Siemens SINUMERIK 840D sl Function Manual page 428

Diagnostics
10.2 NCK safety alarms for Sinumerik 840D sl
Response
Remedy
Program
continuation
27107
Parameter
Explanation
Response
Remedy
Program
continuation
10-428
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
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 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.
Axis %1, difference with cam modulo monitoring
%2, drive: %3
%1 = axis number
%2 = monitoring status, safe cam modulo range
%3 = monitoring status, safe cam modulo range
In the crosswise data comparison of result list 2 between the NCK and
drive monitoring channels, a difference was detected in the monitoring
status of the cam modulo range monitoring. Safe cam modulo range:
Bits 20, 21 in result list 2
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.
function, NCK:
© Siemens AG, 2006. All rights reserved
03.06