Signals To Axis/Spindle (Db31 - Siemens SINUMERIK 840D sl Function Manual

Z1: NC/PLC interface signals
19.1 Various interface signals and functions (A2)
DB21, ...
DBX36.7 NCK alarm with processing stop present
Edge evaluation: No
Signal state 1 or edge At least one NCK alarm - which is causing a processing stop of the part program running in this
change 0 → 1 channel - is active.
Signal state 0 or edge There is no alarm active in this channel that is causing a processing stop.
change 1 → 0
Application exam‐ With this alarm a program interruption because of an NCK alarm can be recognized immediately by
ple(s) the PLC user program and the necessary steps introduced.
Corresponding to ... DB21, ... DBX36.6 (channel-specific NCK alarm pending)
Additional references Diagnostics guide
19.1.8

Signals to axis/spindle (DB31, ...)

DB31, ...
DBX1.0
Drive test travel enable
Edge evaluation: No
Signal state 1 Traversing motions of the axis are enabled for the drive test.
Feedback signal of the safety handshake at the start of the NC function generator.
The NC has requested the traversing enable for the axis at the start of the function generator with
the following interface signal:
DB31, ... DBX61.0 = 1 (drive test travel request)
The PLC user program sets the current interface signal as feedback signal to the NC that the axis
can be traversed:
DB31, ... DBX1.0 = 1 (drive test travel enable)
Only the PLC can decide on the traversing enable of an axis.
Signal state 0 Traversing motions of the axis are disabled for the drive test.
Additional references CNC Commissioning Manual: NCK, PLC, Drive
1566
Signal(s) updated: Cyclically
Signal(s) updated: Cyclically
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions