保證電機(jī)控制柜中的任何機(jī)器設(shè)備接地裝置優(yōu)良，應(yīng)用短和粗的接地聯(lián)接到公共性接地址或接地裝置銅排上。聯(lián)接到變頻調(diào)速器的一切控制系統(tǒng)(例如一臺(tái)plc)要與其說共地，一樣也需要應(yīng)用短和粗的輸電線接地裝置。一般選用平扁電導(dǎo)體(例如金屬絲網(wǎng))，以其在高頻率時(shí)特性阻抗較低。

Ensure that any machine equipment in the motor control cabinet has a good grounding device, and use short and thick grounding connections to the common grounding address or copper bar of the grounding device. All control systems connected to frequency converters (such as a PLC) need to use short and thick transmission line grounding devices, just as they need to be grounded together. Generally, flat electrical conductors (such as metal wire mesh) are chosen due to their lower characteristic impedance at high frequencies.

電機(jī)控制柜低電壓模塊，電磁閥，交流接觸器應(yīng)用斷路器進(jìn)行維護(hù)；當(dāng)變頻調(diào)速器到馬達(dá)的連線超出100m時(shí)，當(dāng)變頻調(diào)速器供開關(guān)電源容積超過600kw/a或供電系統(tǒng)開關(guān)電源容積超過變頻調(diào)速器容積的10倍時(shí)，提議增加鍵入輸出電抗器。

Low voltage modules, solenoid valves, and AC contactors in the motor control cabinet should be maintained using circuit breakers; When the connection between the frequency converter and the motor exceeds 100m, and when the volume of the switching power supply provided by the frequency converter exceeds 600kw/a or the volume of the power supply system's switching power supply exceeds 10 times the volume of the frequency converter, it is proposed to increase the input output reactor.

保證電機(jī)控制柜中的交流接觸器有磁吹作用，直流接觸器選用r-c抑制器，直流接觸器采用“齒輪”二極管，裝進(jìn)繞阻中。選用氧化鋅壓敏電阻抑制器也是很合理的。

Ensure that the AC contactor in the motor control cabinet has a magnetic blowing effect. The DC contactor uses an R-C suppressor, and the DC contactor uses a "gear" diode, which is installed in the winding resistor. It is also reasonable to choose a zinc oxide varistor suppressor.

假如機(jī)器設(shè)備運(yùn)作在一個(gè)對噪音比較敏感的條件中，可以選用過濾器減少輻射源影響。與此同時(shí)為了更好地做到較好的實(shí)際效果，保證過濾器與組裝板中間應(yīng)該有較好的觸碰。

If the machine equipment operates under conditions that are sensitive to noise, filters can be selected to reduce the impact of radiation sources. At the same time, in order to achieve better practical results, there should be good contact between the filter and the assembly board.

電動(dòng)機(jī)線纜應(yīng)與其他變頻電纜分離布線，其較小間距為500mm。與此同時(shí)應(yīng)防止電動(dòng)機(jī)電纜線與變頻電纜遠(yuǎn)距離平行面布線。假如變頻電纜和主機(jī)電源電纜線交叉式，應(yīng)盡量使他們按90°角交叉式。與此同時(shí)務(wù)必用適合的卡子將電動(dòng)機(jī)電纜線和變頻電纜的屏弊層固定不動(dòng)到組裝板上。

The motor cables should be separated from other variable frequency cables for wiring, with a smaller spacing of 500mm. At the same time, it is necessary to prevent the long-distance parallel wiring of motor cables and frequency conversion cables. If the frequency conversion cable and the host power cable are crossed, they should be crossed at a 90 ° angle as much as possible. At the same time, it is necessary to use suitable clips to fix the shielding layer of the motor cable and variable frequency cable onto the assembly board.

為了更好地合理的抑止無線電波的覆蓋和傳輸，變頻調(diào)速器的電動(dòng)機(jī)電纜線務(wù)必選用屏蔽雙絞線，屏蔽掉層的電導(dǎo)率務(wù)必少為每相輸電線芯的電導(dǎo)率的1/10。

In order to better and reasonably suppress the coverage and transmission of radio waves, shielded twisted pair cables must be selected for the motor cables of the frequency converter. The conductivity of the shielded layer must be at least 1/10 of the conductivity of each phase of the transmission line core.

