Siemens SINAMICS S120 Function Manual page 849

Pulse frequencies and current controller sampling times:
● The current controller sampling times of the drives and infeeds must be synchronous to
Line Modules:
● For Active Line Modules (ALM) and Smart Line Modules (SLM) in booksize format the
● For Active Line Modules (ALM) and Smart Line Modules (SLM) in chassis format the
● For Basic Line Modules (BLM) the only current controller sampling time which can be set
Motor Modules:
● For Single Motor Modules in booksize format, a current controller sampling time of
● For Double Motor Modules in booksize format, a current controller sampling time of
● For Motor Modules in chassis format, a current controller sampling time of minimum 125
● For Motor Modules in blocksize format, a current controller sampling time of 62.5 µs,
● For the HLA module, a current controller sampling time of minimum 62.5 µs can be set
Servo control / HLA control
● A current controller sampling time between 31.25 µs and 250 µs can be set for servo
● For HLA drives, a current controller sampling time between 62.5 µs and 250 µs can be
● The fastest sampling time for a drive object in servo control or HLA is as follows:
Drive functions
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
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.
only current controller sampling time which can be set is 125 µs or 250 µs.
permitted current controller sampling time depends on the relevant module. The current
controller sampling time can either only be set to 250 µs or the current controller sampling
time selected can be 400 µs or 375 µs (375 µs for p0092 = 1).
is 2000 µs (chassis format) or 250 µs (booksize format).
minimum 31.25 µs can be set (31.25 µs ≤ p0115[0] ≤ 500 µs).
minimum 62.5 µs can be set (62.5 µs ≤ p0115[0] ≤ 500 µs).
µs can be set (125 µs ≤ p0115[0] ≤ 500 µs).
125 µs, 250 µs or 500 µs can be set (only pulse frequencies in multiples of 2 kHz are
permissible).
(62.5 µs ≤ p0115[0] ≤ 250 µs).
drives (31.25 µs ≤ p0115[0] ≤ 250 µs).
set (62.5 µs ≤ p0115[0] ≤ 250 µs).
– T = 31.25 µs: Exactly one drive object in servo control
i
– T = 62.5 µs: Max. three drive objects in servo control or HLA
i
– T = 125 µs: Max. six drive objects in servo control or HLA
i
Basic information about the drive system
13.10 System rules, sampling times and DRIVE-CLiQ wiring
849