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Application guide

ACS880-01 drives and ACS880-04 drive modules

Common DC systems

3AUA0000127818 Rev B

EFFECTIVE: 2014-04-17

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Table of contents

Содержание ACS880-04 drive modules

Страница 1: ...ABB industrial drives Application guide ACS880 01 drives and ACS880 04 drive modules Common DC systems...

Страница 2: ...9 3AUA0000099689 ACS880 01 assembly drawing for cable entry boxes of IP21 frames R5 to R9 3AUA0000119627 ACS880 04 drive modules 200 to 560 kW 300 to 700 hp hardware manual 3AUA0000128301 ACS880 04 dr...

Страница 4: ......

Страница 5: ...circuit types 15 Type A 15 Type B 15 Brake chopper types 15 3 Planning basics Contents of this chapter 17 Defining the DC link duty cycle and key variables 18 Defining the DC link duty cycle 18 DC li...

Страница 6: ...etic Compatibility EMC 35 Connecting the Ready and Start enable signals 36 Setting the drive parameters 37 5 Technical data Contents of this chapter 39 Rectifier power capacity Prec ave and Prec max 4...

Страница 7: ...nd ACS880 04 drive modules Safety instructions Obey the safety instructions in the drive s hardware manual Target audience This manual is written for people who plan common DC systems We expect the re...

Страница 8: ...les on page 18 3 Select the drives that you will connect to the AC power line See section Selecting the drives which are connected to AC power line on page 21 4 Define the means to handle the surplus...

Страница 9: ...ration mode in which the motor rotates the load and takes power from the drive DC link normal operation Generating mode Motor operation mode in which the motor decelerates brakes the load and generate...

Страница 10: ...10 Introduction to the manual...

Страница 11: ...ware description 11 2 Operation principle and hardware description Contents of this chapter This chapter contains a description of a common DC system It also describes the drive features which are rel...

Страница 12: ...or generates energy back to the inverter which then conveys the energy further to the DC link In the generating mode the DC capacitors are charged by the inverters and the DC link voltage starts to ri...

Страница 13: ...the drives to the AC power line and supply the other drives only through the common DC link connect a shared brake chopper and resistor to the common DC link to absorb the occasional surplus energy p...

Страница 14: ...and arrange their control For power up and charging you must disconnect the DC links of the drives which have different type of charging circuits You can connect the DC links together only after charg...

Страница 15: ...uit and brake chopper designs Charging circuit types Type A Charging resistor is in the DC link frame sizes R1 to R4 Type B Charging resistor is in parallel with the input bridge frame sizes R5 and la...

Страница 16: ...16 Operation principle and hardware description...

Страница 17: ...Planning basics 17 3 Planning basics Contents of this chapter This chapter contains the basics of planning a common DC system See section Quick planning guide on page 8 for a summary of planning steps...

Страница 18: ...common DC link duty cycle diagram for the common DC system See section DC link duty cycle diagram on page 19 3 On basis of the common DC link duty cycle diagram define the key variables Pmot ave Pmot...

Страница 19: ...g basics 19 DC link duty cycle diagram DC link key variables Pmot t Drive a Drive b Drive c Total M a b c M M Pdc Pdc Pdc Pgen Pdc Pmot t Pgen Pmot t Pgen Pmot t Pgen Pmot Pgen M M M a b c Pbr Pmot Pg...

Страница 20: ...nerating mode braking the load See the duty cycle diagram of the common DC link Prec Rectifier power Power that the drive input bridges rectifiers feed to the common DC link See section Selecting the...

Страница 21: ...ations to calculate Prec ave and Prec max Prec ave Prec ave1 k Prec ave2 Prec ave3 Prec max Prec max1 0 9 k Prec max2 Prec max3 k Power correction factor for a common DC system See section Power corre...

Страница 22: ...on DC system After you select the drives that you will connect to the AC power line you must verify that there is enough charging capacity available Select the appropriate verification method and obey...

Страница 23: ...veral drives to the AC power line calculate Rmin Use this equation Rtot Calculated total charging resistance for the common DC system Rmin Minimum charging resistance allowed for the common DC system...

Страница 24: ...wer line must supply the total charging energy for all of the DC capacitors in the common DC system at the power up The charging capacity must comply with this formula Erconnected Etot Calculate the c...

Страница 25: ...em Calculations The total charging energy of the DC link capacitors is Etot 1 2 2 5600 F 3 8800 F 1 35 500 V 2 10 6 8566 J The charging capacity of the ACS880 01 361A 5 frame size R9 One frame size R9...

Страница 26: ...DC link during time tg1 Pg2 Generating power of the common DC link during time tg2 Pgen t Generating power of the common DC link as a function of time over one duty cycle T Duty cycle time tg1 Duratio...

