Siemens SINUMERIK 802D sl Function Manual page 106

Gantry axes (G1)
6.6 Miscellaneous points regarding gantry axes
PRESET
The PRESET function can only be applied to the leading axis. All axes in the gantry grouping
are reevaluated internally in the control when PRESET is activated. The gantry axis then
lose their reference and synchronization:
V390x 5005.5 = 0 (gantry grouping is synchronized)
Default for RESET
In an active gantry grouping, the following MD parameterization is ignored for the
synchronized axes:
MD30450 IS_CONCURRENT_POS_AX=1
(reset default: neutral axis/channel axis)
The state of the leading axis is assumed. The user is informed about the inappropriate
configuration with display alarm 4300.
Position display
The position actual value display shows the actual values of both the leading axis and the
synchronized axes. The same applies to the service display values in the "System" operating
area.
Software limit switch
The SW limit switch monitor is processed for the leading axis only. If the leading axis crosses
the limit switch, all axes in the gantry grouping are braked to a standstill.
106
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0