Sinumerik Alarm 14821 Channel %1 block %2 error in selection or deselection of GWPS


Sinumerik Alarm 14821 Channel %1 block %2 error in selection or deselection of GWPS

Parameters:
%1 = Channel number
%2 = Block number, label

Definitions:
On selecting grinding wheel surface speed programming with GWPSON, one of the following errors occurred:
• An attempt has been made to select the GWPS programming for a spindle that has already been assigned to another tool by TMON, GWPSON, CLGON or activation of the tool length compensation.
• Selection does not refer to a grinding-specific tool (400-499).
• An attempt has been made to select GWPS for the active tool although the TLC is not switched on.
• Selection refers to an invalid spindle number.
• A grinding wheel radius equal to zero was specified. On deselecting grinding wheel surface speed programming with GWPSOFF, one of the following errors occurred:
• Deselection does not refer to a grinding-specific tool (400-499).
• An attempt has been made to deselect GWPS for the active tool although the tool length compensation has not been activated.
• Selection refers to an invalid spindle number.

Reactions:
– Correction block is reorganized.
– Interface signals are set.
– Alarm display.

Remedy:
• Check GWPSON and GWPSOF command.
• Check tool compensation data:
$TC_DP1 : 400 – 499;
$TC_TGP1: Spindle number.

Program Continuation:
Clear alarm with NC START or RESET key and continue the program.

References

  1. Siemens Diagnostics Guide by Siemens
Sinumerik Alarm 14821 Channel %1 block %2 error in selection or deselection of GWPS