Siemens Sinumerik 840D sl Diagnostic Manual page 345

03/2009
Definitions: When deselecting the position offset ($AA_OFF) via the part program command CORROF (<axis>,
"AA_OFF") an active synchronized action is detected that immediately sets $AA_OFF for the axis
(DO_$AA_OFF [<axis>] =<value>). Deselection is executed and $AA_OFF not set again.
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 Con- Clear alarm with NC START or RESET key and continue the program.
tinuation:
21665 [Channel %1: ] $AA_TOFF cleared
Parameters: %1 = Channel number
Definitions: If the tool position is changed with RESET and $AA_TOFF is active during RESET, the position offset
($AA_TOFF) is cleared.
Reaction: Correction block is reorganized.
Local alarm reaction.
Interface signals are set.
Alarm display.
NC Stop on alarm at block end.
Remedy: Modify the RESET setting in $AA_TOFF_MODE.
Program Con- Clear alarm with NC START or RESET key and continue the program.
tinuation:
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 exchange)
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 Con- Clear alarm with NC START or RESET key and continue the program.
tinuation:
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 starting position of the measuring operation or check the probe signals in the PLC interface
DB10 DBX107.0 / 107.1 (Probe actuated key 1/key 2). Are the cables and connectors in good order?
© Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Overview of Alarms
NCK alarms
2-345