JPH0312866U - - Google Patents
Info
- Publication number
- JPH0312866U JPH0312866U JP7297289U JP7297289U JPH0312866U JP H0312866 U JPH0312866 U JP H0312866U JP 7297289 U JP7297289 U JP 7297289U JP 7297289 U JP7297289 U JP 7297289U JP H0312866 U JPH0312866 U JP H0312866U
- Authority
- JP
- Japan
- Prior art keywords
- pulse width
- fluid pressure
- pilot valve
- detecting
- control device
- 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
Links
- 239000012530 fluid Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例を示す流体圧エレベ
ータ制御装置のブロツク図、第２図は流体圧エレ
ベータの制御系統図、第３図は第１図および第２
図の動作を説明するためのタイムチヤートである
。
１９０……駆動回路故障検出回路、４００……
ソレノイドコイル駆動回路、＃Ｓ……電磁接触器
、ＣＤ１，２，ＣＵ１，２……ソレノイドコイル
。
FIG. 1 is a block diagram of a fluid pressure elevator control device showing an embodiment of the present invention, FIG. 2 is a control system diagram of a fluid pressure elevator, and FIG.
This is a time chart for explaining the operation shown in the figure. 190... Drive circuit failure detection circuit, 400...
Solenoid coil drive circuit, #S...Magnetic contactor, CD1, 2, CU1, 2...Solenoid coil.
Claims (1)
された乗りかごを、流体圧シリンダへ供給、ある
いは、排出する圧力流体の流量制御を行う上昇用
、および、下降用主制御弁と前記主制御弁を制御
するパイロツト流体圧の供給および排出を行うパ
イロツト弁と前記パイロツト弁を所定パルス幅、
所定周波数のパルス列信号によつて駆動すること
により前記乗りかごの速度制御を行う制御装置を
設けた流体圧エレベータにおいて、 前記パルス列信号のパルス幅を検出する手段と
前記パルス幅が所定値を超えた場合に動作する故
障検出回路を設け、前記故障検出回路の動作時に
前記パルス列信号の電源をしや断する手段を設け
たことを特徴とする流体圧エレベータの制御装置
。 ２ 請求項１において、前記パルス列信号の前記
パルス幅を検出する手段は前記パイロツト弁の印
加電圧、前記パイロツト弁の電流、前記パイロツ
ト弁の駆動用スイツチング素子の印加電圧のうち
の少なくとも一つであることを特徴とする流体圧
エレベータの制御装置。 ３ 請求項１において、前記パルス幅が所定値を
超えたことを検出する手段はコンデンサと抵抗の
充放電特性を利用した手段であることを特徴とす
る流体圧エレベータの制御装置。[Claims for Utility Model Registration] 1. For raising and lowering a car connected directly or indirectly to a hydraulic cylinder, for controlling the flow rate of pressure fluid supplied to or discharged from the hydraulic cylinder. The main control valve and the pilot valve that controls the main control valve supply and discharge the pilot fluid pressure and the pilot valve are operated with a predetermined pulse width,
A fluid pressure elevator equipped with a control device for controlling the speed of the car by driving with a pulse train signal of a predetermined frequency, comprising: means for detecting a pulse width of the pulse train signal; and a means for detecting a pulse width of the car when the pulse width exceeds a predetermined value. 1. A control device for a fluid pressure elevator, comprising: a failure detection circuit that operates when the failure detection circuit operates; and means for cutting off power to the pulse train signal when the failure detection circuit operates. 2. In claim 1, the means for detecting the pulse width of the pulse train signal is at least one of the voltage applied to the pilot valve, the current of the pilot valve, and the voltage applied to a switching element for driving the pilot valve. A control device for a fluid pressure elevator, characterized in that: 3. The control device for a fluid pressure elevator according to claim 1, wherein the means for detecting that the pulse width exceeds a predetermined value is means that utilizes charging and discharging characteristics of a capacitor and a resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7297289U JPH0312866U (en) | 1989-06-23 | 1989-06-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7297289U JPH0312866U (en) | 1989-06-23 | 1989-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0312866U true JPH0312866U (en) | 1991-02-08 |
Family
ID=31611388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7297289U Pending JPH0312866U (en) | 1989-06-23 | 1989-06-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0312866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6708455B1 (en) | 1998-12-28 | 2004-03-23 | Housing Kousan Co., Ltd. | Polyhedral fabricated structure and method of constructing the same |
-
1989
- 1989-06-23 JP JP7297289U patent/JPH0312866U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6708455B1 (en) | 1998-12-28 | 2004-03-23 | Housing Kousan Co., Ltd. | Polyhedral fabricated structure and method of constructing the same |
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