1756-PA72

1756-PA72电机为什么不宜轻载运行？

电机轻载运行时，会造成：

（1）电机功率因数低；

（2）电机效率低， 会造成设备浪费，运行不经济。

电机过热的原因有哪些？

（1）负载过大；

（2）缺相；

（3）风道堵塞；

（4）低速运行时间过长；

（5）电源谐波过大。

 久置不用的电机投入前需要做哪些工作？

（1）测量定子、绕组各相间及绕组对地绝缘电阻。

绝缘电阻R应满足下式：

R＞Un/(1000+P/1000)(MΩ)

Un：电机绕组额定电压（V）

P：电机功率（KW）

对于Un＝380V的电机，R＞0.38MΩ。

如绝缘电阻低，可：

a：电机空载运行2～3h烘干；

b：用10%额定电压的低压交流电通入绕组或将三相绕组串联后用直流电烘，保持电流在50%的额定电流；

c：用风机送入热空气或加热元件加热。

（2）清理电机。

（3）更换轴承润滑脂。

1756-PA72 

1756-PA72

REXROTH INDRAMAT BZM01.3-01-07 SERVO CONTROL 

REXROTH INDRAMAT CCD01.1-KE00-01 RACK 4 SLOT 

REXROTH INDRAMAT CCD01.1-KE02-01-FW MOTION CONTROLLER W/PLUG-IN FRAME WO/FIRMWARE 

REXROTH INDRAMAT CCD01.1KE19-01FW SERVO DRIVE 

REXROTH INDRAMAT CCD01.1-KE20-01-FW SERVO CONTROLLER 

REXROTH INDRAMAT CLC-D02.2 PC BOARD 

REXROTH INDRAMAT CLC-D02.2A-FW CARD SERIAL COMMUNICATION 

REXROTH INDRAMAT CLC-D02.3 MODULE INPUT CARD 

REXROTH INDRAMAT CLC-D02.3-FW MODULE INPUT CARD 

REXROTH INDRAMAT CLC-D02.3M-FW CONTROL CARD W /FIBER OPTIC 

REXROTH INDRAMAT CLC-V02.3C-FW SERVO CONTROL VMEBUS CLC W/40 AXIS GPS FIRMWARE 

REXROTH INDRAMAT CLM-01.2 CONTROL MODULE 

REXROTH INDRAMAT CLM01.2-A CONTROL MODULE 2 AXIS MOK II 

REXROTH INDRAMAT CLM01.2-A-E 2 AXIS CONTROLLER 

REXROTH INDRAMAT CLM012E AXIS CONTROL 

REXROTH INDRAMAT CLM01.3-X-0-2-0 CONTROLLER 

REXROTH INDRAMAT CLM01.3-X-0-2-0-FW SERVO CONTROLLER 

REXROTH INDRAMAT DDS03.1-W/030-R SERVO DRIVE AC 30AMP RESOLVER FEEDBACK 

REXROTH INDRAMAT DDS031W050D AC SERVO DRIVE 

REXROTH INDRAMAT DDS2.1-A150-D SERVO CONTROLLER 

REXROTH INDRAMAT DDS21A200D MODULE 

REXROTH INDRAMAT DDS2.1-W/025-D SERVO CONTROL AC 

REXROTH INDRAMAT DDS2.1-W/050-D SERVO CONTROL AC W/DDS-1 SERCOS ETHERNET IN SLOT1 

REXROTH INDRAMAT DDS2.1-W/100-D SERVO DRIVE CONTROLLER AMPLIFIER 

REXROTH INDRAMAT DDS2.1-W/150-D SERVO CONTROLLER AC 

REXROTH INDRAMAT DDS2.1-W/200-D SERVO DRIVE 200AMP 

REXROTH INDRAMAT DDS22W100BE1200 DRIVE 

REXROTH INDRAMAT DDS3.1-W/030-D SERVO CONTROLLER 

REXROTH INDRAMAT DDS3.1-W/030-R SERVO DRIVE AC 30AMP RESOLVER FEEDBACK 

REXROTH INDRAMAT DEA04.1 I/O MODULE/INTERFACE FOR PLC 15INPUT 16OUTPUT 

REXROTH INDRAMAT DEA04.2 PLUG IN I/O CARD 

REXROTH INDRAMAT DEA28.1 I/O MODULE ISOLATED 32IN 24OUT 

REXROTH INDRAMAT DEA4.2 I/O DIGITAL INTERFACE CARD 

REXROTH INDRAMAT DEA05.2 PC BOARD 

REXROTH INDRAMAT DEF01.1 INCREMENTAL POSITION MODULE 

