1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3
1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3
1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3
1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3 1734-RTB3
通常機(jī)床主軸電動機(jī)制動時，采用的是能耗制動方式，使電動機(jī)AB相輸入直流電源。
采用能耗制動方式使主軸電動機(jī)停止，主軸在低檔位低速旋轉(zhuǎn)時，大約需要0.5s，在高檔位高速旋轉(zhuǎn)時，大約需要2.5s。目前，采用的主軸電動機(jī)制動方法如圖1所示，先斷開KM1，再閉合開關(guān)KM2，從而斷開三相交流電源，接通直流電源，延時2.5s，認(rèn)定主軸電動機(jī)停止旋轉(zhuǎn)，然后進(jìn)行換刀或其它動作。
主軸以不同的速度旋轉(zhuǎn)時，采用能耗制動方式使主軸停止所需要的時間不同，采用同樣的能耗制動時間，延長無意義的加工輔助時間，降低了機(jī)床工作效率。另外，一旦開關(guān)KM2不能可靠閉合，或者直流電源保險斷開不能正常提供直流電，則主軸電動機(jī)只能在摩擦力的作用下減速，制動時間需要很長，但延時2.5s后，機(jī)床數(shù)控系統(tǒng)仍然認(rèn)定主軸電動機(jī)已經(jīng)停止旋轉(zhuǎn)，此時機(jī)床進(jìn)行換刀或其它動作容易造成事故。
因此，我們對機(jī)床主軸制動控制方式進(jìn)行了改進(jìn)設(shè)計，判斷主軸旋轉(zhuǎn)狀態(tài)，不采用延時2.5s，即認(rèn)定主軸電動機(jī)停止旋轉(zhuǎn)的控制方式，而是實時監(jiān)控主軸旋轉(zhuǎn)狀態(tài)，當(dāng)主軸旋轉(zhuǎn)低于一定轉(zhuǎn)速時，立即發(fā)出主軸停止完了信號。
2 主軸轉(zhuǎn)速監(jiān)測方案
在電動機(jī)的同步傳動軸上安裝一塊條形鐵片，和電動機(jī)同步旋轉(zhuǎn)，由接近開關(guān)對其檢測，每轉(zhuǎn)檢測到兩個脈沖信號，通過對脈沖信號的檢測而得知其轉(zhuǎn)速。檢測脈沖信號有兩種方案。
第一方案：在一定周期Tp內(nèi)讀取脈沖信號的個數(shù)N，PLC是一種順序控制器，它的程序是由前到后一步一步執(zhí)行，每執(zhí)行完一遍為一個掃描周期，然后從頭開始循環(huán)執(zhí)行。假如程序有2000步，每步執(zhí)行時間周期為30μs，則程序的掃描周期約60ms，掃描頻率約16Hz，能夠準(zhǔn)確檢測出的脈沖頻率應(yīng)低于8Hz，當(dāng)轉(zhuǎn)速的脈沖頻率大于16Hz，即轉(zhuǎn)速n≥480r/min時，PLC受其掃描頻率的影響，不能準(zhǔn)確檢測出脈沖的個數(shù)，情況不好時，會出現(xiàn)高速時檢測的脈沖個數(shù)很少，誤判為電動機(jī)基本停止而進(jìn)行下面動作，造成事故。此種方案只適用于主軸低速旋轉(zhuǎn)狀態(tài)的監(jiān)測。
第二種方案：檢測脈沖信號持續(xù)為“0”或“1”的時間T，當(dāng)n<60r/min時，發(fā)出主軸停止完了信號。由于PLC程序執(zhí)行過程的延時，數(shù)控系統(tǒng)收到主軸停止信號，并執(zhí)行下面動作時，主軸已完全停止旋轉(zhuǎn)，n=60r/min所對應(yīng)脈沖信號持續(xù)為“0”或“1”的時間T為0.25s，因此我們把檢測脈沖信號的計時器設(shè)定為0.25s。同樣高速時也會出現(xiàn)脈沖測不準(zhǔn)的情況，但不管情況多壞，在0.25s的時間內(nèi)“0”或“1”至少變化一次，因此可以準(zhǔn)確地判斷主軸是否停止旋轉(zhuǎn)。此方案可以適用于主軸高速或低速旋轉(zhuǎn)時主軸制動狀態(tài)的檢測。在實際應(yīng)用中，我們采用了此方案。
3 PLC實現(xiàn)主軸能耗制動的控制方法
PLC設(shè)計程序中，X20.0為轉(zhuǎn)速脈沖信號的輸入，M05為主軸停止信號，Y50.0為主軸停止完了信號。
兩個計時器TM1、TM2分別判斷X20.0脈沖信號持續(xù)為“0”或“1”的時間是否達(dá)到設(shè)定的時間，只要有一個時間到達(dá)，即R100.1或R100.2變“1”，導(dǎo)致R100.3變“1”，此時M05為“1”，導(dǎo)致Y50.0輸出“1”，則發(fā)出主軸制動完了信號，實現(xiàn)了主軸停止的準(zhǔn)確判斷。
