IT
ALIANO
ENGLISH
28
IOMMASGPXX01-GB_01
10-40 kVA
ACCESS TO CONTROLS
AND COMMUNICATION INTERFACES
5
5.2 FUNCTIONS OF THE SWITCHES.
Input switch Q2.
The input switch provides the primary power supply to the UPS.
In normal operating conditions it should be in position
1 ON
.
The position
0 OFF
will cause the batteries to discharge.
In a configuration with separate mains, the switch only interrupts the rectifier power supply.
Output disconnecting switch Q6.
The disconnecting switch Q6 has three positions with the following functions:
r
Position 1 “UPS”
UIJTJTUIFQPTJUJPOGPSOPSNBMPQFSBUJPOPGUIF614GPSBDPOUJOVPVTQPXFSTVQQMZUPUIFMPBE
r
Position 2 “MANUAL BY-PASS”
: This position should only be selected for ordinary or extraordinary maintenance
PQFSBUJPOT NBOVBMCZQBTTUIFMPBEJTDPOOFDUFEEJSFDUMZUPUIFNBJOTQPXFSTVQQMZ*UNBZCFVTFEJOUIFFWFOU
of a UPS failure to power applications from the auxiliary mains while awaiting the intervention of technical person-
OFM
r
Position 0 “OFF”
: This completely isolates the UPS output by removing the voltage from the applications in any
operating condition. It is used for the emergency shutdown of the system (internal E.S.D.).
Battery switch Q1 (UPS batteries).
When closed, this switch connects the batteries of the UPS to the DC/DC converter stage to power the inverter in
the event of a mains failure. The normal operating position is
1
(closed).
Summary of Contents for Masterys Green Power
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