HLS300 Power Share Module User Manual
HLS300 Power Share Module Version 1.4 2019-05-16 Page 14 of 14
9
INSTALLATION PRECAUTIONS
9.1 OUTPUT AND EXPAND RELAYS
All outputs are relay contact output type. If it needs to expand the relays, please add freewheel diode
to both ends of expand relay’s coils (when coils of relay have DC current) or, add resistance-capacitance
return circuit (when coils of relay have AC current), in order to prevent disturbance for controller or other
equipments.
9.2 AC INPUT
Current input must be connected to outside current transformer. And the current transf
ormer’s
secondary side current must be 5A. Meanwhile the phases of CT and input voltage must be correct,
otherwise the sampling current and active power may be incorrect.
NOTE:
When there is load current, transformer’s secondary side is prohibitted to have open circuit.
9.3 WITHSTAND VOLTAGE TEST
CAUTION!
When relay had been installed in control panel, if need the high voltage test, please disconnect relay
’s all
terminal connections, in order to prevent high voltage into relay and damage it.
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