IC693MDL730RR進(jìn)口原裝
IC693MDL730RR 變頻器缺相故障除了輸入缺相外,還有一種是輸出缺相,這將直接導(dǎo)致電機(jī)缺相運(yùn)行。缺相時(shí),電機(jī)靜止時(shí)啟動(dòng),電機(jī)就轉(zhuǎn)不起來。若是在運(yùn)行中缺相十分危險(xiǎn),電機(jī)電流增大1.2倍,發(fā)熱嚴(yán)重,震動(dòng)加劇,急易燒壞電機(jī)。變頻器通過檢測(cè)輸出電流,就可以判斷三相輸出是否缺相。 變頻器輸入缺相的檢測(cè)方法 當(dāng)變頻器不發(fā)生缺相的正常情況下工作時(shí),Udc上的電壓如圖2所示,一個(gè)工頻周期內(nèi)將有6個(gè)波頭,此時(shí)直流電壓Udc將不會(huì)低于470V,實(shí)際上對(duì)于一個(gè)7.5kW的變頻器而言,其C的值大小一般為900uf,當(dāng)滿載運(yùn)行時(shí),可以計(jì)算出周期性的電壓降落大致為40V,紋波系數(shù)不會(huì)超過7.5%。而當(dāng)輸入缺相發(fā)生時(shí),一個(gè)工頻周期中只有2個(gè)電壓波頭,且整流電壓低值為零。此時(shí)在上述條件下,可以估算出電壓降落大致為150V,紋波系數(shù)要達(dá)到30%左右。
IC693MDL730RR
03101-08-256N ARGUS
P25V-6R00PD-XBN-15 PRESSURE TRANSMITTER TAVIS CORPORAT
C4DK1150 VALVE SKINNER VALVE DIVISION
SDN20-24-100P SOLA
05-7 MECHANICAL RELAY SCIENTIFIC TECHNOLOGIES
TSXCAY21 SCHNEIDER AUTOMATION
RME02.2-32-DC024 INDRAMAT INPUT MODULE
RMA02.2-16-AC230-200 INDRAMAT OUTPUT MODULE
FGSS 900-211 SICK LIGHT CURTAIN
RMB02.2-04 INDRAMAT BASE CHASSIS MODULE
AL2001E20 NORTEL ETHERNET SWITCH MODULE
BTL5-G11-M0178-Z-S32 BALLUFF TRANSDUCER
LAH45EMZ-K1 NSK LINEAR GUIDE
BTL5-A11-M0152-Z-S32 BALLUFF
8520-PS2B ALLEN BRADLEY POWER SUPPLY
3V4160 RELIANCE AC DRIVE
A05B-2350-C903 FANUC COOLING UNIT
A2T15T40XPK4NNIB DYNICS MONITOR
MG-16-0F1-AU-M0-DC/1 PINNACLE SCREEN SYSTEM
8520-RIOM1 ALLEN BRADLEY MODULE
D9MM-11A FANUC MONITOR
SLD-12-1010-12T SOLA POWER SUPPLY
Z5B20 ABBOTT TECHNOLOGIES POWER SUPPLY
SDN-20-24-200 SOLA POWER SUPPLY
KF-M7099H FANUC MONITOR
1394-SR9A ALLEN BRADLEY SHUNT MODULE
SLS-24-048T SOLA POWER SUPPLY
VAMP-LT ZEBRA MONITOR
A06B-6077-H130 FANUC SERVO POWER SUPPLY MODULE
2711-B6C16 ALLEN BRADLEY OPERATOR INTERFACE
DKC04.3-040-7-FW INDRAMAT ECO DRIVE
DKC02.3-40-7-FW INDRAMAT ECO DRIVE
HU361AWKEI SQUARE D CIRCUIT BREAKER
1MR376A-B226 BOSCH REXROTH ROTOR
1FE1114-6WT11-1BC2 SIEMENS SPINDLE MOTOR
KCL34225 SQUARE D CIRCUIT BREAKER
1MS376A-QB-A2-S010 BOSCH REXROTH STATOR
NJHL36600E20 SCHNEIDER AUTOMATION CIRCUIT BREAKER
PD1G1A1AAN INGERSOLL-RAND CONTROLLER
971100-1 SOLARTRON PROBE *NEW*
MDD090C-N-030-N2L-110GB0 INDRAMAT
TVM2.1-50-220/300-W1-115/220 INDRAMAT
8200C1307 ALLEN BRADLEY
800T-PA 16 D1 ALLEN BRADLEY