NDCS-03

NDCS-03 .NDCS-03.NDCS-03

Reliance  RX-52861-1
Reliance 1DB4010U-DBCC-004 
 Moog 62F115
NJE RX2E24-OVP 
Seidel  STR54K240/30
Allen Bradley 1361N0642/T198107
Incom  VEHRG100-22 
Fincor 2200P 
Cincinnati #37200077A #12300534
West  A6511-10ES 
Sundstrand MCE100A1067
Fanuc  A06B-6058-H011 AC 
Fanuc  A06B-6058-H004 AC 
Moog G761-3003  S19J0GM4VPL 
Moog D633-255A R16KO1M0N6M2 
Moog D633-317A R04KO1M0NSM2 
Motorola  1995 DL118/D
Moog T161-504A 
Allen Bradley 1391B-ESAA45-AQB
Pacific  R43SSNA-HS-NS-NV-02
Moog G772K619A
Moog G772K620A 
Rexroth ACA-0581-0-C-1
Moog  641A212B 
Reliance  1326AB-B720E-21K7 
Sauer  ACX104C1167
Emerson DX-450 
Novotechnik IGP-10 P 6501A502 
GE Fanuc IC660EBD020N 
 Parker  D31FTE02CC4VF00
Yaskawa SGMSS-15A2A2C-Y2 
Moog G761-3004
Vickers FAST-1-M4-030-10-02-00
Mavilor MO-300  00300.120.0A06.J2
Infranor  M0 2000T MO2000T
Yaskawa SGMSS-15A2A21-Y3 
Moog D792-109 / D761-532 
Rexroth  VT-2000K43/2
 Moog D661-431D-4 
Moog G761-3008 
Heidenhain  EXE610C
Fisher Type 546FM 
Mitsubishi HA-SE52 
Baldor BSM80N-350BA 
Rexroth 2FRE 6B-22/16QZ4MV 2FRE6B-22 
Modicon S33F-A00-2010
Moog D313-003
Parker MPM664BTG6G1N 
Toshiba VT130G1-2055B0 
Toshiba VT130G1-4035BO
Emerson DXM-202 
Yaskawa SGMCS-10C3C11 
PMI 0088007001 
Type: SSA-40-07-20
Actus Power NA20-1.5F-G10 
Indramat MDD065D-N-060-N2L-095PB0
Fanuc A06B-0533-B551
Vickers EEA-PAM-525-C-32 
Rexroth 4WRZE 10 E85-70/6EG24N9ETK31/A1D3V
Parker CM232AX-114074
Rexroth FE50C-13/1180LN9K4M
WTC WT01-T11A 
Lambda LRS-49-12
Kennametal ATM-B310 
Instruments 305-02B Cont/325-07
Schaevitz P3061-100PSIG 
Advanced  1431-02 
Sauer  MCW101D1012 
TSD ACE100B1002 
Mitsubishi HA-FF43-S3
Ormec  MAC-B200F-K1A 
Rexroth 4WSE2ED10-51/90B13ET315K31EV 
Ormec  MAC-B080D/K1A 
Nachi-Fujikoshi MSM082Q3D 
Victory  D-7R-8-60-240-S3 
Galco  WKD260-14 
Rexroth  4WS2EM 
Tokyo 304F-60L-20-21-B 
Rexroth  4WRDE 
Rexroth 21/4WRDE 10-52/V
Rexroth  4WRGE-1x/210M
Parker ML3450B-10 
Moog Flight Simulator Valve 728-003E 
Parker  BLH75B
Parker D1FXE01BENBJ0040X6264
Yaskawa USASEM-05YRW12 
Yaskawa USASEM-05YRW11
HeidenhainEXE600-5.V
Indramat  RM-I-01 
Denison 701-00600-8 
Parker M106-120 
Parker EW32-104-10 
Indramat NAM1.2-15
Indramat BTM03.1-NA-TA-TA-BA-BA-RA-2FF 
Rexroth 4WS2EB10-45/20B2ET210K8AM 
 Parker EZ00-150-11
Pegasus  V122A PLS 2372V 
Rexroth EHST-3-FVF-40
Moog AC6717 T8.5803.ZPTY.20?48
Rexroth DBETE-61/200G24K31A1V  R901029968
Electronic IT-10 
Honeywell 7295A 1000 
Elap E621-1000-10/24-R-9 
Mitsubishi MR-J20MA-UL 
GTE PW556415 
Novotechnik TS-75 TS75 002334
Moog G761-3600 
