Parameter Details
Material Code
：
1.1.24.01511
Setting Menu on LCD Screen
2). When "load mode" is displayed, long press to enter into the load mode setting. Press
to adjust the mode, and long press for 2s to save and exit; or else, the system
will not save the setting that was just made and automatically exit the setting interface after 12s.
Battery Types, Charging Voltages (Lithium Battery)
Over-Discharge Return and Over-Discharge Voltage Settings
In the non-load mode menu:
1) When is long pressed, the first interface entered is for battery type setting, and
the flashing one is the battery type currently selected. Press to select among
FLD/GEL/SLD/LI.
2) After selection, short press to enter into over-discharge return and over-
discharge voltage settings; or the first to enter charging voltage setting menu for
lithium battery.
3) After parameters have been set, long press for 2 s to save and exit.
Parameters shall be set according to the following rule: over-discharge voltage
＜
over-discharge return v
oltage ≤under
-voltage warning
＜
floating charging
voltage
＜
boost charging return ≤equalizing charging v
oltage
＜
overcharge
voltage; and two adjacent values shall have a difference greater than 0.5 V.
In the charging and discharging overload protection mechanism, the relation between
overload current and protection time is as follows: An overload current 1.25 times of
the rated current initiates a delay of 30s before starting protection; similarly, 1.5 times,
5s and 2 times, 1s.
Overload recovery: automatic recovery after 1 minute.
Charging and Discharging Overload Protection and Recovery Time
Short-circuit automatic recovery time: 1st time, 5 s; 2nd time, 10 s; 3rd time, 15 s; 4th
time, 20 s; 5th time, 4 hours or automatic recovery the next day; or long press
to make the load resume output.
Load Short Circuit and Recovery
Communication Port Line Se
q
uence
(Only for Controllers with Communication Functions)
Controller communication port RJ12 (6-pin)
RS232
Installation Instructions and Precautions
1. The controller shall be installed securely, and its dimensions
are as follows:
PWM-30A/40A External dimensions: 166.0×118.2×52.6(mm)
Installation dimensions: 156×57.5 (mm)
3. Precautions:
①
If it is 12V system, the bottom left corner of LCD display will show '12V'; 24V system
will show' 24V'.
② The first step is to connect the b
attery. If the connection is made correctly, the
controller screen will be lit up; otherwise, check whether the connection is correct.
③ The second step is to connect the solar p
anel. If sunlight is present and strong
enough (the solar panel voltage is greater than battery voltage), the sun icon on the
LCD screen is on; otherwise, check whether the connection is correct (it's
recommended that the operation be performed under the debugging mode).
④ The thir
d step is to connect the load. Connect the load leads to the controller's
load output terminal, and the current shall not exceed the controller's rated current.
⑤As the contr
oller will generate heat during operation, it's recommended that the
controller be installed in an environment with good ventilation conditions.
⑥ Choose cables with lar
ge enough capacity for connection, in case too much loss
incurred on the lines causes the controller to misjudge.
⑦The contr
oller has a common negative pole inside. If grounding is needed, ground
the negative pole.
⑧It'
s important to fully charge the battery regularly. At least once full charging every
month is recommended, and failure to do that may cause permanent damage to the
battery. Only when in-flow energy outpaces out-flow energy can the battery be
charged fully. Users shall bear this in mind when configuring the system.
⑨ Check whether the contr
oller's each connection terminal is tightened securely; if
not, it may suffer damage when large current passes.
PWM-30A/PWM-40A
Error Code List
Corresponding error
Code on LCD screen
E0
E1
E2
E3
E4
E5
E6
E8
E10
No error
Battery over discharge
Battery overvoltage
Undervoltage warning
Load short circuit
Load overload
T
emperature too high inside controller
Charging current too high
Solar panel input voltage is too high
Common Problems and Solutions
Causes and Solutions
Check whether the battery is correctly
connected.
Check whether the ambient temperature is
too low and whether the display recovers
when the temperature rises.
Check whether the solar panel is correctly
connected and contact is good and reliable.
Check whether the solar panel voltage falls
below the battery voltage.
The lo
ad will be switched on automatically
after 10 minutes (set by the user).
System overvoltage. Check whether the
battery voltage is too high.
The b
attery is over-discharged, and will
recover when recharged adequately.
The lo
ad's power exceeds the rated value or
it's short-circuited. After removing the problem,
long press the key or wait until it recovers
automatically.
Check whether the power-consuming device is
connected correctly and reliably.
Check whether wiring is sound and reliable, and
system voltage is correctly recognized.
Symptoms
LCD screen does not light up
Incomplete display or no renewal
on LCD screen
No charging with sunlight present
The b
attery icon flashes slowly,
and there is no output.
The lo
ad icon flashes quickly, and
there is no output.
The lo
ad and the encircling light ring
stays lit, and there is no output.
Other symptoms
The char
ging and discharging amp
-hrs displays: 9999.K Ah
The decimal point flashes indicating that the
displayed value has reached its upper limit.
Long press to reset it.
Model
Rated current
System voltage
Rated power
No-load loss
Max. Solar energy input
voltage
Max. voltageat the
battery end
Battery type
Overvoltage protection
Equalizing charging
voltage
Boost charging voltage
Charging recovery
voltage
Over-discharge voltage
Equalizing charging
interval
Equalizing charging time
Boost charging time
T
emperature compensation
Light control voltage
Light control
judgment time
USB function
Bluetooth function
232 Serial port
communication function
Operating temperature
Over temperature
protection
Net weight
Protection functions
Dimensions
PWM-30A/PWM-40A
Remarks
30A/40A
Automatic recognition of 12V/24V
Manual setup
12V/450W
24V/900W
12V/600W
24V/1200W
< 22mA/12V
；
< 16mA/24V
<55V
<34V
Parameters
Flooded
FLD
Sealed
SLD
GEL GEL
Lithium LI
16.0V
14.8
14.6
13.8
14.6
14.4
13.8
-
14.2
13.8
-
14.4
-
13.2V
12.5V
（
settable with the keys
）
11.0V
（
settable with the keys
）
30 days
-
-
1H
-
-
2H
-
-3.0mV/
℃
/2V
-
Light control on 5V, light control off 6 V (light control on plus 1 V)
10 minutes
Yes
optional
-25
℃
to+55
℃
；
IP30
166.0×118.2×52.6(MM)
Battery plate reverse connection protection, a battery reverse connection
protection, charging battery board short circuit protection, charging
the battery open circuit protection, charging over current protection,
overload protection, load short-circuit protection controller and over
temperature protection.
Default:
automatic
identification
The higher the system
voltage, the lower the
no-load loss.
Default
SLD
×1/12V
；
×2/24V
；
×1/12V
；
×2/24V
；
2. Installation hole diameter: 3.5 (mm)
IP protection rating
700g
T
he sun icon does not light up, while
the solar panel icon does.
T
he battery
voltage is normal, but there is no
output.
The b
attery icon flashes quickly,
and there is no output.
Floating charging
voltage
Over-discharge
recovery voltage
optional
When temperature is above 60
℃，
charging function is turned
off, and the function is recovered when temperature is below 55
℃；
When temperature is above 70
℃，
load starting function is turned
off, and the function is recovered when temperature is below 60
℃