電機(jī)控制柜應(yīng)各自設(shè)定零線排組及保護(hù)區(qū)線排組（pe）。接地裝置排組和pe導(dǎo)電性排務(wù)必收到承重梁上(銅排到銅排連接)。他們需要在電纜線旋蓋處正對著的周邊部位。接地裝置排組附加還需要根據(jù)另一個(gè)的電纜線與維護(hù)電源電路(接地裝置電排)聯(lián)接。屏蔽掉系統(tǒng)總線用以保證每個(gè)電纜線的屏蔽掉聯(lián)接靠譜，它根據(jù)一個(gè)承重梁完成大規(guī)模的金屬材料到金屬連接。

The motor control cabinet should each be equipped with a zero line busbar group and a protection zone busbar group (PE). The grounding device and PE conductive busbar must be connected to the load-bearing beam (copper bar to copper bar connection). They need to face the surrounding area directly at the cable cap. The additional grounding device bank also needs to be connected to the maintenance power circuit (grounding device bank) based on another cable line. Shielding the system bus is used to ensure reliable shielding and connection of each cable line. It completes large-scale metal to metal connections based on a load-bearing beam.

不可以將配有顯示屏的實(shí)際操作面板安裝在挨近電纜線和含有電感線圈的機(jī)器設(shè)備邊上，例如開關(guān)電源電纜線，交流接觸器，電磁閥，磁感線閥，變電器這些，由于他們可以形成較強(qiáng)的電磁場，危害儀表設(shè)備的測量精度。

It is not allowed to install the actual operation panel equipped with a display screen near the power cables and machine equipment containing inductive coils, such as switch power cables, AC contactors, solenoid valves, magnetic induction line valves, transformers, etc., as they can form strong electromagnetic fields and endanger the measurement accuracy of instrument equipment.

輸出功率構(gòu)件(變電器，推動(dòng)構(gòu)件，負(fù)荷輸出功率開關(guān)電源這些)與控制系統(tǒng)(電磁閥操縱一部分，程序控制器)務(wù)必要單獨(dú)組裝。可是并不適合用以輸出功率構(gòu)件與控制系統(tǒng)設(shè)計(jì)方案為一體的商品，變頻調(diào)速器和過濾器的塑料外殼，都應(yīng)當(dāng)用低電阻器與電控柜聯(lián)接，以減小高頻率一瞬間電流量的沖擊性。理想化的情形是將控制模塊組裝到一個(gè)導(dǎo)電性優(yōu)良，灰黑色的金屬材料板材上，并將金屬組裝到一個(gè)大的金屬材料臺(tái)表面。

The output power components (transformer, propulsion components, load output power switch power supply, etc.) and the control system (electromagnetic valve control part, program controller) must be assembled separately. However, it is not suitable for products that integrate output power components and control system design schemes. The plastic casings of variable frequency governors and filters should be connected to the electrical control cabinet with low resistors to reduce the impact of high-frequency instantaneous current. The ideal scenario is to assemble the control module onto a conductive, gray black metal material sheet, and assemble the metal onto a large metal material table surface.

設(shè)計(jì)方案電機(jī)控制柜體時(shí)要留意emc的地區(qū)標(biāo)準(zhǔn)，把不一樣的機(jī)器設(shè)備整體規(guī)劃在不一樣的地域中。每一個(gè)地區(qū)對環(huán)境噪聲的發(fā)送和抗干擾性度有不一樣的規(guī)定。地區(qū)在區(qū)域上較實(shí)用金屬材料殼或在柜身體內(nèi)用接地裝置防護(hù)板隔離。而且考慮到熱值，電機(jī)控制柜的風(fēng)管要制定有效，排風(fēng)系統(tǒng)順暢，防止在柜里產(chǎn)生渦旋，在確定的地方產(chǎn)生塵土沉積。風(fēng)機(jī)一般安裝在挨近通風(fēng)口處，送風(fēng)風(fēng)機(jī)安裝在下邊，進(jìn)風(fēng)口風(fēng)機(jī)安裝在箱體的上端。

When designing the motor control cabinet, attention should be paid to the regional standards of EMC, and different machinery and equipment should be planned as a whole in different regions. Each region has different regulations on the transmission and anti-interference level of environmental noise. Metal material shells are more practical in the region, or grounding devices and protective plates are used to isolate the cabinet body. Moreover, considering the calorific value, the air ducts of the motor control cabinet should be effectively designed, and the exhaust system should be smooth to prevent vortices and dust deposition in the cabinet at designated locations. The fan is generally installed near the ventilation opening, the supply fan is installed at the bottom, and the inlet fan is installed at the upper end of the box.

