以下是JD1A-40S電磁調(diào)速電機控制裝置的產(chǎn)品中英文介紹：

JD1A-40S電磁調(diào)速電機控制裝置是一種用于電磁調(diào)速電動機調(diào)速控制的設(shè)備，可實現(xiàn)恒轉(zhuǎn)矩?zé)o級調(diào)速。它適用于多種工業(yè)場景，如冶金、化工、煤炭、電力、機械、建材、輕工、食品、醫(yī)藥等工礦企業(yè)，在水泥磨機、皮帶輸送機、斗式提升機、破碎機、粉碎機等設(shè)備中，能夠?qū)⑽锪蠌膬α蟼}或漏斗中定量均勻連續(xù)地供給到受料裝置中。

該裝置的工作電源為交流220V，頻率50/60Hz，調(diào)速范圍在電源為50Hz時為1250~125轉(zhuǎn)/分，60Hz時為1500~150轉(zhuǎn)/分。其轉(zhuǎn)速變化率（機械特性硬度）≤2.5％，穩(wěn)速精度≤1％，最大輸出為直流90V，可控制電機功率為15~40KW。測速發(fā)電機為三相中頻，電壓轉(zhuǎn)速比≥2V/100min。

JD1A-40S采用速度調(diào)節(jié)器、移相觸發(fā)器、可控硅整流電路及速度負(fù)反饋等環(huán)節(jié)組成，通過改變輸出方波的占空比使負(fù)載上的平均電流功率從0-100%變化，從而改變電機速度。其外形尺寸為245×150×135mm，開孔尺寸為192×132mm，安裝方式為面板式。

The JD1A-40S electromagnetic speed-regulating motor control device is a piece of equipment used for speed control of electromagnetic speed-regulating motors, capable of achieving stepless speed regulation with constant torque. It is applicable in various industrial scenarios, such as metallurgy, chemical industry, coal, power, machinery, building materials, light industry, food, pharmaceuticals, and other industrial and mining enterprises. In equipment like cement mills, belt conveyors, bucket elevators, crushers, and pulverizers, it can supply materials from storage bins or hoppers to receiving devices in a quantitative, uniform, and continuous manner.

The device operates on an AC 220V power supply with a frequency of 50/60Hz. The speed regulation range is 1250 to 125 revolutions per minute when the power supply is 50Hz, and 1500 to 150 revolutions per minute when it is 60Hz. Its speed variation rate (mechanical characteristic hardness) is ≤2.5％, speed regulation accuracy is ≤1％, maximum output is DC 90V, and it can control motor power of 15 to 40KW. The tachogenerator is three-phase medium frequency with a voltage-speed ratio of ≥2V/100min.

The JD1A-40S is composed of a speed regulator, phase shift trigger, thyristor rectifier circuit, and speed negative feedback. It changes the average current power on the load from 0 to 100% by altering the duty cycle of the output square wave, thereby changing the motor speed. Its dimensions are 245×150×135mm, with an installation opening size of 192×132mm, and it is installed in a panel-mounted manner.