Motortronics Training - 2012

7/24/2019 Motortronics Training - 2012

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Korakot PHOTJANASUNTORN 1/95


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Motortronics MVC Plus Product Training

Startup, Operation & Service Session

INTRODUCTION & OB!CTIV!S O" S!SSION#

MVC P$US D!SCRIPTIONB

MVC P$US "UNCTIONS % PROR#MMINC

COMMISSIONIND

TROUB$!S'OOTIN & M#INT!N#NC!!

PROR#MMIN !(!RCIS!"

CONC$USION


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Objectives List A



COMMISSIONIND


PROR#MMIN !(!RCIS!"

CONC$USION





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Korakot PHOTJANASUNTORN !/95

INTRODUCTION

)*o #+ I, & )*o #re ou-

)*at Do I Do -

)*at Services Do ou T.picall. Provide "or our

Co+pan. /Sales, "ield Service, Maintenance0-

'ave ou #lread. )or1ed )it* # Motortronics MVC

Plus So2t Starter-

)*at Do ou !3pect To ain "ro+ T*is Session-


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OB!CTIV!S "OR T'IS COURS! )OR4

#2ter Co+pletion O2 T*is Training Session,

#ttendees S*ould Be #5le To6

Descri5e T*e "unctions #nd T.pical "ield #pplications

O2 #n MVC Plus Mediu+ Voltage So2t Starter

Identi2. 4e. Co+ponents O2 T*e So2t StarterDe2ine Input Connections & De2ault Settings

Success2ull. Co++ission #n MVC Plus So2t Starter

Trou5les*oot #n MVC Plus So2t Starter

"ind Needed In2or+ation In T*e Support Docu+entation


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Objectives List

#

INTRODUCTION & OB!CTIV!S O" T'IS S!SSION#



COMMISSIONIND


PROR#MMIN !(!RCIS!"

CONC$USION




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Korakot PHOTJANASUNTORN $/95

#55reviations Used In T*is Presentation

CPU Central Processing Unit

DCU Digital Control Unit"$# "ull $oad #+peres

"$C "ull $oad Current

TO ate Turn O22

'MI 'u+an Mac*ine Inter2ace

'P 'orse Po7er IBT Insulated ate Bipolar

Transistor

$R# $oc1ed Ra+p #+peres

MOV Metal O3ide Varistor

MVSS Mediu+ Voltage So2t

Starter

MVSS Mediu+ Voltage So2t

StarterO$ Over $oad

RTD Resistance%Te+perature

Device

RV#T Reduced Voltage

#utotrans2or+er

SCR Silicon ControlledRecti2ier /T*.ristor0

S" Service "actor

RVSS Reduced Voltage So2t

Starter

TCB Ter+inal & Control Board


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So2t Starter % Basic

"eatures Isolation S7itc* /Disconnector0Isolation S7itc* /Disconnector0Provi&es 'so(atio) O* So*t Starter

+ro, Po-er S.(0

Vacuu+ Isolation ContactorVacuu+ Isolation Contactor

Provi&es Start Se.e)ce To

SR Stack Asse,b(0

SCR Stac1 )it* ISCR Stac1 )it* I88t Overloadt Overload

Provi&es o(ta4e Ra, A)&

A&va)ce& Protectio) +eat.res

Vacuu+ B.pass ContactorVacuu+ B.pass Contactor

#0asses SRS 6e) 7otor

Reac6es +.(( See&

Isolated $o7 Voltage ControlIsolated $o7 Voltage Control

CPT & PTCPT & PT

Trans2or+ersTrans2or+ers

S.(0 o)tro( Po-er

A)& SR +iri)4

8etectio)

Main "usesMain "uses

7e&i., o(ta4e

RSt0(e 7otor

Protectio) +.ses


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T*e MVC P$US % De2ined

T*e MVC Plus Incorporates # Co+plete Reduced Voltage So2t Starter S.ste+

)it*in a N!M# 98R Drip%Proo2 !nclosure:

Reduced Voltage Solid%State Devices /SCRs0 Var. T*e #+ount O2 T*e #C

Sine )ave Sent To T*e Motor:

T*e MVC Plus #ccelerates #nd Decelerates # Motor B. $i+iting T*e Current

T*roug* Voltage P*ase #ngle Control:

