Siemens SINUMERIK 840Di Diagnostic Manual page 308

Overview of Alarms
NCK alarms
16800 Channel %1 block %2 traverse instruction DC/CDC for axis %3 not
allowed
Parameters: %1 = Channel number
%2 = Block number, label
%3 = Axis name, spindle number
Definitions: The keyword DC (Direct Coordinate) can only be used for rotary axes. This causes approach of the
programmed absolute position along the shortest path.
Example:
N100 C=DC(315)
Reaction: Correction block is reorganized.
Interface signals are set.
Alarm display.
Remedy: Please inform the authorized personnel/service department. Replace the keyword DC in the displayed
NC block by specifying AC (Absolute Coordinate).
If the alarm display is the result of an error in the axis definition, the axis can be declared as a rotary
axis by means of the axis-specific MD 30300 IS_ROT_AX.
Corresponding machine data:
Modify MD 30310: ROT_IS_MODULO
Modify MD 30320: DISPLAY_IS_MODULO
Program Clear alarm with NC START or RESET key and continue the program.
Continuation:
16810 Channel %1 block %2 traverse instruction ACP for axis %3 not allowed
Parameters: %1 = Channel number
%2 = Block number, label
%3 = Axis name, spindle number
Definitions: The keyword ACP (Absolute Coordinate Positive) is only allowed for "modulo axes". It causes
approach of the programmed absolute position in the specified direction.
Reaction: Correction block is reorganized.
Interface signals are set.
Alarm display.
Remedy: Please inform the authorized personnel/service department. In the displayed NC block, replace the
keyword ACP by specifying AC (Absolute Coordinate).
If the alarm display is based on an incorrect axis definition, the axis with the axis-specific MD 30300:
IS_ROT_AX and MD 30310: ROT_IS_MODULO can be declared a rotary axis with modulo change.
Corresponding machine data:
Modify MD 30320: DISPLAY_IS_MODULO
Program Clear alarm with NC START or RESET key and continue the program.
Continuation:
16820 Channel %1 block %2 traverse instruction ACN for axis %3 not allowed
Parameters: %1 = Channel number
%2 = Block number, label
%3 = Axis name, spindle number
Definitions: The keyword ACN (Absolute Coordinate Negative) is only allowed for "modulo axes". It causes
approach of the programmed absolute position in the specified direction.
Reaction: Interpreter stop
NC Start disable in this channel.
Interface signals are set.
Alarm display.
Remedy: Please inform the authorized personnel/service department. In the displayed NC block, replace the
keyword ACN by specifying AC (Absolute Coordinate).
If the alarm display is based on an incorrect axis definition, the axis with the axis-specific MD 30300:
IS_ROT_AX and MD 30310: ROT_IS_MODULO can be declared a rotary axis with modulo change.
Corresponding machine data:
Modify MD 30320: DISPLAY_IS_MODULO
Program Clear alarm with the RESET key. Restart part program
Continuation:
2-308
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006