Delta RPI-H3 Service Manual download pdf (Page 21)

5. Wiring

5.1 Preparation before Wiring

1. Make sure whether the voltage values, polarities are correct.

2. When grounding of the solar array is necessary, an isolation transformer is

required due to the RPI-H3/RPI-H5 not having a galvanic isolation between

the DC-input and AC-output.

3. The ground fault detection is a fixed internal setting. It always works and

can not be modified.

4. The whole system wiring is shown as in Figure 5-1.

 Please refer to Figure 5-1 for the connection. Inverter can accept DC

inputs in parallel (1 MPP tracker/2 parallel inputs).

Figure 5-1 Connection of system

WARNING！

！！

！ SHOCK HAZARD

●

Whenever a PV array is exposed to sun-light, a shock

hazard exists at the output wires or exposed terminals. To

reduce the risk of shock during installation, cover the array

with an opaque (dark) material and ensure that Disconnect

Device is set to OFF before commencing any wiring.

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Delta RPI-H3 Service Manual Page 21