PowerFlex 750-Series AC Drives User Manual

3-120 Programming and ParametersFileGroupNameNo. Description1212 755 Units TraveledUnits TraveledIndicates total number of units traveled. The relationship between the feedbackedge counts and the position units is determined by the P1215 [Counts Per Unit].Actual motor position is converted from the edge counts to this value using theP1215 [Counts Per Unit].1213 755 Profile CommandProfile CommandSets bits to configure the speed profile/position indexer control logic.ValuesUnits: CntsDefault: Read OnlyMin/Max: –/+ 2200000000.0Read-WriteData TypeRO RealOptionsReservedReservedReservedProf Run AlmHomNotSetAlmRestart StepVel OverrideHold StepReservedReservedReservedStrStepSel4StrStepSel3StrStepSel2StrStepSel1StrStepSel0Default 0 0 0 1 1 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 = Disabled1 = EnabledAPPLICATIONSProfilingBit 0 “StrStepSel0” – Bit 0 through Bit 4 set initial or starting step in the move table in binary format. A starting step value of zero results in no motionwhen the drive is enabled.Bit 1 “StrStepSel1”Bit 2 “StrStepSel2”Bit 3 “StrStepSel3”Bit 4 “StrStepSel4”Bit 8 “Hold Step” – When the drive is enabled with this bit is set, the drive starts and runs at zero velocity. The starting step is not executed until the‘Hold Step’ bit is removed.For non-blended moves, the drive will hold zero speed and/or current position. This does not stop the drive. For blended moves, the drive will continueto run at the step velocity. If the Hold Step bit is removed, then the conditions required to complete the step can be evaluated.Bit 9 “Vel Override” – can be used to rescale all move velocities by the velocity override P1216 [ProfVel Override]. When this bit is off, a scale factor of1 is used.Bit 10 “Restart Step” – can be used to disable a currently executing profile. This bit forces the current step to reset to the starting step value.Bit 11 “HomNotSetAlm” – sets condition to indicate the “home position not set” alarm. The absolute position type will work without home position if thebit is off. Set on as default.Bit 12 “Prof Run Alm” – sets condition to indicate the profile running alarm during the drive is running. Set on as default.1215 755 Counts Per UnitCounts Per UnitSets number of position feedback counts per unit of machine travel (ex, 1024encoder edge counts per inch). This parameter is used to scale position targetsfrom their entered values of units to internal units of encoder edge counts. Thisparameter is also used to convert actual motor position from encoder edgecounts back into the desired units for display in P1212 [Units Traveled].1216 755 ProfVel OverrideProfile Velocity OverrideSets multiplier for all move velocities when the velocity override function isselected P1213 [Profile Command] Bit 9 “Vel Override.” This parameter istypically set to a value less than 1. When the velocity override bit P1213 [ProfileCommand] Bit 9 “Vel Override” is off, a scale factor of 1 is used.Default: 1Min/Max: 1 / 2200000000Units: %Default: 100.00Min/Max: 10.00 / 150.00RW 32-bitIntegerRW RealPowerFlex 750-Series User Manual – Publication 750-UM001C-EN-P – September 2009