Siemens SINUMERIK 840D sl Function Manual page 360

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
1
Response time of the system,
response at time t
2
Active SBH limit
Fig. 9-6 Exceeding SBH
Actual speed (ideal case)
Actual position value
The limit value is exceeded at
time t
1
Active SG limit
Response time of the system,
response at time t
2
Fig. 9-7 Exceeding SG
9-360
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
*Stopping distance = response distance +
braking distance
Speed increase
t t
1 2
*Stopping distance = response distance +
braking distance
Speed increase
t
t
1
2
*Stopping distance
Braking time to standstill
(zero speed) at time t
t
3
*Stopping distance
Braking time to standstill
(zero speed) at time t
t
3
© Siemens AG, 2006. All rights reserved
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