Moog 744F006 
Moog  072F103 
Refurbished  4653 133 000
Refurbished  4685 299 929
Refurbished  ST10XA5B30X
MOOG/Atchley 240-530-2
Atchley 215A-404 
Moog  142P4560
Parker  M83-93
Compumotor  M578311
Tokyo  3F-30L-30-14.145 
Oilgear SCVA-25-10-210-200 
Moog Servo Valve -072F132 
Rexroth 4WRAE6W30-21/G24N9K31/A1V
Rexroth M-3SEW6U36/420MG96N9K4 R900570744 
Rexroth  4WRE 6 E16-12 24K4 
Mitsubishi H  MRH-15-KAN
Bosch  1817-414-332 w/ 0811-404-966
Datalogic CM1000
Bosch 0 811 405 063 2STV 0811405063
Moog T150-901B-702-1A
MCG l 2182-MBE3569 
Rexroth  4WREE6 V08-22/G24K31/A1V
Refurbished 3RA2004
Mitsubishi MR-J2-100A
Parker EHD31VJL1C7/234912-23A
CGI 23SP0050  4023-828P 
Bosch 0811-402-602
Pacific S22GNNA-RNNM-0
Pacific R32GENC-R2-NS-NV-00
Allen Bradley 1326AB-A3E-11 
Reliance 1326AB-B730E-21-K7 
Indramat MAC112C-0-ED-4-C/130-A-0/WI516LV/S005
Indramat MDD093C-N-030-N2L-110GA2
Automation  ALC2502-010-102R 
Square  MG24521 C60N
Indramat MDD093B-N-040-N2M-110GA2
Yaskawa CACR-SR30BB1AF
Vickers SM4-40(40)151-20/200-10
Vickers SM4-20(5.3)20-300/30-10-S46 
 Bosch 0811405129
Moog G761-3008
Moog  DS2000 CZ1000C4
Moog D662Z1910E  D061-857B
Moog D634-341C
Moog D634-319C
Moog D634-514A 
Moog D633-518B
 Moog D633-320B
 Moog D633-308B 
Moog  126-320B
Sola 83-05-260-2
 Moog 743F003A 
Fram  F1632-06 691650
Bosch 0811 404 142 0811404142
Technologies PS-111 
Moog  150-104A
Moog  155-002
AEG AS-B824-016
Sola  83-81-2250
Moog X150-102B
Parker  D31FSE01B2NXP0/ D1FVE02BCNXP10
Parker  D31FSE01B2NXP030 /D1FVE02BCVXP20
Yaskawa  SGDB-10AN
Moog 152E508 
Parker  M10612011
Parker D41FSE02C1NXP020/ D1FVE02BCVXW20
Micronata Model 22-120A
Moog 150104A 
Moog  152D423 
Actus  NPSA-2.5NN-40-E3
Yaskawa CACR-HRA5BAB11Y5
Moog 78-131C 
CEI JP15-110 Servo 
Moog D691-2099G 
Rexroth EHST-3-FVE-30 
AEG A720-020
AEG A710-000
Indramat MDD112C-N-030-N2M-130GA1 
Indramat  MDD112D-N-030-N2M-130PB0 
Indramat MHD112C-024-PP0-BN
Indramat  MDD112C-N-030-N2M-130PB2 
Indramat MHD093C-035-PP0-BA
Nachi-Fujikoshi  USADED-37-FC31
Nachi-Fujikoshi  USADED-37-FC33 
Fanuc A06B-0501-B759
Reliance  S-4050-P-H00AA
Yaskawa UGCMED-04AA2SF
Indramat MDD112D-N-030-N2L-130PA0
Kollmorgen Model B-204-A-21
Condor HC5-6/OVP-A
Atchley 240-530-2
Indramat  DDS 2.1-W150-D 
Moog 211A-630
Vickers e SM4-30(15)57-80/65-21 Ass'y 855337
Vickers  SM4-20(1)3.8-80/40-10 Ass'y 855380
Vickers  SM4-15(2.5)9-80/40-10 Ass'y 635664
Yaskawa  CACR-SR15SZ1SDY77 
Vickers  SM4-10(3.75)14-80/40-10 Assy 927933
Vickers SM4-15(1)3.8-80?/40-10 Ass'y 855366
Vickers  SM4-20(15)57-80?/40-10 Ass'y 682121
