LMS series intelligent solar controller — 4/8
stage, constant-voltage charge stage will not be activated. Only
when battery voltage is lower than charge return voltage, con-
troller enters into direct-charge stage, and then into constant-
voltage charging stage after quitting direct-charge status until
battery is finally full-charged. When battery is firstly connected
to controller, if voltage of battery is higher than charge return
voltage, charging will not be started even though voltage of
photovoltaic panel is sufficient to charge the battery.
Status of charge indicator light is shown in Fig2
1.3 Load control mode
LMS series intelligent solar controllerhas 6 built-in load
control modes which can meet most requirements of light con-
trol of solar lighting system. The 6 built-in load control modes
are as follow:
• Pure light-operated mode (L mode)
1
time
Lack of sun,lasting for 10sec
enough of sun,lasting for 1min
Load is closed
Load is open
Load is closed
Fig 2.
light-control mode
In all related modes of light control, the controller can
judge whether environment lighting is low enough to open
the load according to the voltage of photovoltaic panel. In
making the judgment, the controller must detect the volt-
age of photovoltaic panel lower than light-control load
starting threshold for continuous 10sec. At this time, load
is opened normally. When the voltage of photovoltaic
panel is recovered to the value above light-control load
starting threshold and remains the value for continuous
1min, the load is closed normally. The continuous thresh-
old detection lasting for 10sec and 1min is to prevent false
judgment caused by car light, lighting and other lights
from circumstance.
• Light & timing mode (LT mode)
Similar to solo light-control mode, photovoltaic panel will
judge the openness of load by current ambient brightness.
What is different is that after load is opened, even though
the voltage of photovoltaic panel is lower than the load-
closing threshold within 1
∼
13h, the controller will still
shut down the load by timing and re-start the load again
at dark.
• 3 Light-control stages (3L mode)
Similar to solo light control mode, the controller judges
whether it is necessary to open or close the load by the
voltage of photovoltaic panel. The controller controls
load output by 100%, 50% and 30% PWM to lengthen
the opening duration of load in 3 time sections.
• Manual mode (H mode)
In manual mode, the opening or closing of load is manu-
ally controlled by
button.
• Normal open mode (24H mode)
In normal open mode, load will be outputted continuously,
which is the so called 24h working mode.
• Charge mode (Ch mode)
Load control takes no effect in this mode. That means
controller only actives battery charge function and load is
closed.
2. Installation method
LMS series intelligent solar controllerwill be heated during
operation. It is a must to mount it to the surface made of
nonflammable materials. Installation on large-sized metal piece
is more beneficial to heat dissipation. Please follow the steps
below in installation:
• Though the controller has inverse connection protection
function, it is better to avoid the inverse connection of
photovoltaic panel in engineered installation.
• Connection should be strong and reliable. Contact area
of connector should be large enough to prevent virtual
connection and heat accumulation caused by oxidation at
connection.
3. Control and interface instruction
Controller is equipped with a LC display and can be con-
veniently switched between modes and parameter configuration.
Operation is convenient and simple.
3.1 LCD instruction
LCD display description, as shown in Fig3
3.2 Start-up interface
After powered, the controller will detect battery voltage
and display the model, for example, 1210, as shown in Fig4.
3.3 main interface
Displayed contents of main interface include battery volt-
age, voltage of photovoltaic panel, charge current and load
output current. Press button to switch between the contents. as
shown in Fig5
、
Fig6
、
Fig8
、
Fig7. Press button to switch
between the contents.
