PowerFlex 750-Series AC Drives User Manual

Programming and Parameters 3-67FileGroupValuesRead-WriteData TypeNameNo. Description591 Spd Ref Sel StsSpeed Reference Select StatusOptionsSkip BandEnd Lmt SwDecel Lmt SwUnipolar RefRev DisableBipolar RefSel OverrideManualPreset AutoTrim RefTrim Pct RefMicroPsnMultRef B MultRef A MultRef B AutoRef A AutoDefault 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 00 = False1 = TrueSPEED CONTROLSpeed ReferenceDisplays the operating status of the speed referencing section of the drive. Individual bits are provided to represent the following conditions:Bit 0 “Ref A Auto” – When set, the Reference A Auto path is active.Control Logic has selected the Speed Reference source A. The exact origin of this speed reference is determined by the parameter specified in P545[Spd Ref A Sel]. This parameter should also be reported in P930 [Speed Ref Source].Bit 1 “Ref B Auto” – When set, the Reference B Auto path is active.Control Logic has selected the Speed Reference source B. The exact origin of this speed reference is determined by the value specified in P550 [SpdRef B Sel]. This parameter should also be reported in P930 [Speed Ref Source].Bit 2 “Ref A Mult” – When set, speed reference A is being modified by P549 [Spd Ref A Mult]. When clear, either the multiplier is 1 or is not affectingthe speed reference because the Ref A Auto path is inactive.Bit 3 “Ref B Mult” – When set, the speed reference B is being modified by P554 [Spd Ref B Mult]. When clear, either the multiplier is 1 or is notaffecting the speed reference because the “Ref B Auto” path is inactive.Bit 4 “MicroPsnMult” – When set, P592 [Selected Spd Ref] is being multiplied by P1112 [MicroPsnScalePct].Bit 5 “Trim Pct Ref” – When set, the speed reference is being multiplied by one plus the value of the parameter indicated in P616 [SpdTrimPrcRefSrc].Bit 6 “Trim Ref” – When set, the speed reference is being offset by the value of the parameter indicated in P617 [Spd Trim Source].Bit 7 “Preset Auto” – When set, Control Logic has selected a preset auto speed reference. The P930 [Speed Ref Source] parameter will indicate thesource of this reference.Bit 8 “Manual” –Bit 9 “Sel Override” – The Selected Speed Reference parameter has been overridden by another reference. Refer to P930 [Speed Ref Source] for thecause of the override.Bit 10 “Bipolar Ref” – When set, P308 [Direction Mode] = 1 “Bipolar.” When in bipolar mode, the sign of the speed reference value will determine thedirection of motor rotation.Bit 11 “Rev Disable” – When set, P308 [Direction Mode] = 2 “Rev Disable.” When in reverse disable mode, negative speed reference values arerejected and a zero speed value is used in their place.Bit 12 “Unipolar Ref” – When set, P308 [Direction Mode] = 0 “Unipolar.” When in unipolar mode, the sign of the speed reference value (and thereforedirection of motor rotation) is determined by P879 [Drive Logic Rslt] Bit 4 “Forward” and Bit 5 “Reverse.”Bit 13 “Decel Lmt Sw” – When set, the Torque Proving function's control logic has detected a decel limit switch active and has selected P571 [PresetSpeed 1] for the speed reference value.Bit 14 “End Lim Sw” – When set, the Torque Proving function's control logic has detected an end limit switch active and has selected zero speed forthe speed reference value.Bit 15 “Skip Band” – When set, the Skip Band function has modified P2 [Commanded SpdRef]. When clear, the Skip Band function has not changedP2 [Commanded SpdRef].592 Selected Spd RefSelected Speed ReferenceDisplays the value of the active speed reference.593 Limited Spd RefLimited Speed ReferenceDisplays the value of the speed reference after the following limits have beenapplied: P520 [Max Fwd Speed], P521 [Max Rev Speed], P522 [Min Fwd Speed]and P523 [Min Rev Speed].Units:Default:Min/Max:HzRPM0.00–/+P27 [Motor NP Hertz]–/+P28 [Motor NP RPM]Units: HzDefault: RPMMin/Max: 0.00–/+P27 [Motor NP Hertz]–/+P28 [Motor NP RPM]RORORealRealPowerFlex 750-Series User Manual – Publication 750-UM001C-EN-P – September 2009