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VE Training in 2006

VE Training in 2006. Tainan Plant Dunrong Lee Taoyuan Plant Zhiming Xu. 2006/12/18. 1. VE Presentation 2. Q & A 3. Demo 4. Actual Operation. Outline. Product Specifications and Features Differences between VE and V New Accessories of VE series Functions Applications.

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VE Training in 2006

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  1. VE Training in 2006 Tainan PlantDunrong Lee Taoyuan Plant Zhiming Xu 2006/12/18

  2. 1. VE Presentation 2. Q & A 3. Demo 4. Actual Operation

  3. Outline • Product Specifications and Features • Differences between VE and V • New Accessories of VE series • Functions • Applications

  4. Voltage Tolerance Applicable Motor Output (kW) 0.75 1.5 2.2 3.7 5.5 7.5 11 15 18.5 22 30 37 45 55 75 3-phase 230V 180~265Vac B Frame C Frame D Frame E1 Frame Built-in Brake Chopper Built-in DC Reactor 3-phase 460V 340~510Vac B Frame C Frame D Frame E Frame E1 Frame Built-in Brake Chopper Built-in DC Reactor Models Model Number VFDxxxVxxA-2 *2. Fan cooling for all series (except 1HP) *3. No built- in EMI for all series *4. Built-in digital keypad(KPV-LE01) *1. VFD110V43B-2 is C Frame under development VFD550V/750C 43C-2 is E1 Frame under development

  5. 007 015 022 037 055 075 110 150 185 220 300 370 450 550 750 CT Rated Current 5 7.5 11 17 25 33 49 65 75 90 120 146 Applicable Motor Output (HP) 1 2 3 5 7.5 10 15 20 25 30 40 50 VTRated Current 6.25 9.4 13 21 31 41 61 81 93 112 150 182 Applicable Motor Output (HP) 1.5 2.5 4 7.5 10 15 20 25 30 40 50 60 CT Rated Current 3 4.2 6 8.5 13 18 24 32 38 45 60 73 91 110 150 Applicable Motor Output (HP) 1 2 3 5 7.5 10 15 20 25 30 40 50 60 75 100 VT Rated Current 3.8 5.3 7.5 10 16 22 30 40 47 56 75 91 113 138 188 Applicable Motor Output (HP) 1.5 2.5 4 7.5 10 15 20 25 30 40 50 60 75 100 125 Two Rated CT/VT * Designed for standard motor application Codes 3-phase 230V 180~265Vac 3-phas 460V 340~510Vac CT Overload Endurance: 150% of rated current for 1 minute, VT Overload Endurance: 120% of rated current for 1 minute CT: It is applied to constant-torque load. Take conveyer belt for example. Its necessary torque does not change with the motor speed. And constant torque usually needs larger starting torque. As the motor generates heat easily when constant torque is applied to lower speed, it is better to increase the horsepower or use the motor special for AC motor drive with constant cooling fan. VT: It is applied to variable-torque load. Such as pump, fan…etc. They are centrifugal machines, who use AC motor drive usually for energy saving. For example, when a fan is running at 50% of the full speed, its necessary torque is smaller than when it is running at full speed. As for the drive with variable torque, it can provide the motor only with necessary torque to save energies. In the applications like this, the maximum transient loads needn’t to be provided extra power. So the drive with variable torque is applied widely for its load endurance. What’s more, the overload current endurance of the drive with constant torque is 150% of rated current for 1 minute, while the drive with variable torque only 120% of rated current for 1 minute because the current of centrifugal machines rarely exceed the rated current. In addition, its starting torque is smaller than that of constant torque.

