Servo Control
Todays deals on Servo Control?
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“INDRAMAT AC SERVO COMPACT CONTROLLER “DKS01.1-W100A-DS01-02-FW $9,000.00 |
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BOSCH 0-608-830-109 SE110 ANALOG SERVO CONTROLLER ***NIB*** $8,999.00 |
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INDRAMAT AC SERVO CONTROLLER TDM1.2-100-300-W1 $8,550.00 |
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BOSCH CNC SERVO CONTROLLER 1070071219-102 *NEW OUT OF A BOX* $8,500.00 |
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FANUC AC SERVO SPINDLE CONTROL A06B-6044-H312 $8,000.00 |
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NEW ALLEN BRADLEY 1394SJT05CRL SERVO CONTROL 5 KW IMC $7,699.99 |
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BOSCH 1070071221-102 SERVO CONTROLLER *USED* $7,300.00 |
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ALLEN BRADLEY BULLETIN 1391 AC SERVO CONTROLLER 1391B-AA45 $6,850.00 |
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INDRAMAT AC SERVO CONTROLLER KDS 1.3-150-300-W1/S $6,550.00 |
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ALLEN BRADLEY BULLETIN 1391 AC SERVO CONTROLLER 1391B-AA22 $6,250.00 |
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ALLEN BRADLEY AB 1394-SJT22-C-RL SERVO CONTROL DRIVE $5,978.26 |
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INDRAMAT AC SERVO COMPACT CONTROLLER DKS01.2-W100A-DL01 $5,950.00 |
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REPAIRED SEIDEL 64WKS-M240/50-RLG SERVO CONTROL $6,000.00 |
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INDRAMAT AC SERVO COMPACT CONTROLLER DKS01.2-W100A-DS6 $5,850.00 |
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14946 NEW GE Fanuc IC800SSI107S1-CE Servo Controller $5,806.50 |
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INDRAMAT AC SERVO COMPACT CONTROLLER DKS01.1-W100A-DL0 $5,600.00 |
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INDRAMAT AC SERVO CONTROLLER KDS1.1-100-300-W1-115 $5,550.00 |
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Actus Power AC Servo Controller NPSA-104MU-IP1 USPP NPSA104MUIP1 Pak 3PH 220V $5,499.99 |
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ALLEN BRADLEY DIGITAL SERVO CONTROLLER 1394-SJT05-C-RL $4,999.99 |
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ALLEN BRADLEY DIGITAL SERVO CONTROLLER 1394-SJT10-C-RL $4,999.99 |
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Actus Power AC Servo Controller NPSA-102MU-E9BS USPP NPSA102MUE9BS Pak 3PH 220V $4,999.99 |
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Actus Power AC Servo Controller NPSA-103MU-1ECS USPP NPSA103MU1ECS Pak 3PH 220V $4,999.99 |
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INDRAMAT AC SERVO CONTROLLER TDM 1.2-50-300-W1 $4,850.00 |
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INDRAMAT DIGITAL AC SERVO COMPACT CONTROLLER DKS01.1-W050A-DA01-01-FW $4,850.00 |
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ALLEN BRADLEY DC SERVO CONTROLLER 1388B-AV20 $4,800.00 |
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INDRAMAT AC SERVO COMPACT CONTROLLER FWA-CLT1.2-CBC-01VRS-EN $4,800.00 |
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Reliance AC Servo Controller 3RA2015 HR2000 13-15 HP $4,825.00 |
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ALLEN BRADLEY DC SERVO CONTROLLER 1388B-AV 40 $4,750.00 |
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Allen Bradley 1394 Digital Servo Controller 1394-SJT10-T-RL Module 1394SJT10TRL $4,714.78 |
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INDRAMAT AC SERVO COMPACT CONTROLLER DKS01.1-W050A-DL0 $4,750.00 |
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Actus Power AC Servo Controller NPSA-2.5NN-60-E1 USPP NPSA2.5NN60E1 Pak 1-PH/3PH $4,799.99 |
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USED Allen Bradley 4100-234-R IMC S-Class Compact 4 Axis Servo Controller $4,750.00 |
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INDRAMAT SERVO CONTROLLER HDS03.2-W075N-HS12-01-FW $4,500.00 |
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INDRAMAT DIGITAL AC SERVO COMPACT CONTROLLER DDC01.2-N $4,500.00 |
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EXCELLENT! Reliance Electric HR2000 3RA2008U AC Servo Controller (Drive) $4,500.00 |
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INDRAMAT DSC3.1-100-115V/DSC-3.1-100-115V AC SERVO DRIVE CONTROLLER ***RFB*** $4,499.00 |
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Actus Power AC Servo Controller NPA-20NN-50-E8 USPP NPSA20NN50E8 Pak 1-PH/3PH $4,499.99 |
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NACHI RAX23C RAX 23C Drive RAX 23 C SERVO CONTROLLER CONTROL $4,400.00 |
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CONTROL TECHNIQUE SERVO MOTOR MHM-6300-CONS-0000 $4,250.00 |
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INDRAMAT AC SERVO CONTROLLER TDM 1.4-100-300-W1-000 $4,150.00 |
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INDRAMAT DDS2.1-W050D DIGITAL AC SERVO CONTROLLER ***RFB*** $3,999.00 |
