Amplitude loggers
The control program has two amplitude loggers. Depending on the setting of parameter
36.8, the loggers are active continuously or only when the drive is modulating.
For amplitude logger 2, the user can select a signal to be sampled at 200 ms intervals,
and specify a value that corresponds to 100%. The collected samples are sorted into
10 read-only parameters according to their amplitude. Each parameter represents an
amplitude range 10 percentage points wide, and displays the percentage of the collected
samples that have fallen within that range. Note that the lowest range also contains the
negative values (if any), while the highest range also contains the values above 100%.
<10%
10…20%
20…30%
30…40%
40…50%
50…60%
60…70%
70…80%
80…90%
>90%
Amplitude ranges
(parameters 36.40...36.49)
Percentage
of samples
Amplitude logger 1 is fixed to monitor motor current, and cannot be reset. With amplitude
logger 1, 100% corresponds to the maximum output current of the drive (I
max
, as given
in the hardware manual). The distribution of collected samples is shown by parameters
36.20…36.29.
Settings and diagnostics
Parameter group: 36 Load analyzer (page 367).
Program features 101
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