Power Connections; Input Connections - WEG CFW700 Manual Del Usuario

Optionally, slow blow fuses can be used at the input. They shall be sized for 1.2 x the rated
„
input current of the inverter. In this case, the installation is protected against short-circuit, but
not the inverter input rectifier. This may result in major damage to the inverter in the event of
an internal component failure.

3.2.3 Power Connections

PE
R
S
T
Power
Disconnect
supply
switch
The switch-disconnector is not necessary if the inverter has the DS optional item (with
„
switch-disconnector).

3.2.3.1 Input Connections

DANGER!
Provide a disconnect device for the input power supply of the inverter.
This device shall disconnect the input power supply for the inverter when needed
(for instance, during servicing).
ATTENTION!
The power supply that feeds the inverter shall have a solid grounded neutral.
In case of IT networks, follow the instructions described below.
PE R S T U V W PE
Fuses
Figure 3.2: Power and grounding connections
Installation and Connection
PE W V
Shielding
CFW700 | 15
U