1、Common DC-BusMotion & Drives TrainingSelect & Connect GuideLexium32 Altivar32Motion & Drives TrainingRudolf FautzIndustry Business / Machine SolutionsL3 Expert SupportResponsible for: All motion productsBiographyplaceholderfor apicture3Schneider Electric- Motion & Drives training - C

2、ommon DC-Bus Common DC-BusSelect & Connect GuideSafety instructionsWiring DC-BusSimple DiagramWhy “DC-Bus sharing” ?Basic considerationsCommon DC-Bus Lexium32ExersicesSummary “Golden Rules”Common DC-Bus Lexium32 & Altivar32ExersicesSummary “Golden Rules”Common DC-Bus Lexium32 & 3rd party

3、 devicesSummary “Golden Rules”4Schneider Electric- Motion & Drives training - Common DC-Bus Common DC-BusSelect & Connect GuideCommon DC-Bus Altivar32 & Altivar32ExersicesSummary “Golden Rules”Common DC-Bus Altivar32 & 3rd party devicesExersicesSummary “Golden Rules”Common DC-Bus Alt

4、ivar71Examples of real customer applicationsLexium32 Altivar32 ( customer cefla)Lexim32 Lexium32 ()Lexim32 3rd party device ()Altivar32 Altivar32 (.)Altivar32 3rd party device (.)Altivar71 - ?Solution of exercises5Schneider Electric- Motion & Drives training - Common DC-BusElectrical installatio

5、nSafety instructionsPlease observe the following safety regulations when working on electrical equipment:Disconnect device from supply voltage. Secure the device against accidental reactivation (and attach a “DO NOT SWITCH ON” sign to the switch).Verify that parts are free of voltage. Cover or block

6、 adjacent system parts that are still live.WAIT FOR 15 MINUTES (discharge the DC bus capacitors)Measure the voltage between PA/+ and PC/- and check that it is Safety instructionsWiring DC-BusSimple DiagramWhy “DC-Bus sharing” ?Basic considerationsCommon DC-Bus Lexium32ExersicesSummary “Golden Rules”

7、Common DC-Bus Lexium32 & Altivar32ExersicesSummary “Golden Rules”Common DC-Bus Lexium32 & 3rd party devicesSummary “Golden Rules”7Schneider Electric- Motion & Drives training - Common DC-BusElectrical installationWiring DC-BusDC-Bus connector coding: The connectors are coded. If you do n

8、ot use pre-assembled cables, verify that the crimp contacts properly snap into the connector. Verify that PA/+ is connected to PA/+ and PC/- is connected to PC/-. Incorrect wiring will destroy the devices.8Schneider Electric- Motion & Drives training - Common DC-BusElectrical installationWiring

9、DC-BusConnector lock: The connector has a snap lock mechanism. 9Schneider Electric- Motion & Drives training - Common DC-BusElectrical installationWiring DC-BusAltivar32:10Schneider Electric- Motion & Drives training - Common DC-BusElectrical installationWiring DC-BusAltivar32:Pre-assembled

10、DC-Bus cables ( 20cm with shielding) 12Schneider Electric- Motion & Drives training - Common DC-BusElectrical installationWiring DC-BusLexium32:Open end DC-Bus cables ( 20cm with shielding) 13Schneider Electric- Motion & Drives training - Common DC-BusElectrical installationWiring DC-Bus* Ma

11、x. DC-Bus cable length between 2 devices - due to impedance effects, avoiding oscillations, etcThere is no further restriction (in respect to the general fusing) referring to the complete cable length of all dc-bus-connected devices. *14Schneider Electric- Motion & Drives training - Common DC-Bu

12、sElectrical installationWiring DC-BusFirmware version:15Schneider Electric- Motion & Drives training - Common DC-Bus Common DC-BusSelect & Connect GuideSafety instructionsWiring DC-BusSimple DiagramWhy “DC-Bus sharing” ?Basic considerationsCommon DC-Bus Lexium32ExersicesSummary “Golden Rules

13、”Common DC-Bus Lexium32 & Altivar32ExersicesSummary “Golden Rules”Common DC-Bus Lexium32 & 3rd party devicesSummary “Golden Rules”16Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusSelect & Connect GuideThe DC-Bus connection is on the mains side of the charge

14、circuit, therefore every Lexium32 and Altivar32 drive uses its own circuit.DC-Bus - A simple diagram:17Schneider Electric- Motion & Drives training - Common DC-Bus Common DC-BusSelect & Connect GuideSafety instructionsWiring DC-BusSimple DiagramWhy “DC-Bus sharing” ?Basic considerationsCommo

