Siemens G130 List Manual page 87

p0115[0] Sampling time for supplementary functions / t_samp suppl_fct
CU_G130_PN, Can be changed: C1(3)
CU_G150_PN,
Data type: FloatingPoint32
CU_G130_DP,
P-Group: Closed-loop control
CU_G150_DP
Not for motor type: -
Min
0.00 [µs]
Description: Sets the basic sampling time for supplementary functions (DCC, free function blocks) on this object.
Only setting values that are an integer multiple of 125 µs are permissible.
Index: [0] = Basic sampl time
p0115[0...6] Sampling times for internal control loops / t_sample int ctrl
VECTOR_G Can be changed: C1(3)
Data type: FloatingPoint32
P-Group: Closed-loop control
Not for motor type: -
Min
0.00 [µs]
Description: Sets the sampling times for the control loops.
The default setting is made using p0112 and can only be individually changed for p0112 = 0 (expert).
Recommendation: When changing the sampling times of the current and speed controllers (also refer to p0115), then we recommend
that after exiting commissioning (p0009 = 0) the controller settings are re-calculated using p0340 = 4.
When adjusting the current controller sampling time, it is recommended to use values that are an integer multiple of
6.25 µs. The sampling times of analog or digital inputs/outputs (see p0799, p4099) should be set to an integer
multiple of the current controller sampling time.
If the current controller sampling time is to be reduced with respect to the default setting (e.g. < 250 µs), then it is
recommended that the motor data identification (standstill measurement) is executed beforehand, in order to avoid a
thermal overload of the power unit as a result of high pulse frequencies (p1800).
Index: [0] = Current controller
[1] = Speed controller
[2] = Flux controller
[3] = Setpoint channel
[4] = Position controller
[5] = Positioning
[6] = Technology controller
Dependency: Depending on the number and type of vector drives, the sampling times are preset differently.
The sampling times can only be separately set if p0112 is 0 (expert). If a sampling time is modified in the expert
mode, then all of the sampling times with higher indices are automatically changed in the same ratio as the sampling
time itself was changed. Slower time slices are only taken if the calculated sampling time is also permitted. Upper
limit is 8 ms.
Higher-level controls must be calculated in integral ratios to lower-level controls (e.g. p0115[1] = N * p0115[0]; where
N is an integer number). The sampling time of the speed controller (p0115[1]) can have as a maximum a value of
800% of the current controller sampling time (p0115[0]).
The sampling times for setpoint channel (p0115[3]), position controller (p0115[4]), positioning (p0115[5]) and
technology controller (p0115[6]) must have at least 2x the value of the current controller sampling time (p0115[0]).
The sampling time of the current controller p0115[0] and pulse frequency p1800 are checked at each parameter
download, and when necessary changed, if, for p0092 = 1, the current controller sampling time is not an integral
multiple of 125 µs or if p0112 is set > 1. For p0092 = 0, the check with p0112 = 0 (= expert) can be deactivated.
Refer to: r0110, r0111, p0112
SINAMICS G130/G150
List Manual (LH2), 07/2016, A5E03263479A
Calculated: -
Dyn. index: -
Unit group: -
Scaling: -
Max
16000.00 [µs]
Calculated: -
Dyn. index: -
Unit group: -
Scaling: -
Max
16000.00 [µs]
2 Parameters
2.2 List of parameters
Access level: 3
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
4000.00 [µs]
Access level: 3
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
[0] 250.00 [µs]
[1] 1000.00 [µs]
[2] 1000.00 [µs]
[3] 1000.00 [µs]
[4] 2000.00 [µs]
[5] 4000.00 [µs]
[6] 4000.00 [µs]
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