P3: Basic PLC Program for SINUMERIK 840D sl
13.13 Block descriptions
Basic Functions
1064
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
The input signal is evaluated in FC 26 with the help of the edge trigger flag. The active coordinate system is
shown in the following output signal:
• AB n + 0, Bit 0 (MCS/WCKS) with 0 = MCS, 1 = WCS
In case of active MCS the traversing key signals of the axes 1 - 6 are transferred in the axis-specific interfaces
(DB31, ... .DBX4.6 and DBX4.7 (traversing key +/-)) of the axes specified in the machine axis tables (DB10.DBB8
to DBB13 or DBB32 to DBB37).
In case of active WCS it is assumed that the axes 1 - 3 of the machine axis table are geometric axes. For this
reason the traversing key signals:
• of the axes 1 - 3 (EB n + 2 / 3, Bit 0 - Bit 2) are transferred in the interface of the geometric axes in
DB21, ... .DBB 12 + (n * 4), with n = 0, 1, 2), Bit 6 and Bit 7 (traversing keys +/-) of the channel specified with
the parameter "ChanNo" .
The assignment of the traversing key signals of the axes 1, 2 and 3 to the geometric axes 1, 2 and 3 of the
channel is permanent and may not be changed.
• of the axes 4 - 6 (EB n + 2 / 3, Bit 3 - Bit 5) are transferred in the axis-specific interface (DB31, ... .DBX4.6 and
DBX4.7 (traversing keys +/-)) of the axes 4 - 6 entered in the machine axis table (DB10.DBB11 to DBB13 or
DBB35 to DBB37).
No traversing of machine axes in WCS
In case of active WCS (AB n + 0, Bit 0 = 1) the traversing of the machine axes can be locked. For this, the
following output signals are to be set in the PLC user program:
• AB n + 3, Bit 7 = 1 (For WCS: no machine axes)
Requirement to the FC 26, not to transfer any traversing key signals for the machine axes. The traversing key
signals for the axes 1 - 3 of the machine axis table are transferred to the geometric axes 1 - 3 of the specified
channel. The traversing key signals for the axes 4 - 6 of the machine axis table are not transferred.
• AB n + 2, Bit 6 (axes 7 - n selected)
Requirement at the FC 26 not to transfer any traversing key signals, since the axes 1 - 6 of the machine axis
table are switched over. The axes 1 - 3 are thus not geometric axes, but instead also machine axes.
Feed override
The value of the HT8 override switch is transferred as feed override in the chanel-specific interface
DB 21, ... .DBB4 (feedrate override) of the programmed channel (parameter: "ChanNo") and in the axis-specific
interfaces DB31, ... .DBB0 (feedrate override) of the axes programmed in the table DB10.DBB8 to DBB13
(machine axis number).
Rapid traverse override
Is for the programmed channel (parameter: "ChanNo") the signal DB21, ... .DBX25.3 = 1 (feedrate override for
rapid traverse) set, the value of the HT8 override switch is set as rapid traverse override in this channel-specific.
Interface in DB 21, ... .DBB5 (rapid traverse override) and in addition the signal DB21, ... .DBX6.6 = 1 (rapid
traverse override active) is set.
Содержание SINUMERIK 828D Turning
Страница 34: ...Basic Functions 34 Function Manual 09 2011 6FC5397 0BP40 2BA0 ...
Страница 146: ...A3 Axis Monitoring Protection Zones 2 6 Data lists Basic Functions 146 Function Manual 09 2011 6FC5397 0BP40 2BA0 ...
Страница 328: ...F1 Travel to fixed stop 6 5 Data lists Basic Functions 328 Function Manual 09 2011 6FC5397 0BP40 2BA0 ...
Страница 816: ...K2 Axis Types Coordinate Systems Frames 10 9 Data lists Basic Functions 816 Function Manual 09 2011 6FC5397 0BP40 2BA0 ...
Страница 1198: ...P4 PLC for SINUMERIK 828D 14 6 Function interface Basic Functions 1198 Function Manual 09 2011 6FC5397 0BP40 2BA0 ...
Страница 1752: ...Appendix 20 2 Overview Basic Functions 1752 Function Manual 09 2011 6FC5397 0BP40 2BA0 ...
Страница 1774: ...Glossary Basic Functions 1774 Function Manual 09 2011 6FC5397 0BP40 2BA0 ...