Descriptions of functions
10.35 CPU time load with SINAMICS DCM
SINAMICS DCM DC Converter
658
Operating Instructions, 12/2018, A5E34763375A
WARNING
Exceeding the CPU time load
At a CPU time load of >100% on r9976[1], the correct functioning of the drive is no
longer ensured.
•
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 DCM.
Table 10- 80 Additional CPU time load as a result of optional components
Component
Additional CPU time load
AOP30 via PPI
+4%
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 SMC10, SMC30
+2%
1 CBE20
+1%
Internal encoder (p50083 = 2)
+2%
Parallel interface
+4%
Peer-to-peer
+4%
Calculating the thyristor blocking voltage
+4.5%
Is supported by the CCP
+3.5%
Memory card inserted
+1%
Technology controller
+1.5%
Free function blocks
Depending on the number of free function blocks
being used and their runtime groups, see Chapter
"Free function blocks (Page 661)"
DCC
Depending on the number of DCC blocks being
used and their runtime groups, see Chapter
"Drive Control Chart (DCC) (Page 663)"
