Fault and Handling
Fault Phenomenon
Possible reason
Solution
LCD no display after connected with
battery
Battery Low
Battery Reverse Connection
The connection cut off
Please confirm the voltage of battery reconnect
the controller with battery firmly and correctly.
Full of sunshine vertical on solar panel,
no solar symbol and no charging symbol
on LCD.
The solar panel connection open
circuit, short circuit, or reverse
connected
Please check the cable of solar panels if they are
correct connection and firmly.
The controller displaying LVD
The battery is over discharging
Please check the system design is reasonable or
not. Please full charge the battery
The controller displaying Over Voltage
Protection of battery
The voltage of battery is too high
Please first cut off the solar panel and see if the
voltage get down normal level. If the fault do
not finish, please cut off the battery with
controller and reconnect again
Technical Data
Mode
TD4515TU
TD4615TU
System Voltage
12V/24V/48V Auto
PV Max input voltage
At minimum ambient temperature 150V(+25℃ ambient temperature
138V)
PV Max input power
12V 660W；24V 1320W；48V 2640W
12V 800W；24V 1600W；48V 3200W
MPPT Voltage range
(VBAT+2V)---120V
MPPT tracking accuracy
≥99.5%
Controller conversion efficiency
Max 98%
MPPT limited Power Output
Yes
Self-consumption
≤2W
Max Charging current
50A
60A
LVD
11.0V ADJ 9V….12V；×2/24V；×4/48V
LVR
12.6V ADJ 11V….13.5V；×2/24V；×4/48V
Float voltage
13.8V ADJ 13V….15V；×2/24V；；×4/48V
Boost voltage
14.4V ； ×2/24；×4/48V Battery Voltage less than 12.6V Start Boost2hours(Li-battery no)
Battery Over Voltage Protection 16.5V ；×2/24V；×4/48V
Reverse Connection Protection
YES
Controller Over Temperature
Protection
Yes，75℃ Start decrease charging current，85℃stop charging，65℃return to work
Charging Type
MPPT （It can support solar panel end start-up system）
Charge Control mode
3 stage：Bulk（MPPT），Boost，Float
Optional battery types
Lead Acid, Flood, Gel, Lithium iron phosphate, Ternary lithium battery
Temperature Compensation
-24 mV /℃ for 12V ；×2/24V；×2/24V；×4/48V（Li-battery no compensation）
Cooling mode
Natural heat dissipation of radiator
Working Temperature
-20℃---+50℃
Terminals scale
25mm
2
25mm
2
Waterproof grade
IP32
Size
277mm×243.8 mm×110.9mm
277mm×243.8 mm×110.9mm
Net weight
4.2KG
4.5KG
*If the controller operates in high temperature environment, please reduce the rating
Version No.：V202001
