Siemens SINUMERIK 840D sl Function Manual page 750

Diagnostics
11.5 Reducing the number of alarms
● 27106 difference for the function safely reduced speed n
● 27107 difference for the function, cam modulo monitoring
Subsequent alarms for Alarms 27001 and 27101 to 27107
● 27023 STOP B initiated
● 27024 STOP A initiated
Activation
Priorities are assigned to alarms by appropriately parameterizing MD10094
$MN_SAFE_ALARM_SUPPRESS_LEVEL. When this MD is set to either 12 or 13, in addition
to the alarm suppression, set with values 2 and 3, the function that assigns priorities to alarms
is also activated.
Alarm 27124,
By assigning priorities to alarms, alarms with the power on clear criterion are also cleared or
no longer displayed. In spite of this, the system is in a state in which a power on is required.
If Alarm 27024 "STOP A initiated" has occurred, but is no longer displayed, then at least group
Alarm 27124 "STOP A for at least 1 axis" is displayed.
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Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Safety Integrated