Once T*e Motor Is #t "ull Voltage, T*e So2t Starting S.ste+ Is B.passed )it*

# Contactor:

Mediu+ Voltage So2t Starters #re NOT Varia5le Speed Drives #nd Do Not

'ave T*e "unctionalit. O2 # Drive: T*e. #re NOT C*eap Drives;

Main Contactor

$oadProtection So2t Starter Motor

B.pass ContactorPo7erNet7or1


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Protect T*e Motor #nd $oad

Reduce Mec*anical Stress

$i+it Starting Current

Reduce Stress On T*e !lectrical rid

Reduce !lectrical S.ste+ Distur5ance

Provide So2t Stopping

Meter & Record

Co++unicate

oals Be.ond Si+ple On & O22 Starting


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MVC P$US Metering "eatures

9< Current Based Metering "unctions

= Status Screens Recorder 2or =< !vents 7it* Ti+e > Date Sta+p

8? RTD Option Screens

Voltage Monitoring "unctions: Including $ine Voltage, "re@uenc., P", 1), 1) De+and,

1V#R, 1V#R De+and, 1)', 1V#, 1V# De+and:

Statistical Data Capture )it* De+and Reset


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'u+an > Mac*ine Inter2ace

"ull Digital Control

: $CD Operator

Inter2ace

: Non%Volatile Me+or.

Digital Se@uencer

: !nsures Proper

Contactor Se@uence "i5er%Optic Isolation

/Operator Protection0

Metering "unctions

RS%A88 Co+unication

Buss Bet7een COMBoard #nd CPU Board

MVC P$US M di V lt S 2t


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Pu+p

Blo7erCo+pressor

C*iller

"ans

C*ipper

Ball Mill

Rod MillConve.or

Po7er Conversion

'V#C

S*redder

MVC P$US Mediu+ Voltage So2t

Starter #pplications

Ot*er #pplications


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Korakot PHOTJANASUNTORN 1!/95

Diodes *ave no gate input to control t*e+: T*e. si+pl.allo7 current to 2lo7 in one direction and 5loc1 current

2lo7ing 2ro+ t*e opposite direction: T*e net output 7it* an

#C input is a sine 7ave:

Several t.pes o2 electrical devices can 5e used to +anipulate po7er

T*ese devices are 5ased on se+i%conductor principles

)*en used in industr., t*e. are nor+all. re2erred to as Po7er

!lectronics

Input

Outputate

Diode Output

SCR Output

TO Output

Description O2 Solid State Devices

SCRs /Silicon Controlled Recti2ier0 *ave a gate input used to

turn t*e+ on 5ut t*en act li1e a diode: T*e. cannot turn o22

until t*e #C current reverses direction in t*e ne3t

alternation o2 t*e sine 7ave: $i1e a diode, t*e. onl. 7or1 in

one direction: Motor so2t starters use SCRs al+ost

e3clusivel.:

TO /ate Turn O220 SCRs, IBTs /Insulated ate Bipolar

Transistors0 and si+ilar devices can 5e turned on and o22 to

create output 7ave2or+s independent o2 t*e Eero crossing

point o2 t*e *al2 alternation o2 t*e sine 7ave: T*ese devices

7or1 si+ilar to t*e control valves o2 a 2luid pu+ping s.ste+/On>O220: $i1e diodes and SCRs, t*e. also onl. 7or1 in one

direction:


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To create an electrical device t*at can 2unction on

5ot* *alves o2 t*e sine 7ave, t7o devices are

needed, one 2or eac* direction:

!ac* gate drive needs to 5e electricall. isolatedsince t*e. are at co+pletel. di22erent potentials in

relation to t*e cat*odes o2 t*e SCRs:

i).t

O.t.t

4ate

4ate

c

R

O.t.t

').t

SR S-itc6i)4

8a,e)e& #0 8/8T

;R< Net-ork

Solid State Devices F SCR "unction

i).t O.t.t

ave*or, 8irectio)

)e can turn an SCR on at so+e point 5e2ore t*e

current Eero crossing point o2 t*e sine 7ave: )*en

t*e current o2 t*e alternation o2 t*e sine 7ave

crosses t*e Eero point, t*e SCR 7ill turn o22: In order2or t*e SCR to conduct 2or t*e ne3t alternation, t*e

SCR +ust *ave a gate signal applied again 5e2ore

t*e ne3t Eero crossing point:

T*e SCR output is t.picall. coupled to a

DV>DT /RC0 net7or1 to *elp reduce voltage

s7itc*ing transients: DV>DT net7or1s arei+portant 5ecause t*e. *elp eli+inate 2alse

triggering o2 SCRs:


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Korakot PHOTJANASUNTORN 1"/95

SCR Control #sse+5l.

