JP4172537B2 - Control device for fan coil unit - Google Patents

Description

【００１７】
【表２】

【００１８】
本発明は、まず設定器４ａをコントローラ３ａに接続し、メンテナンスモードに切替えた後、操作スイッチ４２ａを操作して上記制御定数をコントローラ３ａに設定する。図５はメンテナンスモードに切替えた時の液晶表示部４１ａの画面を示し、図５（ａ）は項目番号を選択表示した画面で、図５（ｂ）は設定値変更状態を表示した画面を示す。項目番号を選択してから｛図５（ａ）参照｝、各項目の設定番号（または設定値）を設定した後｛図５（ｂ）参照｝、項目番号００を選択し、設定番号を２に選択して運転／停止スィッチを操作することで、各項目で設定した制御定数は設定器４ａ内のＥＥＰＲＯＭ４０ａに格納されるとともに、コントローラ３ａ内のＥＥＰＲＯＭに格納される。この設定器４ａを他のコントローラ（例えば図１の３ｂ）に接続し、項目番号を００とし、設定番号を２に選択し、運転／停止スィッチを操作することで、コントローラ３ａと同様の制御定数がコントローラ３ｂに格納される。次いで、設定器４ａを他のコントローラ３ｃに接続し、上記と同様の操作を行うことでコントローラ３ａと同様の制御定数がコントローラ３ｃに格納される。このように中央監視装置と通信接続が完了していない状態でも、設定器をツールとして用いて制御定数を簡単に各コントローラに格納することができる。またコントローラに格納された制御定数は設定器をメンテナンスモードにし、項目番号を００とし、設定番号を４に選択し、運転／停止スィッチを操作することで、接続したコントローラの制御定数を設定器のＥＥＯＲＯＭに格納することができるので、設定器を交換してもそれまでに設定した制御定数を簡単に引継ぐことができる。
【００１９】
さらに、本発明では、設定器４ａの操作スイッチ４１ａを操作することにより、ニューロンＩＤをネットワーク上に送出することができる。上記の設定器の場合、例えば、停止中に「温度 高」スィッチを押しながら、「運転／停止」スィッチを押し、そのまま両スィッチを数秒間押すことにより、ニューロンＩＤをネットワーク上に送出することができる。従って天井裏など作業が困難な場所に設置されることが一般的なコントローラのカバーを開けてサービススィッチを押すといった面倒な操作が不要となり、安全面、作業効率面での大幅な改善となる。
【００２０】
【発明の効果】
以上に記述の如く本発明によれば、１台の設定器に所定の制御定数を入力しておけば、そのデータは他のコントローラに転送できるので、複数のコントローラへの制御定数の設定作業を速やかに行うことができる。またコントローラ内のニューロンチップのＩＤ番号をネットワーク上へ送出するための操作を、居住空間に設置される設定器で行うことができる。また本発明によれば、ＬＯＮＷＯＲＫＳに対応した構成を有するので、空調システムのオープン化を図ることができる。
【図面の簡単な説明】
【図１】本発明の実施の形態に係わる空調システムの全体構成を示すブロック図である。
【図２】本発明の実施の形態に係わる空調設備の構成を示すブロック図である。
【図３】ファンコイルコントローラオブジェクトの階層構造を示す図である。
【図４】本発明の実施の形態に係わる設定器の正面図である。
【図５】本発明の実施の形態に係わる設定器の表示部を示す図で、項目番号を選択表示した画面（ａ）及び設定値変更状態を表示した画面（ｂ）である。
【符号の説明】
１ａ、１ｂ、１ｃ：空調設備
２ａ、２ｂ、２ｃ：ファンコイルユニット
１０ａ、１０ｂ、１０ｃ：送風ファン
１１ａ：冷温水コイル、１２ａ：温水コイル、１３ａ：冷水コイル
１４ａ、１４ｂ、１４ｃ、１５ａ、１６ａ：電動弁
３ａ、３ｂ、３ｃ：コントローラ
３０ａ：ネットワーク用ＩＣチップ
４ａ、４ｂ、４ｃ：設定器
４０ａ：ＥＥＰＲＯＭ
４１ａ：液晶表示部
４２ａ：操作スィッチ
１００：中央監視制御装置
１０１：通信線
１０２：ＧＷ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a control device for a fan coil unit for controlling the operation of a fan coil unit used in an air conditioning facility such as a building.
