Siemens SINUMERIK 840D sl Function Manual page 641

27024 Axis %1 STOP A activated
Response Mode group not ready
Channel not ready
NC start disable in this channel
Interface signals are set
Alarm display
NC stop for alarm
"Pulse cancellation" initiated.
Remedy Remove the causes of
- Alarm 27011 "Safely reduced speed exceeded",
- Alarm 27013 "Safe Acceleration Monitor exceeded"
- Alarm 27023 "STOP B initiated"
- unsuccessful test stop.
(refer to the description of the alarms).
Program con‐ Switch control system OFF and ON again.
tinuation
27032 Axis %1 checksum error, safety-relevant monitoring functions. Confirmation and acceptance test required!
Parameter %1 = axis name, spindle number
Explanation A checksum protects the relevant MD to parameterize the axis-specific safety functionality. The alarm indi‐
cates that the actual checksum no longer matches the saved checksum, i.e. that either an MD value was
illegally changed or is corrupt.
In the commissioning phase (SPL commissioning mode active), instead of the individual axis-specific check‐
sum alarms (27032, 27035 and 27060), the axis-specific group alarm 27132 is displayed. MD10094
$MN_SAFE_ALARM_SUPPRESS_LEVEL can be used to further reduce the alarm display so that only one
alarm is displayed for all axes (global group alarm 27135).
Response Mode group not ready
Channel not ready
NC start disable in this channel
Interface signals are set
Alarm display
NC stop for alarm
Remedy Check MD Have the checksum re-calculated. Safety functions (motion monitoring functions) should be subject
to a new acceptance test.
Program con‐ Switch control system OFF and ON again.
tinuation
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
11.2 NCK safety alarms for SINUMERIK 840D sl
Diagnostics
641