JPH06245568A - Controller for control board - Google Patents

Abstract

PURPOSE:To provide a controller used in a control board, in which data setting ranges are divided into ones on a field side and a manufacturer side, and the setting data can not be changed by an ordinary user. CONSTITUTION:When a display changing switch (SWb) is operated, user data items are displayed by using a value display part 9A and a unit display part 9B in a display operation unit 6. If a display cover 26 is taken off and the set changing switch (SWa) is operated, data setting items to be set on a field side are displyed. Moreover, if the set charging switch (SWb) is operated while the data setting items are displayed, numerical values in the data setting items to be set are displayed. If the set changing switch (SWa) is operated during an operational state of the display changing switch (SWb), data setting items on a manufacturer side are displayed. When the display changing switch is operated in this state, numerical values in the data setting items are displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control panel controller for controlling and monitoring a load such as a power motor.

[0002]

2. Description of the Related Art A large number of power loads are installed in a building such as a building, and when controlling these power loads, a controller for a control panel incorporating a control sequence is used. Such a control panel controller is provided with a means for setting various data necessary for the control operation of the control controller, but the manufacturer's setting, the field setting, etc. have not been particularly classified.

[0003]

In the conventional controller for the control panel as described above, the general user may erroneously change the setting data, which may cause an unexpected trouble. In addition, the setting method is complicated and requires complicated operation procedures, and improvement of the operation method has also been required. The present invention has been made in view of the above problems, and an object thereof is to divide a settable range of data into a field and a maker, and prevent general users from changing the setting. An object of the present invention is to provide a controller for a control panel, which can also be used as a display means for displaying a normal load state or the like as a display means when setting data.

[0004]

According to a first aspect of the present invention, in a controller for a control panel that controls a load such as a power motor, a storage unit that stores data necessary for a load control operation and an operating state of the load. In addition to having display means for displaying various data for maintenance and inspection, a display changeover switch with an operating portion exposed and installed, and a setting changeover switch with the operating portion covered by a cover, operation of the display changeover switch At times, the data items intended for the user are switched and displayed, and when the setting switch is operated, the data setting items that can be set in the field are switched and displayed, and the data setting items are displayed by the operation of this setting switch. If the changeover switch is operated, the value of the relevant data setting item is changed over and displayed, and the displayed value will be changed to the set value of the relevant data setting item at the next operation of the setting changeover switch. If the display changeover switch and the setting changeover switch are simultaneously operated, the data setting items that can be set only by the manufacturer side are changed over and displayed. If the display changeover switch is operated while the data setting item is being displayed by the simultaneous operation of, the value of the data setting item is changed over and displayed, and the display value is displayed when the next display changeover switch and the setting changeover switch are operated simultaneously. Is provided as a set value of the data setting item in the storage means.

The display means is composed of a numeric display unit capable of floating point display.

[0006]

According to the first aspect of the present invention, the display means can be used as a display means for monitoring a normal load operation condition and the like, and it is possible to display items and set values at the time of data setting. In addition, the contents displayed on the display means are not items related to data setting when targeting general users, and prevent general users from arbitrarily changing the setting data. The range in which data can be set is divided with the manufacturer to prevent the data set by the manufacturer from being mistakenly changed in the field.

According to the second aspect of the present invention, since the display means is composed of a numerical display unit capable of displaying a floating point, it is possible to easily correspond to the rating of the power load even when used for displaying the current value. .

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows a block configuration of the function of the controller 5 for the control panel of the electric motor 1 having the function of the load operating current monitoring device of the present invention. The controller 5 for the control panel includes the display operation unit 6 and the control input / output unit 7. And the display operation unit 6 in the unit C performs signal processing of the entire unit.
A switch section 11 including a PU 8 and switches such as a mode setting switch for operation and a manual operation switch for operation / stop.
And a display unit 9 including a display element for displaying a status such as operation and stop, a display element for displaying an operation mode, and a display for displaying the number of times of operation / stop and an operating current value, and a display unit 9. Display drive unit 10 to be driven, and these display drive units 10
And a man-machine interface 12 interposed between the switch unit 11 and the CPU 8, the control input / output unit 7 and the CPU
8, a control input / output interface 13 for transmitting and receiving data to and from 8, and a load current detector 14 such as a CT
A measuring input interface 15 interposed between the load current detector 14 and the CPU 8, a power supply unit 25, an EEPROM 16 for writing and registering setting data, and a network connection device 17 for interfacing with a network. It