[0002]
[Prior art]
In air conditioners such as urban buildings and hotels equipped with multiple tenants, fan coil units that discharge air that has been heat-exchanged by a cooling coil are installed in each room, and the flow rate and ventilation of cold water or hot water flowing through the cooling coil By adjusting the fan air volume with a controller located close to the fan coil unit, it is installed indoors and has basic functions such as changing the temperature setting, switching between manual operation and automatic operation, and displaying the setting value and air volume. It is comprised so that it may adjust to the temperature set with the setting device which has. According to this air conditioning equipment, since the central machine room and the fan coil unit are connected only by the cold / hot water pipe, each room can be individually air-conditioned. On the other hand, in the field of building air conditioning equipment, distributed control type air conditioning systems have been proposed and put into practical use in order to efficiently control a plurality of air conditioners (such as air conditioners or fan coil units). For example, in Japanese Patent Laid-Open No. 10-229590, (1) a network IC chip (neuron chip) storing the same program is mounted on each of a main terminal and a plurality of air conditioner terminal devices, and each IC chip is connected to a LON. (2) In order to simultaneously communicate with all connected air conditioners, a priority setting switch is provided in each terminal to recognize individual air conditioner terminals. 3) It is described that the operation of many air conditioners is controlled by stopping the ACK service for confirming that the command from the main terminal has been received and inputting the network variable for confirming the operating state in the application software. Yes. This distributed control type air conditioning system has an advantage that procedures related to a communication protocol can be omitted in an application, and a number of terminal devices can be configured by neuron chips storing one type of EEPROM.
[0003]
[Problems to be solved by the invention]
In the air conditioner equipped with a plurality of fan coil units as described above, even if the controller for the fan coil unit is not connected to the network of the central monitoring and control device or is connected to the network, It is common at the time of start-up to perform trial run adjustment in a situation where the controller cannot recognize the controller (a situation where the controller is not connected in software). Under such circumstances, there are the following problems when adjusting the trial operation of a large number of fan coil units. In the conventional distributed control type air conditioning system, when the ID number stored in each neuron chip is not recognized from the main terminal (main CPU), the control constant cannot be set from the upper (central) side through the network. The control constant is set in the controller from the setting device. Therefore, in air-conditioning equipment with many controllers installed, it is necessary to input control constants according to the installation location of the fan coil unit from each setting device to the controller in order to operate the fan coil unit during trial operation adjustment. Since there are a wide variety of constants, there is a problem that it takes a lot of man-hours to set control constants in the controller.
[0004]
An object of the present invention is to provide a fan coil unit control device that can solve the above-described problems and can quickly set a control constant for each controller when performing trial operation adjustment of a plurality of controllers. It is to be.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a fan coil unit control device according to the present invention includes a plurality of controllers connected to a plurality of fan coil units via an interface, and electrically connected to each controller and controlled by each controller. In a fan coil unit control device comprising a setting means for setting constants, a display means for displaying operating conditions, and a plurality of setting devices having operation switches, each setting device stores a control constant set in a predetermined controller. storage means for, in which the basic configuration in that it has a transfer means for transferring said control constants by operating switch of the setting device to other controllers.
[0006]
In the present invention, it is necessary to have a communication means for connecting the controller to a network. By providing such communication means, measured values (for example, ambient temperature and room temperature) used for temperature control can be input to the controller via a network. In addition, the indoor set temperature, the fan air flow, and the operation state of the controller can be set from the network, and the operation mode of the controller can be determined.
