BEIJING EPSOLAR TECHNOLOGY CO., LTD. Tel
：
+86-10-82894112 / 82894962 Website
：
www.epsolarpv.com/www.epever.com
3 4
30s,10s and 2s respectively.
NOTE: Just only the Load over load and the Load short circuit can be cleared by
pressing the button.
Load control setting
(1)
(2) Light ON/OFF (Default)
(3) Light ON +Timer
(4)Output mode
The load will be on for 24 hours. The button is disabled.
(5)Test mode
The same as light ON/OFF mode but no 10 minutes delay. The test mode is only used to
test load switch. It can return to the previous mode after controller restart.
NOTE: In the mode of Light ON/OFF and Light ON + Timer, the Load is turned on
after 10minutes delay.
7. Protection
PV Short Circuit
If the PV array short circuit, the controller will stop charging, clear it to resume normal
operation.
PV Reverse Polarity
Fully protection against PV reverse polarity, correct the wire connection to resume
normal operation.
Battery Reverse Polarity
Fully protection against battery reverse polarity, correct the wire connection to resume
normal operation.
Battery Over Voltage
When the battery voltage reaches to the set point of Over Voltage Disconnect Voltage,
the controller will stop charging the battery to protect the battery from being over
charged to break down.
Battery Over Discharge
When the battery voltage reaches to the set point of Low Voltage Disconnect Voltage,
the controller will stop discharging the battery to protect the battery from being over
discharged.
Battery Overheating
The controller detect the environment temperature through the external temperature
sensor. If the environment temperature exceeds 65 ºC, the controller will automatically
start the overheating protection to stop working, and recover below 50 ºC.
Load Overload
Load will be switched off when 1.05 times rated current overload happens. Controller will
automatically attempt to reconnect load for 5 times. If overload protection still exist after
controller’s 5 times attempts, user have to reduce load appliance, then press the button
or repower the controller or wait for one night-day cycle (night time>3 hours).
Load Short Circuit
Load will be switched off when load short circuit (
≥4 times rated current) happens.
Controller will automatically attempt to reconnect load for 5 times. If short circuit
protection still exist after controller’s 5 times attempts, user have to clear short
circuit ,then press the button or disconnect and restart the controller or wait for one
night-day cycle (night time>3 hours).
Controller Overheating
If the Internal temperature of the controller exceeds 85
º
C, the controller will
automatically start the overheating protection, and recover below 75
º
C.
High Voltage Transients
The controller is protected against small high voltage transients. In lightning prone
areas, additional external suppression is recommended.
8. Troubleshooting
Faults
Possible reasons
Troubleshooting
LED
Charging
indicator
turn
off
during daytime when
sunshine falls on PV
modules properly
PV
array disconnection
Confirm that PV and battery wire
connections are correct and tight
No LED indicator
Battery voltage maybe
less than 8V
Measure battery voltage with the
multi-meter. Min.8V can start up the
controller
Battery LED indicator
Battery voltage higher
Check if battery voltage is higher
green fast Flashing
than over voltage
disconnect
voltage(OVD)
than OVD, and disconnect the PV
Battery LED indicator
red and display
“
”
Battery
over discharged
When the battery voltage is restored
to or above LVR point (low voltage
reconnect voltage), the load will
recover
Battery LED indicator
red flashing
Battery Overheating
The controller will automatically turn
the system off. But while the
temperature decline to be below 50
ºC, the controller will resume.
Charging(green) and
battery
indicator
(orange)flashing
simultaneously
Controller overheating
Please
try
to
decline
the
environment’s temperature, or the
power of PV or the power of the load
Load
terminals
no
output
and
display
“
” or “
”
Over load or Short
circuit
Please reduce the number of
electric
equipments
or
check
carefully loads connection.
NOTE: If want to clear errors promptly, please restart the controller and disconnect
the PV array firstly, then load and battery; and reconnect system according to
"Chapter4".
9. Technical Specifications
Item
LS1024BPD
LS2024BPD
Nominal system voltage
12/24VDC Auto
Battery input voltage range
8
～
32V
Battery type
Sealed (Default) / Gel / Flooded
Max. PV open circuit voltage
50V
Rated current
10A
20A
Self-consumption
9.4mA/12V;12.2mA/24V
Charge Circuit Voltage Drop
≤0.3V
Discharge Circuit Voltage Drop
≤0.2V
Temperature compensation
coefficient
-3mV/
℃
/2V
Working environment
temperature
-35
℃～
+55
℃
Enclosure
IP67
Grounding
Common Positive
Overall dimension
108.5x64x25.6mm
108.5x83x25.6mm
Mounting dimension
100.5mm
100.5mm
Mounting hole size
Φ5
Power cable
2.5mm
2
4.0mm
2
Net weight
0.33kg
0.41kg
Battery Voltage Control Parameters
Below parameters are in 12V system at 25 ºC, please double the values in 24V system
Battery Type
Sealed
Gel
Flooded
Over Voltage Disconnect Voltage
16.0V
16.0V
16.0V
Charging Limit Voltage
15.0V
15.0V
15.0V
Over Voltage Reconnect Voltage
15.0V
15.0V
15.0V
Equalize Charging Voltage
14.6V
——
14.8V
Boost Charging Voltage
14.4V
14.2V
14.6V
Float Charging Voltage
13.8V
13.8V
13.8V
Boost Reconnect Charging Voltage
13.2V
13.2V
13.2V
Low Voltage Reconnect Voltage
11.6V
11.6V
11.6V
Under Voltage Warning Reconnect
Voltage
12.2V
12.2V
12.2V
Under Voltage Warning Voltage
12.0V
12.0V
12.0V
Low Voltage Disconnect Voltage
11.1V
11.1V
11.1V
Discharging Limit Voltage
10.6V
10.6V
10.6V
Equalize Duration
120 min.
——
120 min.
Boost Duration
120 min.
120 min.
120 min.
10. Disclaimer
Damage from improper use or use in an unsuitable environment.
PV or load current, voltage or power exceeding the rated value of controller.
User disassembly or attempted repair the controller without permission.
The controller is damaged due to natural elements such as lighting.
The controller is damaged during transportation and shipment.
A
ny changes without prior notice!
Version number
：
V2.1