  6. VE Standard feature Tuning Technique SPWM tuning technique Control Mode V/f control /PG FOC vector control /PG SVC(sensor less) Torque control /PG Position control PID Speed Control Range V/f control 1:10 FOC vector control 1:100 FOC+PG1:1000 1. 2 sets of electronic thermal Protection 2. PTC temperature sensor 3. 2 sets over torque protection 4. Current limit 5. Stall prevention during acceleration 6. Stall prevention during operation Torque Limit Motor Protection Max 250% of rated current Torque Accuracy ±5% Maximum Output 0~ 600 Hz VEH up to 3600Hz Overload Endurance 150% 60sec 200% 2sec 0.00~ 600.00 sec 0.0~ 6000.0 sec Accel/Decel Time 1. Over-current: 300% of rated current 2. Overload: 150% 60sec 200% 2sec 3. Over-voltage: 290/580Vac 4. Low-voltage: 135/269Vac 5. Current leakage: 50% of rated current 6. Electric shock MOV 7. Over-temperature: 90oC 8. Compensation for the momentary power loss 9. Phase loss protection AC Motor Drive Protection Accel/ Decel Curve 4 steps S curve for set Acc./Dec. start and stop time independently Starting Torque 0.5Hz 150% 0Hz 150% for FOCPG mode Accel/ Decel Steps 1. 4 group Acc./Dec. time 2. Jog Acc./Dec. time 3. Auto Acc./Dec. setting Speed control accuracy FOC±0.2% FOC+PG ±0.02% Voltage/ Frequency Random V/f curve setting by using 4 independent points 1.5/2.0 power curve Speed Response Ability FOC+PG 40Hz

  7. VE Advanced feature Double rated motor Y- △ switch Light-load auto energy-saving DEB deceleration Mechanical braking control 10 convenient communication block transmit Serial I/O pulse position control Torque and speed mode switch Dual communication port RS485 KPV-CE01Communication Keypad PG Encoder Feedback card BUS Gateway Monitor card and Software Digital I/O, analog I/O Control Interface Specialized Application Parameter s Tuning 1. Motor dynamic/static test 2. Inertia estimation 3. High- speed field weakening curve estimation Position Control 0 speed control PI gain setting 16 point to point control P to P Home return positioning 16 point position instruction Pulse that following speed and location Division frequency output NEMA 1/IP21 Operation temperature: -10oC~40 oC Storage temperature: -20oC~60 oC Ambient humidity: below 90%RH Vibration: 20Hz below 1G 20~60Hz 0.6G Fan cooling Altitude limit: 1000m Environmental

  8. Differences between VE and V (hardware-control board) VFD-V series Monitor card VFD-VE series PG03 card 7149 PG card terminals 7045 ACI input selection J4 SW1: Sink/ Source mode AFM output selection J8 DFM output selection J5 Same power board I/O pin to pin

  9. Multi-function analog input terminals 03-00~03-17 AVI:0~+10V 10bits ACI:4~20mA or 0~+10V selected from J4 AUI:-10~+10V Caution: J4 cannot be set while the power is applied. Multi-function Relay output Relay 1:02-11(RA,RB,RC) Relay 2:02-12(MRA,MRC) DFM: Digital frequency output terminal 02-18 It is selected from J5 that Output type is voltage or open collector. MCM +24V FWD MI1 MI3 MI5 DFM MRA RA RC +10V AVI ACM MO1 MO2 DCM REV MI2 MI4 MI6 AFM E MRC RB AUI ACI AFM: multi-function analog output terminal 03-18,19,20 It is selected from J8 that output is 0~10V or 0~20mA. Multi-function digital output MO1:02-13 MO2:02-14 (Open collector output type) Multi-function digital input terminal SW1:Sink/Source MI1:02-01(3-wire designated terminal) MI2:02-02 MI3:02-03 MI4:02-04 MI5:02-05 MI6:02-06(TRG-designated terminal) I/O Control Terminal 1. All digital terminals use photocoupler. 2. All analog circuits are no isolated.

  10. Differences between V and VE (Keypad) VE type KPV-CE01 V type VFD-PU05 It can memorize 4 groups of parameters. It can memorize 2 groups of parameters.

  11. Speed Feedback Card of VE (PG) 1 2 3 EMV-PG01O EMV-PG01X EMV-PG01L 1. 5V encoder power supply 2. PG1: encoder feedback 3. PG2: pulse command input 4. Division Pulse output: Line drive type 5. Acceptable encoder signal types: Open Collector, Line drive, Output Voltage and complementary type 6. Bandwidth: 300kP/sec 1. 5V/12V encoder power supply 2. PG1: encoder feedback 3. PG2: pulse command input 4. Division Pulse output: Open Collector type 5. Acceptable encoder signal types: Open Collector, Line drive, Voltage and Complementary type 6. Bandwidth: 300kP/sec 1. 5V/12V encoder power supply 2. PG1: encoder feedback 3. PG2: pulse command input 4. No pulse output terminal 5. Acceptable encoder signal types: Open Collector, Line drive, Voltage and Complementary type 6. Bandwidth: 300kP/sec

