Grounding Connections - WEG CFW500 Serie Manual Del Usuario

When using shielded cables to install the motor:
Follow the safety recommendations of IEC 60034-25.
„
Use the low impedance connection for high frequencies to connect the cable shield
„
to the grounding. Use parts supplied with the inverter.
The accessory "CFW500-KPCSx power and control cable shielding kit" can be mounted
„
in the lower part of the cabinet.
of the power supply and the motor cable shield to the accessory CFW500-KPCSA.
Besides, this accessory allows the connection of the control cable shield.
Figure 3.3: Details of the connection of the power supply and the motor cable shield to the accessory

3.2.4 Grounding Connections

DANGER!
The inverter must be connected to a protection grounding (PE).
„
Use grounding wiring with a gauge at least equal to that indicated in
„
table
The maximum tightening torque of the grounding connections is of 1.7 N.m
„
(15 lbf.in).
Connect the grounding points of the inverter to a specific grounding
„
rod, or specific grounding point or to the general grounding point
(resistance ≤ 10 Ω).
The neuter conductor that powers up the inverter must be solidly
„
grounded; however, this conductor must not be used to ground the
inverter.
Do not share the grounding wiring with other equipment that operate
„
with high currents (e.g. high power motors, soldering machines, etc.).
Figure 3.3
CFW500-KPCSA
B.1.
- English -
Installation and Connection
shows a detailed example of the connection
CFW500 | 15