08/2005 Overview of Alarms
2-65
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Definitions: The desired tool change is not possible. The specified magazine location is not contained
in the specified magazine.
Reactions: - NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Remedy: Check whether the magazine data have been defined correctly.
The user PLC program may have delivered incorrect data to the NCK.
Program Con-
tinuation:
Clear alarm with the RESET key. Restart part program
6404 Channel %1 tool change not possible. Tool %2 not available or not usable
Parameters: %1 = Channel ID
%2 = String (identifier)
Definitions: The desired tool change is not possible. The specified tool does not exist or cannot be
inserted.
Reactions: - NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Remedy: • Check whether the part program is written correctly.
• Check whether the tool data are correctly defined.
• Check whether there is a replacement tool which can be used for the specified tool.
Program Con-
tinuation:
Clear alarm with the RESET key. Restart part program
6405 Channel %1 command %2 has invalid PLC acknowledge parameter %3 - identifier
%4
Parameters: %1 = Channel ID
%2 = Command no.
%3 = PLC acknowledge parameter
%4 = Error code
Definitions: The specified command has been answered by PLC with an invalid acknowledgement in
the current combination. The following assignments are defined for "command no.":
1 Move tool, load or unload magazine
2 Prepare tool change
3 Execute tool change
4 Prepare tool change and execute with T command
5 Prepare tool change and execute with M command
7 Terminate canceled tool command
8 Check tool movement with reservation
9 Check tool movement
0 Transport acknowledgement
Parameters 2 and 3 designate the PLC command and the status number of the acknowl-
edgement.
Example: Parameter 4 of the alarm message is 10. It is not defined whether a buffer loca-
tion for asynchronous tool motion must be reserved. 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 magazine location specified in the invalid parameter
does not exist in the magazine.
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