 1 to 3, the electropneumatic regulator 1 includes a rectangular parallelepiped case 2. As shown in FIG. 1, the upper surface of the case 2 is connected to an external device (a personal computer, a pressure display device, etc.) having a display function, and a connector 3 for transmitting and receiving a power supply voltage, an input signal, and an output signal, and a push-down type First and second operation keys 4 and 5 and first and second display lamps 6 and 7 that can be lit in a plurality of display patterns are provided. In this embodiment, the 1st and 2nd display lamps 6 and 7 are each comprised by 2 color LED which light-emits green and red.

  2 and 3, the case 2 has a primary port 11 (see FIG. 2), a secondary port 12 (see FIG. 2), and an exhaust port 13 (see FIG. 3) open on the side. ing. As shown in FIGS. 2 and 3, the case 2 includes a booster that controls the pressure of the fluid supplied to the primary side port 11 by switching the communication state of the primary side port 11, the secondary side port 12, and the exhaust port 13. 14 is built in.

  The booster 14 includes an air supply side valve portion 15 that controls the communication state between the primary side port 11 and the secondary side port 12, and an exhaust side valve portion 16 that controls the communication state between the primary side port 11 and the exhaust port 13. In the air supply side valve portion 15, the valve body 17 is always urged toward the valve seat 19 by the compression spring 18. On the other hand, in the exhaust side valve portion 16, the valve body 20 is always urged toward the valve seat 22 by the compression spring 21. The drive shaft 23 is connected to a diaphragm 26 that hermetically partitions the pilot chamber 24 and the feedback chamber 25. The diaphragm 26 is displaced by the differential pressure between the pilot chamber 24 and the feedback chamber 25 and moves the drive shaft 23 up and down.

  The drive shaft 23 is slidably passed through the valve body 20, and when the diagram 26 is displaced downward, the lower end pushes down the valve body 17 against the compression spring 18. In this case, the primary side port 11 and the secondary side port 12 communicate with each other, the fluid supplied to the primary side port 11 flows into the secondary side port 12, and the output pressure rises. On the other hand, when the diaphragm 26 is displaced upward, the drive shaft 23 pulls up the valve body 20 against the compression spring 21 via the restriction plate 27. In this case, the primary side port 11 and the exhaust port 13 communicate with each other, and a part of the fluid flowing to the secondary side port 12 is exhausted to reduce the output pressure.

  As shown in FIG. 2, the feedback chamber 25 communicates with the secondary port 12 through the passage 28 and is set to the same pressure as the output pressure. The secondary port 12 also communicates with a pressure sensor (an example of pressure detection means) 29 through a passage (not shown).

  The pilot pressure in the pilot chamber 24 is controlled by a pilot pressure control circuit 30. In the pilot pressure control circuit 30, the air supply side solenoid valve 31 and the exhaust side solenoid valve 32 communicate with the pilot chamber 24. When the air supply side solenoid valve 31 is opened, the pilot pressure rises, and the exhaust side solenoid valve When the valve 32 is opened, the pilot pressure decreases.

  The operation of the electropneumatic regulator 1 is controlled by a control means 33 comprising a known microcomputer. The control means 33 of this embodiment includes a memory (an example of a storage means) that stores response time setting patterns with different response times. The control means 33 can be electrically controlled to the connector 3, the first and second operation keys 4, 5, the first and second display lamps 6, 7, the pressure sensor 29, the supply side solenoid valve 31, and the exhaust side solenoid valve 32. It is connected to the.

  Such an electropneumatic regulator 1 is assembled to a device by connecting piping to the primary side port 11, the secondary side port 12 and the exhaust port 13, and connecting an external device to the connector 3.

  Next, the function and effect of the regulator 1 will be described with reference to FIG. The control means 33 controls the first and second display lamps 6, 7 according to the emission color of the first and second display lamps 6, 7 and the lighting method (whether continuous lighting, flashing, flashing cycle length). Turn on multiple display patterns. And the control means 33 controls the display pattern of the 1st and 2nd display lamps 6 and 7 according to the operation content of the 1st and 2nd operation keys 4 and 5, and the 1st and 2nd display lamps 6 and 7 are used. The operation state of the electropneumatic regulator 1 is notified by the combination of the display patterns.

