Table 5-3 Vector drive
Example Settings
Vector drive (chassis format)
Current controller cycle = 375 µs
Speed controller cycle = 1.5 ms
T
I
= T
O
= At least 375 µs
T
DP
= 1.5 ms (... or 3 ms, or 6 ms ....)
T
MAPC
= T
DP
For the SIMOTION D410, a minimum of 2 ms is recommended for
the servo cycle.
For this reason, set T
MAPC
= T
DP
= 3 ms or higher.
Vector drive (PM340)
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 (among other settings).
In a 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 cycles with an integer multiple of 125 µs are
possible (instead of 400 µs, so 375 µs or 500 µs, for example).
● The PROFIBUS Integrated of a SIMOTION D410 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 preassigned in a way that enables
isochronous operation with a control system.
Output cams / measuring inputs with vector drives
With vector drives, the cycle clock ratios (current controller cycle clock, speed controller cycle
clock, sampling time of the inputs/outputs, etc.) depend on the number of vector drives, or with
chassis units also on the device type used.
Note the information in Section Current controller cycle clocks <> 125 µs / use of output cams
and measuring inputs (Page 107).
Additional references
Additional information on quantity structures and cycle clock settings can be found in the
SINAMICS S120
Function Manual.
Commissioning (software)
5.4 Additional information on configuring the SINAMICS Integrated
SIMOTION D410
Commissioning Manual, 04/2014 101