Note
The described procedure is also required for an online configuration with an automatic
configuration.
Table 7-4
Example for power units in booksize format (vector drives)
Example
Settings
1 to 3 vector drives
Current controller cycle = 250 µs
Speed controller cycle = 1 ms
T
I
= T
O
= at least 250 µs
T
DP
= 1 ms (... or 2 ms, 3 ms, ....)
T
MAPC
= T
DP
4 to 6 vector drives
Current controller cycle = 500 µs
Speed controller cycle = 2 ms
T
I
= T
O
= at least 500 µs
T
DP
= 2 ms (... or 4 ms, 8 ms, ....)
T
MAPC
= T
DP
Note
Vector drives in chassis format can also be operated with a current controller sampling time
of 400 µs (amongst other settings).
In the SIMOTION context, the following should be considered:
● A current controller sampling time of 400 µs is only possible if control is via a
SINAMICS S120 control unit, which is not operated isochronously via PROFIBUS/
PROFINET on SIMOTION D.
● If the bus is operated isochronously, only cycle clocks with an integer multiple of 125 µs
are possible (i.e. 375 µs or 500 µs instead of 400 µs, for example).
● The PROFIBUS Integrated of a D4x5‑2/CX32‑2 is always isochronous! This means that a
current controller sampling time of 400 µs is not possible.
● With CU parameter p0092 = 1, the sampling times are pre-assigned so that isochronous
operation with a controller is possible.
Scenario 2: Current and speed controller cycle is not known
This procedure is especially suitable for devices in chassis format, as the current and speed
controller cycle also depends on the relevant device type.
1. To determine which cycle clocks are set in the SINAMICS drive unit after a project has been
downloaded, first set reliable values for the cycle clocks in HW Config (see table
"Recommended cycle clock settings in HW Config").
2. Use the "Download project to target system" menu command to download the
parameterization.
Commissioning (software)
7.5 Additional information on configuring the SINAMICS Integrated
SIMOTION D4x5-2
228
Commissioning and Hardware Installation Manual, 03/2018, A5E33441636B
