- NX series User's Manual POWER SUPPLY

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.
Di
stance
between cables
[m]
Shi
e
ld
e
d
cable
[m]
0.3
≤
50
1.0
≤
200
Continues on the next page