Full Product Manual
www.ACOPower.com
4120
Valley Blvd Walnut, CA 91789, USA
+1-626-737 1140
Load mode Settings
() Under load mode setting interface, press SET button and
hold for 5s until the number begins flashing. Then press MENU
button to set the parameter, press SET to confirm. Refer to
Figure 5 below for load modes.
Note: Please set Light ON/OFF, Test mode and Manual mode via Timer
1. Timer2 will be disabled and display “2 n”.
Setting Battery Type
() Under Battery Voltage Interface, press SET button and hold for
5s, then enter the interface of Battery Type setting. Choose your
battery type by pressing the MENU button. Press SET to confirm
the battery type or wait 5s to auto confirm.
Note: Please refer to the battery voltage parameters table for the
different battery types.
Figure 5: Load Modes
Troubleshooting
Refer to the tables below for common troubleshooting issues. Figure 6 Shows the included protections with the charge controller while Figure
7 Shows some common troubleshooting applications.
Figure 6: Protections Figure 7: Troubleshooting
Power Your Green Life!
Battery
Overheating
(Requires RTS)
Battery level shows current
value, battery frame blink,
fault icon blink
Load failure
Load overload, Load short
circuit
Timer 1
Timer 2
Light ON/OFF
Disabled
Load will be on for 1 hour
before sunrise
Load will be on for 1
hour before sunrise
Load will be on for 2
hours before sunrise
Load will be on for 2
hours before sunrise
Load will be on for 3 – 13
hours before sunrise
Load will be on for 3 –
13 hours before sunrise
Load will be on for 14
hours before sunrise
Load will be on for 14
hours before sunrise
Load will be on for 15
hours before sunrise
Load will be on for 15
hours before sunrise
Test Mode
Disabled
Manual mode (Default
load ON)
Disabled
Faults
Possible Reasons
Troubleshooting
The LCD is off
during daytime when
sunshine falls on PV
modules properly
PV array disconnected
Confirm that PV wire
connections are correct
and tight
Wire connection is
correct, LCD not
displaying
1) Battery voltage is
lower than 9V
2) PV Voltage is less
than battery voltage
1) Check the voltage of
the battery. At least 9v is
required to activate the
controller.
2) Check PV input voltage
which should always be
higher than battery’s
Interface Blink
Battery over voltage
Disconnect the PV. Check
if the battery voltage is
higher than OVD (over
voltage disconnect) Point.
Interface Blink
Battery over discharged
When the battery voltage
is restored to or above
LVR (Low voltage
reconnect) Point, the load
will recover.
Interface Blink
(Requires RTS)
Battery overheating
The controller will
automatically turn off the
system. When
temperature declines to
50 C, the controller will
resume
Interface Blink
Over load or Short circuit
Please reduce the
number of electric
equipments or check
carefully the loads
connection.
Protection
Conditions
Status
PV Reverse
Polarity
When the battery is connected correctly, the
PV Polarity may be reversed
The Controller is not
damaged. The error
must be corrected.
Battery Reverse
Polarity
When the PV is not connecting, the battery
polarity can be reversed
Battery Over
Voltage
The battery voltage reaches to the OVD
Controller stops
charging
Battery Over
Discharge
The battery voltage reaches the LVD
Controller stops
discharging
Battery
Overheating
(Requires RTS)
Temp. Sensor is higher than 65 C
Output is OFF
Temp. Sensor is less than 55
Output is ON
Controller
Overheating
Temp. Sensor is higher than 85 C
Output is OFF
Temp Sensor is less than 75 C
Output is ON
Load Short
Circuit
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 day-
night cycle
(night time>3 hours)
Load Overload
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 day-
night cycle
(night time>3 hours)
Damaged RTS
The RTS is short-circuited or damaged
Controller shows
constant 25 C
(NOT actual temp.)
➢
Sealed (Default)
Gel
Flood
ed