Panasonic ELC500 User Manual page 122

■IEC demand
It monitors demand at the setting interval. IEC demand is supported only demand calculation.
<Calculation formula> N (min): period
Present demand = Integral power from the start to elapsed time x (60/ N (min))
Sliding block interval demand
It calculates demand by setting interval.
Set interval 1 to 60(min.)(every 1- min). It calculates demand during latest finished interval.
One interval is started every time that set for interval.
Ex.) Period: 15-min.
0 1 2
Fixed block interval demand
It calculates demand by setting interval.
Set interval 1 to 60(min.)(every 1- min). It calculates demand during latest finished interval.
After one interval finishes, the next interval starts.
Ex.) Period: 15-min.
15-min. interval
0
Interval: 1-min
15 min. interval
・・・ ・・・
3 4
Interval: 15-min.
Calculate demand
during 0 to 15 min.
15-min. interval
15
15 16 17 18 19
Calculate demand
during 15 to 30 min.
30 [min.]
114
ELC500 Control unit
Calculate demand during
4 to 19 min
[min.]