Moog G761-3005 
Moog E672-010D01G00N E1175
Moog 760A185A 
Sauer R7232A1028 
Moog -744F002 
Moog D661-4744 
Moog 72F587A-HP5 
Condor CP197A
Moog 061-606C 
Vickers EG-0041 
Square D Q2L3125
Moog 72F586A-HP5 
Extron 112-0830A0000 
Vickers 687245 
Vickers 891719 
Vickers 684952
Vickers 684953 
Rexroth VT8-1532 VT1532 
Hartmann HT10
Moog  155606-1X 
MOOG  164-007E-10-B2-2
Vickers  EEA-PAM-571-A-14 
Vickers EEA-PAM-126-B-30 
Rexroth VT5004-24/R1E
Moog 86B126J 
Mannesman SR20 S033
Toshiba VT130G2U4055 
Toshiba VT130G2U4035
Toshiba VT130G2+4035 
Danfoss 175H1729
MOOG G761-3004
MOOG 60B103H 
Moog 164-007B-00-A7-2 
Magnetek MSC700 7-22177000
Reliance  SP500 1SU41001
TB Wood's WFC4007-5C 
TB Wood's XFC2003-0C
TB Wood's WFC4001-0C 
Indramat MDD065B-N-040-N2L-095GA0
EG&G ME2620-315B
ABB RSY264.30-2 R4-4/S23/S60
Actus  NA20-1.5F-G10
Yaskawa CACR-SR30BZ1SSY367
Pacific R63GENA-NP-RW-VS-02 
Indramat MDD090B-N-030-N2L-110PA0
Fanuc  A06B-0522-B251
Fanuc A14B-0061-B112-01
Emerson DXM-340CB
Indramat MKD025B-144-KG0-KN
Bosch B-830-303-421 
Moog M040-104 
Yokogawa FRV5 
CEI VS8640VBE31B
Rexroth DBETE-61/315G24K31A1V R901029969
Omron  H5CN-YBN
Panasonic MFA075LB2BSA 
Tektronix P6150 Passive Probe, DC to 9 GHz, Low Impedance 
HP/Agilent 85671A Phase Noise Measurements Utility RF Measurement 
HP/Agilent 11570A 50 Ohm Accessory Kit 
HP/Agilent 1159A 1GHz Differential Probe for the HP 54846A 
HP/Agilent 16518-68701 Master Expansion Accessory Kit Kit consists of 16517-82104 16517-82105 16517-82106 16517-82107 16517-82108 16517-61601 16517-61604 16517-63201 16517-68701 
Lecroy TF-USB USB Test Fixture for USB 2.0 testing 
HP/Agilent 85132E 7 to 3.5 mm flexible test port cable 
Fluke 2280B-3063 RTD/Ohms Scanner Assy 
HP/Agilent 11730A 5Ft. Power Meter Cable 
Keithley 7024-3 TRIAX CABLE, 2 LUG BNC BOTH ENDS 
HP/Agilent 11854A 50-ohm BNC Accessory Kit 
Tektronix P6022 AC Oscilloscope Current Probe 
HP/Agilent 85027D Directional Bridge, 0.01 to 50 GHz 
HP/Agilent 86200B RF Scalar Detector, 50 ohms, 10MHz to 1300MHz. Used with 8711x series network analyzers. 
HP-Agient 16092A 16092A Spring Clip Fixture is designed for impedance evaluation of both lead and SMD. 
HP/Agilent 04291-60144 (4291A-B Opt. 14) High Temperature, Low Impedance Test Head for 4291A/B 
Agilent E9288A Power Meter Cable, 5 ft, (1.5m) 
Anritsu 3671V50-1 Test Port Cable Set to 65 GHz Anritsu 3671V50-1 Test Port Cable Set (2 cables) to 65 GHz, V (f-m) Connectors, 25 inches 
HP/Agilent 16095A Probe Test Fixture HP/Agilent 16095A Probe Test Fixture for 4192A, 4285A etc. 
