制动过程 能耗制动的过程如下： 能耗制动的过程如下：A、当电机在外力作用下减速、反转时(包括被拖动)，电机即以发电状态运行，能量反馈回直流回路，使母线电压升高;B、当直流电压到达制动单元开的状态时，制动单元的功率管导通，电流流过制动电阻;C、制动电阻消耗电能为热能，电机的转速降低，母线电压也降低;D、母线电压降至制动单元要关断的值，制动单元的功率管截止，制动电阻无电流流过;E、采样母线电压值，制动单元重复ON/OFF过程，平衡母线电压，使系统正常运行。 制动单元与制动电阻的选配 首先估算出制动转矩 =((电机转动惯量电机负载测折算到电机测的转动惯量)*(制动前速度-制动后速度))/375*减速时间-负载转矩 一般情况下，在进行电机制动时，电机内部存在一定的损耗，约为额定转矩的18%-22%左右，因此计算出的结果在小于此范围的话就无需接制动装置
HD SYSTEMS REDUCER GEARHEAD CP-32A-21-J602A-SP 18 21
From Korea, South


New HD Harmonic Servo Head Drive Gear Reducer 5:1 CP-25A-5-J601A-SP PD-0041



HD Harmonic Servo Head Drive Gear Reducer 33:1 // CP-25A-33-J604A-SP
From Korea, South


Yaskawa AC Servo Motor 400W SGME-04AFJ26 &CP-35C-10-J602A Harmonic Drive Reducer
From Korea, South


2011 PLATES & PATCHES A.J. GREEN RC BLITZ AUTO 3 CLR-JERSEY RC SP#10/25 BGS-10**
Customs services and international tracking provided


YASKAWA SGDM-04ADA,SGMPH-04AAAGB61,HD GEARHEAD CP-25A-11-J602B-SP,DRIVER MOTOR
From Korea, South


NISSAN DATSUN VIOLET A10 140J, 160J EXHAUST GASKET - PCEG25C
From United Kingdom


SKF Cuscinetto Radiale A Sfere 10 - 30 - 9 (6200 C3) MBK Booster sp spirit eu25
From Italy


SILK LASHES J B C CURL 8 10 11 12 13 14 mm LENGTH INDIVIDUAL EYELASH EXTENSIONS
From United Kingdom



Harmonic Drive Reducer CP-20C-33-J614A-SP Ratio 33:1
From Korea, South


INDIVIDUAL EYELASH EXTENSIONS MINK LASHES J B C CURL 6 8 10 12 13 14 mm LENGTH
From United Kingdom



MINK LASHES J B C CURL 8 10 11 12 13 14 mm LENGTH INDIVIDUAL EYELASH EXTENSIONS
From United Kingdom




NEICHA Premium Silk Lash A(J), B, C curl Silk Lash for Eyelash Extension
From United Kingdom


EYELASH EXTENSIONS SILK TRAY LASHES BOXED J B C CURL 6 8 10 12 13 14 mm LENGTH
From United Kingdom



HD System Planetary Gear head CP-16C-05-J699A-SP
From Thailand


INDIVIDUAL EYELASH EXTENSIONS MINK LASHES J B C CURL 6 8 10 11 12 14 mm LENGTH
From United Kingdom



HD GEARHEAD REDUCER CP-40A-33-J602A-SP RATIO 40:1
From Korea, South


Harmonic Drive System Inc. CSF-40-10-2A-GR-SP SF40C0J021 Gear Reduction Reducer



Yaskawa SGM-08A3G14B AC Servo Motor, HD CP-25A-05-J401A-SP 750W 200V 4.4A
From Israel


Power Supply for Toshiba Satellite C55D C645D-SP4283M C75D-A7213 L755D-10J P845T



Pyrex Corning A12C 10 Inch Square Replacement Cover Lid Top No Chips A 12 C 25-J
Customs services and international tracking provided


SANDISK CLASS 10 32GB MICRO SD SDHC MEMORY CARD FOR Sony Xperia Z1 J C A ZA SP E
From United Kingdom


EYELASH EXTENSIONS SILK LASHES TRAY BOX J B C CURL 6 8 10 11 12 13 14 mm LENGTH
From United Kingdom



Lot of 2, 2-Pole Circuit Breakers, FUJI CP6 2DU25 D-25A & MOELLER FAZN C10




2011-12 SP Authentic Autograph JON LEUER #41 10/25 BADGERS (A1C)



Yaskawa Servo Drive & Motor/SGDA-02ASP/SGM-02A3G26/CP-20A-11J602A-SP/HD SYSTEM
From Korea, South


Neicha Twinkle Silk Lash A/J, B, C curl for Individual Eyelash Extension
From United Kingdom