  Here, in FIG. 4, the first and second display lamps 6, 7 that are lit in green are hatched, and the first and second display lamps 6, 7 that are lit in red are indicated by being filled. In FIG. 4, the first and second display lamps 6 and 7 are blinking by the radial lines described around the first and second display lamps 6 and 7. In the present embodiment, there are two types, a first blinking pattern that blinks quickly in a short cycle and a second blinking pattern that blinks slowly in a long cycle. In the drawing, the first lighting pattern is represented by six radial lines. The second blinking pattern is represented by four radial lines. On the other hand, the first and second display lamps 6 and 7 having no radial line indicate that they are lit in a continuous lighting pattern that is continuously lit. Further, in FIG. 4, the first and second operation keys 4 and 5 which are outlined are normal button pressing operations, and the first and second operation keys 4 and 5 which are filled in black are normal button pressing operations. A long press operation that is pressed for a longer time is indicated, and first and second operation keys 4 and 5 indicated by dotted lines indicate that the press is released.

  The electropneumatic regulator 1 performs a normal operation (S2) or an initial setting operation (S3) after turning on the power (step 1 (hereinafter referred to as “S1”). The normal operation includes a pressure adjusting operation (S4), The function setting operation (S5) includes a zero point adjustment function (S6) setting operation, a span point adjustment function (S7) setting operation, and a response time selection function (S5). The setting operation of S8) is included.

  When the power is turned on in S1, the electropneumatic regulator 1 is activated when the control means 33 is applied with a power supply voltage via the connector 3. The control means 33 performs normal operation in S2. In normal operation, the control means 33 causes the first and second display lamps 6 and 7 to light up with a green continuous lighting pattern. Thereby, it can be determined that the electropneumatic regulator 1 is activated.

  In the case of initial setting at the time of factory shipment or after assembling the apparatus (S3), the first and second operation keys 4 and 5 are simultaneously pressed for a long time. In this case, the control means 33 lights the first and second display lamps 6 and 7 with a red second blinking pattern to notify that the initial setting operation is being performed. When the initial setting time (for example, 5 seconds) elapses while the first and second operation keys 4 and 5 are pressed, the control means 33 lights the red continuous lighting pattern on the first and second display lamps 6 and 7. To notify that the initial setting is complete. When the pressing of the first and second operation keys 4 and 5 is released after the initial set time has elapsed, the control means 33 returns to S2 and performs a normal operation. On the other hand, if the pressing of the first and second operation keys 4 and 5 is released before the initial setting time elapses, the control means 33 does not perform the initial setting. In this case, the control means 33 returns to S2 and performs a normal operation without causing the first and second display lamps 33 to light the red continuous lighting pattern. Therefore, the user can determine whether the electropneumatic regulator 1 is operating normally or performing an initial setting operation depending on whether the first and second display lamps 6 and 7 are lit in green or red. Further, whether the initial setting is completed can be determined depending on whether the first and second display lamps 6 and 7 are lit in the continuous lighting pattern or the second blinking pattern.

  On the other hand, when the electropneumatic regulator 1 is to perform a pressure adjusting operation (S4), an input signal is input to the connector 3. Then, the control means 33 controls the operation of the supply side solenoid valve 31 and the exhaust side solenoid valve 32 so that the pressure detection value of the pressure sensor 29 matches the set control pressure. Thereby, the fluid supplied to the primary side port 11 is controlled by the booster 14 to the set control pressure, and is output from the secondary side port 12. Here, the set control pressure may be input from the external device to the control means 33 via the connector 3, or may be stored in the control means 33. At the time of this pressure adjustment, if the control means 33 determines that the output pressure is outside the pressure adjustment range with respect to the input signal, the control means 33 causes the first display lamp 6 to turn on the green continuous lighting pattern, while the second The display lamp 7 is turned on with a red continuous lighting pattern to notify that there is an abnormality in pressure regulation. On the other hand, when the control means 33 determines that the output pressure is within the pressure adjustment range with respect to the input signal, the control means 33 causes the first and second display lamps 6 and 7 to light up with a green continuous lighting pattern, thereby adjusting the output pressure. Notify that pressure is working normally. Therefore, the user can determine whether or not the pressure adjustment is normally performed from the combination of the emission colors of the first and second display lamps 6 and 7 that are continuously lit.

