PowerFlex 750-Series AC Drives User Manual

3-28 Programming and ParametersFileGroupNo.NameDescriptionValuesRead-WriteData Type111 Trq Comp RegenTorque Compensation RegenerationMotor torque compensation applied to the torque command for regeneratingtorque. This parameter can be set manually or determined automatically duringautotune. (See P109 [Trq Comp Mode].) In manual mode, a value of -3% willdecrease the commanded torque by 3% (gain of 0.97). This is used for flux vectormotor control modes (P35 [Motor Ctrl Mode]).Units: %Default: 0.00Min/Max: –/+50.00RW RealMOTOR CONTROLVector Regulator112 Slip Adapt IqsSlip Adaption IqsLevel of per unit Iqs at which the adaptive slip frequency regulator becomesactive. Active only in motor control mode flux vector induction (P35 [Motor CtrlMode] = 3 “Induction FV”).113 SFAdapt SlewLmtSlip and Flux Adaption Slew LimitTime that the slip, flux, and torque regulators are allowed to converge before theregulators are turned on after the motor speed reaches the level set in P106 [TrqAdapt Speed].114 SFAdapt SlewRateSlip and Flux Adaption Slew RateRate that the slip and flux regulators can converge before the regulators areenabled.115 SFAdapt CnvrgLvlSlip and Flux Adaption Converge LevelSlip and flux regulator error level that indicates convergence.116 SFAdapt CnvrgLmtSlip and Flux Adaption Converge LimitDuration of convergence before the adaption regulators are enabled after theerror has decreased below the level set in P115 [SFAdapt CnvrgLvl].Default: 0.05Min/Max: 0.00 / 1.00Units: SecsDefault: 0.00Min/Max: 0.00 / 60.00Default: 0.005000Min/Max: 0.000010 / 1.000000RW RealRW RealRW RealDefault: 0.010000Min/Max: 0.000010 / 1.000000RW RealDefault: 0.500Min/Max: 0.000 / 5.000RW RealDrive Feedback & I/O FileFileGroupNo.NameDescriptionValuesRead-WriteData TypeFEEDBACK & I/OFeedback125 Pri Vel Fdbk SelPrimary Velocity Feedback SelectSelects the source of the P3 [Mtr Vel Fdbk] and P131 [Active Vel Fdbk] that willbe used when the drive is in operation without an Auto Tach Loss Switchover.Possible selections include: Port 0 – Open Loop Fdbk, Port 0 – Simulator Fdbk,and any Port that contains a feedback module (for example, Encoder).The Disabled and Open Loop Fdbk selections are functionally equivalent, withOpen Loop being the default setting. Open Loop velocity feedback is estimatedbased on P1 [Output Frequency] and P5 [Torque Cur Fdbk], adjusted using P621[Slip RPM @ FLA].Simulator Fdbk is available in the Flux Vector selections for P35 [Motor CtrlMode]. Simulator velocity feedback is calculated based on P690 [Limited Trq Ref]and P76 [Total Inertia]. This selection is useful for drive operational checkout andtest when motor movement is undesired. In simulation mode, gating of the powerinverter section of the drive is disabled.Selection of any option module port that contains an encoder module results inP3 [Mtr Vel Fdbk] based on a measured value. Data obtained from the selectedfeedback module will be used to determine motor velocity feedback.Default: 137Min/Max: 0 / 159999RW 32-bitIntegerPowerFlex 750-Series User Manual – Publication 750-UM001C-EN-P – September 2009