Features - Omron K7DD User Manual

1 Overview
1-2

Features

The K7DD has three features to accurately detect errors in the rotation mechanism.
High-Speed Sensing
The Unit can accurately capture the condition of the rotation mechanism by sensing the voltage and
current at a high sampling rate of 400 kHz.
High-Speed Parameter Conversion
The sensed voltage or current can be converted to various feature parameters at a high speed of 50 ms
to track the behavior of the rotation mechanism.
Parallel Processing of High-Speed Sensing and High-Speed
Parameter Conversion (Ensuring Sensing Continuity)
Performing high-speed sampling sensing and conversion to feature parameters in parallel realizes
continuous monitoring of a large number of features. This ensures the occurrence of monitored errors
can be detected without fail.
 Conversion to Feature Parameters According to Wiring Method
The Unit supports 3-phase 3-wire
(3P3W2M) and 3-phase 4-wire (3P4W)
power connection methods, thus
accommodating a variety of
applications. It is also possible to
measure only current, regardless of the
wiring method, although the feature
parameters are limited.
The measured voltage and current
values can be converted to 17 different
feature parameters. Parameters that
exist for each power supply phase,
such as R.M.S. values, are converted
for all phases. Harmonics are also
calculated up to 63rd order per phase.
All together, more than 400 feature
parameters can be converted at high
speed.
The voltage and current measurement
results can be converted to such large
numbers of parameters in 50 ms
cycles.
1 - 4
Convertible parameters
R.M.S. value
Fundamental
amplitude
Converted
Waveform peak+
from voltage
measurement
Waveform peak-
result
Unbalance
Total harmonic
distortion
R.M.S. value
Fundamental
amplitude
Waveform peak+
Converted
Waveform peak-
from current
measurement
Unbalance
result
Harmonic current
Total harmonic
distortion
Frequency
Enabled
Converted from
measurement
Disabled
results of
Apparent power
voltage and
current
Power factor
Power Line Data Generator User's Manual (N233)
3-phase 3-phase Only
3-wire 4-wire current
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