List Of Functions - Mitsubishi Electric MELSEC iQ-R Series User Manual

Section 3 NAME AND FUNCTION OF EACH PART
3.3

List of functions

Functions of RE81WH are provided in "Table 3.3-1 List of Functions".
No. Function
1 Measurement
2 Periodic electric energy
3 Hold max./min. values
Upper/lower limit alarm
4
monitoring
5 Test
6 Integrated value set
7 Output of waveform data
Table 3.3-1 List of Functions
Descriptions
It measures current, current demand, voltage, electric
power, electric power demand, Reactive power, apparent
power, power factor,
(consumption, regeneration),
(consumption lag), harmonic current, current harmonic
distortion, harmonic voltage, voltage harmonic distortion,
and sequentially stores the records into a buffer memory.
The electric energy only for a period of time when a
certain output signal is ON will be stored in the buffer
memory.
Periodic energy 1 and 2 can be measured independently.
For current demand, voltage, electric power demand, and
power factor, each maximum/minimum values and
date/time of occurrence are stored.
Among current demand, voltage, electric power demand,
and power factor, you can select two measuring items for
which their upper/lower limit can be monitored.
If it exceeds the upper limit or goes below the lower limit,
the specified input signal is turned on.
Parameter setting enables pseudo-storage of the
specified value into the buffer memory, even with non-
existence of input from voltage and current (sensor).
Using this module, you can create a sequence, etc.
Set the integrated value (electric energy (consumption,
regeneration), reactive energy (consumption lag)) to an
arbitrary value.
It is used to clear integrated value.
Stores waveform data of current / voltage of the measured
circuit into the buffer memory.
16
frequency, effective
reactive
RE81WH
Reference
section
energy
energy 3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.4.6
3.4.7