Eltek Valere Theia He-t Guía de instalación descargar pdf (Pagina 20)

20 Installation Guide THEIA HE-t String Inverters 357115.033, Issue 2.0, 2011 March

2.3.3.4. Jumper Position for the System Grounding Setup

The jumper above the - NEG terminal in the customer connection area monitors the

arrangement of the DC connection according to the grounding setup. When delivered, the

jumper is positioned for an ungrounded string. Depending on the requirements from the

module manufacturer, the jumper must be pulled up and positioned correctly to match the

grounding of the DC conductors.

In case of discrepancy a message will appear in the display: “Fuse fault”.

Table 2.3.1: Jumper position for the grounding setup

Connection Area

From the

side

From

above

System

Ungrounded PV String

There is no connection between

the pins.

Positive grounded PV String

The jumper short-circuits pin 1 and

pin 2.

Negative grounded PV String

The jumper short-circuits pin 2 and

pin 3.

2.3.4. AC Side (Grid) Connections

Verify that the AC grid specifications are compatible with the inverter characteristics before

connecting the inverter to the grid:

• Single phase / Split phase

• Voltage range (184 – 276 V)

• Frequency range (50 Hz ±5 Hz)

DANGER: Ensure that the AC terminals are discharged!

Turn OFF the AC disconnector before connecting the inverter to the AC grid to

avoid shock hazards.

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Eltek Valere Theia He-t Guía de instalación Pagina 20