  By the way, the electropneumatic regulator 1 has a function for maintaining pressure control accuracy. When only the first operation key 4 is pressed for a long time after the normal operation in S2, the control means 33 enters the function setting operation shown in S5. In this embodiment, the electropneumatic regulator 1 has a zero point adjustment function (S6) setting operation, a span point adjustment function (S7) setting operation, and a response time selection function (S8) setting operation. When the control means 33 keeps pressing the first operation key 4 and presses the second operation key 5, the set function is changed to the zero point adjustment function, the span point adjustment function, and the response time selection function. Move sequentially. The function to be set is selected when the first operation key 4 is released. When the setting of the zero point adjustment function is selected (S6), the control means 33 causes the first display lamp 6 to turn on the red continuous lighting pattern and the second display lamp 7 to turn on the green second flashing pattern. Let Further, when the setting of the span point adjustment function is selected (S7), the control means 33 causes the first display lamp 6 to illuminate with a red continuous lighting pattern, and causes the second display lamp 7 to emit a red second flashing pattern. Turn on the light. Further, when the setting of the response time selection function is selected (S8), the control means 33 causes the first display lamp 6 to turn on the red second blinking pattern and causes the second display lamp 7 to turn on the green continuous lighting pattern. Turn on the light. Therefore, the user selects whether the zero point adjustment function setting, the span point adjustment function setting, or the response time selection function setting is selected depending on the combination of the display patterns of the first and second display lamps 6 and 7. Can be determined.

  The control means 33 moves the zero point when the first and second operation keys 4 and 5 are pressed in the state where the setting of the zero point adjustment function is selected (S6). Here, the zero point means the lowest controllable pressure value. When the setting of the span point adjustment function is selected (S7), when the first and second operation keys 4 and 5 are pressed, the span point is moved. Here, the span point means the upper limit value of the controllable pressure. When the first and second operation keys 4 and 5 are simultaneously pressed for a long time, the control means 33 ends the function setting operation in S5 and returns to the normal operation in S2.

  Further, the control means 33 sequentially selects the response time setting pattern as the first or second operation key 4 or 5 is pressed in the state where the setting of the response time selection function is selected (S8). Here, the response time refers to the time from when the input signal is input until the output pressure reaches the set control pressure. Here, “reaching” means that the output pressure falls within the allowable range of the set control pressure (for example, within ± 5%). In the present embodiment, the control means 33 includes a first response time setting pattern that is set to the first response time, a second response time setting pattern that is set to a second response time that is longer than the first response time, and a second response time. A third response time setting pattern for setting a longer third response time is stored. When the first or second operation key 4 or 5 is pressed, the control means 33 sequentially selects the first to third response time setting patterns.

  When the first response time setting pattern is selected, the control means 33 causes the first display lamp 6 to turn on the red second blinking pattern, and the second display lamp 7 to turn on the green continuous lighting pattern. Let In addition, when the second response time setting pattern is selected, the control unit 33 causes the first display lamp 6 to turn on the red second blinking pattern and causes the second display lamp 7 to perform the first green blinking. Turn on the pattern. Further, when the third response time setting pattern is selected, the control means 33 causes the first display lamp 6 to turn on the red second flashing pattern and causes the second display lamp 7 to flash the green second flashing pattern. Turn on the pattern. Therefore, the user can determine that the response time selection function is selected by illuminating the first display lamp 6 with the red second blinking pattern, and what color the second display lamp 7 is. It can be determined which of the first to third response time setting patterns is selected depending on whether it is flashing or continuously lit.

