Siemens SINUMERIK 840D sl Series Diagnostics Manual page 290

Overview of Alarms
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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Reactions: - 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(88.50.7)
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Sample solution C:
Ch 3Ch 5Ch 7
WAITM(88.50.7)
WAITM(99,3,5)
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
16950
Channel %1 search run with hold block
Parameters: %1 = Channel ID
Definitions: Informational alarm.
The search run was not performed on the interruption block,
instead, it touches down shortly before that. This so-called "hold block"
is generated by the part program command IPTRLOCK, or implicitly defined by
$MC_AUTO_IPTR_LOCK. This is to prevent
you from performing a search run in critical program areas
(e.g. gear hobbing).
The alarm also displays that, instead of searching for the
block that actually was interrupted before, another block is being searched for.
This behavior is desired and the alarm serves only informational purposes.
Reactions: - Alarm display.
Remedy: $MN_SUPPRESS_ALARM_MASK $MC_AUTO_IPTR_LOCK and language command
IPTRLOCK
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
2-290
WAITM(99,3,5) WAITM(99,5,7)
WAITM(99,3,5,7)
WAITM(99,3,5)
WAITM(88.50.7)
WAITM(88.50.7)
WAITM(99,3,5)
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
WAITM(99,3,5,7)
© Siemens AG, 2005. All rights reserved
08/2005