Panasonic ELC500 User Manual page 112

5.6.6.2 Demand Alarm Setup
Set items related to demand alarm.
Select demand type and double-click a line from No.1 to No.8.
Set items related to demand alarm.
[Terms for Demand Function]
Item
Present demand
Target power
Control demand
Limit control demand
Reference demand
Estimated demand
Adjustment demand
Alarm mask time
[Alarm generation conditions]
Alarm type
Alarm 1
Alarm 2
Alarm 3
Ex.) Alarm mask time: 10 min.
Present demand exceeds Reference demand from 10:00 (period start) to 10:05.
→ No alarm
Present demand exceeds Reference demand at 10:10.
→ Alarm 1
Note
It reset alarm every time when change the period.
It doesn't hold the alarm generation to the next period.
It doesn't generate alarm even if it satisfies the alarm generation conditions during alarm
mask time.
Integrated value from start the period to the elapsed time
Target value to monitor demand value so as not to exceed.
Integrated value that can be suppressed under an unnoticeable.
Integrated value that can be suppressed but it effects work.
Integrated value that increases in proportion to elapsed time within the
period. Target power is the max. value.
Integrated value at the end of the period that is estimated by power usage
from the start of the period to the elapsed time.
Integrated value that needs to be cut off in order to make the estimated
demand to same as the target power at the end of the period.
Time to avoid false alarm due to error at starting the period
When present demand exceeds the target demand.
Under the alarm 1 generation conditions, when the adjustment demand
exceeds the control demand.
Under the alarm 2 generation conditions, when the adjustment demand
exceeds the limit control demand.
Description
Generation conditions
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ELC500 Control unit