7.1 Mul�ple strings and parallel connec�on meters
If there’s several inverters in a plant, also it can use 1pcs meter to realize zero export
func�on.For example,if there’s 3pcs inverter in the system with 1pcs meter.We need
to setup 1pcs inverter as the master and others setup as slaves. And, all of them need
to connect to the meter via RS485. Below is the system diagram and configura�on of
the system.
This applica�on is that when the string inverters work in parallel, there is only one
power grid and one load, and only one meter can be connected to prevent reverse
current, so only this many-to-one an�-reverse current connec�on can be connected.
Pic 7.7 Meter func�on
Exp
_
Mode AVG <<
CT
_
Ratio 0
MFR ACREL
FeedIn 0.0KW <<
Meter OFF <<
Limiter OFF
Shunt OFF
ShuntQTY 1 <<
Generator ON
G.CT 1 <<
G.MFR CHNT
G.FeedIn 0% <<
G.Cap 0.0KW
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