$oo1ing at a 7*ole s.ste+ as a unit, eac* p*ase o2 t*e +ediu+ voltage po7er

suppl. connects to its o7n SCR GStac1 #sse+5l.H: T*e Digital Control Unit /DCU0

controls t*e gate drive outputs in order to turn t*e SCRs on 5ased on detecting t*e

point 7*ere t*e current sine 7ave crosses t*e Eero *oriEon:

T*is is a ver. 5asic 5loc1 diagra+ an SCR control s.ste+, 5ut is a good

representation o2 its 2unda+ental operation:

P6ase =L3>

').t

P6ase =T3>

O.t.t

?ate 8rive

8/8T

.rre)t / Te, /

o(ta4e +ee&back

o,.teri@e&

o)tro((er

P6ase # =L2>

').t

P6ase # =T2>

O.t.t

P6ase A =L1>

').t

P6ase A =T1>

O.t.t

8/8T8/8T


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Korakot PHOTJANASUNTORN 1$/95

Rugged ate "iring Circuit

#uto%S.nc*roniEing To $ine

Independent P*ase Trac1ing

Best Sensing Circuit "or enerator Po7er

Measure

"ire

Measure

"ire

Measure

"ire

Measure

"ire

Measure

"ire

Measure

"ire


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Korakot PHOTJANASUNTORN 1%/95

Rugged ate "iring Circuit

Co+petition Uses # C*eaper S.ste+

Measure Once /Bet ou Can uess T*e Rest;0

Suscepti5le To "re@uenc. Dri2t, Noise

P*ase $oc1ed $oop "iring6= Pulses "ro+ One Signal

Measure Once

"ire "ire "ire

' 1 P 1 St l SCR


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A)o&e

at6o&e

?ate

'oc1e. Puc1 St.le SCR

In2or+ational Purposes ON$

SCRs )ill Not Be !3a+ined #t T*is $evel In T*e "ield

T i l MVC P$US SCR St 1 # 5l


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T.pical MVC P$US SCR Stac1 #sse+5l.

T*is SCR stac1 asse+5l. is t*e lo7est level t*at +a. 5e replaced at

custo+er site:

"ield service representatives 7ill not 5e re@uired to replace SCRs 7it*int*is asse+5l. in t*e 2ield due to SCR +atc*ing re@uire+ents, specialt.

tooling and t*e speci2ic co+pressive 2orces needed to properl. cla+p

t*e SCRs into an asse+5l.:

SCR

S 2t St t M di V lt C t t


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DV>DT Boards

T*e DV>DT Boards are used to reduce voltage transients across t*e stac1 asse+5lies

MOV /Metal O3ide Varistor0 Boards

T*e pri+ar. 2unction o2 t*e MOV Boards are to protect t*e ate%to%Cat*ode inter2ace7it*in eac* individual SCR:

Te+p>CT Boards

Provides SCR te+perature and %p*ase current data to t*e DCU

ate Drive Boards

Sends 2iring control signals to t*e SCRs

So2t Starter Mediu+ Voltage Co+part+ent

DV>DT Boards

MOV Boards

Te+p>CT Boardate Drive Boards

MVC P$US !lectrical Isolation Diagra+


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SensingSystems

= MV

MTRMTR

Optical

Isolation

= Fiber Optic= 28V

= 120V

GateDrive

MVC P$US !lectrical Isolation Diagra+

LV

ontrols

Magnetic

Isolation

"i5er Optics Description


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"i5er Optics % Description

Internal Re2lection

)*en a ra. o2 lig*t /at t*e correct 7avelengt*0 is introduced

into t*e 2i5er%optic ca5le, it 5ounces do7n its lengt*, stri1ing

t*e core%to%cladding sur2ace at an angle t*at 7ill re2lect it 5ac1

into t*e core: I2 t*e angle o2 re2lection is correct, t*e re2lected

lig*t continues to 5e re2lected do7n t*e lengt* o2 t*e 2i5er 7it*+ini+al loss:

