Siemens SINUMERIK 840D sl Function Manual page 150

Safety Functions Integrated in the System/Drive
6.6 Safety-related output "n<n
Response time and error responses
Typical response time for n < n
1 interpolation clock cycle + 2 monitoring clock cycles
Maximum response times: 1 position controller clock cycle + 5.5 monitoring clock
cycles + 2 interpolation clock cycles + 3 PLC cycles
Caution
An error in the crosswise data comparison (STOP F, displayed using Alarms
27001, 27101 and onwards or F01611) only results in a subsequent STOP B/A
response, if at least one of the safety-related functions SBH, SG, SE or SN is
active. If only the function "n < n
error does not result in a subsequent STOP B/A response.
Note
If the axis/spindle runs at a speed n
the two monitoring channels, the SGA "n < n
This must be taken into account in the safe processing of the SGAs.
6-150
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
"
x
:
x
is active, then a crosswise data comparison
x
, then as a result of actual value differences in
x
" can have different states.
x
© Siemens AG, 2006. All rights reserved
03.06