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U s e r M a n u a l
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Manuals-non monitoring system(for BD use)-08023
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Disconnecting a Micro Inverter/1T AC
trunk cable
Disconnect all PV circuits from Distribution Panel before any work is done.
Never
disconnect the micro inverters from PV modules while under load.
Step1.
Disconnect the micro inverter from the AC trunk cable and 1T AC trunk
cable. Use an appropriate unlock tool to disconnect the mated connector
pair. Do not force open the connector pair in any way without the
appropriate unlock tool. Damages to the connectors may occur if wrong
tools are used.
Step2.
Completely cover the PV module with an opaque cover.
WARNING
Be aware that DC power/voltage is generated when the PV module is exposed to
light.
Step3.
Using a multi-meter, verify that the DC conductors between the PV
module and the micro inverter carries no current.
Step4.
Disconnect the PV module from the micro inverter. To disconnect the
micro inverter’s DC connectors, please use a DC unlock tool.
Step5.
If GEC grounding was installed, disconnect the grounding wire or washer
from the micro inverter.
Step6.
Remove the micro inverter from the PV racking.
WARNING
Do not leave the T-branch connector on the AC trunk cable exposed for an
extended period of time. If the removed micro inverter will not be replaced
with another micro inverter immediately, connect a sealing cap to the T-branch
connector.
TROUBLESHOOTING
Troubleshooting the Micro Inverter
If the PV system is not operating correctly, use the steps in this section to
troubleshoot the problem. If the issue cannot be corrected using the steps in this
section, please contact an authorized service representative.
Power Status LED Indications
LED Status
Mode
Possible Reason
Action
Solid Green
Generate
Operating normally
No action
Flashing Green Prepare
Initialization, restart
Wait 5 min after the grid power
returns to normal
Flashing Red
Protect
OVP, UVP, OFP, UFP, ISL,
OPP, reading memory
Wait 5 min after the grid power
returns to normal
Solid Red
Danger
GFDI activated
DO NOT touch! Check PV system for
current leakage
○
Off (at
daytime)
Fail
Dead or no PV input
Check module connection; if
connection is ok, then replace MI
COMM Status LED Indications
LED Status
Mode
Possible Reason
Action
Solid Blue
Ready
Operating normally
No action
Flashing Blue
Data
Communicating data
No action
○
Off (at
daytime)
Fail
Dead or no PV input
Check module connection; if
connection is ok, then replace MI
Depending on the position/location of the installed micro inverter, the use of
hand-held mirrors may be needed. If the micro inverter’s Power Status LED is off
or red, then follow these steps:
Step1.
Verify that any upstream AC disconnects, as well as the dedicated circuit
breakers for each AC branch circuit, are functioning properly and are
closed.