  12. 01L 01X 01O E A/O VP A/O Open Collector output Type Line Drive Output Type DCM B/O EMV-PG01O A/O B/O B/O Z/O EMV-PG01X Z/O Z/O PG Card-EMV-PG01X/O/L PG1 output terminals of pulse frequency division FSW3 Encoder Power supply VP terminal 5V/12V switch FSW2 PG2pulse signal mode switch FSW1 PG1encoder signal mode switch A1 A1 B1 B1 Z1 Z1 DCM VP A2 A2 B2 B2 PG1 motor encoder feedback input terminal PG2 pulse command input terminal Power supply terminal

  13. Differences between VE and V (software) 1. Can be applied to winding & tension systems 2. VE’s Acc./Dec. characteristics can be use in more type of CNC machine 3. PDFF function and load inertia tuning 4. Stable run at zero speed and home search function 5. Improvement of noise endurance and signal treatment with new PG card 6. Monitor card and software which makes parameter setting and problems solving more convenient. 7. Y-△ switch control for wide-range motor in CNC machine field 8. Easy parameter setting and control for the elevator 9. Light load auto energy saving function to avoid motor burn-out duo to long time running especially in CNC machine application 10. Motor temperature feedback (PTC) function for motor over heat protection

  14. VE Communication Connection Diagram RS485 Keypad Communication Port RS-485 Communication Port RS-485 Communication Port

  15. AC Motor Drive Comparison between V/Hz and FOC   V/f  FOC  Control Parameters Frequency：the function of running speed Voltage: constant V/Hz to maintain constant flux. Frequency, voltage and vector ( phase relations among magnetic field, rotor and stator) use precise current loop adjustor to control current.  Torque To calculates the optimum slip so that can generate maximum torque and apply it into the whole speed range. No control. Speed error is relevant to the motor slip curve. The torque is proportional to the slip.  Speed Control It provides linear speed control from 0 to basic speed. Open-loop control. The running speed is not linear in the speed range.  Torque Control Slip induces rotor current to generate torque. Because current and toque can not be instantly controlled, so dynamic response is not good. Magnetic rotor’s flux vector value would be precisely controlled, so that torque can be controlled instantly. Can not be done cause couldn’t control motor torque and it is open-loop control which mean no encoder feedback. Vary precisely because the current of generating torque and the excitation current can be precisely and separately controlled. Also It is available to use encoder feedback for position control. Position Control Torque Control at Low Speed Worse; because frequency reduced will cause rotor’s impedance increase which makes stator and rotor’s coupling become smaller. Armature current does not generate proportional torque which makes motor running efficiency worse. Better: Rotor’s flux vector can be controlled so that it makes rotor’s flux and current vector maintain at 90°. Torque Control at Zero Speed It can be up to 150% of rated torque. Stator and rotor has the minimum coupling effect which normally only 30% of the rated torque

  16. No Encoder Feedback V/F FOC DTC FOC Introduction The FOC control is a method that controls 3-phase AC motor drive like DC motor, whose torque is proportional to its output current . Control Family Torque Control No Encoder Feedback Encoder Feedback FOC DTC FOC+PG Speed Control Encoder Feedback FOC+PG V/F+PG DTC : Direct Torque Control

  17. Variable Speed Control Family of AC Motor As AC motor has been widely used in industry, the methods relevant to variable speed control have had developed a lot with technology. According to its frame and method, they are sorted as below: Control family FOC(closed loop) Pulse width modulation (open loop) VVCF Control CVVF Control VVVF Control (Direct Field-Oriented Control) (Indirect Field-Oriented Control) (Slip Torque Control) (Field Acceleration Control) Slip tuning control (closed loop) Slip ratio of voltage source inverter Slip ratio of current source inverter Variable speed control without sensor (Virtual control of closed circuit) Magnetic field control with motor speed estimated and voltage/current feedback Magnetic field control with motor speed estimated and current feedback

  18. FOC Family Stator’s magnetic orientation No Feedback Sensor Gas’s magnetic orientation FOC Introduction Flux reference coordinates Motor Mechanical Speed Methods of get synchronous flux angle Rotor’s magnetic orientation With Feedback Sensor Directmethod 1.Install flux-meter to measure flux angle. 2.Estimate flux angle. Indirectmethod Use the summation of motor slip frequency and motor’s electric speed then after integral to get the flux angle. VE adopts indirect method of the summation of rotor’s magnetic orientation and encoder *Reference AC Motor Control by Changhuan Liu

