Rules On The Sampling Times; Rules When Setting The Sampling Times - Siemens Sinamics S120 Comissioning Manual

● An active Voltage Sensing Module (VSM) must be assigned to each Active Line Module
(ALM) in the parallel connection. A violation of this rule causes alarm F05061 to be
issued.
● When using Smart Line Modules (SLM) an active Voltage Sensing Module (VSM) must
be assigned to at least one Smart Line Module (SLM) in the parallel connection. A
violation of this rule causes fault F05061 to be issued.
A.4.3

Rules on the sampling times

A.4.3.1

Rules when setting the sampling times

The following rules apply when setting the sampling times:
General rules
● There are a maximum 2 possible cycle levels on the Control Unit, where the lowest
sampling times are not integer multiples with respect to one another. All sampling times
set must be an integer multiple of the smallest sampling time from one of these two cycle
levels.
This setting is permitted.
Additional sampling times must be integer multiples of 250 µs or 455 µs.
Terminal Board, Control Unit
● For the digital and analog inputs/outputs of these components the minimum sampling
time (p0799, p4099, p0115) set must be 125 µs.
Pulse frequencies and current controller sampling times:
● The current controller sampling times of the drives and infeeds must be synchronous to
the set pulse frequency of the power unit (see also p1800 in the SINAMICS S120/S150
Lists Manual). Any increase in the pulse frequency requires a reduction in the sampling
times and increases the derating in the power unit.
Line Modules
● For Active Line Modules (ALM) and Smart Line Modules (SLM) in booksize format the
only current controller sampling time which can be set is 125 µs or 250 µs.
● For Basic Line Modules (BLM), the only current controller sampling time that can be set is
250 µs (booksize format).
Motor Modules
● For Single Motor Modules in booksize format, a current controller sampling time of
minimum 31.25 µs can be set (31.25 µs ≤ p0115[0] ≤ 500 µs).
● For Double Motor Modules in booksize format, a current controller sampling time of
minimum 62.5 µs can be set (62.5 µs ≤ p0115[0] ≤ 500 µs).
Commissioning with Startdrive
Commissioning Manual, (IH3), 07/2016, 6SL3097-4AA10-0BP0
A.4 System rules, sampling times and DRIVE-CLiQ wiring
Appendix
207