Siemens SINUMERIK 840D sl Function Manual page 421

05.08
Recommendation to measure the stopping distance/speed increase for the
acceptance 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. 9-14 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. 9-15 Exceeding SG
© Siemens AG 2008 All Rights Reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 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
Commissioning
9.5 Acceptance test
*Stopping distance
Braking time
to standstill
(zero speed)
at time t
3
t
3
Time
*Stopping distance
Braking time
to standstill
(zero speed)
at time t
3
t
3
Time
9-421