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Turbolader 53039880207
Turbocharger BMW 320 d E46
6ES7416-3XR05-0AB0
6ES7318-3EL00-0AB0
140CRP81100
伺服电机与步进电机的性能比较
步进电机作为一种开环控制的系统,和现代数字控制技术有着本质的联系。在目前国内的数字控制系统中,步进电机的应用十分广泛。随着全数字式交流伺服系统的出现,交流伺服电机也越来越多地应用于数字控制系统中。为了适应数字控制的发展趋势,运动控制系统中大多采用步进电机或全数字式交流伺服电机作为执行电动机。虽然两者在控制方式上相似(脉冲串和方向信号),但在使用性能和应用场合上存在着较大的差异。现就二者的使用性能作一比较。
一、控制精度不同
两相混合式步进电机步距角一般为 1.8°、0.9°,五相混合式步进电机步距角一般为0.72 °、0.36°。也有一些高性能的步进电机通过细分后步距角更小。如三洋公司(SANYO DENKI)生产的二相混合式步进电机其步距角可通过拨码开关设置为1.8°、0.9°、0.72°、0.36°、0.18°、0.09°、0.072°、0.036°,兼容了两相和五相混合式步进电机的步距角。
交流伺服电机的控制精度由电机轴后端的旋转编码器保证。以三洋全数字式交流伺服电机为例,对于带标准2000线编码器的电机而言,由于驱动器内部采用了四倍频技术,其脉冲当量为360°/8000=0.045°。对于带17位编码器的电机而言,驱动器每接收131072个脉冲电机转一圈,即其脉冲当量为360°/131072=0.0027466°,是步距角为1.8°的步进电机的脉冲当量的1/655。
二、低频特性不同
步进电机在低速时易出现低频振动现象。振动频率与负载情况和驱动器性能有关,一般认为振动频率为电机空载起跳频率的一半。这种由步进电机的工作原理所决定的低频振动现象对于机器的正常运转非常不利。当步进电机工作在低速时,一般应采用阻尼技术来克服低频振动现象,比如在电机上加阻尼器,或驱动器上采用细分技术等。
交流伺服电机运转非常平稳,即使在低速时也不会出现振动现象。交流伺服系统具有共振抑制功能,可涵盖机械的刚性不足,并且系统内部具有频率解析机能(FFT),可检测出机械的共振点,便于系统调整。
三、矩频特性不同
步进电机的输出力矩随转速升高而下降,且在较高转速时会急剧下降,所以其最高工作转速一般在300~600RPM。交流伺服电机为恒力矩输出,即在其额定转速(一般为2000RPM或3000RPM)以内,都能输出额定转矩,在额定转速以上为恒功率输出。
四、过载能力不同
步进电机一般不具有过载能力。交流伺服电机具有较强的过载能力。以三洋交流伺服系统为例,它具有速度过载和转矩过载能力。其最大转矩为额定转矩的二到三倍,可用于克服惯性负载在启动瞬间的惯性力矩。步进电机因为没有这种过载能力,在选型时为了克服这种惯性力矩,往往需要选取较大转矩的电机,而机器在正常工作期间又不需要那么大的转矩,便出现了力矩浪费的现象。
五、运行性能不同
步进电机的控制为开环控制,启动频率过高或负载过大易出现丢步或堵转的现象,停止时转速过高易出现过冲的现象,所以为保证其控制精度,应处理好升、降速问题。交流伺服驱动系统为闭环控制,驱动器可直接对电机编码器反馈信号进行采样,内部构成位置环和速度环,一般不会出现步进电机的丢步或过冲的现象,控制性能更为可靠。
六、速度响应性能不同
步进电机从静止加速到工作转速(一般为每分钟几百转)需要200~400毫秒。交流伺服系统的加速性能较好,以山洋400W交流伺服电机为例,从静止加速到其额定转速3000RPM仅需几毫秒,可用于要求快速启停的控制场合。
综上所述,交流伺服系统在许多性能方面都优于步进电机。但在一些要求不高的场合也经常用步进电机来做执行电动机。所以,在控制系统的设计过程中要综合考虑控制要求、成本等多方面的因素,选用适当的控制电机。
DELTAV DC9430X1-CA2 44B2733X022 ALARM INTERFACE UNIT
DELTAV KJ1501X1-BB1 12P0678X022 SYSTEM PASSTHROUGH POWER SUPPLY 12/12VDC (DC/DC)
DELTAV KJ1501X1-BC1 VE5008 12P2186X012 System Dual DC Power Supply (DC/DC)
DELTAV KJ1700X1-BA1 VE6006 12P1710X012 Media Converter
DELTAV KJ2002X1-CA1 12P1509X042 M5 Controller
DELTAV KJ2002X1-CA1 VE3004 12P1509X092 M5+ Controller
DELTAV KJ3001X1-BA1 VE4001S2T1 12P0549X112 DI 8-Channel 24 VDC Isolated Card
DELTAV KJ3001X1-BB1 VE4001S2T2 12P0550X142 DI 8-Channel 24 VDC Dry Contact Card
DELTAV KJ3001X1-BC1 12P0551X132 VE4001S3T1B1 DI 120VAC ISOLATED
DELTAV KJ3001X1-BG1 VE4002S1T1 12P0557X152 DO 8-Channel 24 VDC Isolated Card
DELTAV KJ3001X1-BJ1 VE4002S1T2B2 12P0555X122 DO 8-Ch 24 VDC High Side Card 6AMP/CARD 1.5AMP/CH
DELTAV KJ3001X1-BJ1 VE4002S1T2B2 12P0555X122 DO 8-Ch 24 VDC High Side Card 6AMP/CARD 1.5AMP/CHd
DELTAV KJ3002X1-BB1 12P0683X072 ANALOG OUTPUT 4-20mA
