DC-DC power supply module that can be configured in either Boost or Buck mode. limiting voltage and current for DC power supply output.
Basic Instructions：
The SG830 module is a DC-DC power supply module that can be configured in either Boost or Buck mode.
It has the functions of limiting voltage and current (CV, CC) for DC power supply output.
The DC voltage of photovoltaic can be fed into the bus of the frequency converter through step-up or step-down
methods to achieve mixed power supply of the frequency inverter's mains power and photovoltaic power,thereby
achieving energy conservation of the mains power.
It is equipped with built-in photovoltaic MPPT function,and the tracking efficiency can reach 99.9%.
Pluggable type keyboard, parameter Settings, the Modbus/RS485 communication function;
To wear a wall installation.
Specification parameters, model classification:
Basic specification parameter table
Parameters | Value | Notes |
Rated voltage Vmp | 500Vdc（Booster） 350Vdc（Buck） | Inverter working voltage point |
Open circuit voltage Voc | 600Vdc（Booster） 450Vdc（Buck） | Photovoltaic open-circuit voltage |
Rated current （Low voltage side) | 10A（5KW） 20A（10KW） | |
Rated input power | 5KW or 10KW | |
Transfer efficiency | 95% above | |
Maximum voltage | 800Vdc | Over voltage point |
Minimum voltage | 150Vdc，200Vdc(hysteresis) | Under voltage point |
MPPT efficiency | >99% |
Model Selection Table
Power | Model （-H booster， -L buck ） | Rated current input sdie | Note | ||
3KW | SG830-3KW-H SG830-3KW-L | 6A | Air-cooled, single inductor | ||
5KW | SG830-5KW-H SG830-5KW-L | 10A | Air-cooled, single inductor | ||
8KW | SG830-8KW-H SG830-8KW-L | 16A |
|
10KW | SG830-10KW-H SG830-10KW-L | 20A | Air-cooled, single inductor |
16KW | SG830-16KW-H SG830-16KW-L | 32A | Air-cooled, double inductor |
Installation method and heat dissipation：
Mode of connection：
PV+ and PV- are on the low-voltage side:
If the boost mode is selected, the low-voltage side is directly connected to the PV voltage;
If it is the buck mode, the low-voltage side is connected to the bus P+ and P- of the inverter;
Out+ and Out- are on the high-voltage side:
If in the boost mode, the high-voltage side is connected to the inverter DC bus P+ and P-;
If in the buck mode, the high-voltage side is connected to the photovoltaic input voltage;
Note:
Select the boost mode or the buck mode, and the wiring should be consistent with the software settings;
The low-voltage side voltage will automatically flow to the high-voltage side, and it is not controlled by the module; reverse flow will not occur automatically;
Whether it is the low-voltage side or the high-voltage side, the voltage is distinguished as positive and negative. It cannot be connected in reverse; otherwise, the module will be damaged.
Monitoring parameter function code table:
Parameter Settings and operation parameter monitoring can be carried out through an external keyboard. Parameter is set in the B0 group; Monitoring parameters in the U1 group;
Code | Name | Unit | Com address |
U1-00 | High-voltage bus voltage | 0.1Vdc | 0x7100 |
U1-01 | Low-voltage bus voltage | 0.1Vdc | 0x7101 |
U1-02 | High-voltage side current | 0.01Adc | 0x7102 |
U1-03 | Low-voltage side current | 0.01Adc | 0x7103 |
U1-04 | Total power | 0.01KW | 0x7104 |
U1-05 | Low position of the electricity meter | Kwh | 0x7105 |
U1-06 | High position of the electricity meter | Mwh | 0x7106 |
U1-07 | Photovoltaic Voc detection | 0.1Vdc | 0x7107 |
U1-08 | MPPT working status | 0 | 0x7108 |
U1-09 | Temperature | 0 | 0x7109 |
Communication and terminal instructions：
The PH830 module supports one RS485 communication channel and Modbus protocol. Irfpa support DI terminal 2 road input, support the keyboard; Communication function code PD group of parameters, can be installed from the machine address, baud rate, data format, etc.
Running indicator light
Flash (0.6 SEC period) : fault state slow flash
(2 SEC period) : normally on stop condition:
long running out: the under voltage condition
