enphase IQ System Controller 1 Technical Brief page 10

grid, and the grid imports/exports should be monitored. Note that the arrows should
point toward the IQ System Controller.
•
Connect the generator extension cord to the generator. Insert the male cord plug into
the generator's receptacle and twist the lock in the plug-in place. If the Gateway is
powered from the AC/IQ Combiner, use the multitap and wire the AC/IQ Combiner to
the multitap so that the Gateway can be powered on when the generator is on.
9. Turn on the IQ Battery breaker inside the IQ System Controller and turn the Enphase shutdown
switch to the ON position
•
Turn on the battery breaker inside the IQ System Controller. Figures 2, 3, and
location of the battery breaker labeled as Encharge or IQ Battery. This step is needed
to charge the battery.
•
If there is an Enphase RSD switch, make sure it is turned on.
10. Turn on the generator.
•
Check oil and fuel levels.
•
Turn on the fuel valve on the generator.
•
Move the choke to the CLOSED position.
•
Turn on the engine switch on the generator to start the generator electrically.
•
Turn on the engine switch on the generator and pull the cord for the recoil/pull start
generator.
•
Move the choke to the OPEN position.
•
Verify that line voltage at generator terminals and connection point to the
IQ System Controller is approximately 240 V.
11. Observe the system recovery and make sure the following steps are performed.
NOTE: The installer/electrician can use the content in this section to verify system
behavior. No action from the installer/electrician is required as part of this section.
•
Once the generator starts, the IQ System Controller is powered up from the generator.
•
Verify the system's functioning by opening the AC/IQ Combiner containing the Gateway
and ensuring the four LEDs are blinking red, indicating that the IQ Gateway is powered and
booting up.
•
Once the Gateway has finished booting up, the Gateway will connect to the
IQ System Controller 1 or 2 via Zigbee or to the IQ System Controller 3/3G via control
cable.
•
The Gateway will try to connect to the IQ Batteries via Zigbee/Control bus but cannot
as the batteries will be powered down due to extremely low SoC (<2%). After a
maximum of 15 minutes (5 minutes of IQ Gateway to boot and 10 minutes for the
Zigbee/Control bus timeout for IQ Batteries), the IQ Gateway will command the
IQ System Controller to close the IQ Battery relay and IQ Combiner relay. You can hear
an audible click of the relay's closing. The LEDs on all the IQ Battery units will start
blinking red, indicating it is powered on via AC.
12. Turn on the right number of battery DC switches.
•
For IQ Battery 3 (ENCHARGE-3-1P-NA) or 3T (ENCHARGE-3T-1P-NA) and IQ Battery 10
(ENCHARGE-10-1P-NA) or 10T (ENCHARGE-10T-1P-NA), turn on the right number of DC
switches, as described in
10
State of charge recovery for an Enphase Energy System
NOTE: If this step is delayed, all the IQ Gateway LEDs may no longer be blinking
red; however, at least one LED will be lit with green or red color.
Table 3.
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June 2024
TEB-00084-2.0