本公司主營產(chǎn)品：
DCS集散式控制系統(tǒng)、PLC可編程控制器、數(shù)控系統(tǒng)、
(CPU處理器、模塊、卡件、控制器、伺服驅(qū)動、工作站、驅(qū)動器、
馬達(dá)、 內(nèi)存卡、 電源，機(jī)器人備件等)各類工控產(chǎn)品
主要業(yè)務(wù):
ABB DCS卡件
A-B 1756，1747，1785系列 PLC CPU，
Siemens 6DD，6FX，6SC，6FC，6S5系列，
Foxboro 系統(tǒng)卡件，
Triconex 系統(tǒng)模塊，
Rexroth 力士樂全系列產(chǎn)品，
Modicon 停產(chǎn)模塊 等各類工控產(chǎn)品
Schneider 施耐德 140系列PLC,CPU
Ovation 系統(tǒng)模塊
Emerson Control Techniques CMDX-005
CONTROL TECHNIQUES MIC-8207-B USPP MIC8207B
CONTROL TECHNIQUES UNIDRIVE UNI 2401 5.5KW motor drive controller
CONTROL TECHNIQUES PCM-22Q USPP PCM22Q
NEW CONTROL TECHNIQUES FOCUS 1 "M" CONTACTOR KIT MODEL 24009001
1983 GM OTC Tools & Techniques Computer Engine Controls
AVON ADVANCED TECHNIQUES FRIZZ CONTROL LOTUS SHIELD
CONTROL TECHNIQUES SSBAC010 NSFP SSBAC010
CONTROL TECHNIQUES DXE-316W USPP DXE316W
CONTROL TECHNIQUES SP1402 *WITHOUT FACE PLATE* UNIDRIVE SP AC SERVO DRIVE
CONTROL TECHNIQUES DXA-455 USPP DXA455
CONTROL TECHNIQUES PBBAA010 NSFP PBBAA010
CONTROL TECHNIQUES 960755-06 USPP 96075506
CONTROL TECHNIQUES SM-ETHERNET NSFP SMETHERNET
CONTROL TECHNIQUES FX-455 USPP FX455
Communication Techniques Inc. VCO-5310 Voltage Controlled Oscillator
CONTROL TECHNIQUES 95UMB300CACAA NSFP 95UMB300CACAA
CONTROL TECHNIQUES DIN1220075B USPP DIN1220075B
Project Management Planning and Control Techniques by Rory Burke (2003,...
INTERNATIONAL EDITION. Please read the condition note!!
CONTROL TECHNIQUES 02-766372-13 USPP 0276637213
CONTROL TECHNIQUES 2200-4075 USPP 22004075
CONTROL TECHNIQUES 2200-4040A USPP 22004040A
CONTROL TECHNIQUES 2761-4000 NSFP 27614000
CONTROL TECHNIQUES 1074-005 NSFP 1074005
CONTROL TECHNIQUES 1074-025 NSFP 1074025
CONTROL TECHNIQUES 1074-144 NSFP 1074144
CONTROL TECHNIQUES MSC-075 NSFP MSC075
CONTROL TECHNIQUES 2950-4100 NSFP 29504100
CONTROL TECHNIQUES SM-I/O-32 NSFP SMIO32
CONTROL TECHNIQUES 2900-4005 USPP 29004005
CONTROL TECHNIQUES 1074-026LAC NSFP 1074026LAC
CONTROL TECHNIQUES 1074-037 NSFP 1074037
CONTROL TECHNIQUES 1074-143LAC NSFP 1074143LAC
Control Techniques 2400-8001W-R Focus 1 DC Drive 120/240V ! WOW !