依據(jù)控制箱內(nèi)設(shè)施的防水等級(jí)，必須考慮到控制箱防污及其防水作用，一般應(yīng)用的設(shè)施主要是為：空調(diào)，風(fēng)機(jī)，換熱器，抗冷疑電加熱器。與此同時(shí)依據(jù)箱體的多少適宜的選用不一樣效率的機(jī)器設(shè)備。有關(guān)風(fēng)機(jī)的挑選，關(guān)鍵考慮到柜里正常的操作溫度，柜外較高工作溫度，求取一個(gè)溫度差，風(fēng)機(jī)的通氣速度，估計(jì)出柜里氣體容積。已經(jīng)知道三個(gè)數(shù)據(jù)信息：溫度差，通氣速度，氣體容積后，求取柜里氣體拆換一次的時(shí)長，隨后根據(jù)溫度差測算求取具體要的通氣速度。進(jìn)而挑選具體要的風(fēng)機(jī)。由于一般晚間，環(huán)境溫度降低，故會(huì)造成凝結(jié)水，依附于在柜里電路板上，因此要選取相對應(yīng)的抗冷疑電加熱器以保證柜里環(huán)境溫度。

According to the waterproof level of the facilities inside the control box, it is necessary to consider the anti fouling and waterproof function of the control box. Generally, the facilities used are: central air conditioning, fans, heat exchangers, and anti cooling electric heaters. At the same time, different efficiency machines and equipment should be selected according to the number of boxes. Regarding the selection of fans, the key consideration is the normal operating temperature inside the cabinet and the higher working temperature outside the cabinet. Calculate a temperature difference, the ventilation speed of the fan, and estimate the gas volume inside the cabinet. After knowing three data information: temperature difference, ventilation speed, and gas volume, calculate the duration of gas replacement in the cabinet, and then calculate the specific ventilation speed based on the temperature difference. Then select the specific fan you want. Due to the general decrease in ambient temperature at night, condensation water may be generated and attached to the circuit board inside the cabinet. Therefore, corresponding anti cold electric heaters should be selected to ensure the ambient temperature inside the cabinet.

變頻調(diào)速器連接的主要規(guī)定變頻調(diào)速器不錯(cuò)組裝在控制箱內(nèi)的中間，變頻調(diào)速器要豎直組裝，上方和下方要防止很有可能阻攔排風(fēng)系統(tǒng)、送風(fēng)的大元器件；變頻調(diào)速器上、下邊邊沿間距，電機(jī)控制柜頂端、底端間距，或是擋板和務(wù)必安裝使用的大元器件的較小間隔，都應(yīng)當(dāng)超過150mm；假如獨(dú)特客戶在運(yùn)用中必須拿掉電腦鍵盤，則變頻調(diào)速器控制面板的電腦鍵盤孔，一定要用膠布嚴(yán)苛密封性或是選用假控制面板更換，避免煙塵大量的進(jìn)到變頻調(diào)速器內(nèi)部結(jié)構(gòu)。

The main regulations for connecting frequency converters are that they should be assembled in the middle of the control box. The frequency converter should be assembled vertically, and the upper and lower parts should prevent large components that may obstruct the exhaust system and air supply; The distance between the upper and lower edges of the frequency converter, the distance between the top and bottom of the motor control cabinet, or the smaller distance between the baffle and the large components that must be installed and used, should all exceed 150mm; If a unique customer must remove the computer keyboard during use, the computer keyboard hole on the frequency converter control panel must be tightly sealed with adhesive tape or replaced with a fake control panel to prevent a large amount of smoke and dust from entering the internal structure of the frequency converter.