Modifications reserved
Page 64/79
OPM_SGS_USM_M22_M30_2US_V010.doc
User Manual
SG Series 225 & 300 UL S2
4. Repeat the procedures 2 and 3 for each other Unit
.
•
The
Rectifiers
will start automatically and at the closure of
UPS output switch Q1
of the
last Unit
, the
output will be supplied parallel from
Automatic Bypass
and
Manual Bypass Q2
of all UPS units.
•
LED 8 (Automatic Bypass ON)
and
LED 9
(Manual Bypass Q2 ON)
are lit.
Synoptic Diagram of first unit
Synoptic Diagram of other units
5. Open the Manual Bypass Switch Q2 (Pos. O) on all Units
.
•
The
Load
is supplied by the
Utility
through the
Automatic Bypass
of all
Units.
•
LED 8 (Automatic Bypass ON)
is lit and
LED 9
(Manual Bypass Q2 ON)
turns OFF.
The
Synoptic Diagram
, on all UPS units, must display the status
“
LOAD SUPPLIED BY AUTOMATIC BYPASS
”
.
Synoptic Diagram of first unit
Synoptic Diagram of other units
6. Insert the Inverter by pressing the “Inverter ON” ( I ) key on first unit.
•
Soft-start of
Inverter
, indicated with blinking
LED 5 (Inverter available)
.
•
At the end of Soft-start the
LED 5 (Inverter available)
remains lit.
•
In case of sufficient output power, the output will transfer to
Inverter
.
Synoptic Diagram of first unit
Synoptic Diagram of other units
7. Insert the Inverter by pressing the
“
Inverter ON
”
( I ) key on all other units
.
Do not start the next
Inverter
until the sequence of the previous one ends.
•
Soft-start of
Inverter
, indicated with blinking
LED 5 (Inverter available)
.
•
At the end of Soft-start the
LED 5 (Inverter available)
remains lit.
•
As soon as the output power of the
Inverters
is sufficient to supply the
Load
, the output of the units
with running
Inverter
will transfer to
Inverter
.
•
LED Alarm
turn Off and the
LED Operation
must be lit.
The
Synoptic Diagram
, on all UPS units, must display the status
“
LOAD SUPPLIED BY INVERTER
”
.
Synoptic Diagram of first unit
Synoptic Diagram of other units
END OF PROCEDURE
