SamplexPower STS-30 Owner's Manual - Section 5 |
12 | SAMLEX AMERICA INC.
SECTION 5 |
Installation and Operation
g. Testing of Operation:
(i) Switch OFF both the Inverter and the Grid input
(ii)
Switch ON the AC input power from Grid / Shore Power Cord (RV). As the
time delay has been disabled (As explained at (a) above, if the Generator is
not being used, the time delay should be disabled by changing the position
of the DIP Switch SW1 to ON position), the relay coil will energize as soon as
Grid AC input is switched ON. The Green LED 1 will light up indicating that
the relay has energized. If the Main Panel circuit breakers are switched ON,
the AC loads will be powered by the Grid. The external Battery Charger /
Converter will start charging the batteries.
(iii) Switch ON the Inverter. The Inverter will be in standby condition.
(iv) Switch OFF the AC input power from Grid / Shore Power Cord (RV). The relay
will immediately de-energize and the AC loads will be transferred to the
Inverter.
5.5.3 Switching Between Inverter (Primary Source) and Grid (Backup Source)
In solar application where the batteries / Inverter are the primary source of power, it
may be necessary to have the Grid power as the backup source.
Connection arrangement for above application is shown in Fig 5.4. Some internal
connections will have to be changed as explained below:
ON
LED1
T5
T7
T8
T1
T2
T3
20A
FUSE
BATTERY
SIDE FUSE
FOR
INVERTER
BATTERY SIDE
FUSE FOR
CHARGER
INPUT FROM INVERTER
TO NORMALLY OPEN (NO)
CONTACT TERMINALS T3 & T4
OUTPUT TO
AC BREAKER
PANEL
DISCONNECT AC INPUT OF THE ON-BOARD CONVERTER IN
THE RV FROM THE MAIN BREAKER PANEL AND CONNECT IT
TO THE NEMA5-20R AC OUTLET ON THE TRANSFER RELAY
EXISITING ON-BOARD
CONVERTER
30 A MAIN
BREAKER PANEL
30
MAIN
BRANCH CIRCUITS
ON-BOARD
CONVERTER
IN THE RC
1 2 3 4 5
BATTERY
CHARGER OR
CONVERTER
BATTERY
–
+
–
+
INVERTER
–
+
–
+
T4
T6
SW1
TO BATTERY
NEMA5-20R
AC OUTLET
PCB1
ACL
ACN
–
+
LEGEND:
T1 LINE “L”, COMMON
T2 NEUTRAL “N”, COMMON
T3 LINE “L1”, NO
(NORMALLY OPEN)
T4 NEUTRAL “N1”, NO
(NORMALLY OPEN)
T5 LINE “L2”, NC
(NORMALLY CLOSED)
T6 NEUTRAL “N2”, NC
(NORMALLY CLOSED)
T7 (–) INPUT FOR RELAY COIL
T8 (+) INPUT FOR RELAY COIL
PCB1 CIRCUIT BOARD FOR
CONTROL OF RELAY “R1”
GROUND STUD AND NUT
LED 1 GREN LED: ON WHEN
RELAY IS ENERGIZED
SW1 TIME DELAY SWITCH
ON - DELAY DISABLED
+
_
ATTACHED 15A AC POWER
CORD WITH NEMA-15P
PLUG FOR FEEDING
AC INPUT FROM INVERTER
BLACK, “L”
FROM INVERTER
WHITE, “N”
FROM INVERTER
GREEN, “GND”
FROM INVERTER
GREEN OR
BARE, “GND”
TO PANEL
GREEN OR
BARE, “GND”
FROM GRID
BLACK, “L”
FROM GRID
BLACK, “L”
TO PANEL
WHITE
“N” TO
PANEL
WHITE
“N” FROM
GRID
RELAY
R1
INPUT FROM GRID / SHORE POWER CORD (RV) TO
NORMALLY CLOSED (NC) CONTACT TERMINALS T5 & T
6
BLACK, “L”
WHITE, “N”
GREEN OR BARE, “GND”
Fig. 5.4 Switching Between Inverter
(Primary Source) and Grid (Backup Source)