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OPERATION: OPERATION

710-03261-00D 42

MVS

Series

9.3

Motor, System and Soft Starter Protection Mechanisms

The MVS incorporates extensive protection features to ensure safe operation of the
motor, system and soft starter. Most protection features can be customised to suit
the installation. Use parameter group 3 to control the situation where the
protections will activate and parameter group 21 to select the soft starter's
response. The default response is to trip the soft starter.

9.4 Motor

Overload

Protection

The MVS offers two forms of motor overload protection:

•

a motor thermal model that monitors the performance of the motor and
calculates its status at all times. This protection is based on the motor
information programmed in parameter group 1, and the thermal model adjusts
itself according to the motor's recent operating history (including temperature
rise from previous operation). This model provides finer motor protection than
the time-overcurrent model, if the programmed motor information is accurate.

•

a time-overcurrent model that calculates the motor's status according to a
predefined performance curve. This method is based on IEEE standard
C37.112-1996 (

Inverse-Time Characteristic Equations for Overcurrent Relays

)

and provides similar protection to a relay. This model may suit users familiar
with time-overcurrent protection models, but provides coarse motor protection.

The two methods offer similar kinds of protection and we recommend using only
one of the two methods.

Motor current

Motor failure curve

Motor thermal model

protection curve

Motor

service factor

Locked rotor

current

Time-overcurrent

protection curve

Typical motor

operating current

NOTE

The soft starter can only be protected from short circuits by suitably
selected R Rated fuses.

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Содержание MVS0080

Страница 1: ...G U I D E MVS SERIES SOFT STARTERS PRODUCT ...

Страница 2: ...arth Terminations 14 4 5 Control Terminations 14 4 6 Terminal Block MVS Controller 14 Power Circuits 15 5 1 Overview 15 5 2 Main Contactor 15 5 3 Bypass Contactor 15 5 4 Main Isolator Earth Switch 16 5 5 R Rated Protection Fuses 16 5 6 Power Factor Correction 17 5 7 Line Inductors 17 5 8 Transient Overvoltage Protection 17 5 9 Control Supply Transformer 18 5 10 Enclosures 19 Control Circuits 20 6 ...

Страница 3: ...ms 42 9 4 Motor Overload Protection 42 Operating Feedback 43 10 1 Metering Screens 43 10 2 Starter Status 43 10 3 Current 44 10 4 Voltage and Current 44 10 5 Power Metering 44 10 6 Last Start Information 44 10 7 Date Time 44 10 8 Programmable Screen 45 Appendix 46 Menu Maps 46 11 1 Programming Menu 46 11 2 Commissioning Menu 47 11 3 Logs Menu 47 AuCom Enclosures 48 Accessories 49 13 1 Communicatio...

Страница 4: ...nt relays Consult the contactor manufacturer supplier to see if this is advisable Do not connect power factor correction capacitors to the output of MVS soft starters If static power factor correction is employed it must be connected to the supply side of the soft starter The examples and diagrams in this manual are included solely for illustrative purposes The information contained in this manual...

Страница 5: ...ribes the features of MVS soft starters This document has been designed to give engineers a general overview of the functionality of the MVS 2 3 Feature List Starting Constant current Current ramp Stopping Coast to stop Soft stop Protection Under Overvoltage Mains frequency Phase sequence Shorted SCR Motor overload thermal model Instantaneous overcurrent Ground fault Undercurrent Current Imbalance...

Страница 6: ...02 2300 VAC 50 60 Hz V03 3300 VAC 50 60 Hz V04 4160 VAC 50 60 Hz V06 6600 VAC 50 60 Hz V07 7200 VAC 50 60 Hz V11 11000 VAC 50 60 Hz Control Supply Voltage C12 110 VAC 230 VAC MVS Current Rating 0080 80 A AC53b 4 20 1780 0159 159 A AC53b 4 20 1780 0230 230 A AC53b 4 20 1780 0321 321 A AC53b 4 20 1780 ...

Страница 7: ... 59 54 48 45 35 33 MVS0159 136 125 117 108 96 89 70 65 MVS0230 188 173 157 144 129 118 88 81 MVS0321 262 241 218 200 179 164 122 112 AC53b Utilisation Category Format 80 A AC 53b 4 20 1780 Off Time seconds Start Time seconds Start Current multiple of FLC Starter Current Rating amperes Starter Current Rating The full load current rating of the soft starter given the parameters detailed in the remai...