  19. FOC Profile w Iq Is Ib iqs Iqs torque current w Stator Id ids Ia Rotor Ids flux current Ic AC motor’s torque would in direct proportion to stator current Ia+Ib+Ic=0 Ia Ib Ic Ia I T D.C. 90o 180o 270o 360o 450o 540o Ia+Ib+Ic=Is I T Rotor and Id axes overlaps，ids maintains fixed value To calculate Is’s vector sum by mathematical integral Is includes two elements of flux Id and torque Iq It changes the phase’s space position via control Ia Ib and Ic Using instant math mode and according to the position to separate Is into Id flux and Iq torque. Id as the element of DC generates magnetic field while Iq as the element of current generates torque. Keep Ids steady as constant while output torque can be changed directly by changing Iqs. Coordinates conversion

  20. Comparison between FOC and SVC Brand name Order of characteristics ＊Currently Delta use SVC (Sensor-less Vector Control) control mode. The FOC (Field Oriented Control) is under development. ＊It is marked mainly according to the dynamic response and steadiness.

  21. Control diagram iqe tr*ide This is torque control current control Wm(speed control) iqe (torque control) 2/3 ide flux control Qe ia ib Wsl iq decouple id Wr Indirect rotor’s magnetic orientation control diagram *Reference AC Motor Control by Changhuan Liu

  22. Induction Motor Equivalent Circuit and Parameters Auto-tuning Llr Lls Rs Rs : Stator resistance Lσ : Stator’s inductance Rr : rotor’s inductance Lm : Flux mutual inductance Llr : rotor’s leakage inductance Vs Rr Lm Traditional Electrical engineer Equivalent circuit Lσ Rs 05-09 05-21 05-06 05-18 05-07 05-19 05-08 05-20 Vs RR LM VE Equivalent circuit

  23. Parameter adjust and V/f mode Trial Run 7 6 5 3 2 4 1 Parameters are set as factory values and make sure all the wiring is correct. Increase Frequency (slowly) to maximum operation frequency. To check output current and motor’s speed. This is mainly means spindle motor. Because the spindle motor nameplate normally will not match its spec. So, take V/F trial run first. Is the current and speed logically? NO Check point 1.Does current near or exceed full load current? 2.Is the slip too big? YES STOP To set up: Maximum frequency: 01-00 Rated frequency: 01-01 Rated voltage: 01-02 Control mode 00-10=0( VF control mode) Please re-adjust V/F curve and operate again Is the current and speed logically? NO Set the Running frequency as the motor's rated frequency. Check Point 1. Does current decreases when speed is increasing 2. Is the slip too big? YES RUN STOP Congratulations! V/F curve is correct and motor can run at high speed. Motor may not run at over frequency. STOP

  24. Motor Parameters Auto- tuning 2 1 4 Parameters are set as factory values and the all wiring is correct. 3.1 3.2 3.3 Input motor no load current 05-05(guessed) Set 05-00 to 3(static tuning and motor’s axis should be locked), then press RUN. (If it not locked motor will run) Set 05-00 to 1(dynamic tuning), then press RUN. (Notice: motor will run) Set 05-00 to 2(static tuning), then press RUN For a while, it is completed when motor has stopped. This process need about 30 s, with small motor. For large motor, it determined by ACC./DEC. time. Check parameters 05-00,05-06,05-07,05-08,05-09 whether have successfully been written in It will display AUE when it fails. Please check whether wiring and parameters are all correct. Can the load be removed from motor? NO2 YES NO1 according to motor’s nameplate: Rated voltage: 01-02 Rated frequency: 01-01 Full loaded current: 05-01 Motor power: 05-02 Rated speed: 05-03 motor’s poles: 05-04 According to motor’s power to input suitable ACC./DEC. time: 01-12, 01-13 If motor’s base frequency is bigger than maximum operating freq.(01-00), please set 01-00 as the same with 01-01

