Automatic Operation (Synchronous Control)9-49.2 Settings for Master and Slave Axes9.2.1 Selection of Master Axis and SettingsThe master axis serves as a reference for synchronization control. Start and stop requests forvarious operations are made to the master axis under synchronous control. It is possible toselect one of the following master axes. Types of master axisMaster axistype DescriptionReal axis Use one of them if the master axis needs to be an object of control as well.If a real axis is used as the master axis, the rest of the real axes can be used as slave axes.Virtual axisIt is a virtual axis controlled within FP7 MC Unit.The virtual axis can be used only as the master axis.Real axes can be used effectively by using the virtual axis. Types of master axis and restrictionsOperation modeUsable axisRemarksRealaxisVirtualaxisHome return ○ △ Virtual axes are available only for "Data set"method".JOG operation ○ ○PositioningSingle axis ○ ○Interpolation ○ ○Available in any of the following combinations.Real axis + Real axisVirtual axis + Real axisVirtual axis + Virtual axisStopfunctionSystem stopEmergency stopDeceleration stop○ ○Limit stop ○ △ For virtual axes, only the stop by softwrae limit isavailable.Error stop ○ ○KEY POINTS• While the unit is in synchronous control, slave axes set to use the masteraxis operate only in synchronization with the master axis, i.e., the slaveaxes cannot operate independently.