CONTROL TECHNIQUES DINVERTER DIN3380075B UNIDRIVE
CONTROL TECHNIQUES SSC-06 USPP SSC06
CONTROL TECHNIQUES 2200-4060 NSPP 22004060
I/O MODULE CNC CINCINNATI ARROW 500 ERE CONTROL TECHNIQUES I/O MODULE
CONTROL TECHNIQUES UNI-1402 USPP UNI1402
CONTROL TECHNIQUES XVM-6011-TONS-0000 NSFP XVM6011TONS0000
CONTROL TECHNIQUES PSBAZA NSFP PSBAZA
Control Techniques 8200-00065 Dynamic Breaking Resistor 71.6 Ohms 3426 Watts
Control Techniques 8200-00081 Dynamic Breaking Resistor 107.4 Ohms 2624 Watts
CONTROL TECHNIQUES CDII-220ICD USPP CDII220ICD
CONTROL TECHNIQUES DXA-205 USPP DXA205
NEW Advance Techniques Frizz Control with Lotus Shield -- Even In 97% HUMIDITY.
CONTROL TECHNIQUES 300301-11 NSPP 30030111
NEW Advance Techniques Lotus Shield Frizz Control Hair
Control Techniques Commander SE53402200 30HP AC Drive 22kW SE 33T *New in Box*
TOOLS & TECHNIQUES GM COMPUTERIZED ENGINE CONTROLS 1985
TOOLS & TECHNIQUES GM COMPUTERIZED ENGINE CONTROLS 1985
EMERSON Control Techniques SP2403 Unidrive 3-Phase AC Drive
CONTROL TECHNIQUES DIN1220075B USPP DIN1220075B
Emerson / Control Techniques SNCO-003 Cable NEW 810708-03
CONTROL TECHNIQUES SERVO MGE-455-CONS-0000 MOTOR
CONTROL TECHNIQUES 95DSD300HAAAA USPP 95DSD300HAAAA
NEW Control Techniques SKBD200110 Commander SK
Control Techniques Quantum 11 Digital DC Drive 9500-8201A 95008201A
CONTROL TECHNIQUES DXM-340C USPP DXM340C
3 Avon Advance Techniques Frizz Control Lotus Shield
CONTROL TECHNIQUES AXIMA0400 USPP AXIMA0400
Control Techniques Maxax 100 from a Cincinnati Milacron Arrow
Avon Advance Techniques FRIZZ CONTROL - Lotus Shield ~ 2 fl.oz.
CONTROL TECHNIQUES 142UME301CACAA USPP 142UME301CACAA
CONTROL TECHNIQUES MGE-208-CONS-0000 NSPP MGE208CONS0000
CONTROL TECHNIQUES 960755-06 NSPP 96075506
CONTROL TECHNIQUES 2450-9018 NSPP 24509018
CONTROL TECHNIQUES 810721-15 USPP 81072115
MINI MAESTRO 60 x 10/20 CONTROL TECHNIQUES
CONTROL TECHNIQUES RSR-2N USPP RSR2N
#SLS1C21 Control Techniques Servo Drive System SP1403 Unidrive #556WT
Control Techniques EI-205-00-007 Epsilon Indexing Drive
Defensive Tactics: Modern Arrest and Control Techniques
brand new - free shipping
CONTROL TECHNIQUES COMMANDER SE 11200037 230V 30 DAY WARRANTY
Control Techniques 4Q2/12 Small DC Drive good in condition for industry use
Lot of 2 Avon Advance Techniques Lotus Shield Frizz Control NEW
Inbligent Control Systems Using Computational Inbligence Techniques (IEE Co
KTK CONTROL TECHNIQUES 6M4Q7.5 Variable Speed Thyristor Control MD20 MD1 MD-430
SECO WARNER CONTROL TECHNIQUES, VC 55, 240vac 7A 1 ph b, 3 ph 3A out.
