Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

LV Compact Soft starter Familiarisation Presentation - SSUK

1,315 views

Published on

  • Be the first to comment

  • Be the first to like this

LV Compact Soft starter Familiarisation Presentation - SSUK

  1. 1. LV-AS Soft Starter Product Introduction and Familiarisation
  2. 2. Overview • 18 A ~ 200 A (7.5 ~ 110 kW @400 VAC) • Soft start/stop + essential motor and system protection • Compact and cost-effective • Easy to configure
  3. 3. Current Ratings • Current rating – 18 A ~ 200 A – 7.5 ~ 220 kW @ 400 VAC AC53b 4.0-6:354 AC53b 4.0-6:594 0018A 0034A 0042A 0048A 0060A 0075A 0085A 0100A 0140A 0170A 0200A Models
  4. 4. Supply Voltage Options Maximum Voltage Rating • Mains voltage: V4 = 200~440 VAC V6 = 200~575 VAC LV-DS-140-V4-C1
  5. 5. All LV-AS models are available in two control voltage configurations. LV-AS -140-V4-C1 Control Supply Voltage C1 = 110-240 VAC or 380-440 VAC C2 = 24 VAC / VDC (eg PLC control) Control Voltage Options
  6. 6. Standard Approvals • CE: IEC 60947-4-2 • C Tick • RoHS: Compliant with EU Directive 2002/95/ECCCC
  7. 7. Environmental • IP20: - 18 ~ 100 A - 140 ~ 200 A (when installed with optional finger guards) • IP00: - 140 ~ 200 A
  8. 8. FEATURES AND BENEFITS
  9. 9. Key Selling Points • Easy and economic to install • Soft start/stop plus motor/system protection • Fast and easy to configure
  10. 10. Economic to Install • Compact design minimises panel space • Integrated bypass • Relay outputs to assist system integration
  11. 11. Motor Control and Protection • Offers the most popular soft start and soft stop methods. • Essential motor and system protection – no need for dedicated protection equipment, no need to pay for unnecessary features.
  12. 12. Balanced Vector Control • The affordability of two phase control, with operating characteristics closer to three phase control. K1M 4/T2 1/L1 3/L2 5/L3 2/T1 6/T3 3 PHASE SUPPLY TO MOTOR
  13. 13. Interface • Easy to use setting dials • Status feedback • Trip codes
  14. 14. ECONOMIC TO INSTALL
  15. 15. Compact Physical Design • Small footprint to minimise panel space requirement. • Din Rail Mount up to 60A Three frame sizes in total 18~60A 75~100A 140~200A
  16. 16. Built-in Bypass • Built-in bypass (≤200 A) reduces heat dissipation, eliminating costs of external fans or bypass contactors.
  17. 17. Relay Outputs • Fixed Output Relay (13-14) – designed to control a line contactor – relay is closed while the soft starter is starting, running or stopping the motor
  18. 18. Relay Outputs • Programmable Output Relay (23-24) • Is designed to provide a N/O contact which reports the soft starter status , it can be configured to indicate a trip or run (operating in bypass) . • Trip Output – operates when the soft starter trips – use to operate a shunt trip of an upstream Circuit Breaker or signal the trip status to an automation system • Run Output – operates on completion of the start ramp – use to operate a contactor for power factor correction capacitors or signal the run status to an automation system
  19. 19. Electrical Schematic
  20. 20. Soft starter installed with a system protection circuit breaker complete with a shunt trip device Installation
  21. 21. USER-FRIENDLY INTERFACE
  22. 22. Simple Interface Ready Run Off No control power Motor not running On Ready Motor running at full speed Flash Tripped Motor starting or stopping
  23. 23. Simple Interface • Easy access to configuration dials on front of unit. • Fast and easy to configure – 8 settings • Status feedback LEDs
  24. 24. Adjustments • Eight adjustments can be made on the LV-AS soft starters: – Current Limit – Current Ramp – Stop Ramp Time – Motor FLC – Motor Trip Class – Excess Start Time – Phase Sequence Protection – Auxiliary Relay Function
  25. 25. LV-AS Setup • Motor FLC – – All motor protections are based on this setting. – The minimum “Motor FLC” setting is 50% of the LV-AS nameplate rating. Range 50-100% Example – LV-AS-018 18A If the motor FLC on the motor nameplate = 15A The motor FLC (% soft starter FLC) = Motor FLC ÷ LV-AS FLC 15A FLC ÷ 18A LV-AS FLC = .83 or 83% setting
  26. 26. Constant Current • Ideal where start current must be kept below a particular level. • Current is passed at the selected level until the motor has accelerated. Initial current Current limit Full voltage current 1 2 3
