Siemens SINUMERIK 840Di Diagnostic Manual page 389

11/2006
21670 Channel %1 block %2 illegal change of tool direction with $AA_TOFF
active
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: If an offset has been activated in tool direction by means of $AA_TOFF[i], no block is allowed to be
activated in which the offset axis assignment i is modified (plane change, tool change cutting tool <=>
turning tool, transformation change, TRAFOOF, TCARR=0, geometry axis change)
Reaction: Correction block is reorganized.
Local alarm reaction.
Interface signals are set.
Alarm display.
NC Stop on alarm at block end.
Remedy: - Modify part program
- Program TOFFOF()
Program Clear alarm with NC START or RESET key and continue the program.
Continuation:
21700 Channel %1 block %3 axis %2 touch probe already deflected, edge
polarity not possible
Parameters: %1 = Channel number
%2 = Axis name, spindle number
%3 = Block number
Definitions: The probe programmed under the keyword MEAS or MEAW is already deflected and has switched.
For a further measuring operation, the probe signal must first be canceled (quiescent state of the
probe).
The axis display is of no significance at the present time but an axis-specific evaluation has been
planned for later stages of development.
Reaction: Local alarm reaction.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Verify the start position of the measuring operation or check the probe signals in the PLC interface
(DB10.DBB107). Are the cables and connectors in good order?
Program Clear alarm with the RESET key. Restart part program
Continuation:
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
Overview of Alarms
NCK alarms
2-389