Communication Connection; Dry Contact Signal - MPP Solar LV2424 User Manual

connectors. Then, connect positive pole (+) of connection cable to positive pole (+) of PV input connector.
Connect negative pole (-) of connection cable to negative pole (-) of PV input connector.
Recommended PV module Configuration
PV Module Spec.
(reference)
- 250Wp
- Vmp: 30.7Vdc
- Imp: 8.15A
- Voc: 37.4Vdc
- Isc: 8.63A
- Cells: 60

Communication Connection

Please use supplied communication cable to connect to inverter and PC. Insert bundled CD into a computer and
follow on-screen instruction to install the monitoring software. For the detailed software operation, please
check user manual of software inside of CD.

Dry Contact Signal

There is one dry contact (3A/250VAC) available on the rear panel. It could be used to deliver signal to external
device when battery voltage reaches warning level.
Unit Status
Power Off Unit is off and no output is powered.
Output is powered from Utility.
Output
powered
from
Battery
Solar.
Power On
Inverter Model SOLAR INPUT 1
1KW
2KW, 2.4KW
3KW, 4KW
5KW
Condition
is Program 01 Battery voltage < Low DC warning
set as SUB voltage
Battery voltage > Setting value in
or
Program 21 or battery charging
reaches floating stage
Program 01 Battery voltage < Setting value in
is set as Program 20
SBU
Battery voltage > Setting value in
Program 21 or battery charging
reaches floating stage
SOLAR INPUT 2
2S2P
2S4P
2S8P
3S5P
2S6P 2S6P
3S4P 3S4P
8
Q'ty of modules
N/A
4pcs
N/A 8pcs
N/A 16pcs
N/A 15pcs
24pcs
24pcs
Dry contact port:
NC & C NO & C
Close Open
Close Open
Open Close
Close Open
Open Close
Close Open