GE DMC490 Software Configuration Manual page 29

Charging Limit Yes means that the storage local controller provides the
Feedback maximum value of discharging power for the DMC490 MGC to
read. No means that the value read by the DMC490 MGC is
disregarded.
For storage devices we have maximum charging power and
maximum discharging power; these are settings and fixed
values. However, for particular storage technologies, these
maximum powers are not fixed; they depend on the state of
charge (SOC). For example, we have a setting of 100 kW for
maximum discharging power but if SOC is below a certain limit
we cannot approach this maximum 100-kW limit. For these
particular storage devices, the maximum charging or
discharging powers are declared by their local controllers;
they have mathematical functions that calculate the
maximum power depending on the value of SOC; these values
are published so that an external device like the DMC490 can
read them.
Given this, the DMC490 has two related settings for storage
devices: Charging Limit Feedback and Discharging Limit
Feedback. For example, when the Charging Limit Feedback is
Yes, it means that the storage local controller provides the
maximum value of charging power (this is read by the
DMC490 and used in the optimization calculation). In this case,
the value read by the DMC490 is replaced with the maximum
value already set by the user. In other words, setting value for
maximum charging power is overwritten based on the value
provided by the storage local controller and read by the
DMC490.
When the Charging Limit Feedback is set to No, then the value
read by the DMC490 is disregarded.
DMC490 Configuration
False False
True
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