Siemens SINUMERIK 840D sl Function Manual page 658

Diagnostics
11.2 NCK safety alarms for SINUMERIK 840D sl
27102 Axis %1, difference in safely reduced speed function %2, NCK: %3, drive: %4
Response Alarm display
NC start disable in this channel
A STOP F was initiated. If a safety monitoring function was active, then a STOP B was also automatically
initiated. It is then necessary to power-down/power-up the control (power on).
Remedy Check that the safe inputs in both monitoring channels have switched into the same state within the permis‐
sible 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".
Program con‐ Clear the alarm with the RESET key. Restart the part program.
tinuation
27103 Axis %1, difference in safe limit position function %2, NCK: %3, drive: %4
Parameter %1 = axis name, spindle number
%2 = number of the SE limit
%3 = monitoring status, safe limit position
%4 = monitoring status, safe limit position
Explanation In the crosswise data comparison of result list 1 between the NCK and drive monitoring channels, a difference
was detected in the monitoring state of the safe limit position monitoring.
- safe limit position 1: Bits 2, 3 in result list 1
- Safe limit position 2: Bits 4, 5 in result list 1
Displayed monitoring status (NCK/drive) (%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
Response Alarm display
NC start disable in this channel
A STOP F was initiated. If a safety monitoring function was active, then a STOP B was also automatically
initiated. It is then necessary to power-down/power-up the control (power on).
Remedy Check that the safe inputs in both monitoring channels have switched into the same state within the permis‐
sible 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".
Program con‐ Clear the alarm with the RESET key. Restart the part program.
tinuation
658
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Safety Integrated