Lenze EVS9332xS - Manual (Page 87)

Wiring of the standard device
Notes on project planning
Motor cable
5
5.2
5.2.10
l
5.2−8 EDSVS9332S EN 6.0−07/2013
5.2.10 Motor cable
ƒ The used motor cables must
– meet the requirements on site (e.g. EN 60204−1, UL),
– comply with the following voltage data: EN 0.6/1 kV, UL 600 V.
ƒ For shielded motor cables, only use cables with braid made of tinned or
nickel−plated copper. Shields made of steel braid are not suitable.
– The overlap rate of the braid must be at least 70 % with an overlap
angle of 90°.
ƒ Use low−capacitance motor cables:
Power class Capacitance per unit length
Core/core Core/shield
3 ... 11 kW from 2.5 mm 2 £100 pF/m £ 150 pF/m
15 ... 30 kW £ 140 pF/m £ 230 pF/m
45 ... 55 kW £ 190 pF/m £ 320 pF/m
75 ... 90 kW £ 250 pF/m £ 410 pF/m
9300 Maximum permissible motor cable length
U
r
= 400 V U
r
= 480 V
Type f
chop
= 8 kHz f
chop
= 16 kHz f
chop
= 8 kHz f
chop
= 16 kHz
EVS9321−xS,
EVS9322−xS 50 m 45 m 50 m 25 m
EVS9323−xS ...
EVS9332−xS 50 m 50 m 50 m 50 m
)
Note!
ƒ The motor cable must be as short as possible for having a
positive effect on the drive behaviour.
ƒ If EMC requirements must be met, the permissible cable
length may be affected.
ƒ EVS9321−xSand EVS9322−xS: At a mains voltage of 480 V and
a switching frequency f
chop
= 16 kHz, the maximum
permissible cable length is reduced if the motor cable has
more than a single core:
– The following holds true for two parallel single cores:
l
max
= 17 m
– The following holds true for three parallel single cores:
l
max
= 9 m
Specification
Cable length