The illustrated control panel controller 5 is a general-purpose isolated operation system for controlling the operation / stop of one electric motor 1. The display operation unit 6 of this control panel controller 5 is shown in FIG. As shown in FIG. 1, a three-digit numerical value display section 9A composed of a 7-segment light emitting diode, a unit display section 9B indicating whether the displayed numerical value unit is time (hr) or ampere (A), and the electric motor 1 The display unit 9 is provided with a state display element L ₀ that indicates the state by the emission color and display elements La, Lb, and Lc for displaying the operation mode, while the switch section 11 is for “manual”, “off”, and “automatic” operation. In addition to the switches SW ₁ , SW ₂ , SW ₃ for mode setting, the manual operation switches S ₁ , S ₂ for operating / stopping, the setting changeover switch SWa for data setting, and the contents displayed on the numerical display section 9A. Switch And a display changeover switch SWb for switching.

Further, the display operation unit 6 includes a status display element L.
₀ , the numerical display unit 9A, the unit display unit 9B, the setting changeover switch SWa, and the display changeover switch SWb are covered with a light-transmittable display cover 26 on the exposed upper half of the front face and the display changeover switch SWb. The operation button, which is the operation unit, is exposed to the outside through a hole 26a provided in the display cover 26. The operation button, which is the operation unit of the setting changeover switch SWa, is covered with the display cover 26 so that the operation cannot be performed unless the display cover 26 is removed. Status display element L
_The displays on the numerical display unit 9A and the unit display unit 9B are visible through the display cover 26.

FIG. 3 shows an example of a system in which the control board controller 5 is connected to a network. In FIG. 3, a control panel 18 incorporating the controller 5 for the control panel has a built-in load current detector 14 that protects the main circuit, opens and closes the power supply, and detects the operating current. Breaker 4 equipped with a function to detect the current and trip, and output the detected current value and operation information
And a main circuit composed of an electromagnetic contactor 2 which operates / stops the electric motor 1 by a control output from the control input / output unit 7, and a main power supply circuit line are incorporated to control the input / output unit 7 and the electromagnetic contactor 2. Signal line between the display operation unit 6 and the breaker 4, and an external network main line 19 and a main power supply main line 20 are introduced, and the operation of an external input device (not shown). A signal line for transmitting data or detection data of the sensor device 21 connected to the temperature sensor and the vibration sensor provided in the electric motor 1 to the control input / output unit 7 is introduced.

In the network of the system shown in the figure, a time division multiplex transmission signal is sent from a transmission unit 23 provided in the central monitoring unit 22, and the address included in this time division multiplex transmission signal is the display operation unit 6 of the controller 5 for the control panel.
The display operation unit 6 of the controller 5 for the control panel receives the data when it matches the address of the terminal such as the address set in, and also returns the data such as the load state during the return waiting period provided as the answer back area. In this way, data can be exchanged between the transmission unit 23 and each control panel controller 5,
In the central monitoring device 22, the data to be transmitted and the display of the state can be performed by the display station 24 which exchanges the data with the transmission unit 23.

FIG. 3 shows an example of a system in which the controller 5 for the control panel is connected to the network. In FIG. 3, a control panel 18 incorporating the controller 5 for the control panel has a built-in load current detector 14 that protects the main circuit, opens and closes the power supply, and detects the operating current. Breaker 4 equipped with a function to detect the current and trip, and output the detected current value and operation information
And a main circuit composed of an electromagnetic contactor 2 which operates / stops the electric motor 1 by a control output from the control input / output unit 7, and a main power supply circuit line are incorporated to control the input / output unit 7 and the electromagnetic contactor 2. Signal lines between the display operation unit 6 and the breaker 4, and an external network main line 19 and a main power supply main line 20 are also introduced, and the operation of an external input device (not shown). A signal line for transmitting data or detection data of the sensor device 21 connected to the temperature sensor and the vibration sensor provided in the electric motor 1 to the control input / output unit 7 is introduced.

