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BEIJING EPSOLAR TECHNOLOGY CO., LTD.
Battery
Battery level shows current value, battery frame
Overheating
blink, fault icon blink
Load failure
Load overload
①
When 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.
1**
Timer 1
100
Light ON/OFF
Load will be on for 1 hour
101
since sunset
Load will be on for 2 hours
102
since sunset
Load will be on for 3～13
103
113
～
hours since sunset
Load will be on for 14 hours
114
since sunset
Load will be on for 15 hours
115
since sunset
116
Test mode
Manual mode(Default load
117
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)
NOTE: Please refer to the battery voltage parameters table for the different battery
type.
5. Protections
Protection
Conditions
PV Reverse
When the battery is correct connecting, the
Polarity
PV can be reversed.
Battery Reverse
When the PV is not connecting, the battery
Polarity
can be reversed.
Battery Over
The battery voltage reaches to the OVD
Voltage
Battery Over
The battery voltage reaches to the LVD
Discharge
Battery Over
The battery voltage reaches to the LVD
Discharge
7.Technical Specifications
Item
Nominal system voltage
Battery input voltage range
Rated charge/discharge current
Max. PV open circuit voltage
Battery type
※
Equalize Charging Voltage
Boost Charging Voltage
※
※
Float Charging Voltage
Low Voltage Reconnect
Voltage
※
Low Volt. Disconnect
Voltage
※
Self-consumption
Temperature compensation
coefficient
Charge circuit voltage drop
Discharge circuit voltage drop
LCD temperature range
Working environment
temperature
Humidity range
Enclosure
Grounding
USB input
Overall dimension
Mounting dimension
Mounting hole size
Terminals
Net weight
※Above the parameters are in 12V system at 25℃, twice in 24Vsystem
①
,Load short circuit
2**
Timer 2
2 n
Disabled
Load will be on for 1 hour
201
before sunrise
Load will be on for 2 hours
202
before sunrise
Load will be on for 3～13
203
213
～
hours before sunrise
Load will be on for 14
214
hours before sunrise
Load will be on for 15
215
hours before sunrise
2 n
Disabled
2 n
Disabled
②Gel
③Flooded
Status
The controller is not
damage
Stop charging
stop discharging
stop discharging
VS1024AU
VS2024AU
10A@55℃
20A@55℃
142x85x41.5mm
160x94.9x49.3mm
130x60mm
148x70mm
Φ4.5mm
2
4mm
10mm
0.22kg
0.35kg
3
Tel：+86-10-82894112 / 82894962 Website：www.epsolarpv.com/www.epever.com
Battery
Overheating
Controller
Overheating
Load Short
Circuit
Load Overload
Damaged RTS
6. Troubleshooting
Faults
The
LCD
is
during daytime when
sunshine falls on PV
modules properly
Wire connection is
correct,
LCD
display
Interface
blink
Interface
blink
Interface
blink
Interface
blink
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.
VS3024AU
12/24VDCAuto
9V～32V
30A@55℃
50V
Sealed(Default) / Gel / Flooded /User
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
Sealed/Gel/Flooded:12.6V/User:9-17V
Sealed/Gel/Flooded:11.1V/User:9-17V
≤10mA/12V;≤18mA/24V
-3mV/℃/2V（25℃）
≤0.29V
≤0.16V
-20℃～+70℃
-25℃～+55℃(Product can work continuously at full load)
≤95%, N.C.
IP20
Common Positive
5VDC/2.4A
181x100.9x59.8mm
172x80mm
Φ5mm
2
2
16mm
0.55kg
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
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
The RTS is short-circuited or damaged
Possible reasons
off
PV
array
Confirm that PV wire connections
disconnection
are correct and tight
1) Battery voltage is
1) Please check the voltage of
lower than 9V
battery. At least 9V voltage to
2) PV voltage is less
activate the controller
not
than battery voltage
2) Check the PV input voltage
which should be higher than
battery's
Check if the battery voltage is
higher than OVD point (over
Battery over voltage
voltage disconnect voltage), and
disconnect the PV.
When the
Battery
restored to or above LVR point
over discharged
(low voltage reconnect voltage),
the load will recover
The controller will automatically
turn the system off. But while the
Battery Overheating
temperature decline to be below
50 º C, the controller will resume.
Please reduce the number of
Over load or Short
electric
circuit
carefully loads connection.
VS4524AU
45A@55℃
194x118.4x63.8mm
185x90mm
Φ5mm
2
16mm
0.76 kg
Any changes without prior notice!
4
Output is OFF
Output is ON
Output is OFF
Output is ON
Output is OFF
Clear the fault:
Restart the controller
or wait for one
night-day cycle
(night time>3 hours).
Output is OFF
Clear the fault:
Restart the controller
or wait for one
night-day cycle
(night time>3 hours).
Charging or
discharging at 25℃
Troubleshooting
battery
voltage
is
equipments
or
check
VS6024AU
60A@55℃
214x128.7x72.2mm
205x100mm
Φ5mm
2
25mm
1.02kg
Version
number：V1.0
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