basic drive technology [compatibility mode]

7/25/2019 Basic Drive Technology [Compatibility Mode]

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| Confidential/Property of Danfoss Drives A/S | Wednesday, 17 April 2013 | 1

VLT Danfoss Drives ! "#DT Trainin$%asi& Drive Te&'nolo$y

((()danfoss)&o*/drives


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Learnin$ +-e&tives

#n t'is trainin$ *od.le (e (ill learn t'e %asi&s of t'e VLT )

We (ill fo&.s on

The main block diagram and components.

o( does a VLT fre.en&y &onverter (or

o( to &ontrol t'e VLT

"ield.s

Danfoss Soft Starter


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T'e *ain lo& dia$ra*


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| Confidential/Property of Danfoss Drives A/S | Wednesday, 17 April 2013 |

Learnin$ +-e&tives

We (ill fo&.s on


How does a VLT frequency converter work

How to control the VLT

Fieldbus

anfoss !oft !tarter


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%asi& Str.&t.re of 5 P.lse VSD

#t is a an ele&tri& devi&e ('i&' provides infinitely variale speed &ontrol of t'ree p'ase AC *otors

y &onvertin$ t'e fi6ed *ains volta$e and fre.en&y into a variale .antities


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T'e re&tifier

Uncontrolled?

or

semi controlled rectifier?


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#%T 8#solated ate %ipolar Transistor9

So.r&e Wiipedia


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| Confidential/Property of Danfoss Drives A/S | Wednesday, 17 April 2013 | :

"ower part of frequency converter

VDC

U V WL1 L2 L3

MOTOR

3-PHASE SUPPLY



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| Confidential/Property of Danfoss Drives A/S | Wednesday, 17 April 2013 | ;

The rectifier

L1 L2 L3

3-PHASE SUPPLY Voltage

IDC

UDC



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The intermediate curcuit #$%bus&

VDCIDC

UDC

IDC

UDC



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The inverter #si'%step voltage&

U V W

MOTOR

IDC

UDCUv

UU

UW

UU-V



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P.lse A*plit.de


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+ne p'ase s'o(n

Output voltage from the VLT - PWM modulation (VVCPLUS)


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P.lse=Widt'


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T'e PW< pattern, asi& for Danfoss VVC

Pulse width modulation

Sine controller pulse width modulation

Asynchronous pulse width modulation 60AVM


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Learnin$ +-e&tives

We (ill fo&.s on




Fieldbus

anfoss !oft !tarter


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| Confidential/Property of Danfoss Drives A/S | Wednesday, 17 April 2013 | 1:

(otor speed are controlled by)

and


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| Confidential/Property of Danfoss Drives A/S | Wednesday, 17 April 2013 | 1;

Functionality are controlled by)

eys on t'e LCPS(it&'es &onne&ted to t'e di$ital inp.ts

2 Volt si$nal

"ield .s si$nals

o( to &ontrol t'e VLT

VLT can inform about status via

Beadin$ on t'e LCP

Di$ital o.tp.ts

Belays

Analo$.e si$nals, &.rrent or volta$e

"ield %.s si$nals


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Learnin$ +-e&tives

We (ill fo&.s on




Fieldbus

anfoss !oft !tarter


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Typi&al "ield.s Co**.ni&ation

*!T+,T-

*,un forward /00 ,"(-

*5.6.-

*,amping-

*,unning forward 1 234 ,"(-

$ontroller


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"ield %.s &ontrol

A "ield.s is a *edia t'at lins 2 or *ore p'ysi&al .nits, for e6&'an$e of infor*ation)Typi&ally t'is refers to t'e &ontroller &o**.ni&ations proto&ol and p'ysi&al &ale

&onne&tions)

Cales desi$n type is dependent on t'e proto&ol .sed and appli&ation desi$n)

"ield.s &ales &an e fro* a fe( *eters, to ilo*eters in len$t')

Control si$nals &an e a&tivated via t'e "ield.s)

Dependin$ on t'e appli&ation, a&&ess to all or sele&ted drive para*etersis possile)

Detailed error/stat.s *essa$es &an e otained fro* t'e "ield.s)

Typi&al "ield.s &o**.ni&ation is via


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W'y .se a "ield.s

Less Cost at #nstallation)

Data transfer is *ore resistant to ele&tri&al noise)

Bed.&ed n.*er of &ales Less *aintenan&e)

Si*ple e6pansion of syste*)

#n&rease of prod.&tivity)

#n&rease of prod.&t .ality d.e to *ore and etter infor*ation)


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"ield.s Types S.pported y Danfoss Drives

AE@A VAC

A.to*ationDrive

Different "ield.s proto&ols are *ore&o**only .sed in so*e appli&ationtypes &o*pared to ot'ers)

ere (e &an see t'e typi&al proto&ols.sed in t'e pri*ary VLT %.siness Areas)


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>>*edded

++ption

"C G G G G G G G G G G

PB+"#.s DP=V1 + G G G G G G G G G G

Devi&eHet + G G G G G G G G G

Can+pen + G

G G G G G G G G G G


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>nd of

%asi& Drive Te&'nolo$y

Start of

%asi& Soft Starter Te&'nolo$y


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VLT7 !oft !tarter


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Pumps

Fans andBlowers

Cranes

Woodworking

Conveyors

VLT7 !oft !tarter % applications


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!oft !tarter

MotorOverloadA.C. SwitchesContactor

M3 ~

A Soft Starter &ontrolst'e volta$e applied to

t'e *otor y t'e .se ofsolid state A)C) s(it&'es8SCBs9 in series (it't'e s.pply to t'e *otor)


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Fieldbus connection options


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($ 202Co*pa&t Soft Starter

C.rrent li*it soft

start ? *otorprote&tion

($ 20Soft Start ControllerVolta$e ra*p softstart/stop

2 Styles- without motor protection

- with motor protection11 Models

- 7.5 kW~110 kW @ 400VAC2 Voltage Ranges

- 200 ~ 440VAC & 200 ~ 575VACThree frame sizes7,5~30kW , 37~55kW , 75~110kWProtection

- IP20 (7.5 ~ 55 kW)- IP00 (75 ~ 110 kW)

Approvals

- CE- UL508- CSA- CCC*

C-tick

The ,angeVLT $ompact !tarter ($ 200


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8ntegral9y

pass,elays

Very low heat dissipation.No need for additional bypass contactor.

($ 20($ 204

($ 202

VLT $ompact !tarter($ 200 !eries


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MCD203 Compressor starterCustomized MCD201, an example of special design for special customer needs


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+d:ustmentsEight adjustments can be made on theMCD 202 soft starters:

Current Ramp Up (2-15 sec) Current Limit (250-450%)

+ Initial Current (150-250%) Ramp Down (0-20 sec) Motor FLC (50-100%)

Motor Trip Class (10,15,20) Maximum Start Time (0-20 sec) Phase Rotation Protection Auxiliary Relay Function (Trip, Run)

($ 202


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T'e


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basic drive technology [compatibility mode]

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