Functions In Detail - Mitsubishi Electric MELSEC iQ-R Series User Manual

Section 3 NAME AND FUNCTION OF EACH PART
3.4

Functions in detail

3.4.1 Measuring function
(1) Measured items
Measured items and measured ranges are described as follows.
Each measured item is stored in the buffer memory at every measuring cycle.
Refer to "5.2.12" for measuring cycle, and refer to "4.2.1(7)" for measuring cycle of harmonic current and
harmonic voltage.
Current
Current demand
* The average of fluctuation for the set
period of current demand time is
indicated.
Harmonic current
*1: If phase wire system is set to single-phase 2-wire, measurement will not be taken.
*2: The order of harmonic as follows.
RMS: 1st, 3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, 19th
Distortion: 3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, 19th
Table 3.4.1-1 List of Measured items (1/2)
Measured items
*2
Details
Phase 1 current
Phase 2 current
*1
Phase 3 current
*1
Average current
Phase 1 current demand
Phase 2 current demand
Phase 3 current demand
Max. value
Min. value
Date of max. value occurrence
Date of min. value occurrence
Phase 1 harmonic current (n th)
Phase 1 harmonic current (Total)
Phase 3 harmonic current (n th)
Phase 3 harmonic current (Total)
Phase 1 current harmonic distortion (n th)
Phase 1 current harmonic distortion (Total)
Phase 3 current harmonic distortion (n th)
Phase 3 current harmonic distortion (Total)
17
RE81WH
*1
*1
*1
*1
*1
*1