Siemens SINUMERIK 840Di Diagnostic Manual page 316

Overview of Alarms
NCK alarms
16931 Channel %1 subprograms: action %2<ALNX> maximum nesting depth
exceeded
Parameters: %1 = Channel number
%2 = Action number/action name
Definitions: Various actions can cause the current procedure to be interrupted. Depending on the action,
asynchronous subroutines are activated. These asynchronous subroutines can be interrupted in the
same manner as the user program. Unlimited nesting depth is not possible for asynchronous
subroutines due to memory limitations.
Example: In the case of an approach block in a repositioning procedure do not interrupt repeatedly,
instead wait until processing is completed.
Possible actions are: mode change, SlashOn/Off, overstoring.
Reaction: Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Initiate a block change and repeat the action.
Program Clear alarm with the Delete key or NC START.
Continuation:
16932 Channel %1 conflict when activating user data type %2
Parameters: %1 = Channel number
%2 = Data type
Definitions: The "activate user data" function (PI service _N_SETUDT) modifies a data block (tool offset, settable
zero offset or base frame) which is also written by the NC blocks in preparation.
In the event of a conflict, the value entered by the MMC is reset.
Parameter %2 specifies which data block is affected:
1: Active tool offset
2: Base frame
3: Active zero offset
Reaction: Alarm display.
Remedy: Check the inputs on the MMC and repeat if necessary.
Program Clear alarm with the Delete key or NC START.
Continuation:
16933 Channel %1 interrupt treatment: action %2<ALNX> not allowed in the
current state
Parameters: %1 = Channel ID
%2 = Action number/action name
Definitions: If a temporary standstill has occurred because of a Reorg event across block boundaries, it is possible
that a block without Reorg capability has been loaded. In this situation, it is unfortunately necessary
to abort the Reorg event handling! Reorg events are, e.g. abort subprogram, delete distance-to-go
and interrupts.
Reaction: NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Abort program with the RESET key.
Program Clear alarm with the RESET key. Restart part program
Continuation:
2-316
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006