Siemens SINUMERIK 840D Series Diagnostics Manual page 248

1 Alarms
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• Axis replacement
• Delete distance-to-go
• Measuring
- Alarm display.
Repeat the action after the end of the asynchronous subprogram.
Clear alarm with the Delete key or NC START.
Channel %1 action %2<ALNX> not possible due to active search blocks
%1 = Channel ID
%2 = Action number/action name
The NCK is currently processing either the action blocks of the search run or the
approach motion after the search run.
In this situation, the action (2nd parameter of the alarm) must be rejected.
Currently, only the integrated search run is rejected with this alarm. The integrated search
run is activated, if search run is triggered in the Stop program state. In other words: Parts
of a program have already been executed and a following program part is "skipped" with
search run in order to continue the program afterwards.
- Alarm display.
Repeat the action after the approach motion of the search run.
Clear alarm with the Delete key or NC START.
Channel %1 action %2<ALNX> delayed up to the block end
%1 = Channel ID
%2 = Action number/action name
The currently executing action (e.g. dry run on/off, change skip levels, etc.) should be
active immediately, but it can become active not earlier than at the end of the block, since
a thread is currently being machined. The action is activated with a slight delay.
Example: Dry run is started in the middle of the thread, then traversing at high speed does
not start before the next block.
- Alarm display.
Alarm can be switched off via $MN_SUPPRESS_ALARM_MASK bit 17==1.
Clear alarm with the Delete key or NC START.
Channel %1 start via START is not allowed
%1 = Channel ID
This alarm is active with "Group Serupro" only. "Group Serupro" is activated by means of
"$MC_SERUPRO_MODE BIT2" and enables the retrace support of entire channel groups
during block search.
The machine data $MC_DISABLE_PLC_START specifies which channel is generally
started from the PLC and which channel is only allowed to be started from another chan-
nel via the START part program command.
This alarm occurs if the channel was started via the START part program command and
$MC_DISABLE_PLC_START==FALSE was set.
- Alarm display.
Modify $MC_DISABLE_PLC_START of switch off "Group Serupro" (see
$MC_SERUPRO_MODE).
Clear alarm with the Delete key or NC START.
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA) – 11.02 Edition
 Siemens AG, 2002. All rights reserved
11.02