Siemens SINUMERIK 840Di Diagnostic Manual page 76

Overview of Alarms
NCK alarms
6424 Channel %1 tool move not possible. Tool %2 not available/not usable.
Parameters: %1 = Channel ID
%2 = String (identifier)
Definitions: The desired tool motion command - triggered from the MMC or PLC - is not possible. The status of
the named tool does not allow movement of the tool. The named tool is not defined or not permitted
for the command.
Reaction: NC Start disable in this channel.
Interface signals are set.
Alarm display.
Remedy: - Check whether the tool status 'is being changed' ('H20') is set. If yes, then the appropriate tool
change command must first be completed by the PLC. Then the tool should be able to be moved.
- Check whether the tool data are correctly defined. Has the correct T number been specified?
- Check whether the move command has been correctly parameterized. Is the desired tool at the
source location? Is the target location suitable for taking the tool?
- Check whether the tool has already been loaded (if the alarm occurs while loading the tool).
Program Clear alarm with the Delete key or NC START.
Continuation:
6425 Channel %1 tool %2 cannot be placed in magazine %3 on location %4.
Invalid definition of magazine!
Parameters: %1 = Channel ID
%2 = String (identifier)
%3 = Magazine number
%4 = Magazine location number
Definitions: The desired tool motion command - triggered from the MMC or PLC - is not possible. A movement
request was issued to put the tool in a location which does not satisfy the prerequisites for filling.
The following causes for the error are possible:
- Location is blocked or not free!
- Tool type does not match the location type!
- Tool possibly too large, adjacent locations are not free!
- If a tool is to be loaded or unloaded, the load/unload position must be of 'load location' type.
- If a tool is to be loaded or unloaded, is the magazine in question linked to the load/unload location?
See $TC_MDP1, $TC_MDP2.
Reaction: NC Start disable in this channel.
Interface signals are set.
Alarm display.
Remedy: - Check whether the magazine data have been defined correctly.
- Check whether there is still room in the magazine to add another tool; there may not be due to
operating procedures.
- Check whether a location type hierarchy is defined and whether it, for example, does not allow
insertion of a type 'A' tool in a free location with type 'B'.
- Check whether the magazine in question is linked to the load/unload location or whether a distance
has been defined.
- Check whether the load/unload position is of 'load location' type.
See also $TC_MPP1.
Program Clear alarm with the Delete key or NC START.
Continuation:
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© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006