DELTAV KJ3002X1-BA1 VE4003S2 12P0680X122 Analog Input 8 Channel 4-20mA HART Card
DELTAV KJ3002X1-BC1 VE4003S1B2 12P0681X092 Analog Input Module Final Assy 4-20mA Card
DELTAV KJ3002X1-BE1 12P0682X052 VE4005S2B2 Analog Output 8-Channel 4-20mA HART Card
DELTAV KJ3002X1-BF1 VE4003S6B1 12P1732X012 RTD Card
DELTAV KJ3002X1-BG2 VE4003S5B1 12P1731X032 Thermocouple mV Card
DELTAV KJ3003X1-BA1 12P0914X062 VE4009 Serial Interface Card
DELTAV KJ3222X1-BA1 12P2532X072 VE4003S2B1 ANALOG INPUT 8 Ch 4-20mA HART SERIES 2
DELTAV KJ4001X1-BA2 VE3051CO 12P1562X032 Power Controller 2 Wide Carrier
DELTAV KJ4001X1-BE1 VE4050S2K1C1 12P0818X052 8 Wide I/O Carrier with Shield Bar
DELTAV KJ4001X1-CA1 12P0823X052 I/O TERMINAL BLOCK
DELTAV KJ4001X1-CA1 12P0823X052 I/O TERMINAL BLOCK
DELTAV KJ4001X1-CB1 12P0625X052 Fused I/O Terminal Block
DELTAV KJ4001X1-CB1 12P0625X062 Fused I/O Terminal Block
DELTAV KJ4001X1-CC1 12P0733X032 4 Wire TX Terminal BlockD
DELTAV KJ4001X1-CH1 12P1811X012 RTD Terminal Block
DELTAV KJ4001X1-HA1 12P0949X022 Local Bus Extender Cable
DELTAV KJ4002X1-BB1 12P1728X042 VE4055S2C0 Right 8 Wide Vertical Carrier
DELTAV KJ4002X1-BA1 12P1727X042 VE4055S1C0 Left 8 Wide Vertical Carrier
DELTAV KJ4010X1-BF1 12P0831X042 Local Bus Left Extension
DELTAV KJ4010X1-BG1 12P0830X042 Local Bus Right Extension
DELTAV KJ4010X1-BG1 12P0830X072 LOCAL BUS RIGHT EXTENDER
DELTAV KJ4010X1-BF1 12P0831X062 LOCAL BUS LEFT EXTENDER
DELTAV KJ4010X1-BE1 12P0631X012 CABLE
DELTAV 12P0631X012 DELTAV PARALLEL CORD
DELTAV KJ4001X1-HA1 12P0949X022 LOCAL BUS EXTENDER CABLE
DELTAV KJ4002X1-BF2 12P3866X012 DELTAV BOTTOM EXTENDER CABLE
DELTAV KJ4002X1-BE1 12P4048X012 DELTAV TOP EXTENDER CABLE
DELTAV KJ4001X1-GB1 12P0831X022 LOCAL BUS LEFT EXTENDER
DELTAV KJ4001X1-CA1 12P0623X022 I/O TERMINAL BLOCK
DELTAV KJ3003X1-EA1 12P0921X012 SER. INT. TERMINAL BLOCK
DELTAV 8605-FT-TC VER: MT02 FIELD TERM. THERMOCOUPLE
DELTAV KJ4001X1-BB1 12P0619X012 8 WIDE I/O CARRIER
DELTAV KJ4001X1-BA1 12P0679X012 2 SLOT CARRIER
DELTAV KJ4001X1-BA2 12P1562X012 2 WIDE CARRIER W/ RED
DELTAV 8105-TI-TC VER:MT01 4-CHANNEL THC/MV INPUT
DELTAV KJ3002X1-BA1 12P0680X122 AI MODULE FINAL ASSY
DELTAV KJ3001X1-BB1 12P0550X112 DI 24VDC DRY CONTACT
DELTAV KJ3001X1-BC1 12P0550X112 DI 24VDC DRY CONTACT
DELTAV KJ3001X1-BG1 12P0557X032 DO 24VDC ISOLATED
DELTAV KJ3001X1-BH1 12P0558X102 DO 120-230 VAC ISOLATED
DELTAV KJ3002X1-BG2 12P1731X062 THERMOCOUPLE mV
DELTAV KJ2003X1-BA2 12P2093X112 CONTROLLER MD
DELTAV KJ2003X1-BA2 12P2093X112 CONTROLLER MD
DELTAV KJ1501X1-BB1 12P0678X012 SYSTEM POWER SUPPLY (DC/DC)
DELTAV 8910-PS-DC SYSTEM POWER SUPPLY 24VDC