When the first and second operation keys 4 and 5 are simultaneously pressed for a long time, the control means 33 ends the response time selection function setting operation in S8 and returns to the normal operation in S2.
When the first operation key 4 is kept pressed until a timeout time (for example, 15 sec) elapses, that is, when a function set within the timeout time is not selected, the control means 33 performs the function setting operation ( End S5) and return to normal operation.

  Since the electropneumatic regulator 1 has two operation keys, the first and second operation keys 4 and 5, the interval between the first and second operation keys 4 and 5 is wider than when three operation keys are provided. Therefore, the user can easily press the first and second operation keys 4 and 5 with a finger, and can easily perform operation setting and function setting. In the electropneumatic regulator 1, the control means 33 controls the display patterns of the first and second display lamps 6 and 7 according to the operation contents of the first and second operation keys 4 and 5, Since the operation of the electropneumatic regulator 1 is notified by a combination of patterns, the complicated operation state of the electropneumatic regulator 1 can be notified to the user by the display patterns of the first and second display lamps 6 and 7 which are cheaper than the 7-segment LED. Is possible. Therefore, according to the electropneumatic regulator 1, the operation and function can be easily set and can be made inexpensive.

  In particular, the electropneumatic regulator 1 uses the display patterns of the first and second display lamps 6 and 7 for red and green emission colors, the length of the flashing cycle of the first flashing pattern and the second flashing pattern, and the continuous lighting pattern. The normal operation setting (S2), the initial setting operation (S3), the pressure adjustment operation (S4), the function setting operation (S5), and the zero point adjustment function (S6) are set by changing the presence and absence and combining these display patterns. The operation, the setting operation of the span point adjustment function (S7), and the setting operation of the response time selection function (S8) are notified. Therefore, according to the electropneumatic regulator 1, a large number of operating states can be displayed in a distinguishable manner only by the inexpensive first and second display lamps 6 and 7.

  Incidentally, the response time varies depending on external factors such as operating characteristics of fluid devices such as a fluid control valve attached before and after the electropneumatic regulator, fluid characteristics (viscosity, etc.), and a flow rate flowing through the electropneumatic regulator. Therefore, it is desirable to set the response time according to external factors. For example, when the overshoot tends to be large due to an external factor, it is preferable to suppress the overshoot by setting a long response time. Conversely, when the overshoot tends to be small, the response time is shortened. It is preferable to reduce the cycle time by setting.

  In such a case, the electropneumatic regulator 1 stores the first to third response time setting patterns having different response times in the memory of the control means 33, and the control means 33 uses the first and second operation keys. Since the display patterns of the first and second display lamps 6 and 7 are changed according to the response time setting pattern selected by 4 and 5, the user can change the display pattern of the first and second display lamps 6 and 7 from the first display pattern. It can be recognized which one of the third response time setting patterns is selected. And since the electropneumatic regulator 1 changes a response time according to the response time setting pattern set with the 1st and 2nd operation keys 4 and 5, it can set a response time arbitrarily according to an external factor. Therefore, according to the electropneumatic regulator 1, the output pressure can be accurately adjusted to the set control pressure.

  Here, since the electropneumatic regulator 1 adjusts the pressure of the fluid supplied to the primary side port 11 steplessly, for example, the diaphragm 26 and the valve bodies 17 and 20 are deteriorated, or the valve seats 19 and 22 are deformed. To do. When the electropneumatic regulator 1 deteriorates over time in this way, an error occurs in the valve openings of the supply side valve portion 15 and the exhaust side valve portion 16 with respect to the input signal, and the output pressure may be outside the adjustable range. is there.

  On the other hand, although the electropneumatic regulator 1 cannot directly display the pressure detection value detected by the pressure detection means by the 7-segment LED or the like, the pressure detection value is transmitted to the external device via the connector, and the pressure detection value is transmitted to the external device. Can be displayed. The user selects the setting operation of the zero point adjustment function (S6) with the set control pressure set to zero, and then presses the first and second operation keys 4 and 5 while looking at the pressure detection value displayed on the external device. If operated, the zero point can be changed. Further, the user selects the setting operation of the span point adjustment function (S7) in the state where the set control pressure is the maximum control pressure, and then first and second operation keys while viewing the pressure detection value displayed on the external device. By operating 4 and 5, the span point can be changed. Therefore, according to the electropneumatic regulator 1, even if it deteriorates over time, the adjustment accuracy of the output pressure can be maintained by correcting the zero point or the span point.

