bbay

Hello! Does anyone have experience using a touch probe to capture machine position? I have a Renishaw OMP400, OMM-2, and OSI wired to a Power PMAC through the ACC65E digital I/O card. I intend for the PMAC to record position, halt motion, and move back upon probe trigger. My attempts to use "software capture" triggered moves (e.g. X50^-50) have failed, likely because it was misread as overtravel. Is there a way to use hardware/software capture without disabling overtravel protection? Might it be simpler, albeit less accurate, to implement manually through a PLC? E.g. a while loop that checks for the triggered input. The machine is a 3-axis parallel manipulator (tri-pyramid robot). My current procedure runs a plc with the following for each motor, before executing the rapid trigger move: Motor[ii].pCaptFlag = ACC65E… // Capture when probe triggers Motor[ii].CaptFlagBit = 2 // Probe bit Motor[ii].captureMode = 1; // Software capture, input triggering Motor[ii].RapidSpeedSel = 0; // Peak velocity is now Motor[x].JogSpeed Motor[ii].JogSpeed = very low // Speed at which probe will approach part

Hello! Does anyone have experience using a touch probe to capture machine position? I have a Renishaw OMP400, OMM-2, and OSI wired to a Power PMAC through the ACC65E digital I/O card. I intend for the PMAC to record position, halt motion, and move back upon probe trigger. My attempts to use "software capture" triggered moves (e.g. X50^-50) have failed, likely because it was misread as overtravel. Is there a way to use hardware/software capture without disabling overtravel protection? Might it be simpler, albeit less accurate, to implement manually through a PLC? E.g. a while loop that checks for the triggered input. The machine is a 3-axis parallel manipulator (tri-pyramid robot). My current procedure runs a plc with the following for each motor: Motor[ii].pCaptFlag = ACC65E… // Capture when probe triggers Motor[ii].CaptFlagBit = 2 // Probe bit Motor[ii].captureMode = 1; // Software capture, input triggering Motor[ii].RapidSpeedSel = 0; // Peak velocity is now Motor[x].JogSpeed Motor[ii].JogSpeed = very low // Speed at which probe will approach part and