Parameter Settings For PowerFlex Drives Using Sine Wave .
Application TechniqueParameter Settings for PowerFlex Drives Using SineWave Filters, dv/dt Filters, and Adjustable VoltagePowerFlex 700, 700VC, and 750-Series AC DrivesTopicAbout This DocumentPowerFlex 700 Parameter Settings for Use With Sine Wave FiltersPowerFlex 700 Parameter Settings for Use With dv/dt FiltersPowerFlex 700VC Parameter Settings for Use With Adjustable VoltageApplication With a Sine Wave FilterPowerFlex 753/755 Parameter Settings for Use With Sine Wave FiltersPowerFlex 753/755 Parameter Settings for Use With dv/dt FiltersPowerFlex 753/755 Parameter Settings for Use With Adjustable VoltageApplicationAbout This DocumentPage12348910This information applies to PowerFlex 700, PowerFlex 700VC, and PowerFlex750-Series AC Drives.This document provides information for key parameters that can be adjustedwhen applying the Adjustable Voltage or V/Hz control methods through a Sinewave filter at the output of a Variable Frequency Drive (VFD).Setting up the drive parameters described in this document modifies the Stabilitygains, modulation mode, and prevents over reaction to the charging current intothe capacitor branch of a Sine wave filter.PFLEX-AT002A-EN-P
PowerFlex 700 ParameterSettings for Use With SineWave FiltersParameter NameP053Motor Cntl SetP056CompensationBit 0 - Reflect WaveBit 3 - Xsistor DiagBit 7 - PWM Freq LockP057Flux Up ModeP058Flux Up TimeP150Drive OL ModeP151PWM FrequencyP506Angl Stability GainP507Volt Stability GainP524Modulation ModeDefault Setting0 (Sensrls Vect)Set To2 (Custom V/Hz)1 (enabled)1 (enabled)0 (disabled)0 (manual)0.000 sec3 (both-PWM 1st)2 or 4 kHz51930 (2-phase SpV)0 (disabled)0 (disabled)1 (enabled)0 (manual)0.000 sec1 (reduce CLim)see filter instructions0101 (Space Vector only)P069P070P071P072xxxxxxxxnot too highper motorper needper needStart/Acc BoostRun BoostBreak VoltageBreak FrequencyIMPORTANTDo not autotune.Below is list of operational theory that describes why the parameter settings areused. Motor control setting (P053) needs to be V/Hz because, with the filterbetween the drive and motor, the load no longer looks like a motor to thedrive. Therefore, the drive needs to operate in a simple V/Hz mode. Reflected wave (P056, Bit 0) is turned off so that there will be no missingpulses in the output voltage waveform, and to minimize any offsets thatcould appear. Transistor diagnostics (P056, Bit 3) is turned off because the sequence ofturning transistors on and off charges the capacitors in the filter and cancause an instantaneous over-current (IOC) trip. Pulse width modulation (PWM) frequency lock (P056, Bit 7) is onbecause the filter is tuned to the carrier frequency, and if the carrierfrequency were to change, the filter would not work, so the carrier must befixed. Also, the PWM frequency needs to be set for whatever the filter istuned to: either 2 or 4 kHz. Drive OL mode (P150) is set for reduce current limit, and not the PWMfrequency, for the same reason as pulse width modulation frequency lock. Angle stability gain (P506) is set for 0 so it does not try to compensate forthe currents it sees going into the filter's capacitors. Voltage stability gain (P507) is set for 10 for the same reason as anglestability gain. Modulation mode (P524) is set for space vector only since 2-phasemodulation would degrade the filter's performance.2Rockwell Automation Publication PFLEX-AT002A-EN-P - May 2011
PowerFlex 700 ParameterSettings for Use With dv/dtFiltersParameter NameP053Motor Cntl SetP056CompensationBit 0 - Reflect WaveBit 3 - Xsistor DiagBit 7 - PWM Freq LockP057Flux Up ModeP058Flux Up TimeP150Drive OL ModeP151PWM FrequencyP506Angl Stability GainP507Volt Stability GainP524Modulation ModeDefault Setting0 (Sensrls Vect)Set ToV/hz, SVC, or FVC1 (enabled)1 (enabled)0 (disabled)0 (manual)0.000 sec3 (both-PWM 1st)2 or 4 kHz51930 (2-phase SpV)0 (disabled)0 (disabled)1 (enabled)0 (manual)0.000 sec1 (reduce CLim)see filter instructions0100 or 1P069P070P071P072xxxxxxxxnot too highper motorper needper needStart/Acc BoostRun BoostBreak VoltageBreak FrequencyIMPORTANTDo not autotune.Below is list of operational theory that describes why the parameter settings