
BEIJING EPSOLAR TECHNOLOGY CO., LTD. Tel:+86-10-82894112 / 82894962 Website:www.epsolarpv.com/www.epever.com
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Battery level shows current value, battery frame
blink, fault icon blink
Load overload①,Load short circuit
①When load current reaches1.02-1.05 times 1.05-1.25 times, 1.25-1.35 times and
1.35-1.5 times more than nominal value, controller will automatically turn off loads in 50s,
30s,10s and 2s respectively
4.3 Load mode setting
Operating Steps:
Under load mode setting interface, press SET button and hold on 5s till the number begin
flashing, then press MENU button to set the parameter, press SET button to confirm.
Load will be on for 1 hour
since sunset
Load will be on for 1 hour
before sunrise
Load will be on for 2 hours
since sunset
Load will be on for 2 hours
before sunrise
Load will be on for 3~13
hours since sunset
Load will be on for 3~13
hours before sunrise
Load will be on for 14 hours
since sunset
Load will be on for 14
hours before sunrise
Load will be on for 15 hours
since sunset
Load will be on for 15
hours before sunrise
Manual mode(Default load
ON)
NOTE: Please set Light ON/OFF, Test mode and Manual mode via Timer1. Timer2
will be disabled and display "2 n".
4.4 Battery Type
Operating Steps
Under Battery Voltage interface, press SET button and hold on 5s then enter into the
interface of Battery type setting.After choosing the battery type by pressing MENU button,
waiting for 5s or pressing SET button again to modify successfully.
Battery Type
①Sealed (Default) ②Gel ③Flooded
NOTE: Please refer to the battery voltage parameters table for the different battery
type.
5. Protections
When the battery is correct connecting, the
PV can be reversed.
The controller is not
damage
When the PV is not connecting, the battery
can be reversed.
The battery voltage reaches to the OVD
The battery voltage reaches to the LVD
The battery voltage reaches to the LVD
Temperature sensor is higher than 65℃
Temperature sensor is less than 55℃
Temperature sensor is higher than 85℃
Temperature sensor is less than 75℃
Load current ≥2.5 times rated current
One short circuit, the output is OFF 5s;
Two short circuit, the output is OFF 10s;
Three short circuit, the output is OFF 15s;
Four short circuit, the output is OFF 20s;
Five short circuit, the output is OFF 25s;
Six short circuit, the output is OFF
Output is OFF
Clear the fault:
Restart the controller
or wait for one
night-day cycle
(night time>3 hours).
Load current ≥2.5 times rated current
1.02-1.05 times, 50s,
1.05-1.25 times, 30s
1.25-1.35 times,10s
1.35-1.5 times 2s
Output is OFF
Clear the fault:
Restart the controller
or wait for one
night-day cycle
(night time>3 hours).
The RTS is short-circuited or damaged
Charging or
discharging at 25℃
The LCD is off
during daytime when
sunshine falls on PV
modules properly
Confirm that PV wire connections
are correct and tight
Wire connection is
correct, LCD not
display
1) Battery voltage is
lower than 9V
2) PV voltage is less
than battery voltage
1) Please check the voltage of
battery. At least 9V voltage to
activate the controller
2) Check the PV input voltage
which should be higher than
battery’s
Check if the battery voltage is
higher than OVD point (over
voltage disconnect voltage), and
disconnect the PV.
When the battery voltage is
restored to or above LVR point
(low voltage reconnect voltage),
the load will recover
The controller will automatically
turn the system off. But while the
temperature decline to be below
50 ºC, the controller will resume.
Over load or Short
circuit
Please reduce the number of
electric equipments or check
carefully loads connection.
8. Disclaimer
This warranty does not apply under the following conditions:
1) Damage from improper use or use in an unsuitable environment.
2) PV or load current, voltage or power exceeding the rated value of controller.
3) User disassembly or attempted repair the controller without permission.
4) The controller is damaged due to natural elements such as lighting.
5) The controller is damaged during transportation and shipment.
7.Technical Specifications
Battery input voltage range
Rated charge/discharge current
Max. PV open circuit voltage
Sealed(Default) / Gel / Flooded /User
Equalize Charging Voltage※
Sealed:14.6V/ Gel: No/ Flooded:14.8V/User:9-17V
Sealed:14.4V/ Gel:14.2V/ Flooded:14.6V/User:9-17V
Sealed/Gel/Flooded:13.8V/User:9-17V
Low Voltage Reconnect
Voltage※
Sealed/Gel/Flooded:12.6V/User:9-17V
Low Volt. Disconnect
Voltage※
Sealed/Gel/Flooded:11.1V/User:9-17V
Temperature compensation
coefficient
Charge circuit voltage drop
Discharge circuit voltage drop
Working environment
temperature
-25℃~+55℃(Product can work continuously at full load)
※Above the parameters are in 12V system at 25℃, twice in 24Vsystem
Any changes without prior notice! Version number:V1.0
All manuals and user guides at all-guides.com