Grounding Connections - WEG CFW501 Serie Manual Del Usuario

Installation and Connection
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" (refer to the
„
section 7.2 ACCESORIOS) can be mounted in the lower part of the cabinet.
3.3 shows a detailed example of the connection 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
„
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.).
16 | CFW501
CFW500-KPCSA
Figure
table B.1.