Samlexpower STS-30 Owner's Manual - page 10
10
3
INSTALLATION
Testing of the operation (Fig 4)
READ AND FOLLOW ALL SAFETY INSTRUCTIONS BEFORE TESTING THE
OPERATION
a. Plug in the power cord. As the time delay has been disabled (As explained above, if the
primary source is electric utility / shore power cord, 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 the power cord is plugged in. The green LED1 will light up indicating that the relay
has energized. If the main panel circuit breakers are switched on, the RV loads should operate
normally. The external battery charger will start charging the batteries.
b. Switch on the inverter. The inverter will be in standby condition.
c. Unplug the power cord. The relay will immediately de-energize and the AC loads will be
transferred to the inverter.
Installation between Power Cord and Generator (Fig 5)
This confi guration is used in RV application when it is desired to switch between the shore power
cord and the onboard generator. When the load demand in the RV is more than the capacity of the
Shore Power Cord / the breaker capacity of the RV Park / Camp Ground, the on-board generator
is required to be started. In this case, the AC loads should transfer to the generator as soon as the
generator is started and is ready to take on the load (after a delay of around 20 to 25 sec).
ON
LED1
TERMINALS:
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
T5
T7
T8
T1
T2
T3
15 A
FUSE
INPUT FROM SHORE POWER CORD
TO NORMALLY CLOSED (NC)
CONTACT TERMINALS T5,T6
OUTPUT TO
AC BREAKER
PANEL
INPUT FROM GENERATOR
TO NORMALLY OPEN (NO)
CONTACT TERMINALS T3,T4
30 A MAIN
BREAKER PANEL
30
MAIN
BRANCH CIRCUITS
1 2 3 4 5
T4
T6
SW1
PCB1
Fig.5. Typical Generator / power cord.