Electrical Installation; Surface Mounting; Din-Rail Mounting; Identification Of The Power Terminals And Grounding Points - WEG CFW300 User Manual

Installation and Connection
As a reference, Table 3.1 on page 10
Cooling Method: internal fan with air flow upwards.

3.1.2.2 Surface Mounting

Figure B2 on page 117

3.1.2.3 DIN-Rail Mounting

The CFW300 inverter can also be mounted directly on a 35 mm-rail, in accordance with
DIN EM 50.022. For further details, refer to

3.2 ELECTRICAL INSTALLATION

DANGER!
The following information is merely a guide for proper installation. Comply with
„
applicable local regulations for electrical installations.
Make sure the AC power supply is disconnected before starting the installation.
„
The CFW300 must not be used as an emergency stop device. Provide other
„
devices for that purpose.

3.2.1 Identification of the Power Terminals and Grounding Points

The power terminals can be of different sizes and configurations, depending on the model of
the inverter, according to
control connections are shown in
Description of the power terminals:
L/L1, N/L2, L3 (R,S,T): power supply connection.
„
U, V and W: connection for the motor.
„
-UD: negative pole of the DC power supply.
„
+UD: positive pole of the DC power supply.
„
+BR, BR: connection of the braking resistor (available for frame size B models).
„
PE: grounding connection.
„
The maximum tightening torque of the power terminals and grounding points must be checked
in Figure B3 on page 118.
10 | CFW300
shows the air flow of rated ventilation for each model.
Table 3.1: Air flow of the internal fan
Model CFM
A
17.0
B
illustrates the CFW300 installation procedure for surface mounting.
Figure B2 on page
Figure B3 on page
Figure B3 on page
I/s m /min
3
8.02 0.48
117.
118. The location of the power, grounding and
118.