[0007]
In the present invention, the communication means is LONWORKS (LON is a product name of Echelon), and the function of sending the neuron chip ID number in the controller to the network by operating the operation switch of the setting device. Have. LONWORKS uses the seven layers of OSI (Open System Interconnection) standardized by ISO. When developing a program, declare a network variable at the beginning of the program and assign a numerical value to the variable. Thus, the network system automatically communicates. The above seven layers are composed of a lower layer that defines rules for exchanges and the like constituting the network (data is transmitted / received to / from the network as a bit string) and an upper layer that defines end-to-end application rules, The lower layer is composed of a first layer (physical layer), a second layer (data link layer), a third layer (network layer), and a fourth layer (transport layer). Session layer), sixth layer (presentation layer), and seventh layer (application layer).
[0008]
According to the present invention, when trial operation adjustment of a plurality of controllers is performed , a predetermined control constant is input from one setting device to one controller, the setting device is connected to another controller, and then the setting device is set. Since the control constant can be transferred to another controller simply by operating the operation switch, it is possible to quickly set the control constant to a plurality of controllers.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Details of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing a system configuration of an air conditioning equipment to which the present invention is applied, FIG. 2A is a block diagram showing an example of the equipment configuration of the air conditioning equipment {FIG. 2A is a detail of part A in FIG. FIG. 2B is a block diagram showing another example of air conditioning equipment. In FIG. 1, reference numerals 1a, 1b, and 1c denote air conditioning facilities. Each air conditioning facility includes fan coil units 2a, 2b, and 2c and fan coil controllers (hereinafter referred to as controllers) 3a, 3b, and 3c that control the operation thereof. For example, setting devices 4a, 4b, and 4c installed in the room are included to perform operation settings. The controllers 3a, 3b, and 3c are connected to the central monitoring and control apparatus 100 via a GW (gateway: protocol converter between networks having different properties) 102 and a communication line 101. As the communication line, for example, a twisted pair line is used to connect to the LONWORKS network. As shown in FIG. 2A, the air conditioner 1a includes a fan coil unit 2a having a blower fan 10a and a cold / hot water coil 11a, an electric valve 14a for controlling the flow rate of the cold / hot water coil 11a, and a fan coil unit 2a. It has the controller 3a electrically connected and the setting device 4a electrically connected to the controller 3a. The controller 3a is equipped with a network IC chip (neuron chip) 30a including an ID number for distinguishing from other controllers, and the setter 4a has an EEPROM (electrically erased) for storing control constants. A possible non-volatile memory) 40a is mounted. The cold / hot water coil 11a is connected to a single heat source (both not shown) via an outward pipe and a return pipe. The other air conditioning facilities 1b and 1c are configured in the same manner as the air conditioning facility 1a. According to the air conditioning facility 1a, the air exchanged by the cold / hot water coil 11a is discharged by the blower fan 10a, and the controller 3a controls the flow rate of the hot water or cold water and the rotation speed of the fan, thereby setting the room at the set temperature. Can be kept in. FIG. 2 (b) uses a hot water coil 12a and a cold water coil 13a instead of the cold / hot water coil 11a of FIG. 2 (a). The hot water coil 12a is connected to an electric valve 15a, and the cold water coil 13a is electrically driven. It is connected to the valve 16a. The hot water coil 12a and the cold water coil 13a are each connected to a heat source (both not shown) via an outgoing pipe and a return pipe.
[0010]
In addition to the above-described network IC chip (neuron chip), the controller 3a includes a dip switch (hereinafter referred to as DSW, not shown) for selecting a function, a connection jack connected to the setting device 4a, and an LED display for displaying an operation state. Part (both not shown). Input / output variables sent and received through the network are composed of a node object that defines the communication conditions and a fan coil controller object that defines the operating conditions of the controller. The fan coil controller object conforms to the standard specification of the LonMark Association, For example, it is configured as shown in FIG. In other words, the fan coil controller object is a condition that is set in the mandatory condition “Mandate Network Variables”, optional condition “Optional Network Variables”, set by the setting device 4a or the central monitoring control device 100, and does not change after being set. It consists of a “Configuratin Property” and a “Manufacturer Defined Section” which is a condition set by the manufacturer. In FIG. 4 (however, excluding “Configuratin Property”), the 10 variables described on the left side {indoor temperature (nv1), indoor set temperature (nv2), fan speed (nv6), operation mode (nv7) ... outside air Temperature, pipe type} is the input network variable, and the eight variables listed on the right side {warm water valve opening (nv3), cold water valve opening (nv4), fan speed (nv5), room temperature (nv15), effective Set temperature (nv16)... Accumulated operation time} is an output network variable. “Configuratin Property” is a variable for setting parameters necessary for control and temperature correction by the network. Analog data transmission beat, digital data transmission beat, set temperature, cooling mode dead zone, heating mode dead zone, etc. Includes items.
