Installation manual
Page 109 of204
6.3 Response times for fault distance monitoring
The following calculation schematic applies for calculating the Worst Case condition.
System speed to the sampling instant
V(t)
System speed in case of PSCBR response:
V
A
(t)
Monitoring threshold (SLS or SCA):
V
S
= constant for all t
Parameterized filter value:
XF = constant for all t
Maximum possible acceleration of the application:
a = constant for all t
Deceleration after shut-down:
a
V
= constant for all t
Sampling instant for occurrence of the Worst Case event: T
Fault
Response time of the PSCBR systems:
t
Response
FGor the Worst Case assessment it is assumed that the drive will initially move exactly to the
parameterized threshold with a speed v(k) and then will accelerate to the maximum possible
value a0.
Summary of Contents for PSCBR-C-10 Series
Page 1: ...Installation manual Page 1 of204 Installation Manual For PSCBR modules Series PSCBR C 10...
Page 178: ...Installation manual Page 178 of 204...
Page 181: ...Installation manual Page 181 of 204 Example for a risk analysis Gefahrenanalyse Risk analysis...
