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• All the wires should not be twisted together. The power line should be equipped with the related
wiring terminals. Communication line should be far away from the power line in order to prevent
interference of communication signal transmission.
• When the device needs to be moved, please make sure that all the connections are tight. The virtual
connection may lead to heat accumulation or even a serious fire.
• Avoid the battery positive and negative electrode short circuit which may cause explosion.
• Never connect the battery terminalof the controller to PV terminal. Otherwise it will burn out the
controller.
• The metal part of the connection terminal is forbidden to touch by hand, so as to avoid electric
shock.
• Do not connect the positive and negative poles wrong. The controller will not work due to reverse
connection protection function.
• The controller power supply is from the battery, so the controller must be connected to the battery
not directly to photovoltaic system.
• Installation place should be well-ventilated and dry.
C. Wiring diagram
Picture 9 Wiring diagram of controller in single operation
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