Z1: NC/PLC interface signals
19.2 Axis monitoring, protection zones (A3)
Basic Functions
1654
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
19.2.3
Signals to axis/spindle (DB31, ...)
DB21, ...
DBX276.0 –
DBX277.1
Machinerelated protection zone 1 (...10) violated
Edge evaluation: no
Signal(s) updated: cyclic
Signal state 1 or
edge change
0 → 1
The activated, machinerelated protection zone 1 ( ...10) is violated in the current block or in the
current JOG movement.
The pre-activated, machinerelated protection zone 1 ( ...10) would be violated in the current block if
it would be activated by the PLC.
Signal state 0
or edge change
1 → 0
The activated, machinerelated protection zone 1 (...10) is not violated in the current block.
The pre-activated, machinerelated protection zone 1 (...10) would not be violated in the current
block if it would be activated by the PLC.
Application
example(s)
Before parts are moved into the working zone - this IS can be used to check as to whether the tool or
workpiece is located in the machinerelated protection zone of the part to be moved in.
DB21, ...
DBX278.0 -
DBX279.1
Channelspecific protection zone 1 (...10) violated
Edge evaluation: no
Signal(s) updated: cyclic
Signal state 1 or
edge change
0 → 1
The activated, channelspecific protection zone 1 ( ...10) is violated in the current block.
The pre-activated, channelspecific protection zone 1 ( ...10) would be violated in the current block if
it would be activated by the PLC.
Signal state 0 or
edge change
1 → 0
The activated, channelspecific protection zone 1 ( ...10) is not violated in the current block.
The pre-activated, channelspecific protection zone 1 (...10) would not be violated in the current
block if it would be activated by the PLC.
Application
example(s)
Before parts are moved into the working zone - this IS can be used to check whether the tool or
workpiece is located in the channelspecific protection zone of the part to be moved-in.
DB31, ...
DBX2.3
Clamping in progress
Edge evaluation: no
Signal(s) updated: cyclic
Signal state 1 or
edge change
0 → 1
Clamping in progress.
The clamping monitoring function is activated.
Signal state 0 or
edge change
1 → 0
Clamping completed.
The clamping monitoring function is replaced by the standstill (zero speed) monitoring.
Corresponding to .... MD36050 $MA_CLAMP_POS_TOL (Clamping tolerance)
DB31, ...
DBX3.6
Velocity/spindle speed limitation
Edge evaluation: no
Signal(s) updated: cyclic
Signal state 1 or
edge change
0 → 1
The NCK limits the velocity/spindle speed to the limit value set in the machine data:
MD35160 $MA_SPIND_EXTERN_VELO_LIMIT