Introducing t*e $ig*t Source

In a 2i5er optic ca5le, as lig*t is introduced

into t*e end o2 t*e 2i5er at an angle t*at is

directl. in line 7it* its a3is, t*e lig*t is

guided t*roug* t*e core to t*e opposite end:

Due to its design, t*e 2i5er acts as an optical

7aveguide, 5ouncing t*e ==< nano+eter

/optical red0 lig*t at e@ual distances o22 o2 its

7alls:



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Construction



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Cladding % # Se+i%Re2lective Material


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MVC P$US % "i5er Optics "acts

9


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MVC P$US Controller % #dditional "eatures

3 Leve( No)o(ati(e 7e,or0 S0ste,: Hi46 see& RA7 *or s0ste, oeratio)

: PRO7 *or +actor0 Setti)4s a)& 8e*a.(ts

: PRO7 *or User Setti)4s

: No batter0 back. re.ire& *or .ser setti)4s

Rea( Ti,e (ock

: Use& i) rotectio) a)& ,eteri)4

: 1B 0ear batter0 back.

MVC P$US Controller % Co++unications


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MVC P$US Controller % Co++unications

RS!%5 7o&b.s RTU #.i(t')

RS232 i)&o-s #ase& Pro4ra,,i)4 / 7o)itor Pro4ra,



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MVC P$US S t i t P 9


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MVC P$US Setpoint Page 9

)*ere To Input Motor Na+eplate Data

T*ese Settings Include Data Used B. T*e CPU "or Motor

T*er+al Capacit. Modeling

Motor "$# #nd Service "actor #re overned B. /S" 3 "$#0

Calculation "or Unit Ma3i+u+ Current In Setpoint Page 9

/More In2or+ation $ater0



31/95


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Basic Overload Protection % Start Up /& Run0 N!M# > U$ Pre%Progra++ed O>$ Trip Curves

Class J T*roug* Class

#MPS

#T

SP!!DINITI#$ VO$T#!

Initial Voltage % Setpoint 8::V9

R#MP TIM!

Ra+p Ti+e % Setpoint 8::V8

CURR!NT $IMIT

Current $i+it % Setpoint 8::V


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#dvanced Ra+p "eatures

Ra+p "eatures: Voltage Ra+p 7> Current $i+it

: Current $i+it > Current Step

: Closed $oop Current > Tor@ue Ra+p

: Tac*: "eed5ac1 Speed Ra+p

Custo+ Ra+p Pro2iling

Dual Ra+ps

Pu+p Control > Deceleration



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Dual Ra+p % So2t Start

Start Ra+p 9 Selected

Ramp 1 - Voltage Ramp w/Current Limit

Ram

pTime

Current LimitSetting

Current Limit

overrides Ramp Time

Current Level Held toLimit Setting

FullSpeed

RampStart



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Dual Ra+p % Near #T$

Start Ra+p 8 Selected

Ramp 2 - Loaded Restart,Near Across-the-Line

Almost Full!oltage Start" #o Ramp

Time

High Current Near Full-Torque Starting



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Uses "or Dual Ra+p Pro2iles

$oaded Restart #2ter a Po7er outage

: Conve.ors, Crus*ers

'ig*er Tor@ue 2or Occasional Starting

Re@uire+ents

: SpecialiEed Mac*iner.

: Design C Motors

: T7o%Speed Motors /To Start #t !it*er Speed0



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S*orted $oad Protection During Start

Toe%in%t*e%)ater Circuit

: "irst 9>A second o2 ra+p ti+e

: C*ec1s rate o2 current rise

: Prevents collateral da+age

MOTOR VOLTSCURRENT Trip

Start

Initial Torque

Setting

1/4 Second


"l i5l D l ti P C t l


39/95


"le3i5le Deceleration % Pu+p Control #llo7s "ull #dKust+ent

Independent o2 #cceleration Ra+p

#uto+atic Stop $evel % Prevents e3cessive*eating in t*e +otor

Voltage

RunStart Ra+p StopBegin Decel

Tor@ue /Coast0

Valve Cloe !ere

Pu+p Control % '.draulic S.ste+ Pro5le+s


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Korakot PHOTJANASUNTORN !/95

PUMP O""

