
Overview of alarms 06/2009
NCK alarms
2-128
© Siemens AG 2009 All Rights Reserved
SINUMERIK 802D sl, Diagnostics Manual, 06/2009
Definitions: No pitch was programmed in a thread block with G33 (thread with constant pitch) or G331 (rigid tap-
ping).
Reaction: Correction block is reorganized.
Interface signals are set.
Alarm display.
Remedy: The thread pitch must be programmed for the specified geometry axis under the associated interpo-
lation parameters.
X -> I
Y -> J
Z -> K
Program Con-
tinuation:
Clear alarm with NC START or RESET key and continue the program.
16730 [Channel %1: ] Block %2 axis %3 wrong parameter
Parameters: %1 = Channel number
%2 = Block number, label
%3 = Axis name, spindle number
Definitions: In G33 (tapping with constant pitch) the pitch parameter was not assigned to the axis that determines
the velocity.
For longitudinal and face threads, the thread pitch for the specified geometry axis must be pro-
grammed under the associated interpolation parameter.
X -> I
Y -> J
Z -> K
For taper threads, the address I, J, K depends on the axis with the longer path (thread length). A 2nd
lead for the other axis is, however, not specified.
Reaction: Correction block is reorganized.
Interface signals are set.
Alarm display.
Remedy: Assign lead parameters to the axis that determines the velocity.
Program Con-
tinuation:
Clear alarm with NC START or RESET key and continue the program.
16740 [Channel %1: ] Block %2 no geometry axis programmed
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: No geometry axis was programmed for tapping (G33) or for rigid tapping (G331, G332). The geometry
axis is, however, essential if an interpolation parameter has been specified.
Example:
N100 G33 Z400 K2 ; thread pitch 2mm, thread end Z=400 mm
N200 SPOS=0 ; position spindle in axis mode
N201 G90 G331 Z-50 K-2 ; tapping to Z=-50, counterclockwise
N202 G332 Z5 ; retraction, direction reversal automatic
N203 S500 M03 ; spindle again in spindle mode
Reaction: Correction block is reorganized.
Interface signals are set.
Alarm display.
Remedy: Specify geometry axis and corresponding interpolation parameters.
Program Con-
tinuation:
Clear alarm with NC START or RESET key and continue the program.
16750 [Channel %1: ] Block %2 axis %3 SPCON not programmed
Parameters: %1 = Channel number
%2 = Block number, label
%3 = Axis name, spindle number
Definitions: For the programmed function (rotary axis, positioning axis), the spindle must be in position control
mode.
Reaction: Correction block is reorganized.
Interface signals are set.
Alarm display.
Remedy: Program position control of the spindle with SPCON in the previous block.
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