Eltek Valere Theia He-t Guía de instalación descargar pdf (Pagina 21)

Installation Guide THEIA HE-t String Inverters 357115.033, Issue 2.0, 2011 March 21

2.3.4.1. Connection Procedures

Figure 2.3.14: Customer connection area with AC terminals

1. AC terminal block:

• GND: Ground terminal

• N: Neutral terminal (TN/TT)

or Phase terminal (IT)

• L: Phase terminal

2. Cable gland

• The AC conductors must be sized for the correct temperature and sunlight resistance. Use

copper wire with a maximum cross-section area of 16 mm

/ 6 AWG. Ensure compliance

with the relevant national electrical regulations!

• The AC conductor resistance should be minimized.

• Unscrew the cable gland locknut.

• Guide the AC cable through the opening, and connect the conductors to the corresponding

terminals in the connection area:

• Phase conductor (L1 or L2 or L3) to L

• Neutral conductor (TN/TT) or Phase conductor (IT) to N

• Grounded conductor to GND

• Tightening torque of the terminal screws is between 1.2-1.5 Nm / 0.89-1.11 lbft.

• Double check if the connection is correctly carried out.

• Hand-tighten the gland locknuts to seal the cable gland.

2.3.5. Network Connections

The inverter is equipped with two communication interfaces; Ethernet and CAN. Ethernet

provides communication between the integrated web server and a computer, either directly or

via a router/switch. CAN allows communication between several inverters.

Figure 2.3.15: Network connections

1. Slave inverter

2. Master inverter

3. CAN bus

4. Ethernet

5. Computer

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Eltek Valere Theia He-t Guía de instalación Pagina 21