Output Connections; Grounding Connections; Control Connections - WEG CF W100 Serie Manual Del Usuario

Installation and Connection

3.2.3.3 Output Connections

ATTENTION!
The inverter has an electronic motor overload protection that must be adjusted according to the
„
driven motor. When several motors are connected to the same inverter, install individual overload
relays for each motor.
The motor overload protection available in the CFW100 is in accordance with the UL508C/UL61800-5-1
„
standard.
ATTENTION!
If a disconnect switch or a contactor is installed at the power supply between the inverter and the
motor, never operate it with the motor spinning or with voltage at the inverter output.
The characteristics of the cable used to connect the motor to the inverter, as well as its interconnection and routing,
are extremely important to avoid electromagnetic interference in other equipment and not to affect the life cycle
of windings and bearings of the controlled motors.
Keep motor cables away from other cables (signal cables, sensor cables, control cables, etc.), according to
3.2.6 Cable Separation Distance on page
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
further details on the specifications of the connector signals, refer to
on page 29.
16 | CFW100 G2
18.
Figure B.1 on page
Figure 3.2 on page
Chapter 8 TECHNICAL SPECIFICATIONS
Item
95.
17. For