Страница 27: ...rs and resistors as follows 1 Select the choppers Examine if the chopper load capacity of the drive with the highest power rating is high enough for the surplus power of the common DC link See section...

Страница 28: ...chopper power ratings on page 44 Pbr max1 Maximum braking power of the chopper 1 See section Brake chopper power ratings on page 44 Er Energy pulse that the resistor can withstand and dissipate durin...

Страница 29: ...tg1 See the graph in section Defining the energy absorbing capacity of the common DC link on page 26 Pgen t Generating power of the common DC link as a function of time over one duty cycle Pgen max M...

Страница 30: ...30 Planning basics...

Страница 31: ...ne from the same transformer All drives must have equal supply side impedance The supply side impedance is an important parameter which influences the current distribution Constructing the DC link If...

Страница 32: ...current of the drive instead See the drive hardware manual Make sure that the operation time of the fuse is below the limit given for the default fuses See the drive hardware manual Selecting the DC...

Страница 33: ...stem may prevent the DC ripple becoming large enough to be detected internally Selecting the power cables Obey the instructions in the drive hardware manual Size the conductor cross sectional area of...

Страница 34: ...harging circuit and that drive is the only one that you connect to the AC power line you do not need extra protection The drive detects the chopper fault and its input bridge cuts off the power supply...

Страница 35: ...ns Keep the power cable runs as short as possible Especially important is to keep the DC cabling and the brake resistor cabling short Make 360 degree grounding of the cable shields at the drive cable...

Страница 36: ...or want to use another relay output instead see the drive firmware manual for the parameter settings parameter group 10 Standard DI RO 2 Connect the common Ready signal to digital input DI6 of all dri...

Страница 37: ...drives Set parameter 30 26 Power motoring limit to the maximum motoring power of the drive load cycle Set parameter 30 27 Power generating limit to the maximum generating power of the drive load cycle...

Страница 38: ...38 Planning additional instructions...

Страница 39: ...Technical data 39 5 Technical data Contents of this chapter This chapter contains the technical data that you need in the planning of a common DC system...

Страница 40: ...must never exceed this limit R5a ACS880 01 types 07A3 7 09A8 7 14A2 7 and 018A 7 R5b ACS880 01 types 022A 7 026A 7 035A 7 042A 7 and 049A 7 R10a ACS880 04 types 505A 3 and 460A 5 R10b ACS880 04 types...

Страница 41: ...e 0 7 for combination of frames R5 and R4 0 8 for combination of frames R5 and R2 0 8 for combination of frames R4 and R2 Choose the smallest value 0 7 and use it in the calculations Frames R1 to R5 F...

Страница 42: ...must have a DC contactor between the DC terminals of these drives The DC contactor must isolate the drives until charging is complete Frames R1 to R5 Frames R5 to R9 Frames R10 to R11 R10a ACS880 type...

Страница 43: ...b ACS880 01 types 022A 7 026A 7 035A 7 042A 7 and 049A 7 Frame R ohm Rmin ohm R1 R2 R3 50 16 R4 25 6 R5 20 N A R6 R7 36 N A R8 R9 18 N A R10 3 3 N A R11 10 N A Frame Er J R5 411 R6 1400 R7 1400 R8 560...

Страница 44: ...7A5 2 1 5 65 04A0 3 1 5 78 03A4 5 1 5 78 14A2 7 11 18 10A6 2 2 2 65 05A6 3 2 2 78 04A8 5 2 2 78 018A 7 17 18 16A8 2 4 0 18 07A2 3 3 0 78 05A2 5 3 0 78 022A 7 23 18 24A3 2 5 5 18 09A4 3 4 0 78 07A6 5 4...

Страница 45: ...rvoltage trip limit The drive trips and gives a fault message if the DC link voltage reaches these levels UDC brcl UDC brch Brake chopper limit low and Brake chopper limit high The brake chopper start...

Страница 46: ...2A6 3 25 11A0 5 20 035A 7 63 046A 2 100 017A 3 32 014A 5 32 042A 7 80 061A 2 125 025A 3 50 021A 5 40 049A 7 100 075A 2 160 032A 3 63 027A 5 50 061A 7 125 087A 2 160 038A 3 80 034A 5 63 084A 7 160 115A...

Страница 47: ...rmation on ABB product training navigate to www abb com drives and select Training courses Providing feedback on ABB Drives manuals Your comments on our manuals are welcome Go to www abb com drives an...

Страница 48: ...Contact us www abb com drives www abb com drivespartners 3AUA0000127818 Rev B EN 2014 04 17...

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