  25. FOC+PG control mode -Trial Run 1 C B 2 A YES Select PG feedback card that is suitable to encoder power source and signal type. Any PG error or abnormity speed? NO PGF1 check parameters PGF2 wire disconnected PGF3 feedback stall PGF4 slip abnormity Input PPR of encoder : 10-00 EMV-PG01X Operate again after elimination Input encoder’s signal type: 10-01 Check other frequency Set control mode 00-10= 3 (FOC+PG) Change running direction EMV-PG01O Set lower Fcmd for testing Current abnormity Check the numbers of pulse of the encoder weather is the same with parameters10-00 STOP RUN EMV-PG01L Check whether the settings of mechanical electronic gear ratio 10-27,10-28 is all right Correctly installed into drive’s slot and wiring correctly. Operate again after elimination

  26. Inertia Estimation 2 1 3 4 Inertia is estimated wrongly. Decrease the frequency command and estimate again. Continue to estimate Parameters 11-01 has change or not Check the coupling of load and motor are all correctly NO Adjust ACC./DEC. time according to load inertia. The less load inertia need shorter ACC./DEC. time YES Convergence speed is according to different load inertia. The bigger inertia convergence is slower and needs do more test Confirm drive control mode 00-10=3 Set Fcmd to 2/3 of motor’s rated frequency Parameters 11-01 has convergence or not Set 11-00 as 2 NO RUN YES Do FWD/REV running quickly and observe the change of parameters 11-01 Press the PROG/DATAkey for set last convergence into 11-01 Stop motor’s running FWD REV PROG DATA Set 11-00 as 0

  27. Inertia Estimation Frequency command (Hz) 60 SpdRef 40 20 0 -20 -40 -60 0 2 4 6 8 10 12 14 16 18 20 Convergence Load inertia value (PU) 1800 inertia 1600 System will run 1400 1200 1000 800 0 2 4 6 8 10 12 14 16 18 20

  28. Vector control diagram No bias Torque bias 07-28 According to 03-00 analog multi-function According to 07-28 torque bias According to multi-function input terminals ASR low-pass filter 10-09 Torque limit + Source of frequency command 00-20 + + + P - + 07-32~07-35 I PI adjustor 10-21/10-22 zero speed PI 10-04/10-05 middle speed PI 10-06/10-07 high speed PI Base voltage/current: 01-01/01-02 ÷ Current control PWM 00-17 M Encoder 10-00, 10-01 Motor’s parameters 05-01~05-09 Weak magnetism curve coordinates change Current feedback Actual frequency

  29. Vector control -Adjust Methods NO Estimate Jm value YES Manual gain adjust 11-00=0 (factory setting) Set auto gain adjustment 11-00=1 Adjust 10-04, 10-05 : middle speed 10-06, 10-07: high speed 10-21, 10-22: 0 speed Adjust 11-02, 11-03 & 11-11 separately for difference speed which its response need Adjust if it is require 11-04 (PDFF function) Adjust by requirement 10-09(normally no need to adjust) Adjust by requirement 10-08 (ASR1/ASR2 switch frequency) Adjust by requirement 07-32~35 (torque limit)

  30. Vector control- PI Adjustor PI 10-06 10-07 10-04 10-05 10-21 10-22 5 Hz 5 Hz Hz 10-08 0 Hz (PI adjustment-Manual gain adjust) PI 1.Must known inertia first 2.Set 11-00 as 1 11-03 To adjust 10-21, 10-22 for output higher torque at 0Hz 11-02 To adjust 11-11 for output higher torque at 0Hz 11-11 5 Hz 5 Hz Hz 10-08 0 Hz (PI adjustment-auto gain adjust)

  31. Vector control-PDFF PI PDFF • Beside traditional PI control, VE-series also provides PDFF function to reduce overshoot. To enable PDFF function, it need to: • 1.Must know inertia first • 2.Set 11-00 to 1 • 3.Adjust 11-04 (the larger number is set and the suppressed overshoot function will be better. But it will cause worse system response) It is recommended to disable this function (Pr. 11-04=0) for Y- △ connection switch and ASR1/ASR2 switch application

  32. Vector control-Flux Weakening Curve • For the spindle application, the adjustment method is1. To run the motor at its max. frequency2. Monitor the output voltage3. Adjust settings of Pr.11-05 (motor 1) or Pr.11-06 (motor 2) to make • the output voltage reach motor rated voltage4. The larger number it is set, the larger output voltage you will get. N-m 11-05 / 11-06 Hz Fbase

  33. Vector control-Speed Feedforward • For the spindle motor fast ACC./DEC application • The adjustment method is:1.With factory default and it can not meet the requirement of • system ACC./DEC. time • 2. Adjust 11-12, the larger number you set, the faster response you • will get. • 3. For general, no need to adjust.

