5.3 EMC-compatible installation
5.3.1 Motor cable
The applicable standard for interference emissions is EN 61000-6-3. Compliance with this standard is
achieved through the use of an unscreened motor feed cable.
5.3.2 Control cables
Pay attention to sufficient distance from powerlines and motor wires to prevent interferences. The
control cable may not be longer than 30 m. Screened control cables must be used when the cable
length is longer than 20 m. When using a shielded cable connect the shielding to one side only, i.e.
only to the control unit with the protective ground (keep cable short and with as little inductance as
possible!).
5.3.3 Harmonics current for devices ≤ 16 A
According to EN 61000-3-2 these devices are to be classified as “professional” devices.
Connection to a low voltage supply (public networks) is allowed insofar as this has been clarified with
the respective energy supply company responsible.
5.3.4 Harmonics current and line impedance for devices > 16 A and ≤ 75 A
Extract from EN 61000-3-12, valid for equipments with rated current > 16 A and ≤ 75 A, connected to
public low-voltage systems.
This equipment complies with IEC 61000-3-12 provided that the short-circuit power S
SC
is greater than or equal
to R
SCE
x S
equ
at the interface point between the user's supply and the public system.
It is the responsibility of the installer or user of the equipment to ensure, by consultation with the distribution
network operator if necessary, that the equipment is connected only to a supply with a short-circuit power S
SC
greater than or equal to R
SCE
x S
equ
.
S
SC
Short-circuit power from line at the interface point between the user's supply and the public system
S
equ
Rated - apparent power for three phase devices: S
equ
= √3 x U
I
x I
equ
(U
I
= phase to phase voltage
Technical data “Line voltage”)
(I
equ
= rated current of the device
Technical data “Rated current input”)
R
SCE
Short-circuit ratio
For this devices: R
SCE
≥ 120
5.4 Mains connection
5.4.1 Line voltage
Power from the mains is connected to terminals: PE, L1, L2, L3 and N (depending on type). Here, it
must be strictly observed that the mains voltage lies within the allowable tolerance specifications (
Technical data and nameplate affixed to the side).
The neutral conductor connection “N” is only available for the device types with 22 A/25 A rated
current for the reduction of the leakage current. It is irrelevant for the device’s functionality, for those
supply networks without neutral conductors the connection is not required. Because however, higher
leakage currents can flow through the “PE” conductor connection, undesirable erroneous activation
may occur on systems equipped with RCD circuit breakers.
Danger due to electric current
Not suitable for IT system!
Do not operate on Grounded Delta System!
5.4.2 Required quality attributes for the mains voltage
Danger due to electric current
The mains voltage must comply with the EN 50160 quality characteristics and the defined standard
voltages in IEC 60038!
Operating Instructions Fcontrol Basic – model series FSDM2.5..50AM Electrical installation
L-BAL-E174-GB 1704 Index 005 Part.-No.
15/49
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