Grounding Connections - WEG CFW-11 User Manual

Installation and Connection
Connection of the motor cable shield to ground
The CFW-11 inverter series has some accessories that make the connection of the motor cable shield to the
ground easier, resulting in a low impedance connection for high-frequencies.
There is an option accessory for frame sizes A, B, and C with degree of protection IP2X named "Kit for power
cables shielding – PCSx-01" (refer to
bottom of the enclosure of these frames. See an example of the cable connection with the accessory PCSx-01
in Figure 3.15 on page
filters (CFW11XXXXXXOFA).
When the "Conduit Kit" (refer to
C, motor cable shield shall be grounded similarly as in
For frame size D with degree of protection IP2X/Nema1 and all models with degree of protection IP55, there
is a provision for motor cable shield grounding in the standard inverter enclosure.
3
Figure 3.15 - Detail of the motor cable shield connection with the accessory PCSx-01 installed

3.2.4 Grounding Connections

DANGER!
Do not share the grounding wiring with other equipment that operate with high currents (ex.: high
power motors, soldering machines, etc.). When installing several inverters, follow the procedures
presented in
DANGER!
Ne pas partager le câblage de mise à la terre avec d'autres équipements opérant avec des intensités
élevées (par ex: moteurs haute puissance, postes de soudure, etc.). Lors de l'installation de plusieurs
variateurs, appliquer les procédures présentées dans l'illustration
la connexion de mise à la terre.
ATTENTION!
The neutral conductor of the network shall be solidly grounded; however, this conductor shall not
be used to ground the inverter.
3-26 | CFW-11
Section 7.2 ACCESSORIES on page
3-26. The kit for power cables shielding is provided for the inverters with internal RFI
Section 7.2 ACCESSORIES on page
Figure 3.16 on page 3-27
7-3) is used for frame sizes A, B, and
Figure 3.15 on page
for the grounding connection.
Figure 3.16 à la page 3-27
7-3) that can be adapted in the
3-26.
pour