  34. Position Control diagram No bias Toque bias 07-27 According to 03-00 analog multi-function According to 07-28 toque bias 10-23 Position feed forward According to multi-function to input terminals ASR low-pass filter 10-09 D Toque limit Frequency command + + + + + P P - - + 10-21 07-32~07-35 06-12 I PI adjustor Position command 10-21/10-22 zero speed PI 10-04/10-05 middle speed PI 10-06/10-07 high speed PI ÷ Current control PWM 00-17 M Encoder 10-00 10-01 Weak magnetism curve coordinates change Current feedback Actual position Integral Actual frequency

  35. Tuning-Position 10-23 10-19 D Position selection Frequency command Position command + According to multi-function Input + + P I/O serial position - PG card Pulse command 10-21 Actual position • 10-19 internal position (Home) • Multi-input uses external terminals to set 34 multi-step position function enable (multi-point position) • Serial, uses external terminals to set 41 serial position clock and 42 serial position (multi-point position) All above need to use external terminals to set 35 position control • PG reference input, use 00-20 = 5, 10-15 PG ref input Enable External terminals set 37 pulse position command input enable (position following)

  36. Torque Control diagram No bias Toque bias 07-27 According to 03-00 analog multi-function According to 07-28 toque bias Toque limit + According to multi-function to input terminals + The source of toque command can through 07-21 to select KP/communication/analog Toque command filter time 07-23 Toque limit 06-12 speed/toque Mode selection + + P + - ASR low-pass filter 10-09 Toque limit 07-32~07-35 I PI adjustor 10-21/10-22 zero speedPI 10-04/10-05 middle speedPI 10-06/10-07 high speedPI ÷ Current control PWM 00-17 M Speed limit command is selected by 07-24 , 00-20 or 07-25/07-26 Encoder 10-00 10-01 Weak magnetism curve Current feedback coordinates change Actual frequency

  37. 06-12 current limit 06-12 current limit Quadrant 2 Quadrant 1 Quadrant 3 Quadrant 4 06-12 current limit 06-12 current limit Torque Limit of FOC Positive torque Reverse generator mode Forward motor mode The minimum of the comparison result of the three layers will be torque limit Analog terminal 03-00~02 d7: positive torque limit d9: regenerative torque limit d10: positive/negative torque limit Analog terminal 03-00~02 d7: positive torque limit d10: positive/negative torque limit Forward motor torque Limit 07-32 Reverse regenerative torque Limit 07-35 speed speed Forward Reverse Reverse motor torque Limit 07-34 Forward regenerative torque Limit 07-33 Analog terminal 03-00~02 d8: negative torque limit d9: regenerative torque limit d10: positive/negative torque limit Analog terminal 03-00~02 d8: negative torque limit d9: regenerative torque limit d10: positive/negative torque limit Reverse motor mode Forward generator mode Negative torque

  38. Torque Control-Speed Limit Method Torque Toque Torque frequency/speed frequency/speed frequency/speed Reverse 07-26 Forward 07-25 Reverse00-20 Forward 07-25 Reverse07-26 Reverse00-20 Method 2 07-24=1 Speed limit is from Pr.00-20 (Source of the frequency command ) Method 1 07-24=0 Speed limit is from Pr.07-25,Pr.07-26 When 07-24=1, Speed limit is positive, then negative speed limit is determined by 07-26 When 07-24=1, Speed limit is negative, then positive speed limit is determined by 07-25

  39. Speed/Torque Control Switch Speed Command Speed Limit RUN STOP STOP Run/Stop Multi-function Input Default: d26 Torque/Speed Mode Switch OFF OFF ON ON (Ramp to Stop) Speed Control Torque Control Speed Control Torque Control Control Mode Speed Control 03-00~03=d1 AVI/AUI/ACI: Fcmd Speed Command Speed Limit 03-00~03=d2 AVI/AUI/ACI: Tcmd Torque Limit Torque Command Torque Limit Torque Command Speed/Torque Control Timing Chart 00-10 =d03/d04

