Siemens SINAMICS S150 NEMA, Руководство по эксплуатации

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Functions, monitoring and protective functions
9.3 Drive functions
Enclosed Drives
592
Operating Instructions, 12/2018, A5E36652151A
Note
Suppression of zero mark alarms with active hardware filter
The zero mark alarms F3x100, F3x101 and F3x131
1)
, that are already output for a zero
mark with a width of 1/4 encoder pulse at half n_max speed, are suppressed when the
hardware filter is activated.
1)
x = encoder number (x = 1, 2 or 3)
Effect
The influence of the filter time on the maximum possible speed can be calculated as follows:
n_max [rpm] = 60 / (p0408 x 2 x r0452)
Here, p0408 is the pulse number of the rotary encoder.
Example
Specifications:
● p0408 = 2048
● r0452 = 10.24 [ μ s]
n_max is then calculated as follows:
● n_max = 60 / (2048 x 2 x 10.24 x 10
-6
) = 1430 [rpm]
With this filter time, the motor can be operated up to a maximum of 1430 rpm.
9.3.25.6 Edge evaluation of the zero mark
This function is suitable for encoders, where the zero mark ≥ 1 pulse wide. In this particular
case, errors would otherwise occur as a result of the edge detection of the zero mark.
For a positive direction of rotation, the positive edge of the zero mark is evaluated and for a
negative direction of rotation, the negative edge. As a consequence, for encoders where the
zero mark is wider than one pulse, it is possible to parameterize them with equidistant zero
marks (p0404.12 = 1), i.e. the zero mark checks (F3x100, F3x101
1)
) are activated.
Commissioning
The "Edge evaluation of the zero mark" is activated with p0437.1 = 1.