JPS63164398U

JPS63164398U -

Info

Publication number: JPS63164398U
Application number: JP5639987U
Authority: JP
Priority date: 1987-04-14
Filing date: 1987-04-14
Publication date: 1988-10-26

Description

[Brief explanation of drawings]

第１図および第２図はともに本考案の一実施例
を示し、第１図は回路図、第２図は要部説明図、
第３図は従来の制御方式と本考案の制御方式を比
較する速度特性図、第４図、第５図および第６図
は従来の制御方式を示し、第４図はブロツク図、
第５図はインバータのブロツク図、第６図は操作
箱の斜視図である。１……インバータ、２……誘導電動機、６，７
……押ボタンスイツチ付ボリユーム、８……押ボ
タンユニツト。 1 and 2 both show one embodiment of the present invention, FIG. 1 is a circuit diagram, FIG. 2 is an explanatory diagram of main parts,
Fig. 3 is a speed characteristic diagram comparing the conventional control system and the control system of the present invention; Figs. 4, 5, and 6 show the conventional control system; Fig. 4 is a block diagram;
FIG. 5 is a block diagram of the inverter, and FIG. 6 is a perspective view of the operation box. 1...Inverter, 2...Induction motor, 6,7
...Volume with push button switch, 8...Push button unit.

Claims

[Claims for Utility Model Registration] In a control circuit for an electric hoist whose driving source is a motor controlled by an inverter, a variable resistor with a switch that integrates an on-off switch and a variable resistor; and the variable resistor with a switch. 1. A control circuit for an electric hoist, comprising: an inverter that starts, stops, and controls the speed of a hoisting and lowering motor based on an output signal from the hoist.