Siemens SINUMERIK 840Di Diagnostic Manual page 370

Overview of Alarms
NCK alarms
20090 Axis %1 travel to fixed stop not possible. Check programming and axis
data.
Parameters: %1 = Axis name, spindle number
Definitions: 1. The "Traverse against fixed stop" function has been programmed with FXS[AX]=1 but the axis does
not (yet) support this. Check MD 37000. This function is not available for gantry axes and simulated
axes.
2. On selection, no movement was programmed for axis AX. AX is a machine axis identifier.
3. It is always necessary to program a traversing movement in the selection block for the axis/spindle
for which the "Traverse against fixed stop" function is activated.
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 axis type.
- Check MD 37000.
- Is a machine axis movement missing in the approach block?
Program Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Continuation:
20091 Axis %1 has not reached fixed stop
Parameters: %1 = Axis name, spindle number
Definitions: On attempting to traverse against a fixed stop, the programmed end position has been reached or the
traversing movement has been aborted. The alarm can be concealed by means of the machine data
$MA_FIXED_STOP_ALARM_MASK.
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: Correct the part program and the settings:
- Has the traversing block been aborted?
- If the axis position does not correspond to the programmed end position, then correct the end
position.
- If the programmed end position is in the part, the triggering criterion must be checked.
- Has the contour deviation leading to triggering been dimensioned too large? Has the torque limit
been set too high?
Program Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Continuation:
2-370
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006