WEG CFW700 User Manual - page 24

CFW700 | 19 

Installation and Connection

E

ng

lis

h

3.2.4 Grounding Connections

DANGER!

The inverter shall be connected to a Protective Ground (PE).

 Use the minimum ground wiring gauge as indicated in the 

Table B.1 on page 

212

, 

Table B.2 on page 213

 and 

Table B.3 on page 214

.

Connect the inverter grounding connections to a ground bus bar, to a single 

ground point, or to a common grounding point (impedance ≤ 10 Ω).

The neutral conductor of the network shall be solidly grounded; however, 

this conductor shall not be used to ground the inverter.

It is necessary to use a copper cable with 10 mm

2

 minimum or 2 cables with 

the same wire gauge as specified in 

Table B.1 on page 212

, 

Table B.2 on 

page 213

 and 

Table B.3 on page 214

 for connecting the inverter to the 

ground protection to be in accordance with IEC61800-5-1 since the leakage 

current is greater than 3.5 mA AC.

3.2.5 Control Connections

The control connections (analog inputs/outputs and digital inputs/outputs), shall be performed 

in connector XC1 of the CC700 Control Board. Functions and typical connections are presented 

in 

Figure 3.5 on page 21

.