Siemens SINUMERIK 840D sl Function Manual page 637

27010 Axis %1 tolerance for Safe Operating Stop exceeded
Response Mode group not ready
Channel not ready
NC start disable in this channel
Interface signals are set
Alarm display
NC stop for alarm
Channel not ready
Stop the axis with speed setpoint = 0 (STOP B). As soon as the speed actual value is less than that defined
in the MD36960 $MA_SAFE_STANDSTILL_VELO_TOL, at the latest however, after the time in MD36956
$MA_SAFE_PULSE_DISABLE_DELAY expires, the pulses are cancelled (STOP A).
Remedy Check the tolerance for the standstill monitoring: does the value match the precision and control dynamic
performance of the axis?
If not, increase the tolerance. If yes, check the machine for damage and repair it.
Program con‐ Switch control system OFF and ON again.
tinuation
27011 Axis %1 safely reduced speed exceeded
Parameter %1 = axis name, spindle number
Explanation The axis has moved too quickly and faster than that specified in MD36931 $MA_SAFE_VELO_LIMIT. If
function "correction, safely reduced speed" in MD36901 $MA_SAFE_FUNCTION_ENABLE is enabled, then
for SG2 and SG4, the active correction value from MD36932 $MA_SAFE_VELO_OVR_FACTOR[0...15] must
be taken into account for the permissible speed.
Special case:
When SBH/SG is active in a configuration with a 1-encoder system, the speed that corresponds to the encoder
limit frequency was exceeded.
Response NC start disable in this channel
Interface signals are set
Alarm display
NC stop for alarm
The axis is stopped with STOP A, C, D or E, depending on what has been configured in MD36961
$MA_SAFE_VELO_STOP_MODE or MD36963 $MA_SAFE_VELO_STOP_REACTION.
Remedy If no obvious operator error has occurred: Check the input value of the MD, check safe input signals: is the
correct safely reduced speed selected?
Program con‐ Clear the alarm with the RESET key. Restart the part program.
tinuation
27012 Axis %1 safe limit position exceeded
Parameter %1 = axis name, spindle number
Explanation The axis has passed the limit position entered in MD36934 $MA_SAFE_POS_LIMT_PLUS or MD36935
$MA_SAFE_POS_LIMIT_MINUS.
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
11.2 NCK safety alarms for SINUMERIK 840D sl
Diagnostics
637