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Plant( Continued )
Batteries
The battery section of the page shows various status characteristics of the battery reserve system
configured for the system. The following items are provided:
Note: When the ES771 mid-string voltage monitors are present and actively measuring battery strings the
independent voltage values will be provided in the battery section. Up to three mid-string voltage readings per
module is obtainable.
Capacity sum of all batteries installed in the system and are able to
from the system using a contactor are considered not to be
online.
The relative state of charge in % of rated battery capacity approximation of the battery
string. Calculation is based upon coulomb counting techniques.
Measured value of the current flowing into or out of all system
The direction of current flow in and out of the batteries. “Yes” when being discharged and
“No” in normal state.
The specific battery model or Generic class of battery configured to be installed in the
system.
The total number of battery strings installed in the system. This value needs to be
configured unless provided in custom default configuration.
Provides the controller calculated reserve time for the batteries installed in the system based
upon discharge data or coulomb counting techniques (hh:mm). Note: may also display “LOW
CURRENT” or “HIGH CURRENT” if the values of current are not consistent with the system
capacity.
Highest battery temperature being measured by the QS871 thermal probes attached in the
system.
Lowest battery temperature being measured by the QS871 thermal probes attached in the
system.
Total number of installed QS871 thermal probes. Up to sixteen QS871 battery probes can be
managed by the controller.
Provides indication that the system is in the Boost state of operation. Possible modes are
OFF, QRCT (Current terminated), MANUAL, and TIMED AUTO.
Total number of installed ES771 Mid-String voltage measurement modules. Up to six ES771
modules can be monitored.
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