Srne ML2420 - Product Protection Function and System Maintenance; Protection Functions

Note: after system voltage setting, power supply has to be switch off
and then on again, otherwise the system may work under an abnormal system
voltage.
The controller enables users to customize the parameters according to the actual conditions, but parameter
setting must be done under the guidance of a professional person, or else faulty parameter settings may
render the system not able to function normally. For details about parameter settings, see table 3.
Parameter setting cross-reference table
No.
Displayed item
Description
Parameter range
Default
setting
1
TYPE OF BAT
Battery type
User/flooded/Sealed/Gel
Sealed
2
VOLT OF SYS
System voltage
12V/ 24V
AUTO
3
EQUALIZ CHG
Equalizing
charging voltage
9.0 to 17.0V
14.6V
4
BOOST CHG
Boost charging
voltage
9.0 to 17.0V
14.4V
5
FLOAT CHG
Floating charging
voltage
9.0 to 17.0V
13.8V
6
LOW VOL RECT
Over-discharge
recovery voltage
9.0 to 17.0V
12.6V
7
LOW VOL DISC
Over-discharge
voltage
9.0 to 17.0V
11.0V
Table 3
4. Product Protection Function and System Maintenance
4.1 Protection Functions
Waterproof
Waterproof level: IP32
Input power limiting protection
When the solar panel power exceeds the rated power, the controller will limit the
solar panel power under the rated power so as to prevent excessively large currents