HP/Agilent 16047B Test Fixture Test Fixture, High Voltage, Remote Cabled, (Like 16065A) 
HP/Agilent 16023B Bias Controller Bias Controller 
Boonton 95600005A Power Sensor Cable 5ft. 
Tektronix P6015A Tektronix P6015A High voltage probe
HP/Agilent 85131-60012 3.5mm Flexible Test Port Cable 
HP/Agilent 85032-60011 Type N 50 Ohm Male Combination Open/Short 
Anritsu SM-PL-1 Precision Load, DC to 6 GHz, 42 dB, N(m), 50 Ohm 
Anritsu SM-PLNF Precision Load, DC to 4 GHz, 42 dB, N(m), 50 Ohm 
HP/Agilent 85131-60013 3.5mm Flexible Test Port Cable 
Tektronix TCP202 Current Probe, DC Coupled 
Agilent 1169A 12GHz Infinimax Probe System 
HP/Agilent N1022A Probe Adapter 
HP/Agilent 16093B RF Binding Post Test Fixture for HP 419X series. 
Tektronix P6248 Differential Probe, DC-1.5 GHz 
Anritsu MA2444A High Accuracy Power Sensor for ML2430 Series. 10 MHz to 40 GHz, -67 to +20 dBm, 
HP/Agilent 85131-60026 - 85131FC04 Flexible Test Port Cable, 3.5mm F-F, 38 inches (Longer version of 85131-60013) 
HP/Agilent 16034B Test Fixture w/ Tweezers 
HP/Agilent 1155A Low Mass Active Probe 2-Channel, 750 MHz 
HP/Agilent 16197A Bottom Electrode SMD Test Fixture 
HP/Agilent 16081A BNC Test Lead adapter for 4277A, 4278A, 4279A, 4280A 
HP/Agilent 1158A Active Probe, 4GHz 
HP/Agilent 10483A 3-State 3.3V Data Pod 
Tektronix P7260 Tektronix P7260 6 GHZ Active FET Probe 
HP/Agilent 85712D (For Rent Only) EMC Auto Measurement Personality 
Tektronix P6860 34 Channel High-Density Probe 
HP/Agilent 16453A Dielectric Material Test Fixture 
HP/Agilent 83440D 1300/1550 nM, DC-32GHz Lightwave Detector 
Tektronnix 178 Linear IC Test Fixture for the 577 Curve Tracer 
HP/Agilent 85062B 3.5mm Electronic Calibration Kit 
HP/Agilent 85070E Upgrade Dielectric Probe Kit 
Fluke 80T-150U Universal Temperature Probe 
Tektronix P7313 12.5 GHz, Z-Active Differential Probe 
HP/Agilent U2000A-100 USB Power Sensor, 10 MHz - 18 GHz 
HP/Agilent 11970V Waveguide Harmonic Mixer, 50 GHz to 75 GHz 
HP/Agilent V281A Coaxial Waveguide Adapter, 1.85 mm (f), 50 to 67 GHz 
Tektronix P6980 Differential Data Logic Analyzer Probe, 34-Channel 
HP/Agilent U2002A-100 USB Power Sensor, 50 MHz - 24GHz with N1918A-100  Power Analyzer w/PC License ($2,583) 
HP/Agilent U2004A-100 USB Power Sensor, 9kHz to 6 GHz with option 100 (N1918A-100  Power Analyzer w/PC License, +$2,583) 
HP/Agilent U2001A-100 USB Power Sensor, 10MHz to 6 GHz with option 100 (N1918A-100  Power Analyzer w/PC License, +$2,583) 
Tektronix P6864 17 Channel High-Density Probe 
Agilent E9288C Power Meter Cable, 10M (31 Ft) 
HP/Agilent 85132-60004 Connector Assembly - 3.5mm (F) to 7mm 
Anritsu 3671V50-3 Anritsu 3671V50-1 Test Port Cable Set (2 cables) to 65 GHz, V (f-m) Connectors, 25 inches 
HP/Agilent E5900B/E3452B Emulation Probe 
HP/Agilent E5900B/E3454B Emulation Probe 
