JPS58208532A - Self-diagnosing device for air conditioner - Google Patents

Self-diagnosing device for air conditioner

Info

Publication number
JPS58208532A
JPS58208532A JP57090155A JP9015582A JPS58208532A JP S58208532 A JPS58208532 A JP S58208532A JP 57090155 A JP57090155 A JP 57090155A JP 9015582 A JP9015582 A JP 9015582A JP S58208532 A JPS58208532 A JP S58208532A
Authority
JP
Japan
Prior art keywords
microcomputer
output
air conditioner
self
relay
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP57090155A
Other languages
Japanese (ja)
Inventor
Hajime Sugiyama
肇 杉山
Mitsuru Niima
新間　充
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP57090155A priority Critical patent/JPS58208532A/en
Publication of JPS58208532A publication Critical patent/JPS58208532A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/38—Failure diagnosis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Signal Processing (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE:To shorten a time spent during the shooting of a troubled part and to enable the approximate determination of a troubled spot without the use of a tester or a particular measuring instrument. CONSTITUTION:A control switch 4, an input port 9 for an output feedback for self-diagnising, an input port 8 for monitoring a power source voltage, and a display unit 14 and connected to a microcomputer. After a normal control 15 of an air condition is performed, in accordance with a diagnosing routine, a circuit check 16 is conducted through feedback from an output of a relay driver 5 to a microcomputer 1, of an operating state of a relay outputted from an output port and a condition signal of a relay under an actual operation. The data is compared with the output data from the microcomputer 1 to determine whether or not it is abnormal 17. In case they coincide with each other, it is judged to be normal and returned to a main loop. If it is judged as abnormal, a location of an output port, where they do not coincide with each other, is outputted for display 18 as a troubled spot by means of a display unit 14. This approximately determines a troubled spot location in case a trouble occurs during operation of an air conditioner.

Description

【発明の詳細な説明】 この発明は、空気調和機の電子制御回路の故障診断ケそ
れ自身が行う、自己診断装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a self-diagnosis device that performs failure diagnosis of an electronic control circuit of an air conditioner itself.

従来、制御回路に異常があった場合、異常部品を探し出
すのは９回路が複雑又はプログラムに依存する部分が多
い特等困難な場合が多かった。Conventionally, when there is an abnormality in a control circuit, it has often been particularly difficult to find the abnormal component because the circuit is complex or has many parts that depend on programs.

この発明はこのような欠点を除去（たものである。つま
り、故障部品発見までの時間を短縮し、テスターあるい
は、特殊な測冗器が無くとも、故障カ所の見当がつけら
れることを目的としたものである。The purpose of this invention is to eliminate these drawbacks. In other words, the purpose of this invention is to shorten the time it takes to find a faulty part and to be able to locate the faulty part without a tester or special redundancy measurement device. This is what I did.

以下に、この発明の一実施例について駆１図及び第２図
によって曲明する。第１図にこの発明の一実施例を示す
ブロック図である。このブロック図は、空機調和機の制
御装置である。（１）にマイクロコンピュータで、温度
検出素子とＬてサーミスタ（３）が接続され、出力装置
としてバッファ（５）を通してコンプレッサー駆動用１
）レー（６）とファンモーター駆動用１１レー（７）が
接続されている。また、制御スイッチ（４）も接続され
ている。ｌｉ源（２１にマイクロコンピュータ（１）に
電力を供給している。自己診断用の出力帰還用として入
力ボート（９）があり１寸た電源電圧監視用として入力
ポート（８）がある。そして表示装置Ｑ４も接続されて
いる。An embodiment of the present invention will be explained below with reference to FIGS. 1 and 2. FIG. 1 is a block diagram showing an embodiment of the present invention. This block diagram is a control device for an air conditioner. A temperature detection element and a thermistor (3) are connected to (1) by a microcomputer, and a buffer (5) is used as an output device to drive the compressor.
) relay (6) and fan motor drive 11 relay (7) are connected. A control switch (4) is also connected. The li source (21) supplies power to the microcomputer (1). There is an input port (9) for output feedback for self-diagnosis, and an input port (8) for monitoring the power supply voltage. A display device Q4 is also connected.

このように構成された。空気調和機の自己診断装置につ
いて、その作用を説明する。It was configured like this. The operation of the air conditioner self-diagnosis device will be explained.

