SL2000-112 Manual

8
Front panel
①
DC Input Connection(-)
Follow the instructions to connect the battery cables to the DC input terminals of the unit. The cables
should be as short as possible (less than 6 feet / 1.8 meters ideally) so that they can handle the required
current in accordance with the Electrical Codes and Regulations. The size of the cable should be thick
enough to limit the voltage drop to less than 2% when carrying the maximum input current to prevent
frequent low-input voltage warnings, and shutdown. UVP (Under Voltage Protection) warning may result
if there is excessive voltage drop across the DC cables between the batteries and the unit. Increasing
your DC cable size will help improve the situation.
Batteries are capable of providing very large currents in case of short circuit. In case there is a short
circuit in the cable run between the batteries and the input terminals of the unit, it will result in
overheating / melting of the cables and consequent risk of fire and injury, to prevent possibility of this
hazard, use Very Fast Acting DC Fuse in line with the positive cable. The fuse should be as close to the
positive battery terminal as possible.
The following sizes of cables and fuses are recommended for up to 6 ft. distance between the batteries
and the unit. (Applies to both 120 VAC and 240 VAC versions)：
Model No.
Wire AWG
Inline Fuse
SL2000-112
# 2 / 0
400 A
SL3000-112
#4 / 0
700A
Connect DC input terminals to 12V battery or other DC power source.
[ + ] is positive, [ - ] is negative. Reverse polarity connection can blow the internal fuse and may damage
the unit.
WARNING!
Make sure that all the DC connections are tight (torque to 9 – 10 ft-lbs, 11.7 - 13 Nm).
Loose connections could result in overheating and can be a potential hazard.
CAUTION
The recommended inline fuse should be installed as close to the battery positive terminal
as possible failure to use a fuse on the “+” cable running between the unit and battery may
cause damage to the cable / unit.
Also, only use high quality copper wire and keep the cable length short which is as maximum of 3 – 6
feet.
②
DC Input Connection(+)
③
Power Switch
A momentary push-button switch that alternately turns the inverter On / Off.
④
INV./CHR. Mode LED
Indicator
LED status
Status
Solid Green
Inverting Mode
Blink Green
Charging Mode
⑤
STATUS LED Indicator
LED status
Status
Solid Green
Normal
Solid Red
Power off
Red Blink
Over Voltage Protection (Input DC voltage over spec.)
Red Fast Blink
Under Voltage Protection (Input DC voltage under spec.)
Orange solid
Over Load Protect / Short-circuit Protection
Orange Blink
Over Temperature Protection
Orange Fast Blink
Under Temperature Protection
⑥
DIP Switch
Factory Setting only
⑦
RS-232 / Remote
control port
RS-232 Port：Serial port monitoring and control through computer interface.
Remo control port：connector to CR-20.
⑧
Battery Temperature
Sensor port
The unit is delivered with a battery temperature sensor. When the battery temperature is high, the charge
voltage is automatically decreased.