
Overview of alarms 06/2007
NCK alarms/ISO alarms
2-186
" Siemens AG 2007 All Rights Reserved
SINUMERIK 802D sl, Diagnostics Manual, 06/2007Edition
16915 Channel %1 action %2<ALNX> not allowed in the current block
Parameters: %1 = channel number
%2 = action number/action name (see Section 1.5 Action List)
Definitions: If traversing blocks are interrupted by asynchronous subroutines, then it must be possible for the inter-
rupted program to continue (reorganization of block processing) after termination of the asynchronous
subroutine.
The 2nd parameter describes which action wanted to interrupt block processing.
Reaction: Alarm display.
Remedy: Let the program continue to a reorganized NC block or modify part program.
Program Con-
tinuation:
Clear alarm with the Delete key or NC START.
16916 Channel %1 repositioning: action %2<ALNX> not allowed in the current
state
Parameters: %1 = channel number
%2 = action number/action name (see Section 1.5 Action List)
Definitions: Block processing cannot be repositioned at the moment. It is also not possible to switch operating
modes.
The 2nd parameter describes which action should be used to reposition the block processing.
Reaction: Alarm display.
Remedy: Let the program continue to a repositionable NC block or modify part program.
Program Con-
tinuation:
Clear alarm with the Delete key or NC START.
16919 Channel %1 action %2<ALNX> is not allowed due to a pending alarm
Parameters: %1 = channel number
%2 = action number/action name (see Section 1.5 Action List)
Definitions: This action cannot be performed due to an alarm, or the channel is in an error state.
Reaction: Alarm display.
Remedy: Press the RESET key.
Program Con-
tinuation:
Clear alarm with the Delete key or NC START.
16920 Channel %1 action %2<ALNX> is already active
Parameters: %1 = channel number
%2 = action number/action name (see Section 1.5 Action List)
Definitions: An identical action is still in progress.
Reaction: Alarm display.
Remedy: Wait until the previous action is finished and then repeat the operation.
Program Con-
tinuation:
Clear alarm with the Delete key or NC START.
16922 Channel %1 subprograms: action %2<ALNX> maximum nesting depth
exceeded
Parameters: %1 = channel number
%2 = action number/action name (see Section 1.5 Action List)
Definitions: Various actions can cause an interruption in the current processing operation.
Depending on the action, internal routines are activated. These programs can be interrupted in the
same manner as the NC program. Unlimited nesting depth is not possible for internal routines due to
memory limitations.
Example:
An interrupt interrupts the current program run. Other interrupts with higher priorities interrupt the pre-
viously active internal program runs.
Examples of actions are dry run, decoding single block, delete distance to go, etc.
Reaction: NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
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