Siemens SINUMERIK 840D sl Function Manual page 426

Diagnostics
10.2 NCK safety alarms for Sinumerik 840D sl
Explanation
Response
Remedy
Program
continuation
27105
Parameter
10-426
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
During the crosswise comparison of result list 2 between the NCK and
drive monitoring channels, a difference was detected in the monitoring
state of the safe cam plus monitoring.
– Safe cam 1+: Bits 0, 1 in result list 2
– Safe cam 2+: Bits 4, 5 in result list 2
– Safe cam 3+: Bits 8, 9 in result list 2
– Safe cam 4+: Bits 12, 13 in result list 2
Monitoring state (%3, %4):
– 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.
Axis %1, difference in function safe cam minus %2,
drive: %4
%1 = axis number
%2 = number of the cam
%3 = monitoring status, safe cam minus
%4 = monitoring status, safe cam minus
NCK: %3,
© Siemens AG, 2006. All rights reserved
03.06