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Disconnect the system in the reverse order ❸ → ❷ → ❶
Step 3:
Grounding ❹
DR N series is a common-negative controller, where all the negative terminals of PV
array and battery can be grounded simultaneously or any one of the negative will be
grounded. However, according to the practical application, all the negative termi-
nals of PV array and battery needn’t to be grounded, but the grounding terminal on
controller’s shell must be grounded, which may effectively shield the electromagnetic
interference from the outside, and prevent some electric shock to the human body
due to the electrification of the shell.
Step 4:
Connect the remote temperature sensor cable ❺
Temperature sensor
(Model:RT-MF58R47K3.81A)
Remoter temperature sensor
(Model:RTS300R47K3.81A)
Connect the remote temperature sensor cable to the port ❹ and place the other
end close to the BATT1.
Step 2:
Wiring. Connect the system in the order of
❶ Starter batteryBATT2 →
❷ Main battery BATT1 →
❸ PV array in accordance with the above diagram
CAUTION: The BATT1 and BATT2 must be set at same voltage level, and
other situations are not supported for the moment.
CAUTION: For common-negative systems, such as a motorhome, it is
recommended to use a common-negative controller, but if in the common-
negative system, some common-negative equipment is used, and the
positive electrode is grounded, the controller may be damaged.
CAUTION: Follow the above instruction for wiring, otherwise, it may cause
the BATT2 system voltage identification error.
CAUTION: While wiring the controller do not turn on the breaker or fuse
and make sure that the poles of “+” and “-“ are connected correctly.
CAUTION: If an inverter is to be connected to the system, connect the
inverter directly to the battery.
CAUTION: If the remote temperature sensor is not connected to the
controller, the default temperature for battery charging or discharging is
250C without temperature compensation.