Pyrex Corning A12C 10 Inch Square Replacement Cover Lid Top No Chips A 12 C 25-J
Customs services and international tracking provided


10x 3.7V 350mAh 25C lipo 1pc bag for Genius QR Ladybird Mini super CP V939 816 A
From China


Yaskawa AC Servo Motor 200W SGME-02AFJ26 &CP-20C-10-J602A Harmonic Drive Reducer
From Korea, South


C J Wilson 2012 Allen & Ginter #107 Mini Red A&G Back SP/25 Anaheim LA Angels




New Genuine Nissan J2270-10Y25 A/C Retrofit Kit



CARTOUCHES LC1220 LC1240 LC1280 COMPATIBLE BROTHER DCP MFC A L'UNITE OU EN LOT
From France


HD SYSTEMS GEARHEAD REDUCER CP-16C-33-J604A-SP 57-8 JG-010
From Korea, South


Diamond Silk Lash A/J, B, C curl for Individual Eyelash Extension
From United Kingdom


HD SYSTEMS CP-25A-5-J401A-SP USPP CP25A5J401ASP
FREE 2 YR WARRANTY FREE US SHIPPING ON ORDERS OVER $100

81 HONDA C70 PASSPORT STD PISTON #



ABB Commander 250 C250/0300/STD Controller



ABB C250/0000/STD COMMANDER 250 PROCESS CONTROLLER



FARGO 44202 CARTRIDGE, C30 STD BLACK (K)



UCO C-A-STD Candle Lantern Canlelier, Aluminum
Brand New Factory Original! eCop! Has THE BEST Service!



Nissan Titan Toolbox, Non-sliding Std Bed (c/c)



KERI NXT-C STD LIGHT PROX CARD 06501-001



Yukon Gear & Axle YP C1-D60-STD Differential Cover



010-825k Yam 701 C.c. Std. Piston Kit By Wsm
Customs services and international tracking provided


BUELL 1125CR 2009 Clutch / Brake Std Length Adjustable Levers B/C
From Australia


New battery Std Honda 1000 CB1000C Custom 1983
From United Kingdom


Dell 05C999 STD2401LW 20/40GB Internal Dat Drive



Bomar 100 Series Cast Hatch #C180-STD-B Brand New!



UFO MOTOCROSS HANDLEBAR PAD FOR STD BARS 2509C
From United Kingdom


Hyosung GT650R 06-11 CLutch & Brake Std Length Adjustable Levers Black/C
From Australia


Kawasaki ER-6N 2009-2013 Clutch / Brake Std Length Adjustable Levers B/C
From Australia


HEAT SINK, BGA, STANDARD, 14.7_C/W, BGA STD 045 2084433
From United Kingdom


82 HONDA GL1100 STD STANDARD GOLDWING SHELTER COVER #5C4




93 94 95 TOYOTA PICKUP WINDSHIELD WIPER MTR STD SPEC 5468
Used Windshield Wiper Motor


83 84 85 S10 BLAZER TEMPERATURE CONTROL W/O AC STD DUTY HTR OPT C41



*Use 503795*Neb C Std Neb65 Apocryp: New English Bible: Old & New Testament W.A
From United Kingdom


New Perkins 404C-22 Overhaul Kit STD



Integy INTEGY C24352BLACK Deluxe Pit Table Std Size V2 LED Light INTC2260
30 day Return Policy for Money-Back or Exchange
Customs services and international tracking provided


NOS Honda Piston STD 82-83 CM250 CM 250 C



93 94 95 TOYOTA PICKUP WINDSHIELD WIPER MTR STD SPEC
3 Month Warranty!





XYCOM MONITOR 3512 KP



XYCOM 3512KP OPERATOR PANEL WITH MONITOR



3410KP XYCOM MONITORS CRT REMANUFACTURED



XYCOM MONITOR 9460 KP



9460KP XYCOM MONITORS CRT REMANUFACTURED



XYCOM 3410KP USPP 3410KP
FREE 2 YR WARRANTY FREE US SHIPPING ON ORDERS OVER $100


XYCOM 3510-23H2144003100N USPP 351023H214400310
FREE 2 YR WARRANTY FREE US SHIPPING ON ORDERS OVER $100


Xycom 9712KP-HU Operator Interface Industrie PC IPC #D7303
From Germany


XYCOM Automation Operator Interface Screen Monitor 3512 KP 3512-23S214003100K



Xycom 3408KP PC104 industrial computer & HMI
From Canada

GENERAL ELECTRIC A03B-0819-C159 SERIES D, SEE DESC



Fanuc A03B-0819-C052 Analog Output Module NEW



FANUC A03B-0819-C057 NSPP A03B0819C057
FREE 2 YR WARRANTY FREE US SHIPPING ON ORDERS OVER $100


USED Fanuc AOA12F Output Module A03B-0819-C159