Страница 8: ...650 25 6 1302 51 3 531 20 9 165 363 8 MVSxxxx V06 MVSxxxx V07 832 32 8 875 34 5 817 32 2 810 31 9 864 34 0 800 31 5 1559 61 4 551 21 7 217 478 4 MVSxxxx V11 Contact your local supplier for details Controller The MVS Controller is suitable for use with all MVS soft starters 340 0 13 39 54 0 2 13 Start Stop Reset Input A Input B Start Run Trip Warning Remote RLA RLB RLC S e r i e s START LCL RMT F1 ...

Страница 9: ...cy 45 Hz to 66 Hz Rated Insulation Voltage MVSxxxx V02 xxx 11450 VAC MVSxxxx V03 xxx 11450 VAC MVSxxxx V04 xxx 11450 VAC MVSxxxx V06 xxx 16800 VAC MVSxxxx V07 xxx 18200 VAC MVSxxxx V11 xxx TBA Rated Impulse Withstand Voltage BIL Overvoltage Category III MVSxxxx V02 xxx MVSxxxx V07 xxx 45 kV MVSxxxx V11 xxx TBA Form Designation Bypassed semiconductor motor starter form 1 Control Inputs Start Termin...

Страница 10: ... 15 MHz to 0 5 MHz 79 dB µV 0 5 MHz to 30 MHz 73 dB µV Radiated Radio Frequency Emission 0 15 MHz to 30 MHz 80 50 dB µV m 30 MHz to 100 MHz 60 54 dB µV m 100 MHz to 2000 MHz 54 dB µV m This product has been designed for Class A equipment Use of the product in domestic environments may cause radio interference in which case the user may be required to employ additional mitigation methods EMC Immuni...

Страница 11: ...cts of operation including starting and stopping protection mechanisms and signal inputs and outputs The simulations are accessed via the Commissioning Menu Low Voltage Test Mode The low voltage test mode lets commissioning staff check the soft starter s electrical configuration safely without requiring access to specialised medium voltage equipment The MVS can start and stop a small three phase m...

Страница 12: ... inch The power assembly is mounted in place using four M12 bolts One bolt is required through each corner at the base of the unit tightened to a torque of 40 Nm Individual phase arms are secured within the frame using three M10 bolts tightened to a torque of 17 Nm Front of Unit A To suit M12 mounting bolt Horizontal Cross section A mm inch B mm inch C mm inch MVSxxxx V02 MVSxxxx V03 MVSxxxx V04 6...

Страница 13: ...tighten the nuts onto the studs NOTE Before installation always ensure that you are using the correct controller for the soft starter This can be checked by comparing the serial number on the back of the controller with the serial number on the front of the power assembly Serial number MAIN CONTROL MODULE MVS 0321 V04 C12 S N 989898 0 IND CONT EQ 32AN Z79 C US UL Serial Number MVS 0321 V04 C12 O C...

Страница 14: ...ear of Unit i i a b d e f g h g h T1 T2 T3 L3 L2 L1 T3B T2B T1B a b c a b c d e f g h i mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch MVSxxxx V02 MVSxxxx V03 MVSxxxx V04 228 8 98 79 3 11 744 29 29 79 3 11 129 5 08 179 7 05 200 7 87 200 7 87 200 7 87 MVSxxxx V06 MVSxxxx V07 228 8 98 79 3 11 804 31 65 107 4 19 164 6 46 222 8 72 268 10 55 268 10 55 268 10 55 MVSxxxx V11 Cont...

Страница 15: ...terminals Use a screwdriver to open the terminal clamp then insert the wire into the terminal cage Release the clamp by removing the screwdriver Cable 2 5 mm2 max 3 mm 3 mm 4 6 Terminal Block MVS Controller Terminations on the MVS Controller use plug in terminals Unplug the terminal blocks complete the wiring then re plug the terminal blocks into the controller 24 VAC Relay Outputs Control Supply ...

Страница 16: ...n page 16 To ensure that the potentially dangerous medium voltage area is isolated from the low voltage control area power is supplied to the main contactor coil from the control voltage terminal block refer to Diagram 4 Internal Wiring on page 21 5 3 Bypass Contactor The MVS must always be installed with a bypass contactor Select a contactor with an AC1 rating greater than or equal to the full lo...

