Elektror 2SD series Betriebs- Und Montageanleitung Seite 13

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instructions of the frequency converter/motor
fi lter manufacturer.
• The wire running between the motor and the
frequency converter must not exceed a length of
20 m, confi gured as a suitable, shielded cable and
laid by as direct a route as possible, without any
additional plug/clamp connections.
• The braided screen in the connecting cable
must cover the full length of the cable on both
sides, i.e. be connected to the earthing system at
the frequency converter and to the motor using a
low electrical resistance. For this purpose, suit-
able EMC cable couplings must be used on the
motor side. They must contact the cable shield
around its full circumference and have a low
resistance.
For further information about EMC compliant installation and
assembly, refer to the Operating and Assembly Instructions
issued by the frequency converter manufacturer.
3.4.1 Confi guration for three-phase current side
channel blowers
Warning!
Danger due to loose or improperly tightened con-
nections!
Improperly tightened and loose connections
cause electric shocks, fi res, property damage and
personal injuries!
Check for loose connections and tighten in
accordance with the tightening torques in the fol-
lowing table.
W2 U2 V2
U1 V1 W1
L1 L2 L3
(L3) (L1)
-circuit
(low voltage)
Threaded bolt
M4
M5
M6
M8
Checking the direction of rotation
Switch on the side channel blower. The running direction of
the impeller should correspond to the direction arrow on the
side channel blower cowling. The direction of the air fl ow
must also match the directional arrows on the silencer hous-
ing. If the impeller rotates in the wrong direction, then inter-
change L1 and L3.
Star-delta start-up
Motors with an output above 3.0 kW are provided at the sup-
ply mains for star-delta start-up. For direct on-line starting
(high short circuit current at the instant the motor is ener-
gised), please contact your local utility for details of condi-
tions.
Operating and assembly instructions 1SD, 2SD
3.4.2 Confi guration for single-phase a.c.
3.4.3 Additional clamps
Terminal diagrams for temperature switch (normally-closed
contact) can be found in the motor terminal box.
3.5 Declaration concerning the EMC Directive
Our side channel blowers are components that are designed
to be installed in other machines or systems by qualifi ed per-
sonnel, i.e. not intended for consumers. The manufacturer
of the fi nal system/machine must guarantee/confi rm that the
fi nal system/machine complies with the EMC Directive.
Side channel blowers with mains operation:
With mains operation to a sinusoidal AC voltage, the asyn-
chronous motors with a squirrel-cage rotor that are built into
the devices meet the requirements of the EC "Electromag-
netic Compatibility" Directive 2014/30/EU, taking into ac-
count the standards EN 61000-6-4 (Emitted interference in
industrial environments) and EN 61000-6-3 (Emitted interfer-
ence in residential environments).
W2 U2 V2 Side channel blowers with frequency converter opera-
tion (FU):
Prior to the start-up and during operation of the device on a
U1 V1 W1
frequency converter (provided that this is suitable) it is es-
sential that the EMC instructions from the frequency convert-
L1 L2 L3
er manufacturer and the information in the Elektror operating
(L3) (L1)
and assembly instructions are observed in order to meet the
Y circuit requirements of the EC "Electromagnetic Compatibility" Di-
(high voltage)
rective 2014/30/EU.
If the device is delivered together with a frequency converter
Tightening torque
package for switch cabinet or wall mounting closer to the mo-
1,2 Nm
tor, it is possible to comply with EN 61800-3 category C2 (In-
2,0 Nm dustrial environments), taking into consideration the above-
mentioned EMC instructions.
3,0 Nm
6,0 Nm
Side channel blowers with an in-built frequency con-
verter (FUK):
Devices with an in-built frequency converter meet the re-
quirements of the EC "Electromagnetic Compatibility" Direc-
tive 2014/30/EU under consideration of EN 61800-3 Catego-
ry C2 (industrial environment), taking into account the EMC
instructions from the frequency converter and the information
in the Elektror operating and assembly instructions .
side channel blowers
Z2 U2
U1 Z1
L1 N
Clockwise rotation
(2014/30/EU)
Warning!
This product may cause high-frequency inter-
ference in a residential environment that may
require screening measures.
Warning!
This product may cause high-frequency inter-
ference in a residential environment that may
require screening measures.
Z2 U2
U1 Z1
L1 N
Anti-clockwise rotation
EN
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