Modifications reserved
Page 83/103
OPM_LPS_33E_60K_M12_2GB_V010.doc
Operating Manual
LP 33 Series 60-80-100-120 kVA / S2
2. Insert the external battery fuses on each unit
.
In case of GE battery cabinet: insert the fuses in their place and close fully the cover of fuse-holder by
using correctly the handle.
DANGER !
Before to perform this operation, check the right DC polarities on both side of the
switch/fuse holder!
3. Close the output switch Q1 (Pos. I) on all UPS units.
When the last
Q1
will be closed the output will be supplied by the
mains through all
automatic bypass
.
The
synoptic diagram
, on all UPS units, must display the status
“
LOAD SUPPLIED BY AUTOMATIC BYPASS
”
.
`
Home\Meter
BOOSTER
f :
50.0
Hz
L1 :
397
V
L2 :
395
V
L3 :
393
V
Vp :
400
V
Vn :
400
V
Verify on all UPS units, selecting the screen
METERING/BOOSTER/
Vp
and
Vn
, that the booster voltage has reached about
400 Vdc
.
4. Insert the inverter by pressing
“
Inverter ON
”
( I ) key on first UPS unit
.
In case of sufficient output power, the output will transfer to
Inverter
.
LED Alarm
turn Off and the
LED Operation
must be is lit.
The
synoptic diagram
, on first UPS unit, must display the status
“
LOAD SUPPLIED BY INVERTER
”
.
5. Insert the inverter by pressing
“
Inverter ON
”
( I ) key on all other UPS units
.
Do not start the next
inverter
until the sequence of the previous one ends.
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
”
.
6. Load
supply.
LP 33 Series Parallel System
is now running, supplying power to the output.
Insert the
loads
one by one to the output of the
LP 33 Series Parallel System
.
Check the output current value of
L1
,
L2
and
L3
and check for correct load balance.
END OF PROCEDURE
NOTE !
Even if the UPS is delivered with the
battery
fully charged, they could be partially
discharged during transportation or storage.
It is recommended to recharge the battery during at least 10 hours in order to
provide the complete
battery
energy stored to the load in the event of
mains failur
e.