Elektor HRD 1/2T, Operating And Safety Instructions Manual

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Z2 U2
U1 Z1
L1 N L1 N
Z2 U2
U1 Z1
W2 U2 V2
U1 V1 W1
W2 U2 V2
U1 V1 W1
(L3) (L1) (L3) (L1)
L1 L2 L3 L1 L2 L3
EN
Operating and assembly instructions HRD www.elektror.com
9016309 01.20/13
in the delivery, this must be installed between the
converter and the motor. Please ensure that there
is su ffi cient space in the switch cabinet and take
into account the installation and assembly require-
ments in the operating instructions of the frequen-
cy converter/motor fi lter manufacturer.
• The maximum cable length between the mo-
tor and switch cabinet frequency converter (e.g.
Lenze Vector, Omron MX2 and Omron RX) must
not exceed 20 m. Maximum cable lengths of up to
3 m are permitted with Kostal INVEOR frequency
converters installed close to the motor and up to
10 m with Lenze MOTEC frequency converters.
Further information on wall mounting close to the
motor can be found in the original operating and
assembly instructions of the respective frequen-
cy converter manufacturer. The electrical con-
necting cables between the motor and frequency
converter in the above cases must be suitable
shielded cables, laid using the shortest route and
without clamping and plug-in connections and
connected correctly at both sides.
• The shielding braid in the connecting cables
must be connected fully, continuously and on
both sides, i.e. to the frequency converter and
motor, and at low resistance and permanently to
protective earthing systems or the main earthing
bus bar. Suitable EMC cable glands must be used
for this on the motor side and also on the INVEOR
wall mounting plate, if necessary.
• It is important to ensure that the solid con-
nection of the device to the protective earthing
system or several suitable earthing lines is at low
resistance and permanent for blowers installed
with electrical insulation (e.g. through vibration
dampers, compensators, insulated pipes, etc.) for
frequency converter operation.
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 Con fi guration for three-phase current 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.

circuit Y circuit
(low voltage) (high voltage)
Threaded bolt Tightening torque
M4 1,2 Nm
M5 2,0 Nm
M6 3,0 Nm
M8 6,0 Nm
Checking the direction of rotation
Switch on the blower. The running direction of the impeller
should correspond to the direction arrow on the housing. If
the impeller rotates in the wrong direction, then interchange
L1 and L3.
Star-delta start-up
Motors with ratings of above 3.0 kw are suitable for star-delta
start-up on the mains supply. For direct on-line starting (high
short circuit current at the instant the motor is energised),
please contact your local utility for details of conditions.
3.4.2 Con fi guration for single-phase a.c. blowers
Clockwise rotation Anti-clockwise rotation
3.5 Special con fi gurations and additional clamps
For voltage interchangeable motors, pole-changeable mo-
tors, FU motors and other special con fi gurations of three-
phase a.c. motors and a.c. motors, terminal diagrams are
supplied with the terminal boxes of the motors. This also
applies to the optional thermal winding protection and the
space heater.
3.6 Declaration concerning the EMC Directive (2014/30/EU)
Our blowers are components that are designed to be in-
stalled in other machines or systems by quali fi ed personnel,
i.e. not intended for consumers. The manufacturer of the
fi nal system/machine must guarantee/con fi rm that the fi nal
system/machine complies with the EMC Directive.
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).
Blowers with frequency converter operation (FU):
Prior to the start-up and during operation of the device on a
frequency converter (provided that this is suitable) it is es-
sential that the EMC instructions from the frequency convert-
er manufacturer and the information in the Elektror operating
and assembly instructions are observed in order to meet the
requirements of the EC “Electromagnetic Compatibility” Di-
rective 2014/30/EU.
If the device is delivered together with a frequency converter
package for switch cabinet or wall mounting closer to the mo-
tor, it is possible to comply with EN 61800-3 category C2 (In-
dustrial environments), taking into consideration the above-
mentioned EMC instructions.
Warning!
This product may cause high-frequency inter-
ference in a residential environment that may
require screening measures.
Blowers with an in-built frequency converter (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-