Siemens Sinumerik 840D sl Diagnostic Manual page 63

03/2009
Parameters 2 and 3 designate the PLC command and the status number of the acknowledgement.
Example: Parameter 4 of the alarm message is 10. It is not defined that a buffer location has to be
reserved for asynchronous tool motion. In the example, the parameter is ignored by the NCK. Further
possible causes for the alarm: The tool change defined by the command is not possible. The maga-
zine location specified in the invalid parameter does not exist in the magazine.
The 3rd parameter - error identification - gives a more detailed description of the alarm. Meanings:
- 0 = not defined
- 1 = status not allowed or undefined status received by PLC
- 2 = source and/or target magazine no./location no. unknown
- 3 = not defined
- 4 = target magazine no. and/or location no. are not the end target in the tool motion command
- 5 = not defined
- 6 = source and/or target magazine no./location no. unknown during tool change
- 7 = PLC comm. with inconsistent data: either inconsistent magazine addresses in VDI or NCK com-
mand unequal to PLC acknowledgement or both
- 8 = PLC comm. with inconsistent data: while rejecting a tool, the tool to be rejected was unloaded
asynchronously. NCK cannot perform a new selection.
- 9 = PLC comm. with inconsistent data: the command acknowledgement data wants to move a tool
to a location that is occupied by another tool.
- 10 = Asynchronous tool motion with reservation is only defined for the motion from a magazine to a
buffer location.
Reaction: NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Please inform the authorized personnel/service department. Erroneous PLC communication: Correct
the PLC program.
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
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 pro-
cessing 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 Con- Clear alarm with the RESET key. Restart part program
tinuation:
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.
© Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Overview of Alarms
NCK alarms
2-63