Siemens SINUMERIK 840Di Diagnostic Manual page 322

Overview of Alarms
NCK alarms
16948 Channel %1 dependent channel %2 still active
Parameters: %1 = Channel ID
%2 = Channel ID
Definitions: 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.
A _dependent channel_ is a channel that had indirectly been started by the currently active channel.
The currently active channel was started via PLC.
This channel m_u_s_t be terminated (i.e. reached M30) before the current channel is terminated.
This alarm occurs if the currently active channel is terminated before the dependent channel.
Reaction: Alarm display.
Remedy: Switch off "Group Serupro" (see $MC_SERUPRO_MODE) or install WAITE.
Program Clear alarm with the Delete key or NC START.
Continuation:
16949 Correspondence between marker of channel %1 and channel %2 is
invalid.
Parameters: %1 = Channel ID
%2 = Channel ID
Definitions: This channel defines a WAIT marker with other channels, which on their part have no correspondence
with this wait marker.
This channel's WAIT marker has no explicit counterpart in the other channel; i.e. the channels do not
mutually wait.
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Example
Ch 3Ch 5Ch 7
WAITM(99,3,5)
The wait markers in channels 3 and 5 mutually wait for each other and channel 7 only waits for channel
5. Therefore, channel 7 may continue when 5 and 7 have reached the wait marker, but channel 3 is
still far in front of the wait marker.
When it continues, channel 7 deletes its wait marker. When wait marker 99 is reached again, you can
no longer determine the behavior precisely.
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Reaction: Alarm display.
Remedy: In each wait marker, list all channels with which you want to synchronize, or suppress the alarm with
$MN_SUPPRESS_ALARM_MASK, bit 23.
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Sample solution A:
Ch 3Ch 5Ch 7
WAITM(99,3,5,7)
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Sample solution B:
Ch 3Ch 5Ch 7
WAITM(99,3,5)
WAITM(88,5,7)
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Sample solution C:
Ch 3Ch 5Ch 7
WAITM(88,5,7)
WAITM(99,3,5)
Program Clear alarm with the Delete key or NC START.
Continuation:
2-322
WAITM(99,3,5) WAITM(99,5,7)
WAITM(99,3,5,7) WAITM(99,3,5,7)
WAITM(99,3,5)
WAITM(88,5,7)
WAITM(88,5,7)
WAITM(99,3,5)
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
© Siemens AG, 2006. All rights reserved
11/2006