Trapping t*e 1inetic energ. o2 +oving 7ater causes

)#T!R '#MM!R

: C*ec1 valves 1eep *ead pressure 2ro+ pus*ing 2luids

5ac17ards into t*e pu+p

!E"# $RESSURE$UM$ %LO&$UM$ %LO&

PUMP ONPUMP ON

V#$V! C$OS!D



41/95

Korakot PHOTJANASUNTORN !1/95

Trapping t*e 1inetic energ. o2 +oving 7ater causes

)#T!R '#MM!R

: C*ec1 valves 1eep *ead pressure 2ro+ pus*ing 2luids

5ac17ards into t*e pu+p:

!E"# $RESSURE

PUMP ONPUMP ON

V#$V! OP!NS

$UM$ %LO&$UM$ %LO& $UM$ $RESSURE / %LO&$UM$ $RESSURE / %LO&



42/95


PUMPPUMP O""O""

V#$V! C$OS!S

$UM$ %LO&'$UM$ %LO&' !E"# $RESSURE

Pu+p Control % '.draulic S.ste+ Pro5le+s Trapping t*e 1inetic energ. o2 +oving 7ater causes )#T!R


43/95


T*e energ. o2 t*e 5ac1%2lo7ing 7ater is trapped, creating a S'OC4 )#V!traveling at t*e speed o2 sound

$i@uids donHt co+press, so energ. is 2orced onto piping, 2ittings and seals

PUMP O""PUMP O""

V#$V! C$OS!S

Trapping t*e 1inetic energ. o2 +oving 7ater causes )#T!R'#MM!R

: )*en t*e pu+p suddenl. stops, 2lo7 reverses until c*ec1 valve closes:

C t ll d D l ti d ) t '



44/95

Korakot PHOTJANASUNTORN !!/95

Controlled Deceleration can reduce )ater 'a++er

Reduced pu+p pressure closes valves +ore slo7l.,

at near%neutral pressure

: 4inetic energ. is slo7l. dissipated

: S*oc1 7ave is not created

V#$V! OP!N

PUMP ONPUMP ON

V#$V! C$OSIN

SO"T STOPSO"T STOPPUMP O""PUMP O""

V#$V! C$OS!D

MVC P$US Setpoint Page


45/95


p g

P*ase and round Detection Settings

#ll Trip and #lar+ Settings can 5e

ena5led > disa5led and Values 2or Trip >

#lar+ are progra++ed *ere L

L )it* t*e e3ception o2 #cceleration Ti+eTrip Setting located in Setpoint Page

and RTD > T*er+al Capacit. #lar+

Settings in Setpoint Page 98



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Korakot PHOTJANASUNTORN !"/95

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!lectrical Protection "eatures

Over Voltage

Under Voltage

"re@uenc. )indo7

P*ase Current $oss

P*ase Current I+5alance

S*orted $oad Protection

ero Se@uence round "ault Option



47/95

Korakot PHOTJANASUNTORN !$/95

p g

$oad Protection

Over Current: a+ rela., electronic s*ear pin

Under Current

: $oad loss, 5ro1en 5elt, loss o2 pri+e

P*ase Se@uence: #BC, #CB, or Disa5led

#nti%Oscillation Control

: Prevents surging in pu+p s.ste+s

MVC P$US Setpoint Page A


48/95

Korakot PHOTJANASUNTORN !%/95

Output Rela. #ssign+ents:

Up to Rela.s can 5e assigned per Trip > #lar+ 2unction:

Dedicated Rela.s

: #u3 9 Trip

: #u3 8 #lar+

: #u3 Run Indication F )*en current is a5ove Q o2 progra++ed "$#: #u3 A B.pass Contactor

MVC P$US Setpoint Page J


49/95


Output Rela. Con2iguration:

Output Rela.s can 5e assigned 2or 2ailsa2e and 7*et*er $atc*ed

or Not:

#u3 9 /Trip0 +ust 5e $atc*ed:

"irst A Rela.s are pre%assigned 2ro+ t*e 2actor.:

Rela.s J F can 5e assigned to Trip > #lar+ 2unctions and 7ired

as needed:

MVC P$US Setpoint Page =


50/95


User Input > Output Con2iguration:

A%8< +# Tac*o+eter Input:

A%8< +# #nalog Outputs 9 & 8:

A Progra++a5le !3ternal Input Trip C*annels

MVC P$US Setpoint Page =

Progra++a5le Input > Output "eatures


51/95


Progra++a5le Input > Output "eatures

98


52/95


Custo+ #cceleration Curve:

