Siemens SINUMERIK 840Di Diagnostic Manual page 349

11/2006
18002 Channel %1 block %2 NCK protection zone %3 cannot be activated. Error
code %4
Parameters: %1 = Channel number
%2 = Block number, label
%3 = Number of NCK protection zone
%4 = Error specification
Definitions: An error has occurred on activating the protection zone. The error number gives the specific reason
for the alarm.
The following applies:
1: Incomplete or conflicting contour definition.
2: Contour encompasses more than one surface area.
3: Tool-related protection zone is not convex.
4: If both boundaries are active in the 3rd dimension of the protection zone and both limits have the
same value.
5: The number of the protection zone does not exist (negative number, zero or greater than the
maximum number of protection zones).
6: Protection zone definition consists of more than 10 contour elements.
7: Tool-related protection zone is defined as inside protection zone.
8: Incorrect parameter used.
9: Protection zone to be activated is not defined or number of contour element <2 or
>MAXNUM_CONTOURNO_PROTECTAREA.
10: Error in internal structure of the protection zones.
11: Other errors not specified further.
12: The number of protection zones simultaneously active exceeds the maximum number (channel-
specific machine data).
13,14: Contour element for protection zones cannot be created.
15,16: No more memory space for the protection zones.
17: No more memory space for the contour elements.
Reaction: Correction block is reorganized.
Interface signals are set.
Alarm display.
If the alarm is output on ramp-up (2nd parameter: "INIT" instead of block number), "Channel not ready
to operate" will be set.
Remedy: Please inform the authorized personnel/service department.
1. Reduce the number of simultaneously active protection zones (MD).
2. Modify part program:
- Delete other protection zones.
- Preprocessing stop.
If the alarm occurs during the control ramp up, the system variables $SN_PA_... for the stated
protection zone must be corrected. Then make a restart. If the incorrect date is not identifiable, the
immediate activation of the protection zone can be removed and the system variables of the protection
zone can be rewritten with the aid of NPROTDEF.
Program Clear alarm with NC START or RESET key and continue the program.
Continuation: If the alarm occurs during NC program execution, the current block can be changed. This way, the
NPROT parameters can also be adjusted. However, if there is an error in the definition of the
protection zone, the NC program must be aborted and the definition must be corrected under
NPROTDEF.
If the alarm occurs on control ramp-up, system variables $SN_PA_... must be corrected for the
specified protection zone. This can be done by downloading an Initial.ini file that includes the relevant
corrected date. If afterwards a restart is performed again, the alarm will have been removed provided
that the data are consistent.
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
Overview of Alarms
NCK alarms
2-349