Sinexcel PWS1-500KTL-NA, User Manual

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18 Chapter IV Device Installation
Cabinet and module need to be grounded reliably!
4.6.5 DC side wiring
1) Use a multi-meter to measure the voltage of storage battery port, and ensure that the voltage is within input voltage range
of storage inverter.
2) Disconnect DC switch at previous level. Wiring operation can be conducted after using a multi-meter to measure and confirm
that there is no voltage between positive and negative poles of DC input.
3) Connect the positive pole of storage battery to “DC+”.
4) Connect the negative pole of storage battery to “DC-”.
5) Confirm wiring firmness.
Danger
Disconnect DC distribution switch and ensure that there is no dangerous voltage in the system during wiring.
Attention
The positive and negative poles of batteries cannot be connected inversely. Before wiring, a multi-meter needs to be used for
measurement.
4.6.6
AC side wiring
1) Use a phase-sequence meter for measurement, and ensure that the phase consequence of wires should be a positive
consequence.
2) Disconnect AC output distribution switch at back level in storage inverter.
3) Use a multi-meter to measure and ensure that the cables connected to the terminals are electrically neutral.
4) During on-grid, A/B/C phases of AC output distribution switch of power grid.
If on/off-grid switching is to be achieved, extra power distribution unit and wires need to be added.
5) Confirm wiring firmness.
Warning
Ensure that there is no dangerous voltage at connection points during wiring.
Attention