In the network of the system shown in the figure, a time division multiplex transmission signal is sent from the transmission unit 23 provided in the central monitoring unit 22, and the address included in this time division multiplex transmission signal is displayed on the control panel controller 5 respectively. When the address of the terminal such as the address set in the unit 6 matches, the display operation unit 6 of the controller 5 for the control panel receives the data, and also the data such as the load state during the return waiting period provided as the answer back area. Is sent back so that data can be exchanged between the transmission unit 23 and each control panel controller 5, and the central monitoring device 22 creates data to be transmitted,
The display of the status can be performed by the display station 24 which exchanges data with the transmission unit 23 by communication.

Here, the network trunk line 19 is composed of two signal lines for transmitting the time division multiplex transmission signal and two power supply lines for supplying backup power of the controller 5 for the control panel. The network and the control panel controller 5 can be connected by connecting the display operation unit 6 via a connector (not shown) provided on the 4-core cable. You can do it. Transmission unit 2
The power source sent from 3 is DC 24V, and the time division multiplex transmission signal is a baseband signal with V _P-0 of 24V. As shown in FIG.
And a data transmission band DA of data variable length that follows,
It consists of a return waiting period WT and a pause zone E, and control data and address data indicating the destination are written in the data transmission zone DA. The return waiting period WT is a period for returning a variable length return signal in the current mode to the transmission unit 23 by short-circuiting the signal lines via impedance on the terminal side of the display operation units 6 to 3C or the like.

Normally, the above-mentioned start is performed when the time division multiplex transmission signal is cyclically transmitted to a predetermined address from the transmission unit 23 and the status change or the like is made on the display operation unit 6 on the terminal side. At the timing of the mark S1, the current mode interrupt signal Si is shown in FIG.
, The data is returned to the transmission unit 23 at the timing of the return waiting period WT, and in response to this return, the transmission unit 23 searches the address of the interrupted terminal, Access is made with a division multiplex transmission signal, and data is received from a terminal.

The display operation unit 6 of the controller 5 for the control panel receives the operation data for controlling the electric motor 1 from the central monitoring device 22 through the network in this way, or the load operation state data to the transmission unit 23 at any time. The central monitoring device 22 side can perform centralized monitoring control. Next, the operation of the display operation unit 6 will be described. First, in the display operation unit 6, the operation mode can be selected by operating the buttons of the operation switches SW _{1 to} SW ₃ ,
When the manual mode is selected, only the operation by the manual operation switches S ₁ and S ₂ is accepted under the control of the CPU 8.
When the manual operation switch S ₁ is pressed, the CPU 8 gives control data for turning on the electric motor 1 ₁ to the control input / output unit 7,
The control input / output unit 7 generates and holds a control output for turning on the electromagnetic contactor 2 based on the control data. When the operation switch S ₂ is pressed, the CPU 8 gives control data for turning off the electric motor 1 to the control input / output unit 7, and the control input / output unit 7
On the basis of this control data, turns off the control output to turn off the electromagnetic contactor 2, and holds the off state of the control output until the next control data for turning it on is given.

In the automatic mode, the CPU 8 gives control data to the control input / output section 4 based on operation data from an external input device or a network to operate / stop the electric motor 1 and externally input the operation data. Whether it is received from the device or the network can be set by a setting operation described later. In the off mode, the operation is stopped and the control output from the control input / output unit 7 is turned off.

Here, the numerical value display section 9 of the display operation unit 6
With A and the unit display section 9B, the current operating current value, individual alarm data, peak current value, cumulative operating / stop count, integrated operating time can be monitored, and switching of this monitor can be performed by operating the display changeover switch SWb. Inrush current avoidance time, overload warning level, light load alarm level, start delay time in case of power failure, external control method, etc. can be set by operating the setting changeover switch SWa and the display changeover switch SWb. Has become.

That is, the state where the display cover 26 is not removed is supposed to be operated by the user, and in this state, under the control of the CPU 8, each time the display changeover switch SWb is pressed,
The display contents of the numerical display unit 9A and the display contents of the unit display unit 9B are switched in the order of the current operating current value, individual alarm data, peak current value, accumulated operation / stop count, and accumulated operation time, and the accumulated operation time is displayed. When it is finished, it returns to the normal display, that is, the display of the current operating current value. If the display changeover switch SWb is not operated during the display duration of the call display item, the normal display state is restored. If there is no alarm to be notified in the individual alarm data, this display is skipped and the next display is performed. It is also designed to jump to items. This display switching is a state in which the operation of changing the data cannot be performed, and the user is prevented from rewriting the data without permission.

