Siemens SINUMERIK 840D sl Function Manual page 424

Diagnostics
10.2 NCK safety alarms for Sinumerik 840D sl
27102
Parameter
Explanation
Response
Remedy
Program
continuation
10-424
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
Axis %1, difference in function safely-reduced speed
%3, drive: %4
%1 = axis number
%2 = SG stage for which the difference was detected
%3 = monitoring status, safely-reduced speed
%4 = monitoring status, safely-reduced speed
In the crosswise data comparison of result list 1 between the NCK and
drive monitoring channels, a difference in the monitoring state of the
safely-reduced speed monitoring was detected.
– Safely-reduced speed 1: Bits 6, 7 in result list 1
– Safely-reduced speed 2: Bits 8, 9 in result list 1
– Safely-reduced speed 3: Bits 10, 11 in result list 1
– Safely-reduced speed 4: Bits 12, 13 in result list 1
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 inputs in both monitoring channels have switched
into the same state within the permissible time tolerance.
For further diagnostics refer to the drive parameters r9710[0], r9710[1]
and the servo-trace signals "result list 1 NCK" and "result list 1 drive".
Clear the alarm with the RESET key. Restart the part program.
%2, NCK:
© Siemens AG, 2006. All rights reserved
03.06