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VERY NICE INDRAMAT AC SERVO CONTROLLER MOD# DSC-3.1-100 $3,990.00 |
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SEIDEL 60WKS-M240/50-RLG SERVO CONTROL $4,000.00 |
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Allen Bradley 1394-SJT05-T 1394SJT05T Servo Controller NIB FS $3,999.95 |
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NEW Allen-Bradley 1394C-SJT05-D 5KW SYSTEM MODULE DIGITAL SERVO CONTROLLER $3,771.82 |
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INDRAMAT TDM1.4-100-300-W1-000 SERVO CONTROLLER ***XLNT*** $3,899.00 |
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REFURBISHED ALLEN BRADLEY 1394-SJT10-C-RL SERVO CONTROLLER 1394SJT10CRL $3,900.00 |
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INDRAMAT DIGITAL AC SERVO CONTROLLER DDS03.2-W030-B $3,850.00 |
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INDRAMAT DIGITAL AC SERVO CONTROLLER DDS03.2-W050-B $3,850.00 |
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INDRAMAT AC SERVO COMPACT CONTROLLER FWA-DIAX02-DLG-04 $3,850.00 |
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Allen Bradley 1394-SJT10-C-RL B 1394SJT10CRL B Digital Servo Controller Dr 10KW $3,849.76 |
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Yaskawa JANCD-MSV02 Servo Control Board ~NIB~ $3,827.20 |
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RELIANCE HR2000 Brushless AC Servo Controller # 3RA2015 $3,800.00 |
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RELIANCE HR2000 Brushless AC Servo Controller 3RA2015U $3,800.00 |
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Nice Indramat Digital AC Servo Drive Compact Controller DDC01.2-N050C-DA02-01-FW $3,800.00 |
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Control Techniques DB 220 NP Digitax Brushless AC Servo Drive DB220NP $3,690.00 |
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Indramat TMD2.1-030-300-W1-000 24V AC Servo Controller $3,750.00 |
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NEW NSK EMB014AF1-04 SERVO CONTROL EMB014AF104 $3,750.00 |
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Allen Bradley 1394-SJT10-C-RL Series B Digital Servo Controller USED $3,650.00 |
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INDRAMAT AC SERVO CONTROLLER TDM1.2-030-300-W1 $3,550.00 |
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NEWPORT M4000 SERVO POSITIONING CONTROLLER $3,300.00 |
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CNC CONTROLLER T310P 2 AXIS LATHE (NEW) WITH SERVOS AND DRIVES $3,495.25 |
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MCS SA 2000 SA2000E PWM SERVO CONTROL AMPLIFIER $3,495.00 |
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INDRAMAT DIGITAL AC SERVO CONTROLLER DDS02.1-W200-D $3,450.00 |
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MCS MOTION CONTROL SYSTEMS SA SERIES PWM SERVO AMPLIFIER SA1000 $3,500.00 |
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NEW LENZE EVS9326-ES SERVO CONTROLLER $3,500.00 |
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Indramat AC Servo Controller Model TDM 1.4-100-300-W1-000 New $3,495.00 |
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EXCELLENT! Reliance Electric HR2000 3RA2015U AC Servo Controller (Drive) $3,400.00 |
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ALLEN BRADLEY 1391-DES22-DIAQB SERVO CONTROLLER ***XLNT*** $3,299.00 |
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ALLEN BRADLEY 1391B-AA45 AC SERVO CONTROLLER 45AMP ***XLNT*** $3,299.00 |
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Yaskawa i-80 CONTROL CACR-IR202020C AC Servo Drive TESTED $3,299.00 |
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Allen Bradley 1394-SJT22-C-RL servo control system Module used $3,298.80 |
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CONTROL TECHNIQUES SERVO 190UMB300CACAA MOTOR $3,200.00 |
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Indramat Digital AC Servo Controller DDS 3.1 W030-R, DDS3.1W030R $3,195.00 |
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KENSINGTON LABORATORIES SERVO POSITIONING CONTROLLER $3,199.99 |
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ALLEN BRADLEY DC SERVO CONTROLLER 1388B-AV10 $3,150.00 |
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INDRAMAT TDM3.2-030-300-W1 AC SERVO CONTROLLER NEW $3,200.00 |
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*REPAIRED* Indramat AC Servo Controller CLM 01.3-X-0-4-0 _ CLM013X040_245452 $3,200.00 |
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AB,ALLEN-BRADLEY BULLETIN GMC DIGITAL SERVO CONTROLLER 10KW 1394,AXIS 10KW,C7 $3,199.99 |
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A06B-6050-H202 Fanuc Servo Amplifier Velocity Control Unit $3,150.00 |
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Control Techniques DutymAx DS 95DSC301HAAAA Servo Drive $3,150.00 |
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INDRAMAT TDM1.2-050-300-W1-115 SERVO CONTROLLER ***XLNT*** $3,099.00 |
