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2. Close the UPS Output Switch Q1 (Pos. I).
•
The Load is supplied by the Utility through the Automatic Bypass.
•
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.
The Synoptic Diagram must display the status "LOAD
SUPPLIED BY AUTOMATIC BYPASS".
3. Connect the Battery to the UPS by closing (Pos. I) the External Battery Switch or Fuses.
Attention: to check the right DC polarities on both side of the switch/fuse holder!
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.
• Soft-start of Inverter indicated with blinking LED 5 (Inverter available).
• At the end of Soft-start the LED 5 (Inverter available) remains lit.
• Automatic transfer from Automatic Bypass to Inverter.
• UPS output LED indicates Load on Inverter.
• LED Alarm turn Off and the LED Operation must be lit.
The Synoptic Diagram must display the status "LOAD
SUPPLIED BY INVERTER".
5. Load supply.
SG Series 225 & 300 is now running, supplying power to the output.
Insert the loads one by one to the output of the UPS.
Check the output current value of L1, L2 and L3 and check for correct load balance.
6. Operation mode selection.
SG Series 225 & 300 is delivered normally selected for permanent VFI operation.
eBoost™ Operation Mode can be enabled if available, and the eBoost START time & eBoost STOP time can
be programmed for each day of the week (see Section 6.4 SETUP / eBoost).
NOTE !
The Battery must be charged for at least 10 hours, in order to ensure the full backup
runtime in case of a Utility Failure.
Modifications reserved
OPM_SGS_USM_M22_M30_2US_V010.doc
END OF PROCEDURE
Page 48/79
User Manual SG Series 225 & 300 UL S2
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