  Further, since the electropneumatic regulator 1 is provided with the first and second operation keys 4 and 5 and the first and second display lamps 6 and 7 on the upper surface 2a, even when assembled in a highly integrated device. The first and second operation keys 4 and 5 can be easily operated while confirming the display patterns of the first and second display lamps 6 and 7.

In addition, this invention is not limited to the said embodiment, Various application is possible.
(1) The first and second operation keys 4 and 5 and the display lamps 6 and 7 may be provided on the side surface of the case 2.
(2) The booster 14 is not necessarily provided.
(3) Other functions of the zero point adjustment function, the span point adjustment function, and the response time selection function may be displayed by combining the display patterns of the first and second display lamps 6 and 7.
(4) The first and second display lamps 6 and 7 may emit three or more colors.
(5) The emission colors of the first and second display lamps 6 and 7 may be other than red and green.
(6) The first and second display lamps 6 and 7 may be blinked in three or more blinking patterns having different blinking periods.
(7) In the above embodiment, the first to third response time setting patterns are stored in the memory of the control means 33. On the other hand, the first to third response time setting patterns are stored in the external device, and after the power is turned on, the first to third response time setting patterns are input from the external device to the control means 33 via the connector 3. The operation keys 4 and 5 may be used for selection. As another alternative, a plurality of response time setting patterns are stored in the external device, the user is allowed to select several response time setting patterns on the external device, and the selected response time setting patterns are transmitted from the external device via the connector 3. You may make it select by inputting to the control means 33. FIG. In this case, it is possible to set the response time setting pattern in detail for the convenience of the user. As another alternative, a plurality of response time setting patterns are stored in the external device, the user selects one response time setting pattern on the external device, and only the selected response time setting pattern is stored in the control means 33. You may do it. In this case, the memory capacity of the control means 33 can be reduced to reduce the cost.
(8) The first to third response time patterns may be stored in storage means provided separately from the control means 33.

DESCRIPTION OF SYMBOLS 1 Electropneumatic regulator 3 Connector 4,5 1st and 2nd operation key 6,7 1st and 2nd display lamp 33 Control means S2 Normal operation S3 Initial setting operation S4 Pressure regulation operation S5 Function setting operation S6 Zero point adjustment function S7 Span point adjustment function S8 Response time selection function

Claims (4)

In electropneumatic regulator that adjusts output pressure to set control pressure steplessly,
Push-type first and second operation keys;
First and second display lamps capable of emitting light in two colors ;
Depending on the operation contents of the first and second operation keys, the display pattern of the first and second display lamps is controlled by the emission color, the length of the blinking cycle, and the presence or absence of continuous lighting, and the combination of the display patterns Control means for notifying the operating state of the electropneumatic regulator;
An electropneumatic regulator characterized by comprising: The electropneumatic regulator according to claim 1 ,
Storage means for storing response time setting patterns with different response times;
The control means changes the display pattern of the first and second display lamps according to the response time setting pattern selected by the first and second operation keys, and the determined response time setting pattern Electro-pneumatic regulator characterized by changing response time according to In the electropneumatic regulator according to claim 1 or 2 ,
Pressure detecting means for detecting the output pressure;
A connector that is connected to an external device having a display function and that transmits a pressure detection value detected by the pressure detection means to the external device ;
The operating state is adjustment of a zero point or a span point set by operating the first or second operation key while observing the pressure detection value displayed on the external device. Electro-pneumatic regulator. The electropneumatic regulator according to any one of claims 1 to 3 ,
The electropneumatic regulator characterized in that the first and second operation keys and the first and second display lamps are provided on an upper surface.

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