The individual alarm data includes trip information of the breaker 4, advance notice of overload, light load alarm, network transmission failure, CPU 8 error, EEPROM 16 error, control input / output section 7 reset, and display operation unit itself reset. Etc., which is displayed as a combination code of numbers and alphabets. The number of times of operation / stop is CPU8
, And the cumulative operating time is also measured by the CPU8,
It is stored in the built-in RAM.

The data can be set when the operation mode is the off mode. In this case, the display cover 26 must be removed to enable the operation of the setting changeover switch SWa. Allows the operation of data setting. In this case, when the setting changeover switch SWa is operated, the display content of the numerical value display section 9A is switched according to the data setting item, and when the display changeover switch SWb is operated while the data setting item is displayed, the displayed numerical value is changed. If the setting changeover switch SWa is operated when a predetermined numerical value is displayed, the displayed numerical value is written in the EEPROM 16 as the set numerical value under the control of the CPU 8. Of course, the data written in the EEPROM 16 also includes a unique address on the network.

The above-mentioned data setting operation is intended for a limited number of people such as field coordinators, but the operation procedure for making data setting more complicated, and the operation procedure assuming only the data setting on the maker side is performed. It is provided. In this case, a method of operating the setting changeover switch SWa at the same time while pushing the display changeover switch SWb is adopted. When this simultaneous operation is performed, the load current detector 14 for monitoring the load current is detected.
Of the rating, that is, the setting of the coefficient according to the rating when displaying the current value, the number and type of water tanks when the electric motor 1 is used as a pump for the water tank, and the resetting of the cumulative number of times of starting and stopping and the cumulative operating time of the electric motor 1. It is possible to switch and display the setting items such as settings that are valid only on the manufacturer side, and the setting contents are displayed in the state where the items are displayed.
When the setting change switch SWa is switched while the predetermined setting contents are displayed, the setting change switch SWa is operated at the same time while pressing the display changeover switch SWb, and the setting contents at that time are controlled by the CPU 8. At EEPR
It will be written to the OM 16.

In this way, in the display operation unit 6, the contents that can be monitored by the display unit 9 are divided into three groups, that is, a general user, a limited person such as an on-site coordinator, and a maker, and data can be set on-site adjustment. Only the limited number of persons such as persons involved and the maker side are provided, and the range of items for which data can be set is further divided by both to prevent accidental data changes.

Since the numerical value display section 6A can display a floating point, it can be displayed even if the load current rating is changed, and various ratings can be met without replacing the display section.

[0026]

According to the first aspect of the present invention, in a controller for a control panel for controlling a load such as a power motor, a storage means for storing data necessary for a load control operation, an operating state of the load, and a maintenance inspection. Display means for displaying various data for, and a display changeover switch with the operation section exposed and installed,
The operation section has a setting changeover switch covered by a cover, and when the display changeover switch is operated, the data items intended for the user are changed over and displayed, and when the setting changeover switch is operated, the data setting items that can be set in the field are displayed. Switching display,
If the display changeover switch is operated while the data setting item is being displayed by operating this setting changeover switch, the value of the data setting item is changed over and displayed, and the display value is set when the next setting changeover switch is operated. If data is stored in the storage means as the set value of the item, and if the display changeover switch and the setting changeover switch are simultaneously operated, the data setting item that can be set only by the manufacturer side is changed over and displayed. If the display setting switch is operated while the data setting item is being displayed by simultaneous operation with the changeover switch, the value of the data setting item is changed over and displayed, and the next display changeover switch and setting changeover switch are operated simultaneously. Since the display value is sometimes provided as a setting value of the data setting item in the storage means, the display value is displayed. The column can be used not only as a display means for monitoring the status of normal load operation, but also as an item display and a set value display at the time of data setting. The content is not related to data setting for general users.It prevents general users from arbitrarily changing the setting data, and divides the range in which data can be set by the site coordinator and the manufacturer. Therefore, there is an effect that it is possible to prevent the data set by the manufacturer from being erroneously changed on site.

According to the second aspect of the present invention, since the display means comprises a numerical value display section capable of displaying a floating point, it is possible to easily correspond to the rating of the power load even when used for current value display. There is an effect.

[Brief description of drawings]

FIG. 1 is a front view of a display operation unit used in a first embodiment of the present invention.

FIG. 2 is a circuit configuration diagram of a controller for a control panel used in the above.

