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10.2 OVERALL DIMENSION AND PANEL CUTOUT
NOTE: Unit: mm.
HES7120-PV series controller can suit for wide range of battery voltage DC (8~35) V. Diameter of
wire that connects power supply with battery must be over 2.5mm
please firstly connect output wires of charger to battery's positive and negative directly, then, connect
wires from battery's positive and negative to controller's positive and negative input ports in order to
prevent charger disturbing the controller's normal working.
— OUTPUT AND EXPAND RELAYS: All outputs of controller are relay contact output type. If
expansion relays are needed, please add freewheel diode to both ends of expansion relay's coils
(when coils of relay has DC current) or, increase resistance-capacitance return circuit (when coils of
relay has AC current), in order to prevent disturbance to controller or other equipment.
— AC INPUT: Current input of HES7120-PV series controller must be connected to outside current
transformer. And the current transformer's secondary side current must be 5A. At the same time, the
phases of current transformer and input voltage must be correct. Otherwise, the current collected and
active power maybe not be correct.
— WITHSTAND VOLTAGE TEST: When controller had been installed on display window, if the high
voltage test is needed, please disconnect controller's all terminal connections, in order to prevent
high voltage getting into controller and damaging it.
NOTES:
a) ICOM port must be connected to negative pole of battery.
b) When there is load current, open circuit is prohibited on transformer's secondary side.
HES7120-PV Hybrid Engergy Controller
HES7120-PV HYBRID ENERGY CONTROLLER USER MANUAL
Fig.9 Overall Dimensions
2020-05-20
2
. If floating charger is configured,
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