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Parallel inverters on a three-phase configuration
Step 1:
Ensure that the following requirements are met before commissioning:
• Check that all inverters in the system are wired correctly.
• Make sure that circuit breakers on the AC input side are open and that all inverter’s neutral wires are connected
together.
Step 2:
Turn on each unit to enter the configuration mode and set item 28 to
P1
,
P2
and
P3
sequentially. Next,
disconnect every inverter by switching the power button to its
OFF
position.
NOTE:
Turning the inverter off is required for the setting in item 28 to take effect. Otherwise, the programming of this
menu won´t be allowed.
Step 3:
When done, proceed to turn the inverters back on sequentially. The following screens will be displayed.
LCD display on L1-phase unit
LCD display on L2-phase unit
LCD display on L3-phase unit
Step 4:
Switch on the circuit breaker(s) of the AC input source. Once all 3 phases are activated and all inverters detect
the phases correctly, they will operate normally and show the information below on their displays. If not the case, then
the icon will flash, preventing the inverter from operating in the AC/line mode.
Step 5:
If there are no more faults or alarms, it means that the three-phase system is successfully installed and
commissioned.
Step 6:
Turn on the AC loads by switching on the corresponding breakers. This system will start providing power to the
loads.
Note 1:
Make sure to have all the inverters running before turning on the breakers to prevent an overload.
Note 2:
Transfer time applies for this application. Power to critical devices can be interrupted if they don´t support this
transfer time.
LCD display on L1-phase unit
LCD display on L2-phase unit
LCD display on L3-phase unit
Содержание Fusion FIO-F11K12P
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