Siemens SINUMERIK 828D Function Manual page 94

Detailed description
2.7 Actions in synchronized actions
Axis already assigned to the NC program of the channel
If the axis is already assigned to the part program of the channel
($AA_AXCHANGE_TYP[<axis>] == 0) or if this assignment is requested, e.g. axis
replacement triggered by the part program ($AA_AXCHANGE_TYP[<axis>] == 5 or
$AA_AXCHANGE_TYP[<axis>] == 7), there is no state change.
Release axis for axis replacement
If the axis is assigned to the part program at the time of release
($AA_AXCHANGE_TYP[<axis>] == 0), it is transferred to the neutral axis state
($AA_AXCHANGE_TYP[<axis>] == 3) and if required, released for axis replacement in
another channel.
This results in a reorganization procedure.
Axis to be released is already a neutral axis:
If the axis is already in the neutral axis state ($AA_AXCHANGE_TYP[<axis>] == 3) or active
as command or oscillating axis or assigned to the PLC as concurrent positioning axis
($AA_AXCHANGE_TYP[<axis>] == 1), the axis is released for an automatic axis
replacement between channels.
$AA_AXCHANGE_STAT[<axis>] is reset from 1 to 0 if there is no other reason to link the
axis to the channel. Such a link of the axis is present, for example, with:
● Active axis coupling
● Active fast retraction
● Active transformation
● JOG request
● Rotating frame with PLC, command or oscillating axis motion
Another channel already has the interpolation authorization
If another channel already has the interpolation authorization
($AA_AXCHANGE_TYP[<axis>] == 2), there is no state change. This also means that
waiting for an axis, triggered by part program ($AA_AXCHANGE_TYP[<axis>] == 5) or a
previous
cannot be aborted by a
94
request from a synchronized action ($AA_AXCHANGE_TYP[<axis>] == 6)
GET
RELEASE
from a synchronized action.
Function Manual, 07/2012, 6FC5397-5BP40-3BA0
Synchronized actions