Commissioning (software)
6.5 Additional information on configuring the SINAMICS Integrated
SIMOTION D4x5-2
212 Commissioning and Hardware Installation Manual, 02/2012
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.
3. After the download has successfully completed, you will be able to determine all the
current and speed controller clock cycles of the drives from the drives' expert lists.
p0115[0] current controller cycle clock
p0115[1] speed controller cycle clock
4. If required, it is now possible to optimize the T
MAPC
, T
DP
, T
I
, and T
O
times in HW Config
(see procedure for Scenario 1).
Table 6- 5 Recommended cycle clock settings in HW Config
Setting Explanation
T
DP
= 3.0 ms T
DP
= DP cycle time
T
I
= T
O
= 1.5 ms T
I
= time of actual value acquisition
T
O
= time of setpoint transfer
T
MAPC
= 3.0 ms T
MAPC
= master application cycle time
To Next Page
Loading...
Need help?
General