areused. Motor control setting (P053) can be V/Hz, Sensorless Vector Control(SVC), or Flux Vector Control (FVC). Reflected wave (P056, Bit 0) is turned off so that there will be no missingpulses in the output voltage waveform, and to minimize any offsets thatcould appear. Transistor diagnostics (P056, Bit 3) is turned off because the sequence ofturning transistors on and off charges the capacitors in the filter and cancause an instantaneous over-current (IOC) trip. Pulse width modulation (PWM) frequency lock (P056, Bit 7) is onbecause the filter is tuned to the carrier frequency, and if the carrierfrequency were to change, the filter would not work, so the carrier must befixed. Also, the PWM frequency needs to be set for whatever the filter istuned to: either 2 or 4 kHz. Drive OL mode (P150) is set for reduce current limit, and not the PWMfrequency, for the same reason as pulse width modulation frequency lock. Angle stability gain (P506) is set for 0 so it does not try to compensate forthe currents it sees going into the filter's capacitors. Voltage stability gain (P507) is set for 10 for the same reason as anglestability gain. Modulation mode (P524) is set for space vector only since 2-phasemodulation would degrade the filter's performance.Rockwell Automation Publication PFLEX-AT002A-EN-P - May 20113
PowerFlex 700VCParameter Settings for UseWith Adjustable VoltageApplication With a SineWave FilterParameter NameP196[Param Access Lvl]P053 (1)Motor Cntl SelP056CompensationBit 0 - Reflect WaveBit 3 - Xsistor DiagBit 7 - PWM Freq Lock (2)P057Flux Up ModeP058Flux Up TimeDefault Setting0 (Basic)0 (Sensorless Vector)xx0110111 (enabled)1 (enabled)0 (disabled)0 (manual)0.000 secSet To2 (Reserved)5 (Adj Voltage)xx0100100 (disabled)0 (disabled)1 (enabled)0 (manual)0.000 secP069 (1)P070 (1)P071 (1)P072 (1)Start/Acc BoostRun BoostBreak VoltageBreak FrequencyBased on drive ratingBased on drive ratingMotor NP Volts x 0.25Motor NP Hertz x 0.250000P150P151Drive OL ModePWM Frequency3 (both-PWM 1st)2 or 4 kHz1 (Reduce Climit)see filter instructions(typically 2 or 4 KHz)51930 (2-phase SUV)75%0101 (Space Vector)0%Hidden ParametersP506Angle Stability GainP507Volt Stability GainP524Modulation ModeP552Dead Time Comp (3)(1) Set these parameters (69, 70, 71, and 72) when using mode 5 (Adj Voltage) for P053.(2) In drives with 3.001 firmware and newer.(3) May be required to adjust setting if there are DC offset voltages at LOAD transformer input windings.IMPORTANTDo not autotune.Note: Many, but not all, adjustable voltage applications require a Sine wave filter.Below is list of operational theory that describes why the parameter settings areused. Motor control setting (P053) needs to be set in a form of V/Hz because,with the Sine wave filter between the drive and motor, the load no longerlooks like a motor to the drive.– The Adjustable Voltage feature set is used in nontraditional/non-motorapplications that require independent voltage regulator and frequencyregulator power control to the load. The drive output is still a form ofV/Hz. Reflected wave (P056, Bit 0) is turned off so that there will be no missingpulses in the output voltage waveform, and to minimize any offsets thatcould appear. Transistor diagnostics (P056, Bit 3) is turned off because the sequence ofturning transistors on and off charges the capacitors in the filter and cancause an instantaneous over-current (IOC) trip. Pulse width modulation (PWM) frequency lock (P056, Bit 7) is onbecause the filter is tuned to the carrier frequency, and if the carrierfrequency were to change, the filter would not work, so the carrier must befixed. Also, the PWM frequency needs to be set for whatever the filter istuned to: either 2 or 4 kHz.4Rockwell Automation Publication PFLEX-AT002A-EN-P - May 2011