NEW CONTROL TECHNIQUES F3M224 CONTACTOR KIT M EMERSON
OTC TOOLS & TECHNIQUES GM ENGINE CONTROLS THRU 1985=**===
Advanced Techniques for Clearance of Flight Control Laws by Michiel Selier,...
100% Brand New! FREE Shipping! Buy with Confidence!
CONTROL TECHNIQUES SERVO DRIVE SP1403
OTC TOOLS & TECHNIQUES 1988 GM COMPUTER ENGINE CONTROL
CONTROL TECHNIQUES DCD140X816 NSPP DCD140X816
AIR TECHNIQUES Water Control Valve Transber 110V
CONTROL TECHNIQUES ECI-44 USPP ECI44
CONTROL TECHNIQUES 24V I/O MODULE 9410-000610 CINCINNATI ARROW 500 ERE 4
OTC TOOLS & TECHNIQUES FORD ENGINE CONTROLS THROUGH 86**
I/O MODULE CNC CINCINNATI ARROW 500 ERE CONTROL TECHNIQUES I/O MODULE
2 Avon Advanced Techniques Frizz Control Lotus Shield 2oz
CONTROL TECHNIQUES SP1402 *WITHOUT FACE PLATE* UNIDRIVE SP AC SERVO DRIVE
CONTROL TECHNIQUES EMERSON EN-204 960500-10 DRIVE
The Control Techniques Drives and Controls Handbook
DRIVE 125HP 75KW 3PHASE by CONTROL TECHNIQUES
Control techniques unimotor UM 115UMD300CBCAA
CONTROL TECHNIQUES CFCS-050 USPP CFCS050
CONTROL TECHNIQUES MIC8206 USPP MIC8206
CONTROL TECHNIQUES MIC8208 USPP MIC8208
CONTROL TECHNIQUES DDS-001 USPP DDS001
Control Techniques Advanced Indexing Module FM-3
CONTROL TECHNIQUES 2200-JN USPP 2200JN
Control techniques unimotor UM 115UMD300CBCAA
Inbligent Control Systems Using Computational Inbligence Techniques (IEE Co
CONTROL TECHNIQUES 95DSB301CAAAA USPP 95DSB301CAAAA
CONTROL TECHNIQUES 2400-4000 USPP 24004000
CONTROL TECHNIQUES CDII-POD USPP CDIIPOD
Control-Techniques-2510
CONTROL TECHNIQUES DIN338040B DINVERTER 5.3 HP (NEW!)
1 NIB CONTROL TECHNIQUES 2400-8001 DC DRIVE Q10-6
CONTROL TECHNIQUES EMERSON ALP-130 POWER SUPPLIES LOT OF 2
2 Avon Advanced Techniques Frizz Control Lotus Shield
Control Techniques Commander Drive SE23400075
Control Techniques Dynamic Braking Unit CDII DBU STDH14
CONTROL TECHNIQUES M25R-14ICD USPP M25R14ICD
NEW Control Techniques SKBD200110 Commander SK
CONTROL TECHNIQUES COMMANDER SE 23400220 2.2kW AC DRIVE
CONTROL TECHNIQUES STIEIO NSFP STIEIO
Control-Techniques-2573
CONTROL TECHNIQUES 3F480-010.231 EMC FILTER 10A ***XLNT***
Control Techniques 8200-00082
OTC TOOLS & TECHNIQUES GM ENGINE CONTROLS 1988-**--------
OTC TOOLS & TECHNIQUES 1989 GM COMPUTER ENGINE CONTROLS**
OTC TOOLS & TECHNIQUES 1986 GM COMPUTER ENGINE CONTROLS**
Avon Advance Techniques Frizz Control Lotus Shield 2oz
CONTROL TECHNIQUES 60-0P1024A-100 USPP 600P1024A100
NEW 190UMD301CACAA CONTROL TECHNIQUES SERVO MOTOR WITH BRAKE
CONTROL TECHNIQUES 2450-8000 NSPP 24508000
CONTROL TECHNIQUES 2400-9002 NSFP 24009002
CONTROL TECHNIQUES 191760-01 USPP 19176001
CONTROL TECHNIQUES 2600-8001 USPP 26008001
CONTROL TECHNIQUES 02-766475-01 USPP 0276647501
CONTROL TECHNIQUES 200XS25/50 USPP 200XS2550
CONTROL TECHNIQUES PCM-6 USPP PCM6
CONTROL TECHNIQUES ASP-6 USPP ASP6
Control Techniques M45-14ICD Mentor II Drive 20HP ! NEW !
