Siemens Sinumerik 840D sl Function Manual page 582

Commissioning
9.5 Acceptance test
Recommendation to measure the stopping distance/speed increase for the ac-
ceptance test
Actual speed (ideal case)
Actual position value
The limit value is
exceeded at time t
Response time of the system,
response at time t
2
Active SBH limit
Figure 9-13 Exceeding SBH
Actual speed (ideal case)
Actual position value
The limit value is
exceeded at time t
Active SG limit
Response time of the system,
response at time t
2
Figure 9-14 Exceeding SG
9-582
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
1
Speed increase
t t
1 2
Speed increase
1
t
t
1
2
*Stopping distance = response distance +
braking distance
*Stopping distance
Braking time
to standstill at
time t
3
t
3
*Stopping distance = response distance +
braking distance
*Stopping distance
Braking time
to standstill at
time t
3
t
3
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10/15
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