15、n DC-Bus Lexium32ExersicesSummary “Golden Rules”Common DC-Bus Lexium32 & Altivar32ExersicesSummary “Golden Rules”Common DC-Bus Lexium32 & 3rd party devicesSummary “Golden Rules”18Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusSelect & Connect GuideWhy DC-Bus

16、 Sharing“ ?A drive system requires energy for acceleration or constant movement. During deceleration, a motor acts as a generator. A considerable portion of the kinetic energy is re-generated as electrical energy. Since electrical energy can only be stored to a limited extent in a single drive, it u

17、ses a braking resistor to transform the excess energy into thermal energy. Energy savings because of energy balance“ Opportunity of sharing internal breaking resistors and capacitors Less space and heat in the electical cabinet (no external breaking resistors)- increasing of energy efficiency !Optim

18、um situation is during anti-cyclical operation, i.e. one motor decelerates while another motor accelerates at the same time.19Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusSelect & Connect GuideWhen DC-Bus Sharing“ ?Benefit if: anti-cyclical operation (e.g.: windin

19、g unwinding application) no identical motion profiles or movements high dynamic movements / speed / loadNo Benefit if: identical movements (all axis accelerate / decelerate at the same time) low dynamic movements / speed / loadNote:DC-Bus Sharing does not make sense in all applications !Click for de

20、tails:Click for details:20Schneider Electric- Motion & Drives training - Common DC-Bus Common DC-BusSelect & Connect GuideSafety instructionsWiring DC-BusSimple DiagramWhy “DC-Bus sharing” ?Basic considerationsCommon DC-Bus Lexium32ExersicesSummary “Golden Rules”Common DC-Bus Lexium32 &

21、Altivar32ExersicesSummary “Golden Rules”Common DC-Bus Lexium32 & 3rd party devicesSummary “Golden Rules”21Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusSelect & Connect GuideBasic considerations Power supply: mains power single phase three phase supply via DC-B

22、us Main fuses single phase max. 25A three phase max. 32A DC-Bus fuses Accessories22Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusSelect & Connect GuideLexium32 Lexium32Lexium32 Lexium32Lexium32 Altivar32Lexium32 ? (3rd party device)Back to main contents23Schneider

23、Electric- Motion & Drives training - Common DC-BusCommon DC-BusSelect & Connect GuideAltivar32 Altivar32Altivar32 ? (3rd party device)Altivar71 ?24Schneider Electric- Motion & Drives training - Common DC-Bus Common DC-BusSelect & Connect GuideSafety instructionsWiring DC-BusSimple Di

24、agramWhy “DC-Bus sharing” ?Basic considerationsCommon DC-Bus Lexium32ExersicesSummary “Golden Rules”Common DC-Bus Lexium32 & Altivar32ExersicesSummary “Golden Rules”Common DC-Bus Lexium32 & 3rd party devicesSummary “Golden Rules”25Schneider Electric- Motion & Drives training - Common DC-

25、BusCommon DC-BusLexium32 Lexium32Back to main pageDC-Bus sharing: Lexium32 Lexium3226Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pageBasic considerations LXM32 LXM32:Single PhasePower supply: 25 A 25 A32 A 25 AMain Fuse : 25A / 32A ?Max.

26、 25/32ADoneYesNo28Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pageMain power supply:Single PhaseThree PhaseNote: Only drives with identical nominal voltages may be connected via a common DC bus. Only drives with the same number of phases

27、 may be connected via a common DC bus. Only connect the DC bus of: three-phase drives and three-phase drives or single-phase drives and single-phase drives. Single phase drives must be connected to the same mains phase. Dont mix phases!29Schneider Electric- Motion & Drives training - Common DC-B

28、usCommon DC-BusLexium32 Lexium32Back to main pageMain fuse:Single PhaseMain circuit breakerLXM32MDxxM2 DC +DC -What about Lexium32 drive data ?How to determine max input current ?LXM32MDxxM2 LXM32MDxxM2 30Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32B

29、ack to main pageMain fuse restriction:NOTE: Single phase devices: max. upstream fuse 25AThree phase devices: max. upstream fuse 32AWHY ?The internal interfaces/connectors are certified and validated for this max values. A higherCurrent could destroy and eventually burn the device ! CONCLUSION:Ensure

30、 that in any situation the connectors are fused with max 25A/32A- e.g. short circuit31Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pageSingle Phase25ALXM32DC +DC -LXM32LXM32Main fuse restriction:I max = 25A32Schneider Electric- Motion &am

