GE Multilin F650 Digital Bay Controller 5-17
5 SETPOINTS 5.2 PRODUCT SETUP
5
Demand measures for power values are as follows:
DEMAND Y Demand state; this is the demand value every minute or every integration period,
depending on the selected setpoints
DEMAND Y MAX Demand maximeter; it stores the Maximum demand value until a demand reset is
produced.
DEMAND Y DATE Date of the Maximum demand value.
Being Y the power considered in each case.
W Three-phase active power
VAR Three-phase reactive power
VA Three-phase apparent power
The maximum demand value is stored in non-volatile memory, and it is not cleared when the relay is turned off. When the
relay is turned on again, the maximum values are updated.
States associated to the demand (“Actual>Metering>Records Status>Demand”) are the following:
Table 5–18: DEMAND ASOCIATED VALUES
Besides the previously considered demand measures, two states are used for the demand control:
DEMAND TRIGGER INPBit type state, Programmable at “setpoints>Relay Configuration>Protection Elements” in
EnerVista 650 Setup software. This signal is used by the Block Interval demand method. If this signal is associated to a
digital input, the time to acknowledge this input is given by setpoints selected for the I/O boards set at Setpoint > Inputs /
outputs > Contact I/O > Board X.
DEMAND RESET INPBit type state, programmable at “setpoints>Relay Configuration>Protection Elements” in
EnerVista 650 Setup software. When this bit is activated, the demand measures are reset. All stored values are reset to
zero (for demand dates, this value represents January 1
st
, 2000).
DEMAND ASOCIATED STATES
DEMAND TRIGGER INP
DEMAND RESET INP
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