Mitsubishi Electric MELSEC iQ-R Series User Manual page 20

Energy measuring module
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Section 3 NAME AND FUNCTION OF EACH PART
(2)
Total, maximum, and minimum values
The following describes how to calculate the maximum, minimum, and total values.
Table 3.4.1-2 How to calculate the maximum, minimum and average values
Item
Phase wire system
Average
single-phase 2-wire
current
single-phase 3-wire
three-phase 3-wire
Average
single-phase 2-wire
voltage
single-phase 3-wire
three-phase 3-wire
Maximum
single-phase 2-wire
current
demand
single-phase 3-wire
three-phase 3-wire
Minimum
single-phase 2-wire
current
demand
single-phase 3-wire
three-phase 3-wire
Maximum
single-phase 2-wire
voltage
single-phase 3-wire
three-phase 3-wire
Minimum
single-phase 2-wire
voltage
single-phase 3-wire
three-phase 3-wire
Average current = 1-phase current
Average current = (1-phase current + 3-phase current) / 2
Average voltage = voltage V12
Average voltage = (voltage V12 + voltage V23) / 2
Maximum value of 1-phase current demand
(The highest value after the max./min. value was reset.)
Highest value of either 1-phase current demand or 3-phase current
demand
(The highest value after the max./min. value was reset.)
Highest value among 1-phase current demand, 2-phase current
demand, or 3-phase current demand
(The highest value after the max./min. value was reset.)
Minimum value of 1-phase current demand
(The lowest value after the max./min. value was reset.)
Lowest value of either 1-phase current demand or 3-phase current
demand
(The lowest value after the max./min. value was reset.)
Lowest value among 1-phase current demand, 2-phase current
demand, or 3-phase current demand
(The lowest value after the max./min. value was reset.)
Highest value of the 1 - 2 line voltage
(The highest value after the max./min. value was reset.)
Highest value of either the 1 - 2 line voltage or the 2 - 3 line voltage
(The highest value after the max./min. value was reset.)
Highest value among the 1 - 2 line voltage, the 2 - 3 line voltage, or
3 - 1 line voltage
(The highest value after the max./min. value was reset.)
Lowest value of the 1 - 2 line voltage
(The lowest value after the max./min. value was reset.)
Lowest value of either the 1 - 2 line voltage or the 2 - 3 line voltage
(The lowest value after the max./min. value was reset.)
Lowest value among the 1 - 2 line voltage, the 2 - 3 line voltage, or
3 - 1 line voltage
(The lowest value after the max./min. value was reset.)
19
Formula
RE81WH

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