低壓抽屜柜電路原理圖構(gòu)成
Composition of circuit schematic diagram of low voltage drawer cabinet
1、主電源電路一部分：便是開關(guān)電源到電機(jī)大電流量根據(jù)的途徑。關(guān)鍵由隔離開關(guān)（FS）、接觸器主接觸點(diǎn)（KM）、熱繼器（FR）或綜合保護(hù)器（KH）等電氣元器件構(gòu)成。
1. Part of the main power supply circuit: it is the way from the switching power supply to the large current flow of the motor. The key is composed of electrical components such as disconnector (FS), contactor main contact (km), thermal relay (FR) or integrated protector (KH).
2、控制回路一部分：便是對(duì)主電源電路電流量接通、斷開的操縱。由接觸器的電磁線圈及輔助觸點(diǎn)、汽車?yán)^電器的電磁線圈及接觸點(diǎn)、熱繼器或綜合保護(hù)器輔助觸點(diǎn)、切換開關(guān)、按鍵、信號(hào)指示燈、速率電源開關(guān)、拉繩開關(guān)、跑偏開關(guān)等元器件構(gòu)成。
2. Part of the control circuit: it is the operation of turning on and off the current of the main power circuit. It is composed of electromagnetic coil and auxiliary contact of contactor, electromagnetic coil and contact point of automobile relay, auxiliary contact of thermal relay or integrated protector, change-over switch, key, signal indicator, speed power switch, pull cord switch, deviation switch and other components.
Operating principle of MNS low voltage drawer cabinet:
先抽屜柜推及時(shí)，抽屜柜上隔離開關(guān)實(shí)際操作搖桿轉(zhuǎn)到實(shí)驗(yàn)部位，隔離開關(guān)不接通，電源開關(guān)SP1合閉，PS2斷開，指示燈亮（HW），當(dāng)場(chǎng)配電箱切換開關(guān)轉(zhuǎn)到中控部位（R），KA1得電。
First, the drawer cabinet shall be pushed in time. The actual operating rocker of the isolating switch on the drawer cabinet shall be turned to the experimental position. The isolating switch is not connected, the power switch Sp1 is closed, PS2 is disconnected, the indicator light is on (HW), the switching switch of the distribution box on the spot shall be turned to the central control position (R), and KA1 shall be powered on.
KA1延時(shí)繼電器接通，中控備妥，中控傳出指令汽車?yán)^電器K1得電（一直得電），K1延時(shí)繼電器合閉，接觸器KM得電接通，接觸器輔助觸點(diǎn)接通，回復(fù)數(shù)據(jù)信號(hào)傳到中控。
The KA1 time delay relay is connected, the central control is ready, the central control sends out a command that the automobile relay K1 is powered on (always powered on), the K1 time delay relay is closed, the contactor km is powered on, the contactor auxiliary contact is connected, and the reply data signal is transmitted to the central control.
進(jìn)行實(shí)驗(yàn)運(yùn)行工作中；中控傳出終止指令，K1跳停斷開，從而接觸器跳停斷開，進(jìn)行停止工作。
During experimental operation; When the central control sends out the termination command, K1 trips and disconnects, so that the contactor trips and disconnects to stop working.
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If you are interested in our low-voltage drawer cabinet or want to know more details, please call the service hotline or technical telephone directly. We look forward to your call and cooperation! You can also follow our website www.tongyuhengcheng COM, to view the relevant information!
TEL:0531-69922480 18866409905
EMAIL:jntyhc@163.com 
公司地址：濟(jì)南市槐蔭區(qū)經(jīng)十西路3788號(hào)
備案號(hào)：魯ICP備09028695號(hào)-3
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