  40. Motor Y-△ Switch Function (Wiring) Y-△ connection switch: can be used for wide range motor Y connection for low speed: higher torque can be used for rigid tapping △ connection for high speed: higher speed can be used for high-speed drilling U V △connection is completed 02-01~06=d30 W MI1 U V W △connection control 02-11~14=d32 Y-connection is completed 02-01~06=d29 IM MI2 RA Y connection control 02-11~14=d31 MRA X Y Z Wiring diagram of Y-△ connection switch function

  41. Motor Y-△ Switch Timing Chart If switch F setting is 60Hz, then real switch F is 62Hz at acceleration Real switch F is 58Hz at Deceleration Band is 2Hz 05-11 Y-△ Switch frequency 1. Here motor is in free run status, VFD stops outputting 2. Motor speed will decreases according to load inertia Motor speed/frequency Switch waiting time is 05-30 min.=0.2sec ON ON Y-connection control signal output 02-11~14=d31 Y-connection confirmation input ON ON 02-11~14=d29 △connection Control signal output 02-11~14=d32 Mechanical spring time ON △ connection confirmation input 02-11~14=d30 ON

  42. Brake Control Function Mechanical brake Control function can work together with zero speed holding or DC brake to get the purpose of load would not slide or pause when starting up. So it can be widely used in the field of elevator and crane. 07-03 DC braking time during stop 07-02 DC braking time during start DC brake DC brake Motor speed/frequency RUN STOP RUN/STOP 02-31 brake release delay time Brake delay release output 02-11~02-14 =d12 Mechanical brake release braked braked Mechanical brake

  43. DEB Function (Deceleration Energies Regeneration) The DEB (Deceleration Energy Backup) function is the AC motor drive decelerates to stop after momentary power loss. When the momentary power loss occurs, this function can be used for the motor to decelerate to 0 speed with deceleration stop method. When the power is on again, motor will run again after DEB return time. ( Can be applied to high speed spindle motor) Status 1: Insufficient power supply due to momentary power-loss/ unstable power (due to low voltage)/ sudden heavy-load DC BUS It doesn't need multi-function terminals DEB return time counting level (LV+30V+58V) Soft-start relay ON level (LV+30V) LV level Soft-start Relay DEB function is activated Output frequency Pr. 07-13 DEB DEC. Time When Pr. 07-14 is set to 0, the AC motor drive will be stopped. Drive will not ACE. To the frequency before DEB even the power has return 07-14 DEB return time

  44. DEB Function (Sequel) Status 2: unexpected power off, such as momentary power loss DC BUS voltage DEB return counting time level (LV+30V+58V) Soft-start relay ON level (LV+30V) LV level Soft start relay DEB function is activated Output frequency DEB DEC. time 07-13 07-14 DEB return time Status3:Some brand can enable DEB function via external terminal. For VFD-VE series, the DEB function can be used by combine deceleration time and EF function. For example, in textile machinery, you will hope that all the machines can be decelerated to stop to prevent broken stitching when power loss. In this case, the system controller will send a signal to the drive, thus, it can be done via combine DEB and EF function.

  45. Max. frequency for resolution switch of analog simulation value • This function is used to enhance the unstable speed/position due to analog resolution no enough. • It needs to use with external input terminals (Pr 02-11~Pr.02-14 set 43). • Set Pr. 10-25 as analog input resolution switch frequency AUI +10V AUI 0V Max. output frequency Pr.01-00 AUI -10V Resolution switch frequency Pr. 10-25 Output frequency Max, frequency switch waiting time 0Hz Resolution switch 02-11~02-14 =d43 Max, frequency switch waiting time FORWARD REVERSE

  46. Market Application 1 • Spindle motor (0.75kW~11kW) • Main applying function:0~3600Hz Spindle motor High speed curving machine PCB drilling machine

  47. Market Application 2 • Elevator (7.5kW~22kW) (90m/min), crane • Main applying function: FOCPG control, auto DC brake and mechanical brake control

  48. Market Application 3 • Drilling, lathe, milling and curving Integrated CNC machine, tools box • Main applying function: home position, multi-step position, pulse command position , electronic gear ratio, mechanical gear ratio, Y-△ start-up switch and speed search

  49. Market Application 4 • Printing machine • Main applying function : toque control (TQRPG) Surface and intaglio printing machine, flexible printing machine

  50. Application Example 1

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