Control Techniques M25-14ICD Mentor II Drive 10HP ! NEW !
CONTROL TECHNIQUES M45R-14ICD USPP M45R14ICD
CONTROL TECHNIQUES SE2D200150 NSFP SE2D200150
CONTROL TECHNIQUES STDO07 USPP STDO07
Control Techniques Dynamic Braking Unit CD2DBU NEW
Computational Techniques for Voltage Stability Assessment And Control by...
INTERNATIONAL EDITION. Please read the condition note!!
Control Techniques Quantum III User Guide Manual
CONTROL TECHNIQUES 29508000U USPP 29508000U
Control Techniques CT 4Q2/12 Small DC Drive Board Free Shipping Worldwide
CT Control Techniques inverter SE11200037 SE1M
CONTROL TECHNIQUES 3130-0377 USPP 31300377
Avon Advance techniques Frizz Control hair treatment
CONTROL TECHNIQUES TDS-015 USPP TDS015
CONTROL TECHNIQUES CMMS-025 USPP CMMS025
Control-Techniques-9500-8302
UNIDRIVE CONTROL TECHNIQUES
CONTROL TECHNIQUES DX-316 USPP DX316
CONTROL TECHNIQUES 861115-50 USPP 86111550
Control Techniques 810767-05 5' Extension Cable
CONTROL TECHNIQUES DCN-93400 USPP DCN93400
CONTROL TECHNIQUES CMDS-025 NSFP CMDS025
CONTROL TECHNIQUES SERVO MODULE
CONTROL TECHNIQUES RSR-2N USPP RSR2N
CONTROL TECHNIQUES SE33400750 NSFP SE33400750
CONTROL TECHNIQUES FX-340 USPP FX340
CONTROL TECHNIQUES NTE-330-CBNS-0000 USPP NTE330CBNS0000
CONTROL TECHNIQUES PCM-5 USPP PCM5
CONTROL TECHNIQUES 9500-4030 NSPP 95004030
CONTROL TECHNIQUES EB49DMTCI NSPP EB49DMTCI
CONTROL TECHNIQUES 2400-4000 NSPP 24004000
Control-Techniques-CD75K
Control-Techniques-CD150K
NEW - Techniques of Model-Based Control
CONTROL TECHNIQUES 6180-8110 USPP 61808110
CONTROL TECHNIQUES DXE-4120CB USPP DXE4120CB
Control Techniques Commander CD
AVON Advanced Techniques Frizz Control Conditioner
CONTROL TECHNIQUES SK2403 USPP SK2403
Control Techniques UNI1401 Unidrive 0.75KW Emerson
CONTROL TECHNIQUES ES-20-500 USPP ES20500
AVON Advanced Techniques Frizz Control Lotus Shield 2.0oz
Control Techniques Power supply C80021/3.00, Cincinnati Milacron Arrow
ST443RS-6 Control Techniques / Emerson Motor
CONTROL TECHNIQUES APC-006 NSFP APC006
Control Techniques CT CDE550 CTS001 5.5KW NEW Free Ship
Control-Techniques-CD75
3 HP Control Techniques Dinverter DIN3220220B #6737LR
AVON Advanced Techniques Frizz Control Shampoo
The Control Techniques Drives and Controls Handbook
FX-455 Emerson Control Techniques
FX-340 Emerson Control Techniques
CONTROL TECHNIQUES MHE-4120-CONS-0000 USPP MHE4120CONS0000
VALERON DIGITAL TECHNIQUES MODEL 722-1147 1183 20HP/110V 2-WAY LIMIT CONTROLLER
Control Techniques Dynamic Breaking Unit
Control Techniques DXE-4120W
CONTROL TECHNIQUES 6180-4020 USPP 61804020
Control Techniques Commander Drive SE23400220
Air Techniques A/T2000-Plus 44415M Control Display Unit
CONTROL TECHNIQUES MGE-4120-CONS-0000 USPP MGE4120CONS0000
NEW CONTROL TECHNIQUES SERVO DRIVE MD-407-00-000
Control Techniques Axima 4000 AX-4000-00-00-030 *Test*
UD51 Unidrive Application 2nd Encoder (UD51) E/W 282000 Control Techniques
Control Techniques CDL05 Drive 5HP ! WOW !
