Sinumerik Alarm 18002 Channel %1 block %2 NCK protection zone %3 cannot be activated. Error code %4
%1 = Channel number
%2 = Block number, label
%3 = Number of NCK protection zone
%4 = Error specification
An error has occurred on activating the protection zone. The error number gives the specific reason for the alarm. The following meanings apply:
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.
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.
– Alarm display.
– Interface signals are set.
– Correction block is reorganized.
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.
Clear alarm with NC START or RESET key and continue the program.
- Siemens Diagnostics Guide by Siemens