Страница 17: ...h switch can be connected on the supply side of the main contactor refer to Diagram 2 Complete Power Circuit Configuration on page 18 CAUTION The main isolator earth switch should only be operated when the motor is not running 5 5 R Rated Protection Fuses If specified R Rated protection fuses can be installed on the supply side of the soft starter to provide Type 2 coordination and short circuit p...

Страница 18: ...ct a contactor according to the required kVAr The contactor must be connected on the supply side of the soft starter The power factor correction capacitor contactor coil is associated with output terminals 33 34 of the soft starter s power interface PCB To ensure that the potentially dangerous medium voltage area is isolated from the low voltage control area power is supplied to the power factor c...

Страница 19: ...p control 110 VAC SECONDARY REMOTE RESET PUSHBUTTON S1 START STOP SIGNAL K1A S1 K1A 15 10 T3B CONTROL SUPPLY TRANSFORMER PT2 PT2 110 VAC Wh Bk Bk Wh MAIN ISOLATOR EARTH SWITCH BYPASS CONTACTOR MAIN CONTACTOR R RATED PROTECTION FUSES COMMS MODULE OPTIONAL CONTROLLER POWER INTERFACE PCB CONTROL VOLTAGE TERMINAL BLOCK POWER ASSEMBLY DESCRIPTION Q1 K2M K1M F1 A6 A4 A3 A2 A1 ITEM A6 A4 A3 A2 A1 Q1 F1 5...

Страница 20: ...ly should be mounted at the bottom of the enclosure and the MVS Controller can be mounted on the front panel The diagrams below illustrate one possible configuration for installation Front View Welded steel plinth Earth switch viewing window Rear View Line bus bars Motor bus bars Side View Interlock mechanism Fuses Main contactor Rear cabling cavity Power assembly Bypass contactor Low voltage trun...

Страница 21: ...ULE OPTIONAL MAIN CONTACTOR BYPASS CONTACTOR T3 T2 T1 L3 L2 L1 T3B T2B T1B A1 K1M K2M 110 130 VAC 220 240 VAC 15 10 15 10 TX RX RX TX A12 A11 A12 A11 33 34 RUN OUTPUT PFC FEEDBACK SIGNAL BYPASS CONTACTOR C74 C73 C42 C41 ANALOG OUTPUT PROGRAMMABLE B11 B10 OUTPUT C PROGRAMMABLE OUTPUT B PROGRAMMABLE OUTPUT A PROGRAMMABLE 61 62 64 51 52 54 44 43 24 23 14 13 B5 B4 OPTIONAL COMMS MODULE THERMISTOR MOTO...

Страница 22: ...INSTALLATION CONTROL CIRCUITS MVS Series 21 710 03261 00D 6 2 Internal Wiring Diagram 4 Internal Wiring ...

Страница 23: ...ol These inputs should be controlled by contacts rated for low voltage low current operation gold flash or similar Reset Stop Start C32 C31 C24 C23 C42 C41 Two wire control Reset Stop Start C32 C31 C24 C23 C42 C41 Three wire control Reset Stop Start C32 C31 C24 C23 C42 C41 Four wire control start stop reset start stop reset start stop reset CAUTION Do not apply voltage to the control input termina...

Страница 24: ...o thoroughly test the soft starter and its associated power and control circuits The low voltage test mode provides a means of testing the soft starter s configuration without requiring a full medium voltage test facility To perform the low voltage test one non conduction resistor assembly must be connected to each phase arm three resistor assemblies are supplied with the soft starter During the l...

Страница 25: ...e phase mains supply with voltage less than 500 VAC frequency 50 Hz or 60 Hz 4 Set parameter 1 A Motor Full Load Current to the value shown on the motor name plate Set parameters 3 U Overvoltage Level and 3 W Undervoltage Level to suit the low voltage mains supply 5 Switch on control and mains supply and use the MVS to start the motor The start command can be sent from the MVS Controller or via th...

Страница 26: ...mary motor Customisable Protection The MVS offers comprehensive protection to ensure safe operation of the motor and soft starter The protection characteristics can be customised extensively to match the exact requirements of the installation Advanced Thermal Modelling Intelligent thermal modelling allows the soft starter to predict whether the motor can successfully complete a start The MVS uses ...

Страница 27: ...creens The Commissioning Menu provides access to tools which assist setup when the soft starter is deployed The Commissioning Menu is accessed by pressing the SETUP TOOLS button while viewing the metering screens The Logs Menu provides viewing access to the Event and Trip Logs and the soft starter s performance counters The Logs Menu is accessed by pressing the LOGS button while viewing the meteri...

