Grounding Connections; Control Connections - WEG CFW100 User Manual

Installation and Connection
When using shielded cables to install the motor:
Follow the recommendations of IEC60034-25.
„
Use the low impedance connection for high frequencies to connect the cable shield to the
„
grounding.

3.2.4 Grounding Connections

DANGER!
The inverter must be connected to a protective ground (PE).
„
Use a minimum wire gauge for ground connection equal to the indicated in
„
Connect the inverter grounding connections to a ground bus bar, to a single
„
ground point or to a common grounding point (impedance ≤ 10 Ω).
The neuter conductor of the line that feeds 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 voltage motors, welding machines, etc).

3.2.5 Control Connections

The control connections (digital inputs) must be made in accordance with the specification of
the connector of the CFW100 control board. Functions and typical connections are presented
in figure 3.2. For further details on the specifications of the connector signals, refer to
8 - Technical Specifications.
20 | CFW100
table B.1.
chapter