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起動器按常規(guī)操作-中英對照

發(fā)布時(shí)間:2014-8-16      閱讀次數(shù):1379

起動器按常規(guī)操作-中英對照

a、 按原理圖中“雙機(jī)連動時(shí),開關(guān)控制線接線圖”所示,用控制電纜聯(lián)結(jié)兩臺起動器;
b、 對主令起動器,把轉(zhuǎn)換開關(guān)XK4撥到“正常工作”,XK1、XK2、XK3按所需要的遠(yuǎn)、近控方式,在菜單模式中選擇聯(lián)機(jī)主模式,手動模式。
對受令起動器,把鈕子開關(guān)DK1撥到“正常工作”,XK1、XK2、撥到“遠(yuǎn)控”;XK3撥到“近控”;在菜單模式中選擇聯(lián)機(jī)叢機(jī)模式,自動模式。
c、 PLC保護(hù)按所需的低、高速轉(zhuǎn)換方式,選擇“切換時(shí)間為主”;“或切換電流為主”。
d、 當(dāng)雙機(jī)由低速轉(zhuǎn)為高速需延時(shí),可調(diào)整菜單中的延時(shí)時(shí)間,需要同步轉(zhuǎn)換時(shí),把
時(shí)間調(diào)到0秒即可。
6.2.2起動過程
起動器按常規(guī)操作接通電源,按下主令起動器的起動按鈕后:
主令起動器中的JHK先導(dǎo)組件1K-1閉合,通過PLC保護(hù)實(shí)行雙機(jī)切換,進(jìn)而完成兩臺起動器的起動過程,起動以后有相應(yīng)的運(yùn)行顯示。沒起動成功則顯示相應(yīng)的故障。
6.2.3低速運(yùn)行
如果運(yùn)輸機(jī)需低速運(yùn)轉(zhuǎn),把起動器中的菜單中的模式設(shè)置為手動,即可實(shí)現(xiàn)低速拖動。
6.2.4單機(jī)低速點(diǎn)動
在運(yùn)輸機(jī)要緊鏈時(shí),可把起動器中的門上轉(zhuǎn)換開關(guān)SK轉(zhuǎn)向“低速點(diǎn)動”,達(dá)到緊鏈的目的。
6.3電機(jī)保護(hù)
無論是單臺或是兩臺電機(jī)在運(yùn)行中,只要有過載、過流、短路、過壓、欠壓故障,都能使PLC保護(hù)器動作斷開先導(dǎo)電路而停機(jī),分別顯示相應(yīng)的故障狀態(tài)。將故障清除后,可按“復(fù)位”按鈕,然后起動開關(guān)。在起動過程中有一臺起動不成功,兩臺都將停機(jī)。
6.4保護(hù)功能的試驗(yàn)
在菜單中先設(shè)定試驗(yàn)?zāi)J,在起動狀態(tài)下為短路試驗(yàn),在未起動狀態(tài)為漏電試驗(yàn),當(dāng)按下試驗(yàn)按鈕后,有相應(yīng)的故障顯示,說明保護(hù)回路完好。
6.5PLC綜合保護(hù)器的整定:
在初始畫面下顯示如下:
a. Apply control cable connect the two starter in accordance with the schematic diagram of “Wiring Diagram of Switch Controller Line in Case of Double-Motor Synchronizing Drive”;
b. Master starter, adjust the change-over switch XK4 to “normal” condition; choose the on-line main mode or manual mode in the mode of the menu according to the need of XK1 , XK2 , XK3 for far and close control pattern.
Receiver starter, set toggle switch to “normally” condition DK1, XK1 , XK2 to “remote”; XK3 to “close-control” condition. Choose the on-line main mode or manual mode in the mode of the menu
c. PLC protection device may choose “time-switch oriented” or “current-switch oriented” according to need of low or high speed switching pattern..
d. When twin engine machines need a time delay for switching from low speed to high speed pattern. It is applicable to adjust the time delay function listed in menu, while synchronous switching is needed, transfer time to 0 seconds.
6.2.2 Start-up procedure
Switch on starter by conventional methods and push the start-up button of master starter.
Close pilot module 1K-1 in the module JHK of master starter, carry out  two engine switching through the protection of PLC, and then finish the start up course of two starters, there is corresponding operation that displays after start up, and displayed the corresponding malfunction in case of start up failure.
6.2.3 Low speed operation
If the transport machine needs to operate at a low speed, set the manual mode in the starter menu and realize pulling operation at a low speed.
6.2.4 Low speed jog control of single motor
While transport machine chain needs to tighten, set the change-over switch on door of starter SK to “Low speed jog control”, achieve the purpose of the chain tightening.
6.3 Motor protection
No matter the single motor or two motor are in the condition of operation, as long as there is failure as overload, over current, short circuit, overpressure, under voltage occurred, PLC protecting device shall disconnect and shut down the guide circuit, and display the corresponding failure state respectively. After the failure is cleared, press the “restore” button, then turn on the switch. During the course of starting if there was one starter fail to activate, both two motor shall be stopped.
6.4 Tests of protecting function
First establish the test model in the menu, short-circuit test under the condition of starting state, and leakage test under the condition of unstart state, after pushing the testing button, there shall be a corresponding failure information displayed, so as to illustrate that protecting return circuit if perfect.
6.5 The setting of PLC synthesize protecting device:
Initial picture as follows:

2014.8.16

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