Power / Grounding Wiring And Fuses - WEG CFW700 Manual Del Usuario

Installation and Connection
R/L1 S/L2 T/L3 DC-
Ground
(f) Frame size E with degree of protection IP55
Figure 3.1: (a) to (f) Power terminals and grounding points - frame sizes A to E

3.2.2 Power / Grounding Wiring and Fuses

ATTENTION!
Use proper cable lugs for the power and grounding connection cables.
Refer to Table B.1 on page
recommended wiring and fuses and
terminals.
NOTE!
The gauges values presented in
and Table B.3 on page 214
maximum permitted voltage drop shall be considered for the proper wiring sizing.
Input fuses
The fuses to be used at the input must be HS (High-Speed) type with I
„
value indicated in the
page 214 (consider extinction current value in cold situation (it is not the fusion value)), to
protect the inverter diode rectifiers and input wiring.
In order to meet UL requirements, use class J fuses at the inverter supply with a current not
„
higher than the values presented in
Table B.3 on page 214.
14 | CFW700
BR DC+ U/T1 V/T2 W/T3
Ground
212, Table B.2 on page 213
Table B.5 on page 223
Table B.1 on page
are for reference only. Installation conditions and the
Table B.1 on page 212,
Table B.1 on page
and Table B.3 on page 214
for the specifications of the power
212, Table B.2 on page 213
2
Table B.2 on page 213
212, Table B.2 on page 213
for the
t equal or lower the
and Table B.3 on
and