DELTAV KJ2003X1-BA2 12P2093X072 CONTROLLER MD
DELTAV KJ2003X1-BA2 12P2093X072 CONTROLLER MD
DELTAV KJ3001X1-BH1 12P0558X112 DO MODULE VAC ISOLATED
DELTAV KJ4001XBA2 2 WIDE CARRIER
MERSON DeltaV KJ1501X1-BA2
DeltaV KJ1501X1-BB1 12P0678X022 System Passthrough Power Supply 12/12VDC(DC/DC)
DeltaV KJ1501X1-BC1
DeltaV KJ1501X1-BC2 12P2186X042 System Dual DC Power Supply (DC/DC)
DeltaV KJ1501X1-BC3 12P3935X022 System Power Supply(DC/DC)
DeltaV KJ1501X1-BK1
DeltaV KJ1502X1-BA2 55P0518X032 BULK AC TO 24 VDC POWER SUPPLY
DeltaV KJ1611X1-EF1 Controller MODULE
DeltaV KJ1700X1-BA1 12P1710X012 Media Converter
DeltaV KJ1710X1-BA1
DeltaV KJ1740X1-BA1 Four Port Fiber Switch
DeltaV KJ2001X1-BA1 M2 Controller
DeltaV KJ2002X1-BA1
DeltaV KJ2002X1-CA1 12P1509X092 M5+ Controller
DeltaV KJ2003X1-BA2 12P2093X072 MD Controller
DeltaV KJ2003X1-BB1
DeltaV KJ2004X1-BA1 Remote Interface Unit
DeltaV KJ2005X1-BA1
DeltaV KJ2101X1-BA1 12P2690X012 PROVOX M3+ CONT CAR
DeltaV KJ2101X1-CA1 12P2702X012 PROVOX M3 CONT CAR
DeltaV KJ2201X1-BA1
DeltaV KJ2201X1-HA1 Simplex SLS Terminal Block
DeltaV KJ2201X1-JA1 Redundant SLS Terminal Block
DeltaV KJ2221X1-BA1
DeltaV KJ2221X1-EA1 SISNet Repeater Carrier
DeltaV KJ2222X1-BA1
DeltaV KJ2231X1-BA1 Auxiliary Relay ETA-Direct Module
DeltaV KJ2231X1-BB1 Auxiliary Relay DTA-Direct Module
DeltaV KJ2231X1-BC1
DeltaV KJ2231X1-EA1
DeltaV KJ2231X1-EB1 Voltage Monitor
DeltaV KJ2231X1-EC1 End of Line Resistance Module
DeltaV KJ2231X1-ED1
DeltaV KJ2231X1-EE1 SIS Current Limiter
DeltaV KJ3001X1-BA1 12P0549X112 DI 32-Channel 24 VDC Isolated Card
DeltaV KJ3001X1-BB1
DeltaV KJ3001X1-BC1 12P0551X132 DI(8 CH)120 VAClsolatd
DeltaV KJ3001X1-BD1 12P0552X132 DISCRETE IN120 VACDry Contact
DeltaV KJ3001X1-BG1
DeltaV KJ3001X1-BH1 12P0558X152 DO(8-CH)120/230 VAC Isolated
DeltaV KJ3001X1-BJ1 12P0555X152 DO (8-Ch) 24 VDC High Side Card
DeltaV KJ3001X1-BJ1 12P0555X122 DO 8-Ch 24 VDC High Side Card
DeltaV KJ3001X1-BK1
DeltaV KJ3001X1-CA1 12P1980X062 DI32 CH24 VDC,Dry Contact
DeltaV KJ3001X1-CB1 12P1985X032 DO 32-Channel 24 VDC High-Side
DeltaV KJ3002X1-BA1
DeltaV KJ3002X1-BB1 12P0683X072 ANALOG OUTPUT 4-20mA
DeltaV KJ3002X1-BC1 12P0681X062 Analog Input Module
Final Assy 4-20mA
DeltaV KJ3002X1-BD1
DeltaV KJ3002X1-BE1 12P0682X042 Analog Output 8-Channel 4-20mA HART Card
DeltaV KJ3002X1-BF1
DeltaV KJ3002X1-BG2 12P1731X032 Thermocouple MV Card
DeltaV KJ3003X1-BA1 Serial Interface Card
DeltaV KJ3003X1-EA1
DeltaV KJ3004X1-BA1 12P1064X122 Fieldbus H1
DeltaV KJ3004X1-EA1 Fieldbus H1 Terminal Block
DeltaV KJ3005X1-BA1
A16B-1200-0030
A16B-1200-0040
A16B-1200-0050
A16B-1200-0090
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