12.如何确定步进电机驱动器的直流供电电源?
A.电压的确定
6ES5376-1AA11混合式步进电机驱动器的供电电源电压一般是一个较宽的范围(比如IM483的供电电压为12~48VDC),电源电压通常根据电机的工作转速和响应要求来选择。如果电机工作转速较高或响应要求较快,那么电压取值也高,但注意电源电压的纹波不能超过驱动器的最大输入电压,否则可能损坏驱动器。
B.电流的确定
6ES5376-1AA11 供电电源电流一般根据驱动器的输出相电流I来确定。如果采用线性电源,电源电流一般可取I 的1.1~1.3倍;如果采用开关电源,电源电流一般可取I 的1.5~2.0倍。
13.混合式步进电机驱动器的脱机信号FREE一般在什么情况下使用?
6ES5376-1AA11当脱机信号FREE为低电平时,驱动器输出到电机的电流被切断,电机转子处于自由状态(脱机状态)。在有些自动化设备中,如果在驱动器不断电的情况下要求直接转动电机轴(手动方式),就可以将FREE信号置低,使电机脱机,进行手动操作或调节。手动完成后,再将FREE信号置高,以继续自动控制。
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6ES5376-1AA11
6ES5376-1AA21
6ES5376-1AA31
6ES5377-0AA11
6ES5377-0AA21
6ES5377-0AA32
6ES5377-0AA41
6ES5377-0AB21
6ES5377-0AB31
6ES5377-0AB41
6ES5377-0BA31
6ES5377-0BB41
6ES5380-8MA11
6ES5385-8MA11
6ES5385-8MB11
6ES5390-0UA11
6ES5393-0UA14
6ES5393-0UA15
6ES5396-0UA11
6ES5420-4UA13
6ES5420-4UA14
6ES5420-7LA11
6ES5420-8MA11
6ES5421-8MA12
6ES5422-8MA11
6ES5430-2BA11
6ES5430-4UA13
6ES5430-4UA14
6ES5430-7LA12
6ES5430-8MB11
6ES5430-8MC11
6ES5430-8MD11
6ES5431-2BA11
6ES5431-2CA11
6ES5431-4UA12
6ES5431-7LA11
6ES5431-8FA11
6ES5431-8MA11
6ES5431-8MC11
6ES5431-8MD11
6ES5432-4UA12
6ES5432-7LA11
6ES5433-3BA11
6ES5433-8MA11
6ES5434-4UA12
6ES5434-7LA12
6ES5435-4UA12
6ES5435-7LA11
6ES5435-7LB11
6ES5435-7LC11
6ES5436-4UA12
6ES5436-4UB12
6ES5436-7LA11
6ES5436-7LB11
6ES5436-7LC11
6ES5437-8EA12
6ES5440-8MA11
6ES5440-8MA12
6ES5440-8MA21
6ES5440-8MA22
6ES5441-4UA13
6ES5441-4UA14
6ES5441-7LA11
6ES5441-7LA12
6ES5441-7LA13
6ES5441-8MA11
6ES5450-8FA11
6ES5450-8FA12
6ES5450-8MB11
6ES5450-8MD11
6ES5451-2BA11
6ES5451-2CA11
6ES5451-4UA13
6ES5451-4UA14
DETECTOR HPLC UV975
JDS FITEL SB SERIES FIBER OPTIC SWITCH SB02B5-C2FP 100-240V
JDSU ACTERNA QT-200 DSL TEST HEAD
JDSU ACTERNA TTC FIREBERD 500 2GB-HDD 166MHZ-CPU 32MB-RAM INTERNETWORK ANALYZER
JDSU ACTERNA TTC PR2000 ASCII THERMAL PRINTER
JDSU TTC T-BERD 105 T-CARRIER MONITOR
JENCO PH-VISION 6091 RS-232C DATALOGGER MICROCOMPUTER
JEOL JSM-T330A ELECTRON SCANNING MICROSCOPE UNIT SET
Jetter JetMove 600 JM-603-480-SB1
JETTER SERVO MOTOR JLS-6800-162-3RVP Nr 212831 SHAFT DIA 38MM
J-KEM SCIENTIFIC MODEL 100-JKT THERMOCOUPLE METER P/N 100-2820
J-KEM SCIENTIFIC MODEL 210 TIMER THERMOCOUPLE UNIT
JOHNSON-JOHNSON VITROS SYSTEM DT60 II CHEMISTRY
JT-19 TRUE RMS DIGITAL MULTIMETER GOOD CONDITION
JVC COLOR VIDEO CAMERA DIGITAL MODEL : TK-C921EG
JVC TK-C720E COLOR DIGITAL VIDEO CAMERA W/ COMUTAR LENS
Kappler LS417 NexGen 2X Coveralls Case of 25
Karl Storz 27085 K ultrasonic generator
KARL-STORZ ENDOSKOPE FLASHGENERATOR 600 BA
K-B AEROTECH MODEL 800 MULTISCANNER S/N 0116
KB ELCTRONICS KBLC-240DS 9116 DC MOTOR SPEED CONTROL
KB ELECTRONICS KBLC-240DS 6017 DC MOTOR SPEED CONTROL
KCI Freedom V.A.C VAC FREEDOM Portable System WITH battery operated unit
KCI V.A.C ATS Clinical advantage Wound Suction Pump , battery operated unit
Kd SCIENTIFIC 780230 MULTIPLE TUBE DISPENSE REMOVE PUMP SYSTEM
Keeler Ophthalmoscope Otoscope fiber optic and keeler vista 20 w/ power supply
KEITHLEY 175 AUTORANGING MICROVOLT DMM
Keithley 175A AUTORANGING Digital Multimeter
KEITHLEY 196 6.5 DIGIT SYSTEM DMM
Keithley 2361 Trigger Controller unit good unit
KEITHLEY 487 PICOMMETER / VOLTAGE SOURCE
KEITHLEY KEITHLEY 740 SYSTEM SCANNING THERMOMETER WITH 7402 THERMOCOUPLE .
KELLER MODEL NO PD 10 AF 4
KEMA-KEUR CAMERA POWER SUPPLY 240VAC 50Hz.
Kendall SCD SEQUEL Compression Pump 6325
KENSINGTON LABS AXIS BOARD 4000-60002 BOARD CARD
KENSINGTON LABS AXIS BOARD 4000-60010 BOARD CARD
KENWOOD AG-203A OSCILLATOR 600ohm output
KENWOOD AG-203D OSCILLATOR SIGNAL GENERATOR
KENWOOD CS-5175 100MHZ OSCILLOSCOPE
KENWOOD CS-5375 100MHZ THREE CHANNEL OSCILLOSCOPE
KENWOOD CS-6040 150MHZ READ OUT OSCILLOSCOPE
KENWOOD CV-1245 PAL WAVEFORM