GE 400 User Manual page 68
Sg series 400 & 500 kva / 480vac ul / s2
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2. Close the UPS Output Switch Q1 (Pos. I) on the Unit to reconnect.
•
Rectifier starts automatically, blinking LED 3 (Rectifier ON) indicates Soft-start.
•
At the end of Rectifier Soft-start the LED 3 (Rectifier ON) remains lit.
Synoptic diagram of the unit to reconnect
3. Connect the Battery on the Unit to reconnect by closing (Pos. I) the External Battery Switch or
Fuses.
LED 4b (Charging Battery) should be lit indicating battery charge.
ATTENTION !
Before performing this operation, the LED 3 (Rectifier ON) must remain lit, thus
indicating that the DC-Link has reached floating voltage (540Vdc)!
4. Insert the Inverter by pressing the "Inverter ON" ( I ) key on the Unit to reconnect.
•
The inverter will start up. LED 5 (Inverter available) must be blinking
In a short time, when the Inverter voltage is confirmed, the LED 5 (Inverter available) will stop blinking and
stay fixed lit.
The Load will be automatically shared between the Parallel Units and this Inverter.
•
LED Alarm turn Off and the LED Operation must be lit.
Verify on display screen that the load should be equally shared between the parallel units.
The synoptic diagram, on all UPS units, must display the status "LOAD SUPPLIED BY INVERTER".
Synoptic Diagram of the unit to reconnect
Modifications reserved
OPM_SGS_USM_M40_M50_2US_V010.doc
END OF PROCEDURE
Synoptic diagram of other units
Synoptic Diagram of other units
User Manual SG Series 400 & 500 UL S2
Page 68/79
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