Drive OL mode (P150) is set for reduce current limit, and not the PWMfrequency, for the same reason as pulse width modulation frequency lock. Angle stability gain (P506) is set for 0 so it does not try to compensate forthe currents it sees going into the filter's capacitors. Voltage stability gain (P507) is set for 10 for the same reason as anglestability gain. Modulation mode (P524) is set for space vector only since 2-phasemodulation would degrade the filter's performance.Note: Dead Time Comp (P552) is best set to 0% when output of the Sine wavefilter is fed into a transformer, to prevent or minimize DC Offset voltages.Note: P506, 507, 524, and 552 are only active in Sensorless Vector and CustomV/Hz modes of operation, and therefore require modification when in SensorlessVector control mode.In order for the drive’s current regulator to tolerate the charging currents of theSine wave filter branch circuit, you must modify some hidden parametersaffecting the vector algorithm and sensitivity of the current regulator. See HiddenParameters Overview on page 5 for more information.Hidden Parameters OverviewSome of the parameters necessary to configure the drive for use with a Sine wavefilter are hidden from view via the drive’s Human Interface Module (HIM).These parameters rarely need to be changed, and for most drive operations,Rockwell Automation recommends that these parameters are not changed.But for rare cases, such as for use with a Sine wave filter, it is necessary to accessand configure the hidden parameters via software tools such as DriveExecutive(see Figure 1 and Figure 2 on page 6), or DriveExplorer, communicating throughthe drive’s Device Peripheral Interface (DPI) ports or Ethernet.The hidden parameters are part of the 500 group of parameters under the firstmenu folder. See Hidden Parameters for Use With Sine Wave Filter on page 7)for the specific parameters that can be changed.IMPORTANTChange only the hidden parameters for Sine wave filters shown onpage 4 and page 7. All other hidden parameters must not be altered.1. Access the hidden parameters via the drive HIM, and set parameter196 [Param Access Lvl] to “2 - Reserved” (see Figure 1 on page 6).2. Configure the hidden parameters to optimize operation of the drive withthe Sine wave filter (see Hidden Parameters for Use With Sine Wave Filteron page 7).Rockwell Automation Publication PFLEX-AT002A-EN-P - May 20115
Figure 1 - DriveExecutive Parameter List, Parameter Access LevelFigure 2 - DriveExecutive Linear List6Rockwell Automation Publication PFLEX-AT002A-EN-P - May 2011
Hidden Parameters for Use With Sine Wave FilterDiag-Motor CntlUTILITYDiag-DACs3250 This proportional gain adjusts the output voltage at Min/Max: 0/32767very low frequency in response to the reactive, or d- Units:1axis, motor current. A larger value increases theoutput voltage change.Default: 64510 [Lo Freq Reg KpIq] The proportional gain adjusts the output voltage atvery low frequency in response to the active, or qaxis, motor current. A larger value increases theoutput voltage change.Min/Max: 0/32767Units:1Default:44 This integral gain adjusts the output voltage inMin/Max: 0/32767response to the q and d axis motor currents. A larger Units:1value increases the output voltage change.Default: 1600512 [Kp Cur Reg] This proportional gain adjusts the output voltage in Min/Max: 0/32767response to the q and d axis motor currents. A larger Units:1value increases the output voltage change.Default: 95.0%523 [Bus Utilization] Min/Max: 85.0/100.0%This value sets the drive output voltage limit as a0.1%percentage of the fundamental output voltage when Units:operating in 6 step mode. Values above 95%increase harmonic content and jeopardize controlstability. This output voltage limit is strictly a functionof input line and resulting bus voltage.Default: 0524 [PWM Type Sel] Allows selection of the active PWM type. A value of 0 Min/Max: 0/1is default, and results in a change of PWM method at Units:1approximately 2/3 of rated motor frequency. If this isunacceptable for harmonic or audible reasons, avalue of 1 disables the change.Default: 10.0%525 [Torq Adapt Speed] Selects the operating frequency/speed at which the Min/Max: 0.0/100.0%adaptive torque control regulators become active as Units:0.1%a percent of motor nameplate frequency.Default: 175549 Flux Braking % (% of normal output voltage) Gain adjustment for Flux Braking mode.550 Ki Flying StartIntegral gaing for Flying Start mode.551 Ki DC BrakeIntegral gain for DC Braking mode.552 Dead Time CompVoltage compensation for off time between PWMswitching events.Rockwell Automation Publication