轉(zhuǎn)子接觸器不得由任何PLC或類(lèi)似裝置進(jìn)行額外控制。重要的是

ASTAT的DO直接控制轉(zhuǎn)子接觸器，因?yàn)檗D(zhuǎn)子控制是真實(shí)的集成部分

時(shí)間運(yùn)動(dòng)控制，分辨率為3ms。

選擇和應(yīng)用建議：

1） 將接觸器連接到星形，而不是Δ。推薦表基于星形連接。

2） 所有接觸器都被認(rèn)為是最終短路轉(zhuǎn)子接觸器。這補(bǔ)償了由于主晶閘管控制引起的短時(shí)間低磁化和諧波對(duì)觸點(diǎn)的額外加熱。

3） 接觸器的閉合操作是利用轉(zhuǎn)子電流進(jìn)行的。

典型值：轉(zhuǎn)子額定電流的1,0-1,5倍。

4） 接觸器的斷開(kāi)操作是在零轉(zhuǎn)子電流的情況下進(jìn)行的。

5） 安裝溫度為55攝氏度。將低于70攝氏度的值降低。

6） 這些裝置很多時(shí)候是在帶有導(dǎo)電灰塵的鋼結(jié)構(gòu)起重機(jī)的面板上制造的。所有組件

在開(kāi)放式面板中，必須符合EN 60664，污染等級(jí)4。我們建議保留接觸器

通過(guò)將其安裝在尺寸合理的封閉隔間/盒子中進(jìn)行清潔，以避免因其自身?yè)p失而發(fā)熱，

或者使用堅(jiān)固的接觸器。

7） 為了獲得良好的控制財(cái)產(chǎn)，需要一個(gè)斷開(kāi)時(shí)間短、閉合時(shí)間短的接觸器?？紤]涌入線圈電流對(duì)控制變壓器的大小。

8） 觸點(diǎn)的壽命（電壽命）計(jì)算為與

接觸器機(jī)械系統(tǒng)（機(jī)械耐久性）。

9） 對(duì)于Δ連接的電流容量值，將表中的數(shù)字乘以1,5或1,73，具體取決于

制造商建議。但是，Δ-連接增加了電壓應(yīng)力（壽命更短），面板接線工作量更大，電線選擇和擰緊扭矩的質(zhì)量控制措施更嚴(yán)格。

10） 建議將接觸器線圈直接連接到過(guò)程I/O板的DO繼電器，僅用于

引入電流小于等于2A的交流線圈接觸器。對(duì)于較大的交流接觸器和所有直流接觸器，應(yīng)使用pi批繼電器。

使用ABB接觸器，A75是最大尺寸的，帶有110 V AC線圈和EH 145（舊系列）/A 110（新

范圍）最大尺寸，其中230V AC線圈仍然不需要導(dǎo)頻繼電器。

11） 以下時(shí)間適用于交流線圈接觸器。時(shí)間可能與目錄值略有不同，以匹配

ASTAT的實(shí)時(shí)控制系統(tǒng)。

12） 列出的ABB和Schneider的接觸器是用傳統(tǒng)線圈制成的，而

西門(mén)子公司采用電子磁鐵系統(tǒng)。

The rotor contactors should never be additionally controlled by any PLC or similar. It is important that the?

DOs of the ASTAT directly control the rotor contactors, as the rotor control is an integrated part of the real?

time motion control with 3 ms resolution.

Selection and application recommendations:?

1) Connect the contactors in Star, not in Δ. The Recommendation tables are based on Star connection.?

2) All contactors are thermally considered as final short circuit rotor contactors. This compensates for the additional heat up of the contacts from short time low magnetisation and harmonics due to the primary thyristor control.?

3) The closing operation of the contactors is made with rotor current.?

Typical value: 1,0 - 1,5 times rated rotor current.?

4) The opening operation of the contactors is made with zero rotor current.?

5) Installation temperature is 55 degree C. Reduce the values below for 70 degree C.?

6) The installations are many times made in panels in steel work cranes with conductive dust. All components?

in open panels must correspond to EN 60664, Pollution degree 4. We recommend keeping the contactors?

clean by installing these in a closed cubicle / box of reasonable size to avoid heat-up by their own losses,?

or to use robust contactors.?

7) For good control properties a contactor with short opening time is needed, and short closing time is desired. Consider that the inrush coil current sizes the control transformer.?

8) The lifetime of the contacts (electrical endurance) is calculated to be the same as the calculated lifetime of?

the contactors mechanical system (mechanical endurance).?

9) For Δ-connected current capacity values, multiply the figures in the tables by 1,5 or 1,73, depending on the?

manufacturers recommendations. But, Δ-connection increases voltage stress (shorter life), the panelwiring job is larger and the quality control measures of wire selection and tightening torque are stricter.?

10) It is recommended to connect the contactor coil directly to the DO relay of the process I/O-board only for?

AC-coil-contactors with a pull-in current of 2 A or less. For larger AC-contactors and all DC-contactors a pilot relay shall be used.?

Using ABB contactors, A75 is the largest size with 110 V AC coil and EH 145 (old range) / A 110 (new?

range) the largest size with 230 V AC coils still not needing a pilot relay.?

11) The times below are for AC-coil-contactors. The times might differ slightly from catalogues values to match?

the real time control system of ASTAT.?

12) The listed contactors from ABB and Schneider are made with conventional coils, while the contactors from?

Siemens are made with electronic magnet system.