1746-NR4 

1、電機負載率低。

　　由于電動機選擇不當，富裕量過大或生產工藝變化，使得電動機的實際工作負荷遠小于額定負荷，大約占裝機容量30%~40%的電動機在30%~50%的額定負荷下運行，運行效率過低。

　　2、電源電壓不對稱或電壓過低。

　　由于三相四線制低壓供電系統單相負荷的不平衡，使得電動機的三相電壓不對稱，電機產生負序轉矩，增大電機的三相電壓不對稱，電機產生負序轉矩，增大電機運行中的損耗。另外電網電壓長期偏低，使得正常工作的電機電流偏大，因而損耗增大，三相電壓不對稱度越大，電壓越低，則損耗越大。

　　3、老、舊（淘汰）型電機的仍在使用。

　　這些電機采用E級絕緣，體積較大，啟動性能差，效率低。雖經歷年改造，但仍有許多地方在使用。

　　4、維修管理不善。

　　有些單位對電機及設備沒有按照要求進行維修保養，任其長期運行，使得損耗不斷增大。

C500-ID213 (3G2A5-ID213) OMRON INPUT UNIT

Omron AP001 Pro-Con Adapter C500-AP001

Omron Peripheral Interface IP004, C500-IP004

Omron C500-ID219 Input Module #10991

Omron Remote Master I/O Module C500-RM201 #8190

K74190 OMRON C500 Programmable Logic Controller PLC

C500-DA002 (3G2Q5-DA002) OMRON D/A UNIT  IN BOX

Omron C500-ID219 C500ID219 Input Module

OMRON C500-PRO13 Programming Console Free Ship

 Omron C500-ID218CN PLC Input Unit NIB 3G2A5-ID218CN

Omron C500-IP004-E Peripheral Interface 3G2A5-IP004-E

Omron C500-AP003 PRO-CON ADAPTER EXCELLENT CONDITION

Omron C500-OD412 OUTPUT MODULE 32POINT TRANSISTOR 48VDC

3G2A5-II002 Omron C500 Expansion I/O Interface Unit

Omron C500-ID218 C500ID218 Input Unit

Omron C500-OD213 Output Unit OD213 C500OD213

C500-OA226 OMRON OUPUT MODULE  IN BOX

Omron C500-LK009 C500LK009 PC Link Unit

 Omron Sysmac C500-IIOO2 3G2A5 PLC NIB

Omron SYSMAC C500-CT001 3G2A5-CT001 COUNTER UNIT 

Omron I/O Interface Unit C500-II002 #11004

OMRON PLC OUTPUT UNIT C500-OD412 3G2A5-OD412  BOX

OMRON INPUT MODULE 32 POINT 10 AMP 24VDC C500-ID218 

 Omron C500-II101 I/O Ctrl. Unit 3G2A5-II10 Sysmac

! Omron Sysmac C500H-OD412 PLC Output Unit NIB

OMRON C500-OD412/C500OD412 Output

Omron C500-PS221 C500PS221 CPU Power Unit

OMRON C500-RM001-V1 C500RM001V1  LOT OF 2

OMRON C500-II002 C500II002  LOT OF 2

OMRON C500-MP303 GRAPHIC PROGRAMING CONSOLE

 Omron Sysmac PLC C500-DUMO1 3G2A5 NIB 

 Omron Sysmac 3G2A5 C500-II001 Control Unit NIB

Omron C500-II101 I/O Control Unit PLC Module

Omron C500-ID218 C500ID218 Input Module

Omron C500-AP003 PRO-CON Adapter 3G2A5-AP003

Omron C500-OC221 Free Ship

C500-LK009-V1 (3G2A5-LK009-V1) OMRON LINK UNIT

Omron C500-BI081 C500BI081 3G2A5-BI081 Base Unit

Omron C500-PS222-E C500PS222E I/O Power Unit

Omron Control C500-ID218 INPUT UNIT-3G2A5-ID218

Omron C500-LK203 C500LK203 3G2A5-LK203 Host Link Unit

OMRON C500-RT002 Remote I/O Module 3G2A5-RT002-E

Omron Sysmac PLC C500-SP002 3G2A5-SP002 NIB

OMRON C500-LK009-V1/C500LK009V Host Link 

C500-II001 OMRON I/O CONTROL UNIT  IN BOX

Omron C500-BC081 3G2A5-BC081 Base

OMRON C500-RM201 I/O UNIT XLNT CONDITION

C500-OA222 (3G2A5-OA222) OMRON OUTPUT UNIT 

OMRON AP-003 C500-AP003 PRO-CON Adapter

Omron C500-PS222 C500PS222 I/O Power Unit

Omron C500-II001 C500II01 I/O Control Unit

Omron C500-II002 C500II002 3G2A5-II002 I/O Interface

Omron C500-OD412 C500OD412 3G2A5-OD412 Output Unit

K73129 LOT 3 Omron C500-ID219 Input Unit PLC Untested

OMRON C500-ID218 C500ID218  LOT OF 2

OMRON C500-ID218 C500ID218  LOT OF 5

OMRON C500-OD213 C500OD213 C500-0D213  LOT OF 2

C500-DA002 OMRON D/A UNIT