Separate Curves % #, B & C:

Progra++a5le Steps F Voltage and

Duration 2or eac* step:

Ma3i+u+ Current T*res*old Set point:


Custo+ Ra+p Pro2iles


53/95


Custo+ Ra+p Pro2iles

Progra++a5le Custo+ Curves

Data Points in !ac* !nter Voltage, Current, Ti+e

: Matc* ra+p pro2ile to practicall. an. application


Overload Protection C*oices During Start%up


54/95


Overload Protection C*oices During Start up

Basic Overload Protection 2or Start /& Run0

: Progra++a5le overload Class J F 'our loc1out0

StartStart

Time et)eenStarts

Start

Time et)eenStarts

Start

Time et)eenStarts

Start

Starts ourLocout

i5 set at 3

Start

MVC P$US Setpoint Page ?

U T 98 "l i5l RTD I t C 2i 5l 2 RTD t


63/95

Korakot PHOTJANASUNTORN "3/95

Up To 98 "le3i5le RTD Inputs F Con2igura5le 2or an. RTD t.pe:

RTD Biasing o2 T*er+al Register:

RTD Voting:

Ma3 Te+p Recording

"ield Installa5le % See Instructions 2or RTD cali5ration

RTD Option Card

Front Bearing (Cu)

Stator A1 (Pt)

Stator B1 (Pt)Stator C1 (Pt)

Back Bearing (Cu)

Ambient (Ni)

Stator B2 (Pt)

Stator C2 (Pt)

Bearing Box (Cu)

Stator A1 (Pt)

Oil ReservoirSare

CPU

MVC P$US Setpoint Page 9 Pass7ords


64/95

Korakot PHOTJANASUNTORN "!/95

Securit. > Pass7ords

"actor. $evel 8 Pass7ord 9


65/95


Co++unications Settings

Mod5us Baud Rate and #ddressing:

RS88 Baud Rate:

RSAJ /Mod5us0 C*annel is pipelined over RSA88 /Displa.0

C*annel: Polling too +uc* or too 2ast can cause )ait To

Co++unicate to 5e displa.edC


S.ste+ Set points


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Korakot PHOTJANASUNTORN ""/95

S.ste+ Set points

Setup De2ault Screen Displa. during Run:

T*er+al Register Setup:

RTD "ailure #lar+ Settings:

T*er+al Register #lar+ Settings:

Clear T*er+al Register:


Custo+ Motor Overload Protection


67/95

Korakot PHOTJANASUNTORN "$/95

Motor T*er+al Modeling

: )it* retentive +e+or.

D.na+ic Reset Capacit.

: )it* True Ti+e cooling rates

Dual Protection Modes

: Separate settings 2or Start & Run

: !3a+ple6 Class < 2or starting and Class 9< 2or running

: reat 2or long *aul conve.or applications

MVC P$US Setpoint Page 98Motor T*er+al Modeling


68/95

Korakot PHOTJANASUNTORN "%/95

T*er+al Register

: In processor +e+or.

: Mat*e+atical representation o2 t*e +otor

Created 2ro+ Na+eplate Data

: #dKusts to starting > running conditions

Dual Use: )arning and>or tripping

MVC P$US Setpoint Page 98Retentive T*er+al Me+or.


69/95


CPU

: Trac1s t*e +otorHs t*er+al state

Records t*er+al state 7*en po7er 2ails

#uto+aticall. stored in non%volatile +e+or.

: !!PROM, no 5atteries needed

Returns to nor+al on po7er%up

Re%cali5rates 2or elapsed o22%ti+e

Da,(eE

MVC P$US Setpoint Page 98Motor T*er+al Modeling


70/95

Korakot PHOTJANASUNTORN $/95

T7ermalRegister in

#on !olatile$emor8

0%0%

-ver Load-ver Load

2+%2+%

+0%+0%

9+%9+%

100%100%ColdCold

Da,(eE

T7ermal

Capacit8used inStarting

Cooling RateCooling Rate)7ile)7ile

RunningRunning

RemainingT7ermalCapacit8

MVC P$US Setpoint Page 98Retentive T*er+al Me+or. )it* Real Ti+e Cloc1


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Korakot PHOTJANASUNTORN $1/95

T7ermalRegister in

#on !olatile$emor8

0%0%

-ver Load-ver Load

2+%2+%

+0%+0%

9+%9+%

100%100%ColdCold

Da,(eE

T7ermal

Capacit8used inStarting

ower !ail"ower !ail"

Cooling RateCooling Rate

)7ile -.)7ile -.

