Nx Networks NX series - Manual (Page 32)

32(86) Cabling and connections
6
6.1.2 Installation instructions
1 Before starting the installation, check that none of the components of the
frequency converter are live.
2 If the frequency converter is installed outside either a switchgear,
separate cubicle or electrical room, it must be equipped with a protection
cover (see e.g. Figure 6-4) as provided by the regulations for IP21
protection class. For installations in a switchgear, separate cubicle or
electrical room, the cable protection plate is normally not necessary.
3 Place the motor cables sufficiently far from other cables:
! Avoid placing the motor cables in long parallel lines with other
cables
! If the motor cables runs in parallel with other cables, note the
minimum distances between the motor cables and other cables
given in the table below.
! The given distances also apply between the motor cables and
signal cables of other systems.
! The maximum length of the motor cables is 300 m (level H,
units with power greater than 1.5 kW) and 100 m (units with power
from 0.75 to 1.5 kW).
! The motor cables should cross other cables at an angle of 90
degrees.
4 If cable insulation checks are needed, see Chapter 6.1.4.
Distance
between cables
[m]
Shielded
cable
[m]
0.3 ≤ 50
1.0 ≤ 200
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