Siemens SINUMERIK 840D sl Function Manual page 521

05.08
Response
Remedy
Program
continuation
27106
Parameter
Explanation
Response
Remedy
Program
continuation
© Siemens AG 2008 All Rights Reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
10.2 NCK safety alarms for SINUMERIK 840D sl
– L– = monitoring active in this monitoring channel, lower limit value
violated
Alarm display
If a safety monitoring function was active (SBH, SG, SE, SN), then a
STOP B was also automatically initiated. It is necessary to power–
down the control and power it up again (power on).
Check that the safe actual values in both monitoring channels match.
Drive parameters r9711[0,1] (diagnostics, result list 2 [NCK, drive]) or
r9735[0,1] / r9736[0,1] / r9737[0,1] /r9738[0,1] / r9739[0,1] (diagnostics,
result list 3/4/5/6/7 [NCK, drive]) can be used for further diagnostics.
Further, diagnostics is possible using the servo trace signals "Result list
2/3/4/5/6/7 NCK" and "Result list 2/3/4/5/6/7 drive".
Clear the alarm with the RESET key. Restart the part program.
Axis %1, difference for the function safely reduced speed n
NCK: %2, drive: %3
%1 = axis number
%2 = monitoring status, safely reduced speed n
%3 = monitoring status, safely reduced speed n
In the crosswise data comparison of result list 2 between the NCK and
drive monitoring channels, a difference was detected in the monitoring
state of the safely reduced speed n
– Safely reduced speed n
– Safely reduced speed n
Monitoring state (%2, %3):
– OFF = monitoring inactive in this monitoring channel
– OK = monitoring active in this monitoring channel, limit values not
violated
– L+ = monitoring active in this monitoring channel, upper limit value
violated
– L– = monitoring active in this monitoring channel, lower limit value
violated
Alarm display
If a safety monitoring function was active (SBH, SG, SE, SN), then a
STOP B was also automatically initiated. It is necessary to power–
down the control and power it up again (power on).
Check that the safe actual values in both monitoring channels match.
For further diagnostics refer to the drive parameters r9711[0], r9711[1]
and the servo–trace signals "result list 2 NCK" and "result list 2 drive".
Clear the alarm with the RESET key. Restart the part program.
x
x
monitoring.
x
+: Bits 16, 17 in result list 2
x
–: Bits 18, 19 in result list 2
x
Diagnostics
,
x
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