FIG. 3 is a system configuration diagram using the same as above.

FIG. 4 is an explanatory diagram of a transmission signal of a system using the same as above.

[Explanation of symbols]

 6 Display operation unit 9 Display section 9A Numerical display section 9B Unit display section SWa setting changeover switch SWb Display changeover switch 26 Display cover

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] May 10, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 1

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

[0004]

According to a first aspect of the present invention, in a controller for a control panel that controls a load such as a power motor, a storage unit that stores data necessary for a load control operation and an operating state of the load. In addition to having display means for displaying various data for maintenance and inspection, a display changeover switch with an operating portion exposed and installed, and a setting changeover switch with the operating portion covered by a cover, operation of the display changeover switch At times, the data items intended for the user are switched and displayed, and when the setting switch is operated, the data setting items that can be set in the field are switched and displayed, and the data setting items are displayed by the operation of this setting switch. If the changeover switch is operated, the value of the relevant data setting item is changed over and displayed, and the displayed value will be changed to the set value of the relevant data setting item at the next operation of the setting changeover switch. If the display changeover switch and the setting changeover switch are simultaneously operated, the data setting items that can be set only by the manufacturer side are changed over and displayed. in a state where data setting item by the simultaneous operation is shown, the value of the data setting item is switching display if the operation of the display changeover switch, the data sets the display value when operation of the next set Teisetsu換switch The data display processing means for storing the setting value of the item in the storage means is provided.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0026

[Correction method] Change

[Correction content]

[0026]

According to the first aspect of the present invention, in a controller for a control panel for controlling a load such as a power motor, a storage means for storing data necessary for a load control operation, an operating state of the load, and a maintenance inspection. Display means for displaying various data for, and a display changeover switch with the operation section exposed and installed,
The operation section has a setting changeover switch covered by a cover, and when the display changeover switch is operated, the data items intended for the user are changed over and displayed, and when the setting changeover switch is operated, the data setting items that can be set in the field are displayed. Switching display,
If the display changeover switch is operated while the data setting item is being displayed by operating this setting changeover switch, the value of the data setting item is changed over and displayed, and the display value is set when the next setting changeover switch is operated. If data is stored in the storage means as the set value of the item, and if the display changeover switch and the setting changeover switch are simultaneously operated, the data setting item that can be set only by the manufacturer side is changed over and displayed. in a state where data setting item by the simultaneous operation of the changeover switch is displayed, by switching display the value of the data setting item if the operation of the display selector switch, the display value when operation of the next set Teisetsu換switch Since the data display processing means for storing the set value of the data setting item in the storage means is provided, the display means is operated under normal load operation. It can be used not only as a display means for monitoring, etc., but also as an item display and a set value display at the time of data setting, and the content displayed by the display means is intended for general users. In this case, it is not an item related to data setting, so that general users cannot arbitrarily change the setting data, and because the field coordinator and the maker side divide the range in which data can be set, the maker side sets it. This has the effect of preventing the stored data from being erroneously changed in the field.

Claims (2)

[Claims] 1. A controller for a control panel for controlling a load such as a power motor, a storage unit for storing data necessary for load control operation, and a load operating state and various data for maintenance and inspection. Display unit, a display changeover switch with the operation section exposed and installed, and a setting changeover switch with the operation section covered by a cover, and when the display changeover switch is operated, the data items intended for the user are changed over and displayed. When the setting changeover switch is operated, the data setting items that can be set at the site are changed over and displayed, and if the display changeover switch is operated while the data setting items are displayed by the operation of this setting changeover switch, the data setting item concerned will be displayed. Value is displayed by switching, and the display value is stored in the storage means as the setting value of the data setting item at the next operation of the setting changeover switch, and the display is turned off. If there is simultaneous operation of the switch and the setting changeover switch, the data setting items that can be set only by the manufacturer are switched and displayed, and the data setting items are displayed by the simultaneous operation of the display changeover switch and the setting changeover switch. If the display changeover switch is operated while the display changeover switch is operated, the value of the data setting item is changed over and displayed, and the display value is stored as the set value of the data setting item during the next simultaneous operation of the display changeover switch and the setting changeover switch. A controller for a control panel, which is provided with a data display processing unit for storing the data in a memory. 2. The controller for a control panel according to claim 1, wherein the display means comprises a numerical display unit capable of displaying a floating point.