ABB ACS355 series - Page 386

386 Technical data
Maximum
recommended
motor cable length
Operational functionality and motor cable length
The drive is designed to operate with optimum performance with the
following maximum motor cable lengths. The motor cable lengths may
be extended with output chokes as shown in the table.
Note: In multimotor systems, the calculated sum of all motor cable
lengths must not exceed the maximum motor cable length given in
the table.
EMC compatibility and motor cable length
To comply with the European EMC Directive (standard
IEC/EN 61800-3), use the following maximum motor cable lengths
for 4 kHz switching frequency.
Note 1: The internal EMC filter must be disconnected by removing
the EMC screw (see the figure on page 50) while using the low
leakage current EMC filter (LRFI-XX).
Note 2: Radiated emissions are according to C2 with and without an
external EMC filter.
Note 3: Category C1 with conducted emissions only. Radiated
emissions are not compatible when measured with standard
emission measurement setup and should be checked or measured
on cabinet and machine installations case by case.
Frame
size
Maximum motor cable length
m ft
Standard drive, without external options
R0 30 100
R1…R4 50 165
With external output chokes
R0 60 195
R1…R4 100 330
All frame
sizes
Maximum motor cable length, 4 kHz
m ft
With internal EMC filter
Second environment
(category C3
1)
)
30 100
With optional external EMC filter
Second environment
(category C3
1)
)
30 (at least)
2)
100 (at least)
2)
First environment
(category C2
1)
)
30 (at least)
2)
100 (at least)
2)
First environment
(category C1
1)
)
10 (at least)
2)
30 (at least)
2)
1)
See the terms in section Definitions on page 391.
2)
Maximum motor cable length is determined by the drive’s
operational factors. Contact your local ABB representative for the