PFLEX-AT002A-EN-P - May 2011PF700H The Stability Filter coefficient is used to adjust theMin/Max: 0/32767bandwidth of a low pass filter. The smaller the value Units:1of this coefficient, the lower the bandwidth of the filter.Default: 64509 [Lo Freq Reg KpId]511 [Ki Cur Reg]Diag-Vector CntlValuesDefault:PF 700Parameter Name & Description508 [Stability Filter]PF 70No.GroupFileATTENTION: To guard against unstable or unpredictable operation,the following parameters must only be changed by qualified servicepersonnel.Min/Max: 100/250Units:%Default: 150 Min/Max: 20/5000Units:Default: 25 Min/Max: 0/500Units:Default:75 Min/Max: 50/100Units:%7
PowerFlex 753/755Parameter Settings for UseWith Sine Wave FiltersParameter NameP035Motor Cntl ModeP038PWM FrequencyP040Mtr Options CfgBit 5 - Reflect WaveBit 8 - AsyncPwmLockBit 9 - PWM Freq LockBit 11 - Elec Stab(Angl Stability Gain Off)(Volt Stability Gain Off)Bit 12 - Xsistor DiagDefault Setting0 (Sensrls Vect)2 or 4 kHzSet To2 (Custom V/Hz)see filter instructions1 (enabled)0 (disabled)0 (disabled)1 (enabled)0 (disabled)1 (enabled)1 (enabled)0 (disabled)1 (enabled)0 (disabled)P043P044Flux Up ModeFlux Up Time1 (automatic)frame-dependent0 (manual)0.000 secP420Drive OL Mode3 (both-PWM 1st)1 (reduce CLim)IMPORTANTDo not autotune.Below is list of operational theory that describes why the parameter settings areused. Motor control mode (P035) needs to be V/Hz because, with the filterbetween the drive and motor, the load no longer looks like a motor to thedrive. Therefore, the drive needs to operate in a simple V/Hz mode. Reflected wave (P040, Bit 5) is turned off so that there will be no missingpulses in the output voltage waveform, and to minimize any offsets thatcould appear. AsyncPwmLock (P040, Bit 8) is on because the filter is tuned to the carrierfrequency, and if the carrier frequency were to change, the filter would notwork, so the carrier must be fixed. Also, the pulse width modulation(PWM) frequency needs to be set for whatever the filter is tuned to:either 2 or 4 kHz. Elec Stab (P040, Bit 11): This bit affects Angle stability and Voltagestability.– Angle stability gain and Voltage stability gain are set for 0 so they donot try to compensate for the currents they see going into the filter'scapacitors. Transistor diagnostics (P040, Bit 12) is turned off because the sequence ofturning transistors on and off charges the capacitors in the filter and cancause an instantaneous over-current (IOC) trip. Drive OL mode (P420) is set for reduce current limit, and not the PWMfrequency, for the same reason as AsyncPwmLock.Note: Modulation mode is left at default “space vector,” since 2-phasemodulation would degrade the filter's performance (P040, Bit 7).8Rockwell Automation Publication PFLEX-AT002A-EN-P - May 2011
PowerFlex 753/755Parameter Settings for UseWith dv/dt FiltersParameter NameP035Motor Cntl ModeP038PWM FrequencyP040Mtr Options CfgBit 5 - Reflect WaveBit 8 - AsyncPwmLockBit 9 - PWM Freq LockBit 11 - Elec Stab(Angl Stability Gain Off)(Volt Stability Gain Off)Bit 12 - Xsistor DiagDefault Setting0 (Sensrls Vect)2 or 4 kHzSet ToV/hz, SVC, or FVCsee filter instructions1 (enabled)0 (disabled)0 (disabled)1 (enabled)0 (disabled)1 (enabled)1 (enabled)0 (disabled)1 (enabled)0 (disabled)P043P044Flux Up ModeFlux Up Time1 (automatic)frame-dependent0 (manual)0.000 secP420Drive OL Mode3 (both-PWM 1st)1 (reduce CLim)IMPORTANTDo not autotune.Below is list of operational theory that describes why the parameter settings areused. Motor control mode (P035) can be V/Hz, Sensorless Vector Control(SVC), or Flux Vector Control (FVC). Reflected wave (P040, Bit 5) is turned off so that there will be no missingpulses in the output voltage waveform, and to minimize any offsets thatcould appear. AsyncPwmLock (P040, Bit 8) is on because the filter is tuned to the carrierfrequency, and if the carrier frequency were to change, the filter would notwork, so the carrier must be fixed. Also, the pulse width modulation(PWM) frequency needs to be set for whatever the filter is tuned to:either 2 or 4 kHz. Elec Stab(P040, Bit 11): This bit affects Angle stability and Voltagestability.– Angle stability gain and Voltage stability gain are set for 0 so they donot try to compensate for the currents they see going into the filter'scapacitors. Transistor diagnostics (P040, Bit 12) is turned off because the sequence ofturning transistors on and off charges the capacitors in the filter and cancause an instantaneous over-current (IOC) trip. Drive OL mode (P420) is set for reduce current limit, and not the PWMfrequency, for the same reason as AsyncPwmLock.Note: Modulation mode is left at default “space vector,” since 2-phasemodulation would degrade the filter's performance (P040, Bit 7).Rockwell Automation Publication PFLEX-AT002A-EN-P - May 20119
