Description
1. 概念
伺服电机,按控制命令的要求、对功率进行放大、变换与调控等处理,使驱动装置输出的力矩、速度和位置控制的非常灵活方便。
由于它的“伺服”性能,因此它就被命名为伺服电机。其功能是将输入的电压控制信号转为轴上输出的角位移和角速度驱动控制对象。
伺服电机一般分为两大类:直流伺服电机、交流伺服电机。
2. 交流伺服电机
2.2工作原理
交流伺服电机内部的转子是永磁铁,驱动器控制的U/V/W三相电形成电磁场,转子在此磁场的作用下转动,同时电机自带的编码器反馈信号给驱动器,驱动器根据反馈值与目标值进行比较,调整转子转动的角度。
交流伺服电机在没有控制电压时,定子内只有励磁绕组产生的脉动磁场,转子静止不动。当有控制电压时,定子内便产生一个旋转磁场,转子沿旋转磁场的方向旋转,在负载恒定的情况下,电动机的转速随控制电压的大小而变化,当控制电压的相位相反时,伺服电动机将反转。
Duroflow Model 4509 Positive Displacement Blower
Bently Nevada Dual Vibration Monitor NIB
Triconex Model 3501 Clean unit
CTC Parker Automation RS Monitor PM1-5E1-XD5 NIB
CTC Parker PowerStation Monitor PM1-5E1-XD5 NIB
Foxboro 130K-N4-PF With Manual unit
Allen Bradley 1336F-BRF75-AA-?EN-GMS1-L4 AC Drive NIB
Velan 4″ Stainless Ball Valve Class 150
Rice Lake Scale Head Weighting System Model IQ+710-2A
Rice Lake Scale Head Weighting System Model IQ+710-2A
Sulzer Bingham 7 Stage Pump Impellers PN01712682 241-7
Gebr.Steimel Type TFL10-160 RDG Rotary Gear Pump
Sigma Industrial Computer Model 625 Washdown Proof Stai
Allen Bradley Size 4 Starter in 2112B MCC Bucket
Hardy Instruments Waversaver Model HI2151/30WC NIB
Allen Bradley Size 3 Starter Model 509-DOD in 2112B MC
Micro Motion Remote Flow Transmitter Model RFT9712 3PNU
Hardy Instruments Waversaver Model HI2151-30 WC Options
Ormec E Series AC Brushless Servodrive Model SAC-E06F2
Allen Bradley Size 4 Starter Model 709-EOB 103 in 2112
Triconex Rack and Power Supply
Mikron Instrument Infrared Temperture Transmitter NIB
Electro Cam Model PS5111-10-P08-C 5000 Series Programma
Ormec Model SAC-E06F2 V2.0b E Series AC Brushless Servo
Reviews
There are no reviews yet.