
3 Installation
3.5 Electrical installation
DB1 variable frequency drive
11/20 MN040031EN
Eaton.com
65
3.5.1 Connection to the power section
The connection to the power section is normally made via the connection
terminals:
•
L1/L, L2/N, L3, PE for the mains-side supply voltage.
The phase sequence does not matter.
•
U, V, W, PE for the connection to the motor
•
BR, DC+, PE for external braking resistor (only for frame size FS2)
Figure 34: Connection in power section (schematic)
The number and the arrangement of the connection terminals used depend
on the variable frequency drive’s size and model.
WARNING
The variable frequency drive must always be connected with
ground potential via a grounding conductor (PE).