Страница 28: ...he parameter list To cancel changes press the UNDO button The MVS Controller will return to the currently saved setting To end edit mode press the button The MVS Controller will return to the parameter list and any unsaved changes will be lost You can access the Programming Menu at any time including while the soft starter is running Any changes to the start profile take effect after the next star...

Страница 29: ...LEDs report the operating status of the soft starter The Start LED is on while the starter is starting running or stopping The Run LED is on while the starter is running The Trip LED is on when a trip has occurred The Warning LED is on while a warning is active The Remote LED is on when remote mode is selected The Control Input LEDs activate when a signal is present at the corresponding control te...

Страница 30: ...eset the thermal model press the button At the confirmation prompt press STORE to confirm or UNDO to cancel the action Cancelling the action returns to the Commissioning Menu When the thermal model has been reset the screen will briefly display a confirmation message then return to the previous screen Reset Thermal Models Reset Parameter Archive The parameter archive menu allows users to restore t...

Страница 31: ...re operating correctly The simulation tools can be accessed via the Commissioning Menu Press the SETUP TOOLS button then use the button to scroll through the menu to the required simulation NOTE The simulation tools are only available if the Programming Menu is unlocked parameter 20 B Adjustment Lock is set to Off Run Simulation The MVS Controller allows the user to simulate a motor starting runni...

Страница 32: ...ting Starting Phase 1 The Start LED activates on the MVS Controller and the Phase 1 firing LED blinks on the power interface PCB 5 Press the button to proceed to the next stage of the simulation The MVS simulates running Running Phase 2 Wait for Stop Signal The bypass contactor closes and the Run LED activates on the MVS Controller The Phase 2 firing LED blinks on the power interface PCB If parame...

Страница 33: ...display will indicate the first simulation in the list Current Imbalance Simulate 3 Use the and buttons to select a protection to simulate The following protection conditions are available to simulate Motor overload Undercurrent Instantaneous overcurrent Current imbalance Mains frequency Auxiliary trip A Auxiliary trip B Motor thermistor Excess start time Starter communication failure Battery Cloc...

Страница 34: ...B Relay C 1 To test the flags set an output relay parameters 5 A to 5 C to the appropriate function and monitor the relay s behaviour 4 Once the required simulation is displayed press to confirm the selection Low Current Flag Simulate 5 Press the button to start the simulation Pressing the button stops the signal Low Current Flag On Off While the signal is being simulated the display will indicate...

Страница 35: ...rent Ramp Start Ramp Time 2 E Kickstart Current Level 2 F Kickstart Duration 2 G Excess Start Time 2 H Stop Mode 2 I Soft Stop Ramp Time Protection Settings 3 A Undercurrent Level 3 B Undercurrent Trip Delay 3 C Instantaneous Overcurrent Level 3 D Instantaneous Overcurrent Trip Delay 3 E Current Imbalance Level 3 F Current Imbalance Trip Delay 3 G Phase Sequence 3 H Mains Frequency Trip Mode 3 I M...

Страница 36: ...p Ring Rotor Resistance Contactor Time 9 D Slip Ring Conduction Retardation HMI Settings 11 A Language 11 B F1 Pushbutton Function 11 C F2 Pushbutton Function 11 D Programmable Screen Top Left 11 E Programmable Screen Top Right 11 F Programmable Screen Bottom Left 11 G Programmable Screen Bottom Right Secondary Motor Settings 12 A Motor Full Load Current Start Stop Modes 2 13 A Start Mode 13 B Cur...

Страница 37: ...nput A Input B Start Run Trip Warning Remote RLA RLB RLC S e r i e s START LCL RMT F1 LOGS UNDO STOP RESET F2 SETUP TOOLS STORE Fn Starter Status Control Inputs Relay Outputs Logs button Logs Menu Event Log Trip Log Performance Counters Hours run resettable Total elapsed time Start counter resettable Total starts kWh counter resettable Total kWh Thermal model reset To navigate through the Logs Men...

Страница 38: ...FF power removed RESTORE power restored OP Operation Load Defaults restore default settings Load set 1 load stored parameter set 1 Load set 2 load stored parameter set 2 RESET Thermal reset thermal model RESET hrs run reset hours run counter RESET starts reset starts counter RESET kwh reset kWh counter Save set 1 save user parameter set 1 Save set 2 save user parameter set 2 SET Time set date time...