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Allen Bradley 1391B-AA45 AC Servo Controller 14KW Series D *Never Used In Box* $3,000.00 |
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INDRAMAT AC SERVO CONTROLLER DDS 2.1-W150-D $3,000.00 |
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INDRAMAT TDM 1.4-050-300-W1-000/TDM1.4-050-300-W1-000 AC SERVO CONTROLLER *NIB* $2,999.00 |
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ALLEN BRADLEY 1391B-ESAA15-AQB AC SERVO CONTROLLER ***NIB*** $2,999.00 |
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ALLEN BRADLEY AC SERVO CONTROLLER 1391B-ESAA45-AQB $2,950.00 |
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ALLEN BRADLEY 1391B-AA22 22AMP AC SERVO CONTROLLER ***RFB*** $2,999.00 |
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ALLEN BRADLEY 1391B-ESAA15-AQB SER. D 1391BESAA15AQB AC SERVO DRIVE CONTROLLER $2,987.56 |
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INDRAMAT DDS3.2-W050-B/DDS03.2-W050-B/DDS 3.2-W050-B SERVO CONTROLLER ***XLNT*** $2,999.00 |
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INDRAMAT DDS3.2-W030-B/DDS03.2-W030-B/DDS 3.2-W030-B SERVO CONTROLLER ***NNB*** $2,999.00 |
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INDRAMAT DDS03.1-W030-DS01-00/DDS3.1-W030-DS01-00 SERVO CONTROLLER 30A **XLNT** $2,999.00 |
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FANUC SERVO CONTROL A02B-0168-B013 USED A02B0168B013 $3,000.00 |
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ALLEN BRADLEY 1391B-AA45-A06 SERIES D AC SERVO CONTROLLER *USED* $3,000.00 |
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Rexroth Indramat DKC01.1-040-7-FW Digital Servo Drive Controller EcoDrive 265406 $2,999.99 |
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ALLEN BRADLEY 1391-DES45-DI-AQB SERVO CONTROL ***RFB/AB*** $2,899.00 |
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HAAS CNC MILL ROTARY TABLE INDEXER SERVO TWO AXIS CONTROL BOX #20 $2,850.00 |
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HAAS CNC MILL ROTARY TABLE INDEXER SERVO TWO AXIS CONTROL BOX #19 $2,850.00 |
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AB,ALLEN-BRADLEY BULLETIN SERCOS DIGITAL SERVO CONTROLLER 5KW 1394,AXIS 2KW,QR $2,949.99 |
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AB,ALLEN-BRADLEY BULLETIN SERCOS DIGITAL SERVO CONTROLLER 5KW 1394,AXIS 2KW,KF $2,949.99 |
Servo Control Questions
Digital Servo Operation
The basic working principal of all servos remain the same. They have a three wire connector. While one of the three wires supply five to six volts of positive charge (DC), the second wire is used to serve as the voltage ground and the third wire as the signal wire. The receiver of the RC motor respond to the servo with the on/off signals passed on through the signal wire. Digital servos have a microprocessor that evaluates the signals received and processes them in to pulses of very high frequency. The motor receives these high frequency voltage pulses to produce a torque. In case of the normal analogue around fifty pulses are sent to the servo motor through the signal wire.
The use of the microprocessor in a digital servo increases this pulse rate to around three hundred pulses per second served to the digital servo motor. This decreases the length of the pulses making them shorter but with an increase in the number of pulses the speed of the motor increases considerably producing torques at a quicker and constant rate. This is the reason why a digital servo produces a somewhat musical beat when a light weight is placed on them as the short high frequency voltages are acting on the motor of the servo.
The use of the microprocessor itself makes the digital servo faster and quicker with a smaller deadband and smoother acceleration. The microprocessor giving out large number of processed pulse beats also increase the holding power of the servo motor. This increases the efficiency of the motor. This can be noticed when comparing the working of a digital and an analogue servo at the same time.
The servo wheel of an analogue servo can be displaced only to a small extent before the servo motor starts to resist the force. In case of a digital servo, the servo motor responds fast and holds on better to the signals supplied. The microchip present in the digital servo controls the initial power supplied to the motor of the servo. This reduces the deadband of the digital servomotor and in turn generates high resolution and increased holding power. The only disadvantage in this is that with so much of energy being supplied to the digital servo at a frequent rate the power consumption is very high.
This problem of the digital servo can however be solved with the use of batteries. Installing a large capacity battery that can be allowed will prove to be energy efficient and solve the problem of power consumption.
Read more about motor control.
About the Author
Article by Jenny, content writer at Inter-Dev Internet Marketing Company, on behalf of Servotronix.com – Servo Controls
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