49
Chapter 6—Installation requirements
POWERXL SERIES VFD MN040002EN—February 2018 www.eaton.com
Connection to power section
Figure 31 shows the general connections for the frequency
inverter in the power section.
Three-phase input connection
Figure 31. Connection to power section
Line
Motor
Terminal designations in the power section
•
L1, L2, L3: Connection terminals for the supply voltage
(input, input voltage)
•
U, V, W: Connection terminals for the three-phase line to
the AC motor (output, frequency inverter)
•
PE: Connection for protective ground (reference potential).
PES with mounted cable routing plate for shielded cables
Ground connection
The ground connection is connected directly with the cable
clamp plates.
The shielded cables between the frequency inverter and the
motor should be as short as possible. Connect the shielding
on both ends and over a large surface area with protective
ground PES (Protective Earth Shielding). You can connect the
shielding of the motor cable directly to the cable clamp plate
(360 degrees coverage) with the protective ground.
The frequency inverter must always be connected to the
ground potential via a grounding cable (PE).
Figure 32. Grounding
,
L
L
PE
Stripping Length, FR0:
According to the chosen terminal
Mounting torque
FR0: M4*10, 14 in-lb (1.6 Nm)
Terminal
CAUTION
Before connecting the AC drive to mains make sure that
the EMC protection class settings of the drive are
appropriately made.
ote: N After having performed the change write “EMC level
modified” on the sticker included in the PowerXL
Series delivery (see Figure 33) and note the date.
Unless already done, attach the sticker close to the
name plate of the AC drive.
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