Siemens SINUMERIK 840D Description Of Functions page 355

11.03
6.3 Alarm suppression
Some alarms with the same meaning are triggered by both NCK and 611 digital
monitoring channels. In order to improve the transparency of the alarm display,
alarms with the same significance triggered at a later time are suppressed. The
alarm of the monitoring channel, that first detected the error that triggered the
alarm, is displayed.
This only applies to some of the axial alarms. Alarms whose information
content differs for the NCK and 611 digital alarm display are still displayed
separately.
The two-channel stop initiation is not affected by this alarm suppression. This
functionality is implemented and ensured irrespective of how the type of alarm
was initiated.
All NCK and 611 digital safety alarms are listed in the table below.
The alarms marked with "No" are not suppressed if triggered in two channels,
those marked with "Yes", are only displayed for one monitoring channel if
actively suppressed.
Table 6-2
NCK
alarm
number
20095
20096
27000
27001
27002
27003
27004
27005
27006
27007
27008
27010
27011
27012
27013
27020
27021
27022
27023
27024
27030
27031
27032
27033
27034
27090
27091
27092
27093
27094
27095
27096
27100
27101
27102
27103
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
Comparison of NCK and 611 digital safety alarms
611 digital Suppression
alarm
number
- no
- no
300950 yes, replaced by Alarm 27100
300911 no
300951 no
- no
- no
- no
- no
300952 no
- no
300907 yes
300914 yes
300915 yes
300906 yes
300910 yes
300909 yes
300908 yes
300901 yes
300900 yes
300743 no
301701 no
300744 no
- no
- no
- no
- no
- no
- no
- no
- no
- no
- no
- no
- no
- no
6 Alarms
6.3 Alarm suppression
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