31、p; Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pageSingle Phase25ALXM32DC +DC -LXM32LXM32Main fuse restriction:25A25AI max 25A25A25A25A33Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main page34Schneider Electric-

32、Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main page35Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pageCommon main fuse:Single PhaseMain circuit breaker (max 25A)LXM32MD18M2(1,0kW) DC +DC -(8,4A)(max

33、.6A)(8,4A)(max.6A)(8,4A)(max.6A)LXM32MD18M2(1,0kW) LXM32MD18M2(1,0kW) 36Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pageSeparate main fuses:Single PhaseLXM32MD18M2(1,0kW) DC +DC -(8,4A)(max.6A)(8,4A)(max.6A)(8,4A)(max.6A)LXM32MD18M2(1,0k

34、W) LXM32MD18M2(1,0kW) 10A10A10A25A37Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pageSeparate main fuses:Single PhaseLXM32MD18M2(1,0kW) DC +DC -(8,4A)(max.6A)(8,4A)(max.6A)(8,4A)(max.6A)LXM32MD18M2(1,0kW) LXM32MD18M2(1,0kW) 10A10A10A38Sch

35、neider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Power supply via DC-Bus: Basic considerationDC-Bus inputPower supply:Main Fuse : DC-Bus Fuse :Calculation nom. DC-Bus power(summary of all devices)Switch off Power mainsmonitoringUpstream current 25A / 32A ?Ma

36、x. 25/32ADoneYesNoCompatible DC-Bus voltage 1/3 39Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pagePower supply via DC-Bus:Single PhaseLXM32MD18M2(1,0kW) DC +DC -(8,4A)? kW(8,4A)LXM32MD18M2(1,0kW) LXM32MD18M2(1,0kW) 10A10A? kW? kW40Schnei

37、der Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pagePower supply via DC-Bus: Basic power calculationTheoretical power calculation (example based on 6A single phase drive):PDCbus= UDCbus * IDCbusS = UNom_in * INom_in Pout.= * Uout * Iout *cos(phi)

38、3PinputPoutput41Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pagePower supply via DC-Bus: Basic power calculationPoutMax = 230V * * 6A *cos(phi) 3PoutMax= 2,1 kW (referring to max. cont. current) Theoretical power calculation (example bas

39、ed on 6A single phase drive):Data sheet Lexium32 e.g. LXM32xD18M2:Nominal power (without mains reactors) Pnom = 1,0 kW Limitation due to the engineering of rectifier package (input circle“) in general usage a higher nominal power isnt practicable. The IGBTs are able to manage higher power. Please re

40、fer to the speed-torque curves.S = 230V * 8,4A (apparent power) S = 1,93 kVA (referring to 1kW nominal power)Pout = Uout * * Iout *cos(phi) 342Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pagePower supply via DC-Bus: Basic power calculati

41、onData sheet Lexium32 e.g. LXM32xD18M2:Nominal power (with mains reactors) Pnom = 1,6 kW Due to inductance influence of mains reactors the mains current RMS is decreased there are less peaks to damage the rectifier unit. With this smoothed current a higher (average) power is possible.43Schneider Ele

42、ctric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pagePower supply via DC-Bus:44Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pagePower supply via DC-Bus:45Schneider Electric- Motion & Drives

43、 training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pagePower supply via DC-Bus: 60*2n* M P = PW = Nm/s 60s*minmin*3000*2* 2,5Nm P = = 785,4 Nm/s = 0,78 kW IDCIload UPIDC = = V 325,274 ,785 W= 2,4 A Torque constant kt = 0,69 Nm/AktMIMot = = Nm 0,69*5 , 2ANm= 3,6 A Iloadmax 3,6 A (IDC

44、maxcont = 6A)IMot46Schneider Electric- Motion & Drives training - Common DC-Bus0,78 kW 0,78 kW 0,44 kW Common DC-BusLexium32 Lexium32Back to main pagePower supply via DC-Bus: 260*MPn = *2*5 , 2min*sec60*440NmW = = 1680 rpm UPIDC = = V 325,27440W= 1,35 A Conclusion for this example: If the averag

45、e power of each unit 1&2 is 0,78 kW the unit 3 can be operated via DC-Bus in case of its average power is equal or less than 0,44 kW (Safety instructionsWiring DC-BusSimple DiagramWhy “DC-Bus sharing” ?Basic considerationsCommon DC-Bus Lexium32ExersicesSummary “Golden Rules”Common DC-Bus Lexium3