[0011]
FIG. 4 is a front view of the setting device according to the embodiment of the present invention. The setter 4a performs liquid crystal display 41a for displaying the device operation state, set temperature, air volume, cooling / heating state, outside air temperature, room temperature, etc., switching between operation and stop, temperature setting, air volume switching, operation switching, and the like. An operation switch 42a is provided, and an EEPROM 40a (see FIG. 2) and a temperature sensor IC (not shown) are provided therein. The setter 4a is connected to the controller 3a by a modular connector method, and an asynchronous method (start bit / stop bit method) is adopted as a data transmission method. The start-stop synchronization method is a simple method. However, since the clock waves on the transmission side and the reception side are different, RS485 is used in the present invention in consideration of the bit width and fluctuation on the transmission path.
[0012]
Before using the control device of the present invention, for example, the following function is selected by operating the DSW. (1) Presence / absence of connection of indoor connector, (2) Operation setting at power-on (selection of operation at initial value or operation before power failure), (3) Coil specification (single coil or 2 (4) Selection of one coil), (4) Fan state in dead zone (selection of whether the fan operating state is set to L or stopped when the measured value is in the dead zone with respect to the set value during air conditioning control), (5) Application of non-voltage contact 1 (not used, cooling / heating switching, emergency stop, distinction between occupancy and vacancy), (6) Application of non-voltage contact 2 (not used, cooling / heating switching, emergency stop, occupancy) (7) Controller sensor application (no two sensors are used, sensor 1 is return air temperature, sensor 2 is pipe temperature, sensor 1 is return air temperature and sensor 2 is pipe temperature), (8 ) Return air temperature acquisition method (network, controller sensor, room) Setter), (9) a control method of the valve (on-off control, floating control).
[0013]
When the controller 3a is turned on, after reset is detected, initialization processing such as RAM check, reading of functions set by DSW, valve fully closing operation and storing EEPROM contents in memory is performed, followed by network data Is received. In this reception process, the measurement value used for temperature control is acquired from either a network, a temperature sensor (not shown) connected to the controller, or a temperature sensor (not shown) built in the setting device according to the selection of the DSW. The effective set temperature is determined according to the mode. Next, information such as the above measured value and the current operation mode is output by an output network variable (state change or transmission beating cycle), and network data transmission processing is performed.
[0014]
The operation mode is determined by a start / stop command from the indoor setting device 4a, a fan speed command from the network, or an application mode input. In the case of a single coil {see FIG. 2 (a)}, it is determined by measuring the pipe temperature with a sensor and judging the water flow (hot water or cold water). In the case of two coils {refer to FIG. 2 (b)}, air conditioning determination is made after reception of on / off and after a certain period. The fan air volume control is calculated from the deviation between the measured return air temperature and the set temperature. ON / OFF control or floating control is employed for opening and closing the valve.
[0015]
When performing test run adjustment, in the present invention, if a control constant is set in a controller with one setting device, the setting device is connected to another controller, and the operation switch is operated as follows to The same control constant can be set for these controllers. In the present embodiment, the maintenance mode items are 36 items including, for example, setting end, operation start set temperature, stop set temperature display, power failure recovery operation, room temperature display, measured temperature display, air volume switching, and operation switching. However, among these items, 23 items (control constants) related to the operation setting of the controller are shown in Table 1 (however, excluding (12) and (14)) and Table 2.