PowerFlex 753/755Parameter Settings for UseWith Adjustable VoltageApplicationParameter NameP035Motor Cntl ModeP038PWM FrequencyP040Mtr Options CfgBit 5 - Reflect WaveBit 8 - AsyncPwmLockBit 9 - PWM Freq LockBit 11 - Elec Stab(Angl Stability Gain Off)(Volt Stability Gain Off)Bit 12 - Xsistor DiagDefault Setting0 (Sensrls Vect)2 or 4 kHzSet To9 (Adj Voltage)see filter instructions1 (enabled)0 (disabled)0 (disabled)1 (enabled)0 (disabled)1 (enabled)1 (enabled)0 (disabled)1 (enabled)0 (disabled)P043P044Flux Up ModeFlux Up Time1 (automatic)frame-dependent0 (manual)0.000 secP060P061P062P063Start/Acc BoostRun BoostBreak VoltageBreak dentframe-dependent0000P420Drive OL Mode3 (both-PWM 1st)1 (reduce CLim)Basic Adjustable Voltage Control ParametersP1131Adj Vltg Config1P1133P1134P1140P1141P1142P1153Adj Vltg SelectAdj Vltg Ref HighAdj Vltg AccTimeAdj Vltg DecTimeAdj Vltg Preset1Dead Time CompIMPORTANTDisabled0%0 Secs0 Secs0 VAC100%1 3-Phase0 1-PhasePreset 1100%Required SecsRequired SecsRequired VACVary from 100% to 0%Do not autotune.Below is list of operational theory that describes why the parameter settings areused. The motor control mode (P035) Adjustable Voltage mode is typically anon-motor load control function providing an independent outputvoltage with an independent output frequency. Break voltage (P062), break frequency (P063), start boost (P060), and runboost (P061) can cause DC offsets in Adjustable Voltage mode. Reflected wave (P040, Bit 5) is turned off so that there will be no missingpulses in the output voltage waveform, and to minimize any offsets thatcould appear. AsyncPwmLock (P040, Bit 8) is on because the filter is tuned to the carrierfrequency, and if the carrier frequency were to change, the filter would notwork, so the carrier must be fixed. Also, the pulse width modulation(PWM) frequency needs to be set for whatever the filter is tuned to:either 2 or 4k Hz.10Rockwell Automation Publication PFLEX-AT002A-EN-P - May 2011
Elec Stab (P040, Bit 11): This bit affects Angle stability and Voltagestability.– Angle stability gain and Voltage stability gain are set for 0 so they donot try to compensate for the currents they see going into the filter'scapacitors. Transistor diagnostics (P040, Bit 12) is turned off because the sequence ofturning transistors on and off charges the capacitors in the filter and cancause an instantaneous over-current (IOC) trip. Drive OL mode (P420) is set for reduce current limit, and not the PWMfrequency, for the same reason as AsyncPwmLock.Note: Dead Time Comp (P1153) is best set to 0% when output of the Sine wavefilter is fed into a transformer, to prevent or minimize DC Offset voltages.Note: Modulation mode is left at default “space vector,” since 2-phasemodulation would degrade the filter's performance (P040, Bit 7).Rockwell Automation Publication PFLEX-AT002A-EN-P - May 201111
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Parameter Settings for PowerFlex Drives Using Sine Wave Filters, dv/dt Filters, and Adjustable Voltage PowerFlex 700, 700VC, and 750-Series AC Drives About This Document This information applies to PowerFlex 700, PowerFlex 700VC, and PowerFlex 750-Series AC Drives. This document pro
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PowerFlex 753/755 Parameter Settings for Use with Adjustable Voltage Application with a Sine-wave Filter This section describes the required parameter settings for using a PowerFlex 753 or 755 drive in an adjustable voltage application and the operation theory behind each setting.File Size: 414KB
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