Страница 39: ...og stores details of the eight most recent trip conditions Trip 1 is the most recent and trip 8 is the oldest stored trip The MVS stores information about the current and voltage on each phase when the trip occurred and you can access details about each phase by using the and buttons To access details of the next trip use the and buttons To close the log and return to the main display press Main s...

Страница 40: ...er press the button from the appropriate screen and press the STORE button to confirm the action Hours Run 987654 32 Reset Reset Hours Run OK store Press STORE to reset or UNDO to cancel Total Elapsed Time 123456 78 Start Count 35 reset Reset Start Counter OK Store Press STORE to reset or UNDO to cancel Total Starts 45 kWh count x reset Reset kWh Counter OK Store Press STORE to reset or UNDO to ca...

Страница 41: ...nning Starting Pre start tests Ready Start command Bypass contactor close time Sub states Rotor resistance contactor close time High rotor resistance current ramp retard Low rotor resistance current ramp retard Main contactor close time Output voltage 100 voltage Voltage at conduction retard States In order to use the MVS with a slip ring motor set the following parameters parameter 9 A or 9 B Pri...

Страница 42: ...OPERATION OPERATION MVS Series 41 710 03261 00D Diagram 5 Slip Ring Motor Connection ...

Страница 43: ...itself according to the motor s recent operating history including temperature rise from previous operation This model provides finer motor protection than the time overcurrent model if the programmed motor information is accurate a time overcurrent model that calculates the motor s status according to a predefined performance curve This method is based on IEEE standard C37 112 1996 Inverse Time C...

Страница 44: ...ogramming Menu 10 2 Starter Status The starter status screen shows real time details of the starter s status including current and temperature Running Stop in 14 02 260A M1 88 Status Auto stop information Parameter set Motor temperature Motor current The information on the screen is arranged as follows top left status information Ready Starting Running Stopping or Tripped top right auto stop infor...

Страница 45: ...ng the display will show in place of voltage and 0 A current 10 5 Power Metering The power metering screen shows details of total motor power motor horsepower motor active power and power factor 2515 kW 3372 hp 2970 kVA 0 92 pf 10 6 Last Start Information The last start information screen shows details of the most recent successful start start duration seconds maximum start current drawn as a perc...

Страница 46: ...and returns to the metering screens To return to the metering screens without saving changes press the button repeatedly 10 8 Programmable Screen The programmable screen shows the information selected in parameters 11 D to 11 G Starting 1040A 11540 1080 The default settings are starter state motor current kWh and hours run ...

Страница 47: ...APPENDIX MENU MAPS 710 03261 00D 46 MVS Series Appendix Menu Maps 11 11 1 Programming Menu Section 4 Chapter 11 ...

Страница 48: ...g warning or writing to log Reset Thermal Models Reset the soft starter thermal model if required in emergencies Commissioning Menu Reset Thermal Models Parameter Archive Run Simulation Protection Simulation Output Signal Simulation 11 3 Logs Menu Event Log Stores key information about the last 99 events involving the soft starter Configuration changes Starts stops and resets Trips Warnings Logged...

Страница 49: ...ut can be top or bottom entry and power input can be provided from either cables or top horizontal bus bars The diagrams below illustrate one possible configuration for installation Front View Welded steel plinth Earth switch viewing window Rear View Line bus bars Motor bus bars Side View Interlock mechanism Fuses Main contactor Rear cabling cavity Power assembly Bypass contactor Low voltage trunk...

Страница 50: ...ach to the back of the MVS Controller Modbus Interface Part Number PIM MB 01 The Modbus Interface enables control and monitoring via a Modbus RTU network Refer to the Modbus Interface Instructions for further details Profibus Interface Part Number PIM PB 01 The Profibus Interface enables control and monitoring via a Profibus network Refer to the Profibus Interface Instructions for further details ...

Страница 51: ...tarter ranges Feature CSX CSXi IMS2 MVS Operational Control Start Stop Reset Quick Stop Starter Status Monitoring Ready Starting Running Stopping Tripped Performance Monitoring Motor Current Motor Temperature Upload Parameter Settings Download Parameter Settings To use WinMaster with the MVS the soft starter must be fitted with a Modbus Interface PIM MB 01 Refer to the WinMaster User Manual for fu...

Страница 52: ...NOTES MVS Series 51 710 03261 00D ...

Страница 53: ...NOTES 710 03261 00D 52 MVS Series ...

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