HP/Agilent E5900B/E3463B Emulation Probe 
Tektronix P7513 Trimode differential probe to 13 GHz 
HP/Agilent 70800B MSIB Interface Cable Set for 70004A, 70001A, 70843A/B/C, 71612A/B/C 
HP/Agilent 85054B Type N Calibration Kit
JVC,BR-S810E,Editing Recorder
Hauser Compax -M,Power Supply,Parker,4 Gerte
AEG Zentrale Kontrol-Einheit,CCU,mit Prüfprotokoll I.O
Siemens CUVC,6SE7090-0XX34-0AB0
AEG CCU 132.08 ,590.037 498,32bit controller 
Siemens Simatic S5 , 6ES5 340-3KA21, 6ES5340-3KA21
AEG Logidyn D2,Counter, Typ DIZ232
Indramat 1TRM2,Typ:1TRM2 G11-WO/019
Siemens Sitet , A2B00048133, S MAW7108795, NEU
Video Microprocessor,?NR.0529,0529360?0,Gebraucht
FANUC A16B-1200-0410
Siemens Simoreg C98043-A1098-L1, 6RA8261-2CA00
Siemens Simatic S5 , 6ES5150-3SB61, 6ES5955-3LC14
FANUC AD6B-6047-H040
YASKAWA JPAC-C231.501, PLATINE, ETC507600.S0100 
Siemens Simodrive,6SC61?00-0NA21,462 010.9070.21
FANUC  A06B-6047-H003
Siemens 6FX1143-3BA01
Siemens Sinumerik 8M, MS10, + MS810 
AEG, DEA 106
Siemens Simatic PC FI45,6AV7660-5D?E00-0AT0
SAIA PCA1.M56M4 , PCA1 M56M4, 
Siemens CUMC,6SE7090-0XX84-0AD1,66SE7090-0XX84-0FB0
Siemens Simatic S5-95U,6ES5 095-8MD02
AEG Modicon A350, DNP 155, SCU 150, ALU 150, BK 151 
Siemens Sinumerik 810 
Siemens Sinumerik 6FC3981-4FD, G24 G5/25WRGD
Kl?ckner-Moelle?r suco control,PS416,CPU400,Suconet
Siemens Simovert 6SE2100-1CA00,K?omplett mit Panel
Siemens Simatic S5 , 6ES5155-3UA11, 6ES5955-3LF12, Rack
Pilz PSS SB 3006 IBS-S,TOP ARTIKEL
AEG Modicon A350, DNP 155, SCU 150, ALU 150,CPU
Platine,CPU,Part Number:08562101
JVC,CR-4700E,Video 
PilzPSS CPU,PSS PS,PSS DI2,PSS DIO T,PSS 1 DOS23
SAIA PCA1.M56M4 , PCA1 M56M4
Siemens I/O Modul 64E/32Ausgnge,6FC3984-3RA
SüTRON, Touch Panel, TP32ET-01/02904, 81151.010, TP 32
Weir Schaltnetzteil Weir SMM 150/15
Siemens Simatic S5 , 6ES5451-5AA13, 6ES5 451-5AA13
Pilz Komplett-Steuerung, CPU Baugruppen, Rack, C-P8
  
 
ABB DSQC 236G YB560103-CD/22 AXIS DRIVE BOARD 
ABB DSQC 236G YB560103-CD/24 AXIS DRIVE BOARD 
ABB DSQC 236G YB560103-CD/22 AXIS DRIVE BOARD  
ABB DSQC 236T YB560103-CE/23 AXIS DRIVE BOARD  
ABB DSQC 2498 3HAA3562-ANA/1 POWER SUPPLY - AXIS DRIVES
 ABB DSQC258 Netzteil, Industrieroboter, Roboter, Robot
Nachi AR Rob501 Teachpendant, Industrieroboter, Roboter 
Nachi AR Rob301 Teachpendant, Industrieroboter, Roboter
ABB DSQC236A Treiberstufe S4, Industrieroboter, Roboter
ABB DSQC236B Treiberstufe S4, Industrieroboter, Roboter
Kuka 7 Achsschaltschrank 99, Industrieroboter, Roboter 
Kuka KCP1/2 Halter, Industrieroboter, Roboter, Robot
Kuka RDW, KRC1, Industrieroboter,Roboter,Robot
ABB DSQC223 Digitale I/O S3/4 Industrieroboter, Roboter
Kuka MFC mit DSE, KRC1, Industrieroboter,Roboter,Robot
Adept Teachpendant, Industrieroboter, Roboter, Robot
Fanuc TP Leitung, Industrieroboter, Roboter, Robot
Kuka VKCP2 Teachpendant, Industrieroboter, Roboter
