Siemens sinamics dcp - Page 375

Operation
7.17 CPU time load with SINAMICS DCP
SINAMICS DCP
Operating Instructions, 09/2019, A5E34382853K
373
WARNING
Exceeding the CPU time load
It is no longer ensured that the SINAMICS DCP functions correctly for a CPU time load
of >100 % in p9976[1].
• Ensure that the CPU time load remains below 100 %.
Note
When the time load of the CUD is too high (r9976[1] >100%), fault F60099 (in extreme
cases F01205) is output (time slice overflow). In such a case, the drive needs to be
switched off and then back on again (
POWER OFF / POWER ON).
The CPU time load must be taken into consideration when configuring and commissioning
the SINAMICS DCP.
Table 7- 79 Additional CPU time load as a result of optional components
Component
Additional CPU time load
1 TM31
+4%
2 TM31
+5%
3 TM31
+6%
1 TM15
+1%
2 TM15
+1.5 %
3 TM15
+2%
1 TM150
+1%
2 TM150
+1.5 %
3 TM150
+2%
1 CBE20
+1%
Parallel interface
+4%
Memory card inserted +1%
Free function blocks Depending on the number of free function blocks
being used and their runtime groups, see Chap-
ter "Free function blocks (Page 375)".
DCC Depending on the number of DCC blocks being
used and their runtime groups, see Chapter
"Drive Control Chart (DCC) (Page 377)".
Note
The additional CPU time loads specified above for TM15,
TM31 and TM150 apply for a
sampling time of 4
ms (TM15, TM31: p4099 = 4000) or 26 ms (TM150). Setting faster
sampling rates for the TM modules increases the CPU time load of the SINAMICS
DCP to
values
considerably higher than those stated previously.