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P/No. SC300D
SOLAR CHARGE REMOTE
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IMPORTANT SAFETY INSTRUCTIONS
GENERAL SAFETY INFORMATION
• Read all instructions and cautions in the manual before starting the installation.
• Keep the SC300D away from rain, exposure, severe dust, vibrations, corrosive gas and
intense electromagnetic interference.
• Do not allow water to enter remote meter.
• There are no user serviceable parts inside the controller. Do not disassemble or attempt
to repair it.
GENERAL INFORMATION
Features
• Automatic identify and display the type, model and relevant parameter data of
controllers;
• Real-time display the operational data and working status of the connection devices
in digital, graphic and textual forms by a large-screen multifunction LCD;
• Direct, convenient and rapid operation of six navigation function keys;
• Both data and power flowing on the same lead, no need for external power;
• Real-time data monitoring and remote load switchover of the controllers, and data
browse and modification of device parameters, charge control parameters and load
control parameters;
• Real-time display and acoustic alarm of failure information of the connection devices;
• Longer communication distance based on RS485.
Main functions
• Functions like the real-time monitoring of the operational data and working status of
a controller, the browse and modification of charge/discharge control parameters, the
setting of device parameters and load control parameters and the restoration of factory
defaults, based on LCD display and functional key operation.
Recommendations
• Solar charge controller SC300D suitable for use with solar charge controller part
numbers SC320 & SC330.
• Please do not install SC300D in a situation with strong electromagnetic interference.
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INSTALLATION
Frame Mount Dimensions
Surface Mount Installation
Step1: Locate and drill screw holes based
on the frame mounting dimension
of the base, and erect the plastic
expansion bolts.
Step 2: Use four ST4.2×32 self-tapping screws
to fix the Frame.
Step 3: Use four M4×8 pan head screws to
mount the frame to the surface.
Step 4: Mount the four associated screw plugs
into the screw holes.
Flush Mount Installation
Step 1: Locate and drill screw holes based on
the installation size of the surface.
Step 2: Use four M4×8 cross recessed pan
head screws with M4 nuts to mount
the remote control unit to the
chosen surface.
Step 3: Mount the four associated white
screw plugs into the screw holes.
Note: Take full consideration of the plugging/
unplugging space of the communication cable
and the length of the cable during installation
to see if they are appropriate.
114
(4.49)
36.1
(1.42)
114
(4.49)
88.6
(3.49)
32.7
(1.29)
Mechanical Parameter
parameter
Overall 114 x 114 x 32.7mm
dimension 4.49 x 4.49 x 1.29 inches
Mounting 88.6x 88.6mm
dimension 3.49 x 3.49 inches
Terminal 4.3
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PRODUCT OVERVIEW
Front View
Rear View
Display
screen
Buttons
Communication
indicator
AlarmFailure indicator
RS485 communication and power interface
RS485
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Failure indicator
Failure indicator flashes in case of failure of the connection devices.
For failure information please check the Controller Manual.
Alarm
Fault audible alarm, could be activated or deactivated.
Communication indicator
Indicate communication status when MT50 is connected with the controller.
Display screen
Man-machine interaction operation interface.
Buttons
The Meter buttons includes four navigation buttons and two operational buttons.
See the specific directions in the Operation section of this manual.
RJ45 communication and power interfaces
Communication and power supply cable interfaces, used for communication connection
with controllers.
Note: Please use the communication plug which is marked with “MT” to connect MT50
Monitoring screen
Day and night icons
Night， Day: The threshold voltage is 1V. Higher than 1V is daytime.
Charge current icon
The icon is dynamically if there is charge current.
Battery icon
The battery capacity is dynamically displayed based on the SOC value calculated
by the contoller.
Note: When the battery is in over discharge status, the icon displayed is“
”.
Battery status icons
Normal voltage, Under voltage, Over discharge.
Day and
night icons
PV vol. and
cur. values
Battery vol. and cur. values
Load vol. and
cur. values
Battery icon
Load current
icon
Charge
current icon
Battery status
Icons Load
status icon
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