JPS63200593U

JPS63200593U -

Info

Publication number: JPS63200593U
Application number: JP9051187U
Authority: JP
Priority date: 1987-06-12
Filing date: 1987-06-12
Publication date: 1988-12-23
Anticipated expiration: 2002-06-12
Also published as: JPH0520781Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す回路図、第２
図は本考案の一実施例を示す要部の回路図である
。Ｈ−１Ｍ……高速用電動機、Ｌ−１Ｍ……微速
用電動機、ＭＣ１〜６……電磁接触器、ＣＡ……
巻上指令用の接点、ＣＢ…巻下ろし指令用の接点
、ＣＣ……高速指令用の接点、Ｒｈ……高速指令
用のリレー、Ｒｈ１，Ｒｈ２……リレーＲｈの常
開接点、ＭＣ１ｂ，ＭＣ２ｂ……ＭＣ１１，ＭＣ
２１の常閉接点、ＭＣ１１，ＭＣ２１，ＭＣ３１
，ＭＣ４１……リレー。 Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a circuit diagram of a main part showing an embodiment of the present invention. H-1M...High-speed motor, L-1M...Low-speed motor, MC1-6...Magnetic contactor, CA...
Contact for hoisting command, CB... Contact for unloading command, CC... Contact for high speed command, Rh... Relay for high speed command, Rh1, Rh2... Normally open contact of relay Rh, MC1b, MC2b... ...MC11, MC
21 normally closed contacts, MC11, MC21, MC31
, MC41...Relay.

Claims

[Scope of utility model registration request]

A high-speed motor that performs hoisting and lowering at high speed, electromagnetic contactors MC1 and MC2 that switch this high-speed motor to hoisting or lowering operation, a slow-speed motor that performs hoisting or lowering at a very low speed, and this slow-speed motor Electromagnetic contactor M that switches to hoisting or lowering operation
C3, MC4, high-speed and slow-speed relays MC11, MC31 that open and close the high-speed and slow-speed winding magnetic contactors MC1 and MC3, and open and close the high-speed and slow-speed winding magnetic contactors MC2 and MC4. High speed and low speed relay MC21,
MC41; and a wireless receiving unit having contacts for wirelessly receiving a remote control signal and selectively connecting a power source to each of the relays MC11 to MC41; A hoisting command contact CA that is turned on by a command signal, a lowering command contact CB that is turned on by a lowering command signal, and a high speed command contact CC that is turned on by a high speed command are provided, and this shift command contact CC is normally open. Contact Rh1,
Connect the high-speed command relay Rh having Rh2,
The normally closed contact MC1b of the relay MC11 for high speed hoisting and the relay MC31 for low speed hoisting connected in series are connected to the hoisting contact CA, and the normally open contact Rh1 and the high speed hoisting contact are connected in parallel to this series circuit. Connect relay MC11 for lowering, and connect contact C for lowering.
Relay MC2 for high-speed lowering is directly connected to B.
1 normally closed contact MC2b and slow speed relay MC41
At the same time, the normally open contact Rh2 and the relay MC21 for high-speed lowering are connected in parallel with this series circuit, and the high-speed command is issued on the condition that the hoisting command contact CA and the lowering command contact CB are on. A hoist with low speed, characterized in that when relay Rh for high speed is activated, relay MC11 or MC21 for high speed is activated.