9440300990 13-7
DECS-250 Metering
Grid Code Mode: These eight indicators change from gray to green to indicate various grid code status.
Setpoints: Five status fields display the active setpoints for AVR mode, FCR mode, FVR mode, var
mode, and Power Factor mode. These active setpoints, represented by a yellow font, are not to be
confused with metered analog values which are represented by a green font throughout
BESTCOMSPlus. For details on operating setpoint settings, see the Regulation chapter.
Setpoint Fine Adjust: Clicking the Raise button increases the active operating setpoint. Clicking the
Lower button decreases the active operating setpoint. The raise and lower increment is directly
proportional to the adjustment range and inversely proportional to the traverse rate.
Setpoint Return: Clicking the Return button changes the active operating setpoint back to the original
value before it was adjusted.
Setpoint Limits: The Upper indicator changes from gray to green when the upper setpoint limit threshold
has been exceeded. The Lower indicator changes from gray to green when the lower setpoint limit
threshold has been exceeded.
Alarm Status: The Alarm Status indicator changes from gray to green when there is an active alarm.
PSS Status: The PSS Status indicator changes from gray to green when the PSS is active.
Null Balance: The Null Balance indicator changes from gray to green when the setpoint of the inactive
operating modes (AVR, FCR, FVR, var, and PF) match the setpoint of the active mode.
Virtual Switches: These buttons control the open or closed status of the six virtual switches. Clicking the
Open button sets the switch to the open position and changes the switch indicator to gray. Clicking the
Close button sets the switch to the closed position and changes the switch indicator to red. A dialog will
appear asking if you are sure you want to open or close the switch.
Metering Summary
BESTCOMSPlus Navigation Path: Metering Explorer, Summary
HMI Navigation Path: Not available via HMI
All of the metering values displayed on the individual, previously-described metering screens are
consolidated on the metering summary screen. Primary- and per-unit values are available. Figure 13-12
illustrates the primary-values metering summary screen. The primary- and per-unit metering summary
screens are available only in BESTCOMSPlus.
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