Control Techniques PBBAA-030 Cable NEW
AIR TECHNIQUES Water Control Valve Transber 110V
CONTROL TECHNIQUES FX-208 USPP FX208
CONTROL TECHNIQUES 22004070 USPP 22004070
UD51 Unidrive Application 2nd Encoder (UD51) E/W 285517 Control Techniques
Control Techniques Emerson UNIDRIVE SP2402 SP 2402
Avon Advance Techniques frizz Control Lotus Shield - 60ml/2 fl oz
CONTROL TECHNIQUES SMDEVICENET USPP SMDEVICENET
Control Techniques HB017 AC Spindle Drive 460V ! WOW !
CONTROL TECHNIQUES M45R-14ICDQ USPP M45R14ICDQ
CONTROL TECHNIQUES CD550K-R USPP CD550KR
CONTROL TECHNIQUES DXM-316W NSFP DXM316W
CONTROL TECHNIQUES M45R-14-M USPP M45R14M
CONTROL TECHNIQUES PCM-15 USPP PCM15
CONTROL TECHNIQUES F3R5E USPP F3R5E
CONTROL TECHNIQUES FM-4PB NSFP FM4PB
CONTROL TECHNIQUES 2400-8000 USPP 24008000
CONTROL TECHNIQUES 142UMC300-CAGAA NSFP 142UMC300CAGAA
Control Techniques Dinverter DIN3380300B
CONTROL TECHNIQUES 1074-137 NSFP 1074137
CONTROL TECHNIQUES 2200-4000 NSFP 22004000
CONTROL TECHNIQUES 9200-0067 USPP 92000067
Control Techniques F3R5CR DC Drive 5HP 230V
CONTROL TECHNIQUES 2950-8001 USPP 29508001
CONTROL TECHNIQUES I/O MODULE POWER MODULE 24V FUSE CNC
Control Techniques' Drives & Controls Handbook (Iee Power & Energy Series, 35),
CONTROL TECHNIQUES SMUNIENCODER NSFP SMUNIENCODER
CONTROL TECHNIQUES UNIDRIVE V3 Size 5 ControlModule HW2
CONTROL TECHNIQUES 1590-4240 USPP 15904240
CONTROL TECHNIQUES 9200-0028 USPP 92000028
CONTROL TECHNIQUES 9300-5000 USPP 93005000
CONTROL TECHNIQUES 2950-8003 USPP 29508003
CONTROL TECHNIQUES 2950-8400 USPP 29508400
CONTROL TECHNIQUES 320C-03 USPP 320C03
CONTROL TECHNIQUES 6041-8001 USPP 60418001
CONTROL TECHNIQUES 810548-25 NSFP 81054825
CONTROL TECHNIQUES 960113-04 USPP 96011304
CONTROL TECHNIQUES CFOCS-050 USPP CFOCS050
CONTROL TECHNIQUES DD-075 USPP DD075
CONTROL TECHNIQUES INL602 USPP INL602
CONTROL TECHNIQUES SKA1200025 NSFP SKA1200025
CONTROL TECHNIQUES SKB3400055 NSFP SKB3400055
CONTROL TECHNIQUES SX23400400PB NSFP SX23400400PB
CONTROL TECHNIQUES V150ICD USPP V150ICD
CONTROL TECHNIQUES 1590-4107 USPP 15904107
Control Techniques UNI1402, Used, UNI1402, Fast Shipping
CONTROL TECHNIQUES SIBAH020 USPP SIBAH020
CONTROL TECHNIQUES 960755-06 NSFP 96075506
CONTROL TECHNIQUES EMERSON EI-DN-202-00-000
Control Techniques Worldwide DCN 92598 DCN92598 Control Pod
CONTROL TECHNIQUES 960098-47 USPP 96009847
