GE Digital Energy SitePro 400 VAC CESeries 7 Operating Manual page 68

For parallel systems perform the following procedure on each unit,
starting from unit no. 1.
1. If not already supplied (separate mains inputs), switch-ON the mains power to the rectifier
input.
2. Close the input switch Q4 – As for the single version.
3. Battery coupling to DC link – As for the single version.
When finished, all the rectifiers are operating and charging the battery.
There is no alarm condition.
Verify on the display screens (metering mode) the right DC voltage of each unit.
4. Close the output switch Q1 on each unit.
After closing the last Q1 of the system, the bypass will automatically be switched ON and the
parallel bus will be supplied by the mains voltage.
The LCD panel (main screen) of each unit must indicate the status "LOAD ON BYPASS".
On each unit LED 2, 7, 8, 9 are ON and "service check" is OFF.
(In case the "load off" has been previously activated, a reset is needed to enable the bypass).
5. Now open the maintenance switch Q2 on each unit.
LED 9 turns OFF when opening the last Q2.
Now the control panel of each unit should indicate the following situation:
LED 1, 2, 3, 4b, 7 and 8 light up.
LED 4a, 5, 6 and 9 are OFF.
LED "service check" is OFF.
6. Inverter start.
Press the key "ON" on the control panel of each unit.
Inverters start up (LED 5 blinks).
Once the inverter output voltage is OK on each unit, LED 5 turns ON.
The load will be automatically transferred from utility to the inverters as soon as sufficient
capacity on the inverter side is achieved.
The LCD panel of each unit must display the main screen, indicating the status "LOAD ON
INVERTER" and the value of the battery reserve.
LEDs 1, 2, 3, 4b, 5, 6, 8 are ON and LEDs 4a, 7, 9 are OFF on each unit.
Verify on display screen that the load should be equally shared between the parallel units.
NOTE !
The Battery must be charged for at least 10 hours, in order to ensure the full
backup runtime in case of a Mains Failure.
Modifications reserved
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Operatine Manual SitePro 60 kVA