Siemens SINUMERIK 840Di Diagnostic Manual page 371

11/2006
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 MD 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 Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Continuation:
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
completed.
The alarm can be reprogrammed in the MD 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 (37020 MD: $MA_FIXED_STOP_WINDOW_DEF)
(43520 setting data: $SA_FIXED_STOP_WINDOW). Default is 1 mm in each case.
Program Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Continuation:
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
Overview of Alarms
NCK alarms
2-371