[0016]
[Table 1]

[0017]
[Table 2]

[0018]
In the present invention, first, the setting device 4a is connected to the controller 3a, and after switching to the maintenance mode, the operation switch 42a is operated to set the control constant in the controller 3a. FIG. 5 shows a screen of the liquid crystal display unit 41a when switched to the maintenance mode, FIG. 5 (a) shows a screen in which item numbers are selected and displayed, and FIG. 5 (b) shows a screen in which a setting value change state is displayed. . After selecting the item number {see FIG. 5 (a)}, after setting the setting number (or setting value) of each item {see FIG. 5 (b)}, select item number 00 and set the setting number to 2. by selecting and operating the operation / stop switch on, together with the control constants set in each item is stored in the EEPROM 40a in the setting device 4a, and stored in the EEPROM in the controller 3a. By connecting this setting device 4a to another controller (for example, 3b in FIG. 1), setting the item number to 00, selecting the setting number to 2, and operating the operation / stop switch, the same control constant as the controller 3a is obtained. Is stored in the controller 3b. Next, the setting device 4a is connected to another controller 3c, and the same control constant as that of the controller 3a is stored in the controller 3c by performing the same operation as described above. Thus, even when the communication connection with the central monitoring apparatus is not completed, the control constant can be easily stored in each controller using the setting device as a tool. The control constant stored in the controller is set to the maintenance mode, the item number is set to 00, the setting number is set to 4, and the operation / stop switch is operated to set the control constant of the connected controller. Since it can be stored in the EEOROM, the control constants set so far can be easily taken over even if the setting device is replaced.
[0019]
Furthermore, in the present invention, the neuron ID can be sent out on the network by operating the operation switch 41a of the setting device 4a. In the case of the above setting device, for example, the neuron ID can be sent to the network by pressing the “run / stop” switch while pressing the “high temperature” switch while it is stopped, and pressing both switches for a few seconds. it can. Therefore, installation in a difficult place such as the back of the ceiling eliminates the troublesome operation of opening the cover of a general controller and pressing the service switch, which greatly improves safety and work efficiency.
[0020]
【The invention's effect】
As described above, according to the present invention, if a predetermined control constant is input to one setter, the data can be transferred to another controller. It can be done promptly. In addition, an operation for sending the ID number of the neuron chip in the controller to the network can be performed by a setting device installed in the living space. Further, according to the present invention, the air conditioning system can be opened because it has a configuration corresponding to LONWORKS.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an overall configuration of an air conditioning system according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a configuration of an air conditioning facility according to the embodiment of the present invention.
FIG. 3 is a diagram illustrating a hierarchical structure of fan coil controller objects.
FIG. 4 is a front view of a setting device according to the embodiment of the present invention.
FIG. 5 is a diagram showing a display unit of a setting device according to an embodiment of the present invention, which is a screen (a) for selecting and displaying item numbers and a screen (b) for displaying a setting value change state.
[Explanation of symbols]
1a, 1b, 1c: Air conditioning equipment 2a, 2b, 2c: Fan coil units 10a, 10b, 10c: Blower fan 11a: Cold / hot water coil, 12a: Hot water coil, 13a: Cold water coils 14a, 14b, 14c, 15a, 16a: Motorized valves 3a, 3b, 3c: controller 30a: network IC chips 4a, 4b, 4c: setting device 40a: EEPROM
41a: Liquid crystal display unit 42a: Operation switch 100: Central monitoring and control device 101: Communication line 102: GW

Claims (1)

A plurality of controllers each connected to a plurality of fan coil units via an interface, a setting means that is electrically connected to each controller and sets a control constant for each controller, a display means that displays an operating state, and an operation switch In the fan coil unit control device comprising a plurality of setting devices and a communication means for connecting the controller to a network, the setting devices each have a storage means for storing a control constant set in a predetermined controller; In addition to having a transfer means for transferring the control constant to another controller by the operation switch , the communication means is a RonWorks technology, and the ID number of the neuron chip mounted in the controller is operated by the operation switch of the setting device To send on the network Fan coil unit control apparatus characterized by having.

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