Recalculated

RemainingT7ermalCapacit8

ower Restoredower Restored

MVC P$US Setpoint Page 98Bene2its


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Ma1es "ull Use o2 Motor Data

: Ta1es advantage o2 @uic1er cooling

!li+inates uess )or1 or Co+pro+ises

: 'elps prevent pre+ature restarting and 2ailed starts

MVC P$US Setpoint Page 98D.na+ic Reset Capacit.


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CPU $earns t*e Motor and $oad

Records T*er+al Capacit. Needed

: #verages previous success2ul starts

In*i5its Reset

: Until enoug* t*er+al capacit. is recovered

MVC P$US Setpoint Page 98D.na+ic Reset Capacit.


74/95

Korakot PHOTJANASUNTORN $!/95

T7ermalRegister in

#on !olatile$emor8

0%0%

-ver Load-ver Load

2+%2+%

+0%+0%

9+%9+%

100%100%ColdCold

T7ermalCapacit8

used in#uccess$ul

Start

Example:Example:

Running

-verload

10%10%RemainingRemaining

Cooling

Rate:7ile-.

From-ver Load

Trip

#o Reset until#o Reset until

;0% remaining;0% remaining


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$oto$oto

rr

TempTemp

Cooling RateCooling RateLowLow

%igh%igh

g

: Based on T*er+al Model values

#ccounts 2or e3tra convection: 'ot +otors cool +ore @uic1l. at 2irst

: Cooling rate slo7s as it cools

True TimeTrue Time!

!aria


76/95

Korakot PHOTJANASUNTORN $"/95

#voids !3*austing Starts>'our Rating

: Prevents *aving to 7ait longer 2or reset

: Ta1es t*e guess7or1 a7a. 2ro+ t*e operator

Saves Operating Costs

: 'elps prevent +otor da+age

: Decreases do7nti+e


Unit "actor. Settings


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Korakot PHOTJANASUNTORN $$/95

. g

Pass7ord 2or Setpoint Page 9 AJ=8

/Not Docu+ented0:

Unit Ma3i+u+ Current F Use S" ( "$# calculation to ena5le

correct settings in Setpoint Page 9:

P*ase CT Pri+ar. Ratio F Value o2 CTs located inside o2 red

5o3 in MVC Plus enclosure: Set 2ro+ t*e 2actor.:

round CT Pri+ar. Ratio Setting:

PT > VT Pri+ar. Ratio Setting:

MVC P$US Setpoint Page 9 % Continued

S.nc B.pass Close F Sets triggering o2 5.pass contactor % "iring


78/95

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. .p gg g .p g

#ngle and>or Current Drop O22:

B.pass Drop Out Dela. F Progra++a5le dela. 2or t*e opening o25.pass contactor a2ter stopping:

B.pass Discrepanc. F Not used, "uture Option:

S*unt Trip F Not Used, "uture Option:

Starter Settings F O22set adKust+ent 2actors to correct current &

voltage li+it output during starting: Not nor+all. accessed:

Tac*o+eter Input O22set F #dKust+ent 2actors 2or co+pensation:

MVC P$US Setpoint Page 9 % Continued

# l O t t 9 &8 O22 t P 5l t t t l


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#nalog Outputs 9 &8 O22set F Progra++a5le output control:

RTD Cali5ration F Re2er to procedure

S*ort Circuit $i+it #dKust+ent and Dela.:

Reset all rela.s F No longer needed:

"actor. Reset F Re2er to "actor. Reset Procedure:


Motortronics MVC Plus Product TrainingStartup, Operation & Service Session


80/95

Korakot PHOTJANASUNTORN %/95




COMMISSIONIND


PROR#MMIN !(!RCIS!"