診断は、プログラムにより２つの方法がある。　１つは
１診断ルーチンを空気調和機制御ルーチンのメインルー
プ内に入れてし甘う方法である。第２図（ａ）ｉｄ　、
これをフローチャート化したものである。プログラムは
先頭から開始し、空気調和機の通常側ａ（へ）を行った
後９診断ルーチンを通る。ここで、出力ポートから出力
されているリレーの動作状態と、実際動作しているリレ
ーの状態信号を、リレードライバ（５）の出力からマイ
クロコンピュータ（１）へ帰還入力させ回路チェック（
至）を行ないそのデータとマイクロコンピュータ（１）
からの畠カデータを異常かαη比較し、一致１升場合げ
異常なＬと判断１メインループへ戻る。一致し々かった
場合は異常であると判断り１．一致しなかった出力ポー
トの場所を表示装置α４より異常個所を表示用力（至）
する。この異常表示出力（至）は、異常表示専用の表示
装置圓を設けてもよいし、既存の温度表示の為の表示装
置と兼用させてもよい。これで、空気調和機の動作中に
異常が発生（た場合、Ｒ常個所が概略−わかるわけであ
る。There are two methods for diagnosis depending on the program. One method is to put one diagnostic routine into the main loop of the air conditioner control routine. Figure 2 (a) id,
This is a flowchart. The program starts from the beginning, performs the normal side a of the air conditioner, and then passes through nine diagnostic routines. Here, the operating status of the relay output from the output port and the status signal of the actually operating relay are fed back into the microcomputer (1) from the output of the relay driver (5), and the circuit is checked (
) and the data and microcomputer (1)
Compare the Hatake Ka data from 1 to see if it is abnormal or not, and if there is a match, it is determined that L is abnormal. 1 Return to the main loop. If there are many matches, it is determined that there is an abnormality.1. Display the location of the output port that does not match from the display device α4.
do. This abnormality display output (to) may be provided with a display device dedicated to displaying the abnormality, or may be used also as an existing display device for temperature display. Now, if an abnormality occurs during the operation of the air conditioner, you can roughly understand the R-normal location.

もう１つの方法に２診断用のスイッチを別に設け、この
スイッチが入つ大時９診断プログラムが実行するよう（
Ｆ　、空気調和機の制御ルーチンのメインテープ外へ吊
しておく方法である。Another method is to provide a separate switch for 2 diagnostics, and when this switch is turned on, the 9 diagnostic program will be executed (
F. This is a method of hanging it outside the main tape of the air conditioner control routine.

第２図（ｂ）に、こｆ′Ｌ′ｆＩ−フローチャート化し
たものである。プログラムは先頭力・ら開始（、空気調
和機の通常制御Ｕθを行った後２診断スイッチが入って
いるかどうか診断開始０９を調べる。切なているときは
、メインテープを回シ、入っているときは１診断プログ
ラム実行に移る。出力ポートからリレー動作のための回
路チェックデータを出力（４）しながら、ドライ・く−
出力（５）からデータを取シ込み回路チェック（ト）し
、比較を順次行々う。以下の動作は、前記第２図（ａ）
の場合と同じである。FIG. 2(b) shows this f'L'fI flowchart. The program starts from the front power (2) After performing normal control Uθ of the air conditioner, check diagnosis start 09 to see if the diagnostic switch is on. If it is off, turn the main tape. 1 starts the diagnostic program execution.While outputting the circuit check data for relay operation from the output port (4),
Data is received from the output (5), the circuit is checked, and comparisons are made sequentially. The following operation is shown in FIG. 2(a) above.
The same is true for .

次に動作例を第２図（ａ）の場合について説明する。プ
ログラムが開始され、空気調和機の制御（至）ルーチン
内でサーミスタ（３）からの温度データにより、コンプ
レッサー駆動用リレー（６）を動作させるために、デー
タ１を出力する。次に、リレードライバ（５）の出力よ
シ信号を入力（９）シたとき、同じくデータ１が得られ
れば、正常であるので、再び空気調和機の制御（至）ル
ーチンへ戻る。ところが、データがＯであった場合は、
異常であるので、コンプレッサー駆動リレー回路が異常
であるという信号を出すために、異常個所出力（至）ル
ーチンを実行して終える。また、電源電圧異常の場合も
同様な動作をするが、この場合比較電圧値データは、マ
イクロコンピータ（１）が記憶しているものとの比較に
なる。Next, an example of operation will be described for the case shown in FIG. 2(a). The program is started, and data 1 is output in order to operate the compressor drive relay (6) based on the temperature data from the thermistor (3) within the air conditioner control routine. Next, when a signal is input (9) to the output of the relay driver (5), if data 1 is also obtained, it is normal, and the process returns to the air conditioner control routine again. However, if the data is O,
Since it is abnormal, the abnormal point output routine is executed to output a signal indicating that the compressor drive relay circuit is abnormal, and the process ends. Further, a similar operation is performed when the power supply voltage is abnormal, but in this case, the comparison voltage value data is compared with what is stored in the microcomputer (1).