46、2 & Altivar32ExersicesSummary “Golden Rules”Common DC-Bus Lexium32 & 3rd party devicesSummary “Golden Rules”56Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pageExercise 1:Design different basic structures for common DC-Bus, includi

47、ng 6 Lexium32MD18M2 (single phase devices): Using common main fuses Using separate main fuses Power supply via main power / DC-Bus ? What about DC-Bus fuses when are they mandatory ?Link to solution57Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back t

48、o main pageExercise 1 (template 1):DC +DC -LXM32 DC +DC -LXM32 LXM32 L1L2L3LXM32 LXM32 LXM32 58Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pageExercise 1 (template 2):LXM32 LXM32 LXM32 L1L2L3LXM32 LXM32 LXM32 DC +DC +DC -59Schneider Elec

49、tric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pageExercise 1 (template 3):LXM32 LXM32 LXM32 L1L2L3LXM32 LXM32 LXM32 DC +DC +DC -60Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pageExercise 2:D

50、esign different basic structures for common DC-Bus, including 2 Lexium32MU60N4,1 Lexium32MD12N4, 2 Lexium32MD18N4 and 1 Lexium32MD30N4(three phase devices): Using common main fuses Using separate main fuses Power supply via main power / DC-Bus ? What about DC-Bus fuses when are they mandatory ? Lexi

51、um32MU60N4 whats the max. amount of identical devices connected to common DC-Bus without usage of DC-Bus fuses ?Link to solution61Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main page62Schneider Electric- Motion & Drives training - Common

52、 DC-BusCommon DC-BusLexium32 Lexium32Back to main page63Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pageExercise 2 (template 1):LXM32 LXM32 LXM32 L1L2L3LXM32 LXM32 LXM32 DC +DC +DC -64Schneider Electric- Motion & Drives training - Co

53、mmon DC-BusCommon DC-BusLexium32 Lexium32Back to main pageExercise 2 (template 2):LXM32 LXM32 LXM32 L1L2L3LXM32 LXM32 LXM32 DC +DC +DC -65Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pageExercise 2 (template 3):LXM32 LXM32 LXM32 L1L2L3LXM

54、32 LXM32 LXM32 DC +DC +DC -66Schneider Electric- Motion & Drives training - Common DC-Bus Common DC-BusSelect & Connect GuideSafety instructionsWiring DC-BusSimple DiagramWhy “DC-Bus sharing” ?Basic considerationsCommon DC-Bus Lexium32ExersicesSummary “Golden Rules”Common DC-Bus Lexium32 &am

55、p; Altivar32ExersicesSummary “Golden Rules”Common DC-Bus Lexium32 & 3rd party devicesSummary “Golden Rules”67Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pageSummary “Golden Rules” (LXM32 LXM32): Connect only devices with identical no

56、minal voltages Connect only devices with identical number of phases Single phase / single phase - dont mix mains phases Three phase / three phase Restriction: Attention in case of using separate mains fuses Make sure to power on all devices at the same time No restriction in case of power up all dev

57、ices at the same time (e.g. common main protection fuse) Max. main fuse: Single phase - 25 A / 3 phase: 32 A No DC-Bus fuses mandatory if: Single phase: summary of current all devices 25 A (common main fuse) Three phase: summary of current all devices 32 A (common main fuse) If DC-Bus fuses mandator

58、y, max value: Single phase: 25 A Three phase: 32 Achoose fuse according to device output68Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Lexium32Back to main pageSummary “Golden Rules” (LXM32 LXM32): If power supply via DC-Bus calculate nominal DC-Bus power ref

59、erring to all connected devices deactivate power mains monitoring Max. DC-Bus cable length between 2 devices Safety instructionsWiring DC-BusSimple DiagramWhy “DC-Bus sharing” ?Basic considerationsCommon DC-Bus Lexium32ExersicesSummary “Golden Rules”Common DC-Bus Lexium32 & Altivar32ExersicesSum

60、mary “Golden Rules”Common DC-Bus Lexium32 & 3rd party devicesSummary “Golden Rules”70Schneider Electric- Motion & Drives training - Common DC-BusCommon DC-BusLexium32 Altivar32Back to main pageDC-Bus sharing: Lexium32 Altivar32Basically similar concept as Lexium32, but71Schneider Electric- M

61、otion & Drives training - Common DC-BusCommon DC-BusLexium32 Altivar32Back to main pageDC-Bus sharing: Lexium32 Altivar32Please note:DC-bus sharing with ATV32 is no longer supported ! Also DC-bus sharing ATV32 - ATV32 is not generally supported - this depends on several internal ATV32 restrictions! Please contact L3 Exptert support Drives in Pacy for