Siemens SINUMERIK 840Di Diagnostic Manual page 72

Overview of Alarms
NCK alarms
6406 Channel %1 PLC acknowledge for command %2 is missing
Parameters: %1 = Channel ID
%2 = Command no.
Definitions: There is still no acknowledgement from the PLC for the tool change. The NCK cannot continue
processing until it receives this acknowledgement for the specified command number. Possible
command number values are described for alarm 6405.
Reaction: NC Start disable in this channel.
Interface signals are set.
Alarm display.
Remedy: Please inform the authorized personnel/service department.
- Erroneous PLC communication: Correct the PLC program.
- It is possible to release NCK with the PLC command 7 from the wait condition.
This aborts the waiting command.
Program Clear alarm with the RESET key. Restart part program
Continuation:
6407 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: A tool change request or a verification 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!
Reaction: NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: - Check whether the magazine data are correctly defined (especially the location type).
- Check whether the tool data are correctly defined (especially the location type).
Program Clear alarm with the RESET key. Restart part program
Continuation:
6410 TO unit %1 tool %2 has reached its prewarning limit with D = %4
Parameters: %1 = TO unit
%2 = Tool identifier (name)
%3 = -Not used-
%4 = D number
Definitions: Tool monitoring: This message informs that the specified D offset has reached its prewarning limit for
a time-, quantity- or wear-monitored tool. If possible, the D number is displayed; if not, value 0 is
assigned to the 4th parameter.
If the function additive offset is being used, additive offset monitoring may be active instead of tool
wear monitoring. The actual type of tool monitoring is a tool property (see $TC_TP9). If replacement
tools are not being used, the duplo number specified has no meaning. The alarm is triggered through
the MMC or PLC (=OPI interface). The channel context is not defined. The TO unit was specified for
this reason (see $MC_MM_LINK_TOA_UNIT).
Reaction: Interface signals are set.
Alarm display.
Remedy: For information only. The user must decide what to do.
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