Mocotech Electronic Soft Starter Type VFS E

MEDI ME DIUM UM VOL VOLT TAGE SOF S OFT T STARTER ST ARTER TYPE VFS UP TO 5 MW UP TO 12 kV UP TO 400 A

Trusted by over 1 million members

Try Scribd FREE for 30 days to access over 125 million titles without ads or interruptions! Start Free Trial Cancel Anytime.







MOcOTech

cUsTOMer AdVAnTAges

PresenTs The

· Reduction of service and maintenance costs for drives

VAriAble Fre-

· Increase of lifetime for drives

qUency sOFT

· Start / stop with low mechanical stress

sTArTer (VFs)

· Reduction of starting current

WiTh M Any

· Minimum voltage drop in the power supply

UniqUe FeATUres And AdVAnTAges.

· Increasing the break away torque of the motors to be started due to frequency reduction · Cost saving compact modular design with many options · Basic design including mains connection, power electronics, pt, ct and control · Withdrawable power module with mains contactor, by pass contactor and power electronics · HH fuses for reduction of short circuit capacity · All components with full options in one cabinet only · Indoor installation · Operation and maintenance of VFS from the front · VFS may be mounted with backside against a wall · Single or lined up installation · Cost reduction for lined up installation with common bus bar · Bus bar extendable · Only 1 square meter oor space for each VFS · Small incoming cable connection panel (ICCP) · MV part metal enclosed · Control part metal clad · Cable connection from the bottom · Removable cable entry plates ease the connection · Service continuity category LSC 2A class PI







MEDIUM MED IUM VOL VOLT TAGE S OFT STARTER ST ARTER TYPE VFS

TyPe APPrOVed inTernAl Arc APPrOVed highesT OPerATOr sAFeTy highesT AVAilAbiliTy







VAriOUs sysTeM Or PrOcess eFFecTs Will be AVOided: • Impact in gear teeth • Impact in couplings • Vibrations • Jerky movement of conveyer belts • Passing critical acceleration speed areas • Surge (water hammer) problems in pipelines • Voltage drop in power supply

APPlicATiOn APPlicA TiOn exAMPles c a l i m y r e e r n i o n h e t e g t e c a c o g l o d u t r r o t i o n e s s i n h n o f f f s h o r o e w r a e e o a t o o r P s t e e c O / P e o c g t e W a g e n P a p e i c a l / g t / S p r o y / n d d i n i n e / s t r r y r r / n e e e e m i t w l p e n m o i l r d u n W a P o P u C h M i C e W o B u M a I n Pump Fan/Blower/Aerator Compressor Chiller Rener Extruder Centrifuge Mill Crusher Hacker Conveyor







OPerATOr sAFeTy · Internal arc withstand tested acc to IEC 62271 part 200 · Type tested and approved design · Operation of all components from front with closed doors · No load switch (NLS) between bus bar and VFS equipment · Isolating plate between open NLS contacts and bus bar provides a clear visible isolating distance between bus bar and service parts in VFS components · Earthing switch · Mechanical interlock between NLS, earthing switch and front door · Common earthing bus bar · Cylindrical door lock · Electrical isolation between LV and MV circuits by use of bre optic cable

FUncTiOns · Soft start · Soft stop · Frequency soft start for increase of break away torque · Active break stop for quick stand still of motor · DOL start · Direct stop · Motor turn function for machines with a long stand by time · Starting curves: torque / time or current / time freely selectable · Different starting ramps for pump control · Dual start adjustment · Integrated full motor protection features · Alternative use of standard protection relais possible · Test with small LV motor Reduced frequency soft start with sinus wave skip function provides ultimate breakaway torque with low starting current







sTArT cUrren T liMiTATiOn

sOFT sTArT

sPeciAl rAMPs

(Adjustable max. torque)

Example centrifugal pump start and stop

(Adjustable max. current)

T n e r r U c

e T A r W O l F

e U q r O T

sPeed

sPeed

sTArTing TiMe

AdjUsTAble sTArT TiMe e U q r O T

sPeed

e T A r W O l F

d e e P s

To avoid voltage drop in the power supply,

sTOP TiMe

sTArTing TiMe

the starting current can be adjusted to a

Special acceleration and run down ramps can be provided for different applications.

pre-set limit. The rst chart shows the

For example centrifugal pump control:

starting current. Black graph for DOL

Controlled start up avoids damages in pipe

start, coloured graphs for different pre set

The high breakdown torque when starting

systems due to torque peaks and sudden

maximum currents. The second graph

a motor DOL (black graph in rst chart) can

pressure increase.

shows the corresponding torque

be avoided.

