Siemens SINUMERIK 840D sl Series Diagnostics Manual page 353

08/2005
There is an error in the programmed measurement task.
Possible causes:
• Invalid measurement mode
• Invalid probe
• Invalid encoder
• Invalid number of measurement signal edges
• Identical measurement signal edges are only programmable in mode 2
• Invalid FIFO number
• Mismatch between the number of FIFOs programmed and the number of probes used in
the measurement task.
Further causes:
A measurement task is already active (e.g. from a synchronized action).
Reactions: - Local alarm reaction.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Remedy: Correct the measurement tasks.
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
21702
Channel %1 block %3 axis %2 measurement aborted
Parameters: %1 = Channel number
%2 = Axis name, spindle number
%3 = Block number
Definitions: The measurement block has ended (the programmed end position of the axis has been
reached) but the activated touch probe has not yet responded.
Measurement level 2 (MEAWA, MEASA, MEAC)
Measured values cannot be converted to the workpiece coordinate system. The mea-
sured values of the GEO axes programmed in the measurement task are only available in
the machine coordinate system.
Causes:
Not all GEO axes were programmed in the measurement task. At least one measured
value is therefore missing for conversion back into the workpiece coordinate system.
Further causes:
The measurement tasks programmed for all GEO axis are not identical.
Reactions: - Alarm display.
Remedy: Verify the traversing movement in the measurements block.
• Is it necessary in all cases for the activated probe to have switched up to the specified
axis position?
• Are the probe, cable, cable distributor, terminal connections in good order?
Either program all GEO axes explicitly or program the traversing movement with the
POS[axis] command.
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
21703
Channel %1 block %3 axis %2 touch probe not deflected, illegal edge polarity
Parameters: %1 = Channel number
%2 = Axis name, spindle number
%3 = Block number
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
2-353