Axis Replacement Options - Siemens SINUMERIK 840D sl Function Manual

Mode Groups, Channels, Axis Replacement (K5)
6.4 Axis/spindle replacement
6.4.3

Axis replacement options

One or more axes/spindles can be activated for replacement between channels by the parts
program or by motion-synchronous actions. An axis/spindle replacement can also be
requested and released from the PLC via the VDI interface. The axis/spindle must have
been released in the current channel and will be taken over by the other channel with the
GET command and released with the RELEASE command.
If the specified conditions are met, an axis/spindle replacement is initiated by:
● Programming in parts program GET/GETD
● Automatic by programming of the axis name, if the required conditions have been met by
● Without preprocessing stop and existing synchronization between preprocessing and
● Through PLC via the VDI interface to the NCK.
When taking over a PLC-controlled axis, the channel behavior triggered by the NC program
can be de-coupled via an interface signal. This allows individual PLC axes to be interpolated
independently from the NC program.
References:
/FB2/ Function Manual, Extended Functions; Positioning Axes (P2)
Chapter "Independent Single Axis Procedures".
Axis replacement extensions
● Setting axis replacement behavior as variable via machine data MD10722
● Axis replacement with an axis container rotation with implicit GET/GETD
● Axis replacement without pre-processing stop of axes not involved in the contour.
● Geometry axis with rotated frame and axis replacement in JOG mode via machine data
● Axis replacement via synchronized actions GET(axis), RELEASE(axis), AXTOCHAN,
460
Take over an axis or a spindle from another channel with GET or get it from another
channel with GETD. With GETD a corresponding release is not required.
MD30552 $MA_AUTO_GET_TYPE > 0.
main run.
$MN_AXCHANGE_MASK.
MD32074 $MA_FRAME_OR_CORRPOS_NOTALLOWED can be activated.
$AA_AXCHANGE_TYP(axis).
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Extended Functions