CONC$USION

MVC P$US % Service Manual Docu+ents

Ta5 9 F T*eor. o2 Operation F 'o7 T*e MVC Plus )or1s


81/95

Korakot PHOTJANASUNTORN %1/95

Ta5 8 F MVC Plus Manual F So2t Starter Docu+ent

Ta5 F!lectrical Dra7ings F So2t Starter 4it Dra7ings

Ta5 A F #pplication In2or+ation F Co++on Issues Seen In T*e "ield

Ta5 J F Co++unications F MODBUS RTU Using RS%AJ

Ta5 = F Service Procedures F #lign+ents #nd #dKust+ents

Ta5 F RTD Data S*eets F Te+p > Resistance Maps

MVC P$US Co++issioning

"inal Inspection Be2ore Start Up


82/95


Collect Data 2or Set Point Progra++ing: Collect Na+eplate Data 2ro+6 Motor, Trans2or+er, $oad, ear5o3

Mediu+ voltage ca5le 'i%Pot tests per2or+ed and success2ul

C*ec1 all control 7iring

Veri2. all connections, 2uses, current trans2or+er circuit

Veri2. t*at all protective & ti+ing rela.s *ave 5een set

)it* disconnect s7itc* closed, veri2. MV door cannot 5e opened Veri2. $V co+part+ent plugs are connected

Veri2. t*at all insulating 5arriers are clean & dr.

Inspect t*e e@uip+ent 2or loose parts, litter, tools

Revie7 an. 1e. interloc1ing sc*e+es

Veri2. t*at all 5arriers and doors are secured

Due to a lac1 o2 understanding, t*e MVC Plus is t*e 2irst t*ing to 5e

5la+ed 7*en so+et*ing doesnHt see+ to 7or1 rig*t during

i i i

T*e Misunderstood MVC P$US


83/95


MOTOR

$O#D

-

TR#NS"ORM!R

co++issioning

Man. ti+es, t*e end%user *as to 5e educated in order to 5eco+eco+2orta5le 7it* t*e MVC P$US: Pri+aril., t*e end%user needs to realiEe

t*at t*e MVC P$US does not +a1e po7er: It 7or1s si+ilar to a 2luid

control valve, slo7l. 5uilding up voltage and current to t*e +otor

'2 t*e s.ste+ po7er is 7ea1 and t*e voltage drops so lo7 as to reduce t*e

Motor Tor@ue 5elo7 t*e $oad Tor@ue, t*e s.ste+ 7ill not co+e up to

rated speed

Motor Tor@ue produced is proportional to 5ot* t*e

MVC P$US % Di+ensional Bo3 T*eor.


84/95

Korakot PHOTJANASUNTORN %!/95

Motor Tor@ue produced is proportional to 5ot* t*e

"ield and Rotor Voltages: T*is +eans t*at Motor

Tor@ue is proportional to t*e s@uare o2 t*e Motor

Ter+inal Voltage

T*e s.ste+ 7ill never +a1e it to rated speed i2 not

enoug* tor@ue is availa5le 2ro+ t*e +otor to

overco+e t*e $oad Tor@ue

T*e 5o3 5eside can 5e +anipulated, 5ut t*e#+ount o2 Output +ust create su22icient Motor

Tor@ue

TIM!

#MPS

VO$TSMOTOR

TORU!

Motortronics MVC Plus Product TrainingStartup, Operation & Service Session



85/95


O UC O & O C S O S SS O



COMMISSIONIND


PROR#MMIN !(!RCIS!"

CONC$USION

MVC P$US % Trou5les*ooting Outline


86/95

Korakot PHOTJANASUNTORN %"/95

Most trou5les*ooting is done pri+aril. 7it* t*e supplied MVC

Plus Service Manual and t*e So2t Starter dra7ings

'ands%on trou5les*ooting 7it* an actual MVC Plus c*assis

unit 7ill 5e per2or+ed later

Trou5les*ooting & Maintenance % SCR Test Procedure

6e) t6e co)&itio) o* t6e SRs is s.secte&F a resista)ce c6eck ca) be

er*or,e& o) t6e SR 6eat si)k asse,b(ies i) t6e ri46t6a)& cabi)et to co)*ir, i*


87/95

Korakot PHOTJANASUNTORN %$/95

Test To Perform Ohm Meter Reading Test Result

+ro, Positio) A to Positio) # ?reater t6a) 1K O6, Pass

Less t6a) 1K O6, +ai(

+ro, Positio) # to Positio) ?reater t6a) 1K O6, Pass

Less t6a) 1K O6, +ai(

?ate ;?< to at6o&e ;K< *or eac6 SR % to 1 O6,s Pass ;T0ica( % to 2 O6,s

Documents

Motortronics Training - 2012