Possible cross sections of terminals for control section
For all types
rigid
fl
exible
Modulation
0,25 - 1,5 mm
2
0,25 - 1,5 mm
2
Indication relays
0,08 - 2,5 mm
2
0,08 - 2,5 mm
2
MODBUS
0,14 - 1,5 mm
2
0,14 - 1,5 mm
2
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 suf
fi
cient 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
≥
4 and
≤
16 A
According to EN 61000-3-2 these devices are to be classi
fi
ed as
“
professional
”
devices.
Connection to a low voltage supply (public networks) is allowed insofar as this has been clari
fi
ed 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 speci
fi
cations (
Technical data and nameplate af
fi
xed to the side).
The neutral conductor connection
“
N
”
is only available for the device types with
22 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
fl
ow through the
“
PE
”
conductor connection, undesirable erroneous activation may occur
on systems equipped with FI circuit breakers.
Attention!
•
Not suitable for IT system!
•
Do not operate on Grounded Delta System!
•
To activate the on current limitation, you must wait at least 90 seconds after switching off the line
voltage before switching back on!
Operating Instructions
Fcontrol
–
model series FXDM
Electrical installation
L-BAL-E072-GB 1642 Index 008
Part.-No.
16/105
