878.3 Parameter SettingsIf a parameter has been changed, always restart the controller using a software reset command or byreconnecting the power.8.3.1 Parameters Relating to the Actuator Stroke Rangez Soft limitSet the soft limit in the positive direction in parameter No. 3, and that in the negative direction in parameterNo. 4.The factory setting for the soft limits conforms to the effective actuator length. Change the settings, asnecessary, to prevent crash with an obstacle or when the actuator must be stroked slightly beyond itseffective length.A wrong soft limit setting will cause the actuator to crash into the mechanical end, so exercise due caution.The minimum setting unit is “0.01 [mm].”(Note) To change a soft limit, set a value corresponding to 0.3 mm outside of the effective range.Example) Set the effective range to between 0 mm and 80 mmParameter No. 3 (positive side) 80.3Parameter No. 4 (negative side) –0.3z Zone boundarySet the zone in which a zone output signal (ZONE1 or ZONE2) will turn ON.(Note) ZONE2 is enabled only when “2 zone output signals” is selected as the PIO pattern.The zone signal turns ON only when the current coordinate position is inside the negative (-) boundaryand positive (+) boundary settings.The positive and negative boundaries for the ZONE1 signal are set in parameter No. 1 and No. 2,respectively.The positive and negative boundaries for the ZONE2 signal are set in parameter No. 23 and No. 24,respectively.The minimum setting unit is “0.01 [mm].”Example) Use ZONE1 as an intermediate limit switch inside 100 and 200 mm, and use ZONE2 as asimple ruler inside 270 and 275 mm, with an actuator having a 300-mm strokeParameter No. 1 (positive side) 200, parameter No. 2 (negative side) 100Parameter No. 23 (positive side) 275, parameter No. 24 (negative side) 2700(Home)ZONE1 turns ON ZONE2 turns ON100 200 270 275 300 mmSoft limits set in the controllerApprox.0.3 mmEffective rangeAllowable jogging/inching range after home return8 0 Approx. 0.1 mmApprox. 0.1 mm 0Approx.0.3 mm