REXROTH INDRAMAT DEP0000116 Item 

REXROTH INDRAMAT DG-1604 5000 PPR ENCODER 

REXROTH INDRAMAT DIV-03-0100 CABLE ASSEMBLY 3.1 METERS 

REXROTH INDRAMAT DIV-04-0502 CABLE ASSEMBLY 3.1 METERS 

REXROTH INDRAMAT DKC0.1-040-7-FW SERVO CONTROL 

REXROTH INDRAMAT DKC01.1-030-3-FW DRIVE SERVO CONTROLLER DIGITAL AC 

REXROTH INDRAMAT DKC01.1-040-7-FW SERVO DRIVE CONTROL 

REXROTH INDRAMAT DKC01.3-040-7-FW SERVO DRIVE 3PH 40AMP 700VDC W/PARALLEL INTERFACE 

REXROTH INDRAMAT DKC01.3-100-7-FW SERVO DRIVE AC 

REXROTH INDRAMAT DKC0132007FW CONTROL 

REXROTH INDRAMAT DKC01.3-LK-EAK02 INTERFACE CARD 

REXROTH INDRAMAT DKC02.1-040-7-FW SERVO DRIVE 40AMP 700VDC 

REXROTH INDRAMAT DKC0230407FM CONTROL 

REXROTH INDRAMAT DKC02.3-040-7-FW SERVO DRIVE ECO DRIVE W/SERCOS INTERFACE 

REXROTH INDRAMAT DKC0231007FW DRIVE CONTROL 

REXROTH INDRAMAT DKC03.1-040-7-FW SERVO CONTROLLER DIGITAL AC 

REXROTH INDRAMAT DKC03.3-040-7-FW SERVO DRIVE PROFIBUS DP INTERFACE ECO 

REXROTH INDRAMAT DKC0331007FW UNIT 

REXROTH INDRAMAT DKC03.3-LK-PBK02 INTERFACE CARD 

REXROTH INDRAMAT DKC04.3-LK-ITB01 INTERFACE CARD 

REXROTH INDRAMAT DKC0630407FW CONTROLLER 

REXROTH INDRAMAT DKC0631007FW DRIVE 

REXROTH INDRAMAT DKC06.3-LK-DVN01 INTERFACE CARD 

REXROTH INDRAMAT DKC10.3-012-3-MGP-01VRS SERVO DRIVE 12AMP 300VDC MULTI INTERFACE GEN PURPO 

REXROTH INDRAMAT DKC1.1-030-3 DIGITAL AC SERVO CONTROLLER 

REXROTH INDRAMAT DKC110303FW DRIVE 

REXROTH INDRAMAT DKC1.1-040-7-FW SERVO CONTROL AC ECODRIVE 

REXROTH INDRAMAT DKC-11-100-7-FW SERVO DRIVE 

ALLEN BRADLEY S5-104 

ALLEN BRADLEY 872C-D10CP30-D4 

ALLEN BRADLEY 836T-T261JX23-X?9 

ALLEN BRADLEY 836T-T253JX81-X?15

ALLEN BRADLEY 836-C7A 

ALLEN BRADLEY 802T-W3C 

ALLEN BRADLEY 802T-D 

ALLEN BRADLEY 802T-APZLF 

ALLEN BRADLEY 802M-AZJ1LF 

ALLEN BRADLEY 802B-SSAR1XSX 

ALLEN BRADLEY 800T-QB24W 

ALLEN BRADLEY 800T-QA24 

ALLEN BRADLEY 800T-PT16C 

ALLEN BRADLEY 800T-J20KC1B 

ALLEN BRADLEY 800T-H32A 

ALLEN BRADLEY 800T-FXQ10RA1 

ALLEN BRADLEY 800T-D2D2 

ALLEN BRADLEY 800T-CXA2 

ALLEN BRADLEY 800T-CHG16D1 

ALLEN BRADLEY 800T-CA2A 

ALLEN BRADLEY 800T-B1 

ALLEN BRADLEY 800H-JR2 

ALLEN BRADLEY 800EP-PLM3D5 

ALLEN BRADLEY 800EA-ML1 

ALLEN BRADLEY 800E-MSJ22

ALLEN BRADLEY 800E-MLF53DL3AX?11 

ALLEN BRADLEY 800E-AMRG N

ALLEN BRADLEY 800E-3TL5R 

ALLEN BRADLEY 800E-2DL3RX11 

ALLEN BRADLEY 700-HT12BA1