To avoid water hammer effect during pump

characteristics. Extra breakaway torque is

Therefore a maximum torque during

stop the run down is controlled in order to

available due to frequency modulation in

acceleration is pre-selected (coloured graphs

reach a smooth ow reduction. This avoids

the rst starting phase. Raised current

in rst chart). This reduces stress and impact

excessive noise and damage in the pipe

limitation results into additional decreased

on the rotating equipment:

system (black graphs in the charts for

voltage drop.

motor, coupling, gearbox, driven machine,

DOL start and coloured graphs for controlled

etc. Lifetime of machinery increases,

pump start / stop). A pre-selection of the

damages are avoided.

required run down time is also possible.

A pre-selection of the required starting time









OPTiOns · MV cable connection from top · Incoming cable section right- or backsided · Customised MV panels attached to same bus bar · Different stage of completion for MV components inside VFS panel. (see single line diagram page 10) · Different xed power factor correction solutions · Arc pressure release duct · Remote I/O eld housing · Probus and Modbus interface · Many more options. Please consult us with your demands

sTAndArds · IEC 62271 Part 1

· IEC 62271 Part 102

· IEC 62271 Part 200

· IEC 60470 Part 2000

· IAC AFL 31,5 kA / 1 sec · Ship classication approval (1)

TechnicAl dATA Rated voltage

kV

7,2

12

Rated current bus bar

A

… 1850

… 1850

Rated current feeder

A

…400(2)

…400(2)

Rated short time current

kA

…40

…40

Rated peak withstand current

kA

…100

…100

Rated power frequency withstand voltage voltage

kV

20

28

Rated lightning withstand voltage

kV

60

75

Operating frequency

Hz

45 – 65







keybOArd · High quality and low cost when integrating i ntegrating the VFS into your drive systems. · Digital microprocessor control with non– volatile memory and real time clock READY LOCAL

RUN

DOL

FAULT REMOTE STOP

TEST

MOTOR TURN AUX_A AUX_C SOFT STOP

RUN

AUX_B AUX_D

SET

· Multi level password access for operation and parameter adjustment · Large illuminated interactive multi language display with 6 lines · Metering and indication functions · 10 LED for status st atus information · 4 LED for variable use

MENU /OK

STOP

HORN OFF

RESET

LAMP TEST

· Error memory, statistical data and diagnostic functions · Standard CAN interface

reMOTe i/O Connection of 8 or 12 REMOTE RTD sensors and up to 12 digital in- and 12 digital output signals to be used for local control functions at a remote IP 54 connection box installed beside the drive saving a lot of cabling work.

RTD PCB 1

Left bearing (Machine)

2

Right bearing (Machine)







MiMic diAgrAM WiTh led POsiTiOn indicATOrs A mimic diagram with position indicators provides clear status information about the main circuit to the operator. All position indicators including the SCR symbols are LED illuminated. The LED alternate between red / green and grey colour for the various status conditions.







single line 1

Incoming panel ICCP (o)

2

VFS panel

3

Bus bar

4

ON – OFF no load switch (o)

5

Earthing switch (o)

6

Current limiting HH fuses (o)

7

Earthing bolt

8

Surge arrestors (o)

9

Measuring voltage transformer

10

Measuring current transformer

11

Mains contactor (o)

12

By-pass contactor

13

SCR power stack

14

Insulation plate (o) can be inserted from front

3

14

4

8

5

6

9 7

11

12

13

10

1

2

This single line is only symbolic and might not be in line with point of installation for hardware components

3~

(o) = option Pls consult us if you require other options

insTAllATiOn

IN

M1

M2

M3

M4







IN

M1

M2

M3

M4

insTAllATiOn AlTernATiVe Al TernATiVe b · Stand alone VFS starter · Individual VFS Starter for each motor · Clear motor - starter allocation · High availability

IN

M

M

M

M

3~

3~

3~

3~

M1

M2

M3

VFS 1

insTAllATiOn









PrOFile The first choice for your motor starters should be a company which concentrates on your specific project requirements, supports you and takes full responsibility for the design and production of your starters. Mocotech realises tailor made solutions based on well proven technologies. We combine flexible solutions and high quality to implement your individual project goals. Our full attention is on your selected targets and demands. 60 years experiance in drive technology ensure and guarantee the service availability and operation stability of your plants.

PrOdUcT Mocotech presents with the VFS starter many unique technical features. Mocotech is the first company at the global market which has obtained the IEC 62271-200 type test to meet current safety demands for MV switchgears and motor starters. You receive at MOCOTECH the highest value for your drive technology investment.

serVice Qualified and experienced engineers, take every day the full responsibility for the design, engineering, production and quality control. We provide after sales services for and training of our customers in our headquarters at Rheinberg in Germany. Local dealers and agents are available for site support in most areas around the world.

Mocotech Electronic Soft Starter Type VFS E

Recommend Documents