Siemens SINUMERIK 840Di Diagnostic Manual page 449

11/2006
26278 Channel %1 block %2: The axis or frame name %3 contained in
$NK_AXIS[%4] is unknown
Parameters: %1 = Channel number
%2 = Block number, label
%3 = Axis or frame name
%4 = Index of the chain element
Definitions: An unknown name was entered in the element of a kinematic chain in the component $NK_AXIS[...].
The name entered must be either a machine axis identifier or the name of a variable made available
by the OEM software.
Reaction: Correction block is reorganized.
Interface signals are set.
Alarm display.
Remedy: Enter a valid name in $NK_AXIS[...].
In a regular case (without OEM software), that is a machine axis identifier.
An empty string is also a valid name. That defines a constant chain link.
Program Clear alarm with NC START or RESET key and continue the program.
Continuation:
26280 Channel %1 axis %2 risk of collision %3 %4
Parameters: %1 = Channel number
%2 = Axis name, spindle number
%3 = 1st protection zone
%4 = 2nd protection zone
Definitions: The indicated axis was stopped due to the risk of collision.
Reaction: Alarm display.
Remedy: In JOG mode: Retract axis from danger zone.
In automatic mode: Determine reason for the risk of collision and eliminate. Possible reasons: wrong
NC program, too large handwheel overrides, axis couplings and vice-versa impairing of two channels.
Program Alarm display showing cause of alarm disappears. No further operator action necessary.
Continuation:
26282 Channel %1 block %2: Invalid definition of the protection zones or the
kinematic chains.
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: There are no valid definitions of the protection zones and / or the kinematic chains.
This alarm only occurs if an error occurred the last time the procedure PROTA was called, and its
cause has not been eliminated.
Reaction: Correction block is reorganized.
Alarm display.
NC Stop on alarm.
Remedy: Protection zones and kinematic chains must be defined without errors.
This is achieved by calling the procedure PROTA and closing it without errors.
Program Clear alarm with NC START or RESET key and continue the program.
Continuation:
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
Overview of Alarms
NCK alarms
2-449