  27. 27. • Current Limit – (%FLC) Factory setting 350%. It provides the maximum start current from 250 – 475% FLC covering all types of general applications. • 60% of motor applications are for centrifugal pumps. • These have quadratic load characteristics measured as TN2 (torque is proportional to speed squared) LV-AS Setup
  28. 28. Current Ramp • Current rises from a specified starting level to a maximum limit, over an extended period of time. • Useful for applications where: – the load can vary between starts – the load breaks away easily, but starting time needs to be extended – the electricity supply is limited (eg generator sets)
  29. 29. Current Ramp 4 Initial current Start ramp time Current limit Full voltage current 1 2 3
  30. 30. • Current Ramp – (% FLC/Ramp Time) Factory setting = Off • The LV-AS offers current ramp soft starting. During a current ramp soft start , the LV-AS raises the current to an initial level, then increases the current to the current limit , over a user defined period (up to 15 seconds) LV-AS Setup
  31. 31. Stop Methods • Soft starters help eliminate the damaging effects of fluid hammer. Stop Method Performance Effect Coast to stop Natural load run down Timed voltage ramp Extended run down time
  32. 32. Timed Voltage Ramp • Reduces voltage to the motor gradually over a defined time. • Load may continue to run after the stop ramp is complete. • Useful for applications where the stop time needs to be extended, or to avoid transients on generator set supplies.
  33. 33. Timed Voltage Ramp Stop time1
  34. 34. • Soft Stop – Factory setting – No soft stop • The LV-AS offers a timed voltage ramp soft stop. The soft starter reduces its output voltage over a specified period (0 to 20 Seconds) , adding inertia to the load and allowing the motor to slow down gradually • Coast to Stop • A setting of 0 seconds removes voltage immediately allowing the motor to coast to stop LV-AS Setup
  35. 35. • Motor Trip Class – Class 10 general setting • Excess Start Time – Factory setting = 10 ( used in case the motor stalls or a characteristic has changed) • Added backup – even when the excess start time is set to off it automatically defaults to 120 seconds • Phase Sequence/Aux Relay Set • (Example Can tell a PLC if the LV-AS trips) • Any rotary switch settings adjusted during run will only take effect on the next start. LV-AS Setup
  36. 36. ESSENTIAL PROTECTION
  37. 37. Diagnostic Trip Codes • X1 Power Circuit Fault –Check mains supply – shorted SCRs • X2 Excess Start Time – Check load, increase current limit or adjust setting • X3 Motor Overload – Allow motor to cool, reset & restart. 105% • X4 Motor Thermistor – Check motor ventilation and connection B4&B5. • X5 Phase Imbalance- Check line current L1,L2 & L3 • X6 Supply Frequency –Trip points <40Hz and >72Hz , loss of 3 phases • X7 Phase Sequence – check phase rotation & rotary pot setting • X8 Communication Failure – Network – between interface and network • X9 Communication Failure – Starter – between starter and interface • X10 Bypass Relay Overload – Check application during run
  38. 38. Motor/Starter Protections • Motor Overload (thermal model) • Excess Start Time • Bypass Relay Overload - bypass relay temperature - 600% FLC • Motor Thermistor (built-in thermistor input)
  39. 39. System Protections • Power Circuit Fault (mains supply, motor circuit, starter SCRs) • Phase Imbalance • Supply Frequency (<40Hz and >72Hz) • Phase Sequence • Communication Failure (between communication module and starter or network)
  40. 40. OPTIONS
  41. 41. Communication Options • Plug-in communication modules: – USB – Modbus – DeviceNet – Profibus – ModbusTCP – EthernetIP – Profinet
  42. 42. Remote Operator • Operational control (start, stop, reset) • Operating feedback (status, current and temperature) • Maximum cable distance 100 m
  43. 43. Software Tools • WinStart – Sales Engineer software (not for end users) – Selects the right starter for the application • WinMaster – Control, monitor and program starters remotely
  44. 44. BALANCED VECTOR CONTROL
  45. 45. Balanced Vector Control Typical two phase waveforms Three phase starting waveform Balanced Vector Control • Two phase control with the waveform symmetry of three phase control.
  46. 46. • A superior control algorithm that minimises the imbalance between the controlled and uncontrolled phases. • Balanced vector control gives: – more uniform motor acceleration torque – more evenly balanced phase currents – lower noise & vibrations Balanced Vector Control
  47. 47. • Compared with other two phase starters: – More starts per hour – Heavier duty loads – Larger motors Balanced Vector Control

×