Sungrow Logger1000B User Manual page 76

8 Grid Dispatching Function
table 8-4 Parameter description
Parameter
Communication abnormality
output (%)
Control method
Select energy meter*
Wiring mode*
Start after communication
recovery *
Start delay after
communication recovery *
66
Description
Communication is abnormal, and specified dispatch
output value is delivered.
Open-loop control：At the start time, the locally
configured active instruction is sent to the power output
port of the inverter, thereby implementing active power
control.
Closed-loop control:
• In case no Smart Energy Meter is selected, at the
beginning time, the active instruction configured
locally is used as target value, and active power
compensation ratio is calculated and sent to the
power output port of the inverter. Generally, this
strategy is used for fast and accurate active power
regulation.
• In case a Smart Energy Meter is selected, at the
beginning time, active instruction configured locally
is used as target value, active power of the meter
needs to be collected and used as input parameter,
and active power compensation ratio is calculated
and sent to the power output port of the inverter.
Generally, this strategy is used for anti-backflow or
avoiding zero power feed-in.
Unselected
Select Smart Energy Meter involved in power regulation
Direct connection: One Logger1000 is connected to all
inverters, where all the inverters must be string inverters
or central inverters.
Cascade connection: Multiple Logger1000 are
cascaded, and this Logger1000 is used as the host.
Enable: After the Smart Energy Meter recovers normal
communication, the Logger1000 will deliver start
instruction to the inverter.
Disable: After the Smart Energy Meter recovers normal
communication, the Logger1000 will not deliver start
instruction to the inverter.
After the Smart Energy Meter recovers normal
communication, the Logger1000 will deliver start
instruction to the inverter.
Parameter range: 0~120s
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