Siemens Sinumerik 840D sl Diagnostic Manual page 330

Overview of Alarms
NCK alarms
20092 Axis %1 travel to fixed stop still active
Parameters: %1 = Axis name, spindle number
Definitions: An attempt has been made to move an axis while it is in fixed stop or while the deselection function
has not yet been completed.
The alarm can be reprogrammed in the MD11412 $MN_ALARM_REACTION_CHAN_NOREADY
(channel not ready).
Reaction: Mode group not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy: Please inform the authorized personnel/service department.
Check the following:
- Has the axis at the fixed stop also been moved by a traversing movement of geometry axes?
- Is a selection carried out even though the axis is stationary at the stop?
- Has the deselection process been interrupted by a RESET?
- Has the PLC switched the acknowledgement signals?
Program Con- Clear alarm with the RESET key in all channels of this mode group. Restart part program.
tinuation:
20093 Axis %1 standstill monitoring at fixed-stop end point has been triggered
Parameters: %1 = Axis name, spindle number
Definitions: The position of the axis has been beyond the zero speed window ever since selection has been com-
pleted.
The alarm can be reprogrammed in the MD11412 $MN_ALARM_REACTION_CHAN_NOREADY
(channel not ready).
Reaction: Mode group not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy: Please inform the authorized personnel/service department.
- Check the mechanical components, e.g. has the stop broken away? Has the part to be clamped
given way?
- Position window for zero speed control too small (MD37020 $MA_FIXED_STOP_WINDOW_DEF)
(SD43520 $SA_FIXED_STOP_WINDOW). Default is 1 mm in each case.
Program Con- Clear alarm with the RESET key in all channels of this mode group. Restart part program.
tinuation:
20094 Axis %1 function has been aborted
Parameters: %1 = Axis name, spindle number
Definitions: The function has been aborted. The possible reasons for this are:
- Because a pulse disable has occurred, the torque can no longer be provided.
- The PLC has removed the acknowledgments.
The alarm can be reprogrammed in the MD11412 $MN_ALARM_REACTION_CHAN_NOREADY
(channel not ready).
Reaction: Mode group not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy: Check whether
- there is a pulse disable from the infeed/regenerative-feedback unit or from the PLC?
- the acknowledgement bits have been deleted by the PLC even though NCK has not requested dese-
lection?
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SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG, 2009. All Rights Reserved
03/2009