3 Installation
3.6 Electrical Installation
DC1 Variable Frequency Drive 04/16 MN04020003Z-EN www.eaton.com 83
The following figure shows the construction of a four-wire, screened motor
line (recommended specifications).
Figure 46: Four-core, screened motor supply cable
a Cu screen braid
b PVC outer casing
c Flexible 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-shielded connection cables should not be any longer than about
300 mm (max. 500 mm).
￫
In the case of units with a frame size of FS1, FS2, or FS3,
the screened motor cable can also be connected using an
EMC cable bracket (DX-EMC-MNT…M)
Section 3.5.5, “EMC cable brackets“, page 72.
To Next Page
Loading...
