
Overview of alarms 06/2007
NCK alarms/ISO alarms
2-264
" Siemens AG 2007 All Rights Reserved
SINUMERIK 802D sl, Diagnostics Manual, 06/2007Edition
26074 Channel %1 switching off PLC control of axis %2 not allowed in the
current state
Parameters: %1 = channel
%2 = axis, spindle
Definitions: The PLC can return the control rights for an axis to program execution only if the axis is in the READY
state.
Reaction: Interpreter stop
NC Start disable in this channel.
Interface signals are set.
Alarm display.
Remedy: Activate axial RESET and repeat procedure.
Program Con-
tinuation:
Clear alarm with the Delete key or NC START.
26075 Channel %1 axis %2 not available for the NC program, as exclusively
controlled by the PLC
Parameters: %1 = Channel
%2 = Axis, spindle
Definitions: The axis is exclusively controlled by the PLC. Therefore, the axis is not available for the NC program.
Reaction: Interpreter stop
NC Start disable in this channel.
Interface signals are set.
Alarm display.
Remedy: Let the PLC control the axis not exclusively, but only temporarily. Change machine date
$MA_BASE_FUNCTION_MASK bit 4.
Program Con-
tinuation:
Clear alarm with the RESET key. Restart part program
26076 Channel %1 axis %2 not available for NC program, firmly assigned PLC
axis
Parameters: %1 = Channel
%2 = Axis, spindle
Definitions: The axis is a firmly assigned PLC axis. The axis is therefore not available for the NC program.
Reaction: Interpreter stop
NC Start disable in this channel.
Interface signals are set.
Alarm display.
Remedy: Do not define axis as a firmly assigned PLC axis. Change of machine date
$MA_BASE_FUNCTION_MASK bit5.
Program Con-
tinuation:
Clear alarm with the RESET key. Restart part program
26080 Channel %1 retraction position of axis %2 not programmed or invalid
Parameters: %1 = Channel
%2 = Axis, spindle
Definitions: No retraction position has been programmed for the axis trigger time or the position became invalid.
Reaction: Alarm display.
Remedy: Preset value by means of POLFA(Axis,Type,Pos), with type = 1 (absolut) or type = 2 (incremental);
type = 0 specifies the position as invalid.
Program Con-
tinuation:
Clear alarm with the Delete key or NC START.
26081 Channel %1 axis trigger of axis %2 was activated, but axis is not PLC-
controlled
Parameters: %1 = Channel
%2 = Axis, spindle
Definitions: The axis trigger for single axis was initiated. However, the axis is not PLC-controlled at the trigger time
(therefore no single axis) or the position became invalid.
Reaction: Alarm display.
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