Fanuc RJ2 Teachpendant,Industrieroboter,Roboter,Robot
ABB DSQC346G Treiberstufe S4C Industrieroboter, Roboter
Kuka KCP2 Teachpendant, Industrieroboter, Roboter
Kuka KR150-2 KRC1 98,Industrieroboter,Roboter,Robot
ABB DSQC252, Signal Board, Industrier, Roboter, Robot
ABB IRB6400 Handgelenk, neu, Industrier, Roboter, Robot
ABB DSQC328, I/O Karte, Industrieroboter,Roboter,Robot
现货供应，价格很低  ABB DCS Freelance2000 DDI03 
ABB DCS Freelance2000 备件 DDI03  1pcs
ABB DCS Freelance2000 备件 DAI03   1pcs
ABB DCS Freelance2000 备件 DAI04   1pcs
ABB Taylor MOD 300模块 ABB Taylor 6231BP10830C-B     1pcs
ABB Taylor Electronics Field Bus Controller 6227BZ10200D     1pcs
ABB停产备件 Taylor Process Automation CPU Module   1pcs
ABB Freelance2000 备件 DAO01 1pcs
ABB 终端模块 3BSE013230R1-TU810V1   1pcs
ABB Procontic CS 31 07KT9     1pcs
E Lux electronics DSQ223 YB560103-BD/3 I/O board - ABB
E Lux electronics DSQ223 YB560103-BD/1 I/O board - ABB
Sick 30-FGS Safety Light Curtain 2 units 
VTQ Videotronik 1.4GHz DX AV Receiver IV, 16 channels  
VTQ ProfiLink Outdoor AV Transmitter IV & 8dB Receiver 
Siemens Masterdrives 6SE7018-0EP50-Z
Siemens Filter 6SE7021-2EP87-0FB1 - 3x12A
Siemens Simatic S7 6ES7 323-1BH01-0AA0
Siemens Simatic S7 6ES7 307-1EA00-0AA0 PLC Power Supply
Toroidal Transformer - Dantrafo DT 1979-11 98/26
Toroidal Transformer - TransElectro TR. NO. 4339 PROD. 
ABB Rectifier - Type: VII 25-10 G1 Product Code: GN5710
Sangamd Capasitor Type 500 - 57,000 MFD 30VDC
Yamatake Honeywell Optical Sencor FE7C-FRC6 
Torsteknik Welder. Type WFC-15. 220V 50Hz 350VA.
Tough Gun Tregaskiss SG1152-TW5410 Robot Weld Gun 
Cewe Typ TA 104. 4/380 2/500~ . 20-30 kg/cm2
AEG Contact - See pictures for detailed infomation
Cabels for Burney CNC Cutting Machine
Harris Flashback Arrestor - Model 188/2L
Encoder for Centroid Servo Motor
Shinano Kenshi 4pole Servo Motor - Model DH052-120E7N02
IFS VR1810 FM Video Receiver + 2 Way Contacts. 
IFS DT 1810 8 channel contact mapping transmitter 
Bosch LTC 4642 Video Receiver without Power Supply
Bosch LTC 4628 Video Transmitter + Data Receiver 
Philips Bosch LTC 4645 4 channel video reciver
Philips Bosch LTC 4644 4 channel video transmitter
No Photo 
VTQ Videotronik Multi DX IV Receiver
ViAC VARIABLE FREQUENCY CONVERTER LC 550-44
Grundfos Pump, 4kW, 16bar, Model A
Festo Pneumatic Cylinders Serie F608 12bar 10 cylinders
Bosch Pneumatic Valves, Type 513, 6 on a row
DI-ACRO Turret Punching Machine VT-36
Balluff encoder, Incremental, Serial number 97162977 
Siemens Servo motor, 3 phases, permanent mag. 11Nm@7,5A
Siemens Servo motor, 3 phases, 5,5Nm@3A
Siemens Servo motor, 3 phases, 11kW, peak 16,5kW
Gildemeister NEF +500 CNC Control Panel 
Dyna DY900B Battery Charger, 28V / 33A
Sparcon 1200 Plasma Cutter, CNC interface, 115A
Intelligent Auto Charger, KD-252, 12V battery, 5A
Leab CBD Type B14-55 PWM motor control