Epsolar ET2415N - Page 14

Page 10
The included remote temperature sensor RTS300RA is recommended for effective
temperature compensated charging. Connect the RTS300RA to the10
th
port
(MC1.5-3.81-2L) on the controller (see figure 2-1). There is no polarity, so either
wire (+ or -) can be connected to either screw terminal. No damage will occur if
connect the RTS300RA to the remote battery voltage sense port, but the connection
will not be recognized.
Step 2: Remote Battery Voltage Sensor Connection
NOTE: When connecting, please pay attention to ‘+’ and ‘-’
CAUTION: Be careful when installation. Please never plug the voltage
sensor wires into to the RTS300RA terminals (10th Port) It will cause
an alarm or damage the controller.
The voltage at the battery terminals on the controller may differ slightly from the real
battery voltage due to connection and cable resistance. The remote battery voltage
sensor will enable the controller to detect the battery voltage more exactly and avoid
voltage tolerance. Connect the remote battery voltage sensor wires to the 11
th
port
(MC1.5-3.81-2L) on the controller (see figure 2-1). A battery voltage sensor
connection is not required to operate the controller, but it is recommended for best
performance.
The voltage sensor wires should be cut to the length as required. The wire size can
range from 0.25 to 1.0 mm
2
(24 to 16 AWG). And maximum length is 3m. A twisted
pair cable is recommended but not required.
Please be careful to ‘+’ and ‘-’ when connecting. No damage will occur if the polarity
is reversed, but the controller can’t read a reversed sensor voltage.
Step 3: Network Connection
WARNING: Shock Hazard! The network cables and the power
conductors must be as far away as possible.