この発明は以上述べたように、異常個所を制御装置自身
が教えてくれることにな夛、故障発見までの時間短縮、
検査に特別な装置がいらなくなる等のサービス性向上及
び信頼性向上など第１図はこの発明による空気調和機の
自己診断装置を示すブロック図、第２図（ａ）は診断ル
ーチンをメインループ内に入れた場合のフローチャート
、第２ｂ（ｂ）は診断ルーチンをループ外に入れた場合
のフローチャートである。As mentioned above, this invention is based on the fact that the control device itself can tell you where the abnormality is, reducing the time it takes to discover a fault.
Improved serviceability and reliability, such as eliminating the need for special equipment for inspection. Figure 1 is a block diagram showing a self-diagnosis device for air conditioners according to the present invention, and Figure 2 (a) shows the diagnosis routine within the main loop. 2b is a flowchart when the diagnostic routine is placed outside the loop.

なお、（４）はキースイッチ、（５）はリレードライバ
、（６）はコンプレッサ駆動用リレー、（７）はファン
モータ駆動用リレー、（８）は電源電圧監視用入力ポー
ト、（９）はリレー動作帰還入力、萌はキースイッチ入
力、（ロ）はリレードライブ出力、＠はキースキャン出
力、（１３は電源入力、α尋は表示装置である。In addition, (4) is a key switch, (5) is a relay driver, (6) is a compressor drive relay, (7) is a fan motor drive relay, (8) is an input port for power supply voltage monitoring, and (9) is a Relay operation feedback input, Moe is key switch input, (b) is relay drive output, @ is key scan output, (13 is power input, αhiro is display device.

Claims (1)

【特許請求の範囲】 １）圧縮機、ファンモータ、電磁弁無の制御全−ｒ−，
６２メにマイクロコンピュータ答の電子回路を備えた空
気調和機において、被制御部品及び制御回路の故障診断
をマイクロコンピュータ等の電子回路で行ない、かつマ
イクロコンピュータ等の電子回路の良否判断を電子回路
自身で行なうことを特徴とした空気調和機の自己診断装
置。 ２）マイクロコンピュータのプログラム内で診断プログ
ラムがメインルーチン内にあり、恒にチェックＬながら
動作することを特徴とする特許請求の節明第１項記載の
空気調和機の自己診＃ｒ製償。 ３）出力ポートの内容が確実に出力されたかどうかを、
入アボートに帰還させて一致、不一致を調べることによ
り、故障診断を“ることを特徴とする特許請求の範囲第
１項記載の空気調和機の自己診断装置。[Claims] 1) Compressor, fan motor, control without solenoid valve,
In an air conditioner equipped with an electronic circuit based on a microcomputer, failure diagnosis of controlled parts and control circuits is performed by the electronic circuit such as the microcomputer, and the electronic circuit itself determines whether the electronic circuit such as the microcomputer is good or not. A self-diagnosis device for air conditioners that is characterized by the following: 2) Self-diagnosis #r production of an air conditioner according to claim 1, characterized in that the diagnostic program is included in the main routine of the microcomputer program and operates while constantly checking L. 3) Check whether the contents of the output port are reliably output.
A self-diagnosis device for an air conditioner according to claim 1, wherein the air conditioner self-diagnosis device performs failure diagnosis by returning the input/abort to check for coincidence or mismatch.
JP57090155A 1982-05-27 1982-05-27 Self-diagnosing device for air conditioner Pending JPS58208532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57090155A JPS58208532A (en) 1982-05-27 1982-05-27 Self-diagnosing device for air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57090155A JPS58208532A (en) 1982-05-27 1982-05-27 Self-diagnosing device for air conditioner

Publications (1)

Publication Number Publication Date
JPS58208532A true JPS58208532A (en) 1983-12-05

Family

ID=13990599

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57090155A Pending JPS58208532A (en) 1982-05-27 1982-05-27 Self-diagnosing device for air conditioner

Country Status (1)

Country Link
JP (1) JPS58208532A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60228834A (en) * 1984-04-06 1985-11-14 キヤリア・コーポレイシヨン Testing method of electronic type control system of refrigeration unit from test panel at site
JPH01136838U (en) * 1988-03-14 1989-09-19
JPH0289239U (en) * 1988-12-27 1990-07-16
JPH09126604A (en) * 1995-10-31 1997-05-16 Mitsubishi Electric Corp Controller for air conditioner
ES2157713A1 (en) * 1997-03-12 2001-08-16 Samsung Electronics Co Ltd Device to verify the operation of an external unit of an air conditioner

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60228834A (en) * 1984-04-06 1985-11-14 キヤリア・コーポレイシヨン Testing method of electronic type control system of refrigeration unit from test panel at site
JPH01136838U (en) * 1988-03-14 1989-09-19
JPH0289239U (en) * 1988-12-27 1990-07-16
JPH09126604A (en) * 1995-10-31 1997-05-16 Mitsubishi Electric Corp Controller for air conditioner
ES2157713A1 (en) * 1997-03-12 2001-08-16 Samsung Electronics Co Ltd Device to verify the operation of an external unit of an air conditioner

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