3.3 Connection Overview
3.3.1 System Connection
The system connection diagram is as below( for US version):
Please prepare the breakers before connetion, breakers selection recommendation for both DC and AC
Overview of Connection Ports
UPS Load
Inverter model
PV Breakers(2Px4)
Main Breaker(2P)
Geneartor breaker
MPPT1 string 1 : 600V/20A
200A/240Vac when ups is used for whole home backup
200A/240Vac when ups is used for whole home backup
12K
100A/240Vac when ups is used for partial load backup
MPPT2: 600V/20A
Load Breaker(2P)
Battery Breaker(2P)
100V/300A
MPPT3: 600V/20A
100A
100A/240Vac when ups is used for partial load backup
L1 L2
L1 L2
L1 L2
L1
L2
07
08
Overview of the cable box
Mains model
j. CAN Matching resistance
FAN1
f. FAN2
g. TEMP
FAN3
485B
485A
GND
RSD
+VIN
+12V
NO
GEN
NC
NO
DRY
NC
b. Battery Communication Interface
c. CT Interface
e. Parallel cable
communication Interface
a. DRM Interface
h. Meter
d. INV485
a). DRM port(Applied only in AU)
c). CT Interface: please check Chapter 3.6.4 for CT connection
d). INV 485: Debugging port
b). Battery communication port(CAN&RS485)
please check Chapter 3.5.2 for Pin definition
please check Chapter 3.9 for Parallel connection
e). Parallel communication port
f). FAN1/2/3
g). TEMP: Connection for temperature sensor of lead-acid battery
h). Meter 485B&485A: For Meter communication
i). VIN/+12V: Connect a outside emergency switch on these 2 terminals
j). CAN Matching resistance: Set DIP switch when use inverters in parallel
k). GEN(NO, NC): Connection for generator auto-start function
l). DRY(NO,NC): reserved
3.4 PV Connection
* Please check the lowest ambient temperature of the location of the installation. The rated
Voc on solar panel nameplate is obtained at 25
℃
temperature. Solar panel Voc will increase
with the decreasing of ambient temperature. Please ensure the Max.solar string voltage
corrected at the lowest temperature not exceed the inverter max input voltage 550V for safe.
PV connection of this hybrid inverter is same as traditional on-grid solar inverter (string inverter).
M i n i m u m V o l t a g e
Cable Size
2
4 - 6 mm
600V
Cable Requirement:
MPPT1 string 2 : 600V/20A
PV Breakers
Battery Breaker
Load Breaker
Geneartor breaker
i.
k.
l.
DC Switch
GRID
LOAD
PV
INPUT
BAT
INPUT
WIFI
COM
GEN
5-51mm(2 in)
35.5mm(1.4 in)
72 mm(2.83in)
70
.5 m
m
(2
.7
8in
)
107 mm(4.21in)
180 mm(7.09in)
95 mm(3.74in)