3 Installation
3.5 Electrical Installation
64 DC1 variable frequency drive 12/13 MN04020003Z-EN www.eaton.com
Figure 38: Connection example IP66
Screened, four-wire cable is recommended for the motor cables. The green-
yellow line of this cable connects the protective ground connections from the
motor and the variable frequency drive and therefore minimizes the equal-
izing current loads on the shielding braid.
The following figure shows the construction of a four-wire, screened motor
line (recommended specifications).
Figure 39: Four-core, screened motor supply cable
a Cu screen braid
b PVC outer casing
c Drain wire (copper strands)
d PVC core insulation, 3 x black, 1 x green–yellow
e Textile and PVC fillers
If there are additional subassemblies in a motor feeder (such as motor
contactors, overload relays, motor chokes, sine filters or terminals), the
shielding of the motor cable can be interrupted close to these subassemblies
and connected to the mounting plate (PES) with a large area connection.
Free or non-screened connection cables should not be any longer than about
300 mm.
UVWL1/N L2/N L3
⏚⏚
≧ 90 mm
(≧ 3.54")
MotorMain
PES
To Next Page
Loading...
