JPH031602U - - Google Patents
Info
- Publication number
- JPH031602U JPH031602U JP5711389U JP5711389U JPH031602U JP H031602 U JPH031602 U JP H031602U JP 5711389 U JP5711389 U JP 5711389U JP 5711389 U JP5711389 U JP 5711389U JP H031602 U JPH031602 U JP H031602U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- brake
- command
- open
- guided vehicle
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の実施例を示す回路図、第２図
は無人搬送車を示す正面図、第３図は無人搬送車
を示す平面図、第４図は従来の制動回路を示す回
路図である。
図面中、１は無人搬送車、５は駆動モータ、６
はバツテリ、８は制御部、１０は電磁ブレーキ、
２０はキースイツチ、２１，２２はリレー、２３
は電圧検出回路である。
Fig. 1 is a circuit diagram showing an embodiment of the present invention, Fig. 2 is a front view showing an automated guided vehicle, Fig. 3 is a plan view showing the automated guided vehicle, and Fig. 4 is a circuit diagram showing a conventional braking circuit. It is. In the drawing, 1 is an automatic guided vehicle, 5 is a drive motor, and 6 is an automatic guided vehicle.
is the battery, 8 is the control unit, 10 is the electromagnetic brake,
20 is a key switch, 21 and 22 are relays, 23
is a voltage detection circuit.
Claims (1)
を解除する電磁ブレーキを備えた無人搬送車の制
動回路において、 バツテリと電磁ブレーキとをむすぶラインに、
直列に介装された第１のスイツチング素子及び第
２のスイツチング素子と、 電磁ブレーキのブレーキコイルに加わる電圧を
検出する電圧検出回路と、 無人搬送車が作動状態になると第１のスイツチ
ング素子を投入させる指令を出すとともに、ブレ
ーキをかける場合には第２のスイツチング素子を
開放させブレーキを解除する場合には第２のスイ
ツチング素子を投入させる指令を出し、更に第２
のスイツチング素子を開放させる指令を出したに
もかかわらず電圧検出回路で検出した電圧が設定
値よりも大きいときには第１のスイツチング素子
を強制的に開放させる指令を出す制御部と、 を有することを特徴とする無人搬送車の制動回
路。[Scope of claim for utility model registration] In the braking circuit of an automatic guided vehicle equipped with an electromagnetic brake that applies a brake when demagnetized and releases the brake when energized, a line connecting the battery and the electromagnetic brake,
A first switching element and a second switching element are interposed in series, a voltage detection circuit detects the voltage applied to the brake coil of the electromagnetic brake, and the first switching element is turned on when the automatic guided vehicle is in operation. At the same time, a command is issued to open the second switching element when applying the brake, and a command to close the second switching element when releasing the brake.
a control unit that issues a command to forcibly open the first switching element when the voltage detected by the voltage detection circuit is larger than a set value despite issuing a command to open the first switching element; Features of the braking circuit for automated guided vehicles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5711389U JPH031602U (en) | 1989-05-19 | 1989-05-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5711389U JPH031602U (en) | 1989-05-19 | 1989-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH031602U true JPH031602U (en) | 1991-01-09 |
Family
ID=31581532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5711389U Pending JPH031602U (en) | 1989-05-19 | 1989-05-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH031602U (en) |
-
1989
- 1989-05-19 JP JP5711389U patent/JPH031602U/ja active Pending
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