Siemens SINUMERIK 840Di Diagnostic Manual page 459

11/2006
27010 Axis %1 tolerance for safe standstill exceeded
Parameters: %1 = Axis number
Definitions: The axis has moved too far away from the setpoint position. It is further away than allowed in MD
$MA_SAFE_STANDSTILL_TOL.
The alarm can be reprogrammed in the MD $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.
Stop of the axis with the setpoint speed value=0 (STOP B). As soon as the actual speed value is
smaller than defined in MD $MA_SAFE_STANDSTILL_VELO_TOL, but the latest after time-out in MD
$MA_SAFE_PULSE_DISABLE_DELAY, the pulses will be suppressed (STOP A).
Remedy: Check the tolerance of zero speed monitoring: does the value match the precision and control
dynamics of the axis? If not, increase tolerance. If yes, check the machine for any damage and rectify
it.
Program Switch control OFF - ON.
Continuation:
27011 Axis %1 safe velocity exceeded
Parameters: %1 = Axis number
Definitions: The axis has moved too quickly and faster than allowed in MD $MA_SAFE_VELO_LIMIT. With active
SBH/SG and a 1-encoder system, the velocity which corresponds to an encoder limit frequency of MD
SAFE_ENC_FREQ_LIMIT has been exceeded.
Reaction: NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Axis stop with STOP A, C, D or E, depending on the configuration in MD
$MA_SAFE_VELO_STOP_MODE or MD $MA_SAFE_VELO_STOP_REACTION.
Remedy: If no obvious operator error occurred: check the input value of the MD, check SGEs: was the correct
safe velocity selected? If the MDs and SGEs are o.k., check the machine for any damage and rectify it.
Program Clear alarm with the RESET key. Restart part program
Continuation:
27012 Axis %1 safe end position exceeded
Parameters: %1 = Axis number
Definitions: The axis has exceeded the limit position entered in MD $MA_SAFE_POS_LIMT_PLUS or MD
$MA_SAFE_POS_LIMIT_MINUS.
Reaction: NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Stop the axis with STOP C,D or E, depending on the configuration in MD
$MA_SAFE_POS_STOP_MODE.
Remedy: If no obvious operator error occurred: Check the input value of the machine data and check the SGEs:
was the correct one of 2 limit positions selected? If the MDs and SGEs are o.k., check the machine
for any damage and rectify it.
Program Clear alarm with the RESET key. Restart part program
Continuation: Remove the user agreement for this axis. Then press the RESET key causing the program to be
aborted and the alarm to be deleted. Traverse the axis in JOG mode to the valid traversing range. After
fault correction of the NC program and an axis position check, the user agreement can be set again
and the program can be restarted.
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
Overview of Alarms
NCK alarms
2-459