PowerFlex 750-Series AC Drives User Manual

Programming and Parameters 3-127FileGroupNameNo. Description1390 755 PCAM ControlPosition Camming ControlSets bits to control the position CAM control logic.ValuesRead-WriteData TypeOptionsReservedReservedReservedReservedReservedReservedReservedCndtnl HoldUnidirectionReref Psn InOffset EnAlt SlopeAux Cam EnReverseY OutReverseX InStartDefault 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 = Disabled1 = EnabledAPPLICATIONSCammingBit 0 “Start” – Start the position CAMBit 1 “ReverseX In” – Reverse polarity of x-axis input (P1392 [PCAM Psn Select])Bit 2 “ReverseY Out” – Reverse polarity of y-axis output at beginning of next cycle (P1473 [PCAM Psn Out])Bit 3 “Aux Cam En” – Switch to the auxiliary CAM profile at beginning of next cycleBit 4 “Alt Slope” – Use a different slope calculationBit 5 “Offset En” – Enable input offset function (P1394 [PCAM Psn Ofst])Bit 6 “Reref Psn In” – Permit re-referencing x-axis input (P1392 PCAM Psn Select])Bit 7 “Unidirection” – Use unidirectional operationBit 8 “Cndtnl Hold” – Freeze the speed regulator's integrator if position reference changes. This bit is recommended to be set for point to point motion.1391 755 PCAM ModePosition Camming ModeThe parameter sets type of operational mode.“Off” (0) – Disable position CAM function“Single Step” (1) – At rising edge of Start (P1390 [PCAM Control]), the CAMprofile begins at point 0 and runs until the x-axis has reached the last pointdefined by the end point (P1405 [PCAM Main EndPnt] and P1439 [PCAM AuxEndPnt]) at which point it is completed. If the x-axis then backs up into CAMrange, nothing happens; the profile has already completed and won't restart untilcontrol Start (P1390 [PCAM Control]) is once again set.“Continuous” (2) – At rising edge of Start (P1390 [PCAM Control]), the CAMprofile begins at point 0 and runs to the end point (P1405 [PCAM Main EndPnt]and P1439 [PCAM Aux EndPnt]), and then repeats forever or until the control bitStart (P1390 [PCAM Control]) is cleared.“Persistent” (3) – At rising edge of Start (P1390 [PCAM Control]), the CAM profilebegins at point 0 and runs to the end point (P1405 [PCAM Main EndPnt] andP1439 [PCAM Aux EndPnt]), and remains active until the control bit Start (P1390[PCAM Control]) is cleared.1392 755 PCAM Psn SelectPosition Camming Position SelectThe parameter selects a position reference source for x-axis.1393 755 PCAM Psn StptPosition Camming Position SetpointThe parameter provides position reference for x-axis when the position referenceselect (P1392 [PCAM Psn Select]) selects this parameter.1394 755 PCAM Psn OfstPosition Camming Position OffsetThe parameter provides position offset value to x-axis position when the offsetenable control bit (P1390 [PCAM Control]) is set. The offset value causes aphase shift or position change in x-axis and a momentary change to CAM speed.1395 755 PCAM PsnOfst EpsPosition Camming Position Offset EpsThe parameter provides count of edges per second for virtual encoder function.The value makes a limit on change of x-axis position in change of position offsetinput.1396 755 PCAM Span XPosition Camming Span XThe parameter provides the number of integer counts equivalent to the span orrange of x-axis.Default:Options:Default:Options:0 = “Off”0 = “Off”1 = “Single Step”2 = “Continuous”3 = “Persistent”13931 / 159999Default: 0Min/Max: –2147483648 / 2147483647Default: 0Min/Max: –2147483648 / 2147483647Default: 2000Min/Max: 0 / 2147483647Default: 8192Min/Max: 0 / 2147483647RW 32-bitIntegerRW 32-bitIntegerRW 32-bitIntegerRW 32-bitIntegerRW 32-bitIntegerRW 32-bitIntegerPowerFlex 750-Series User Manual – Publication 750-UM001C-EN-P – September 2009