13
EN
Operating and assembly instructions HRD BOOSTED
www.elektror.com
016341 03.14/07
Note!
The following information should also be ob-
served when operating the drive motor with a
frequency converter:
• Only motors must be used on the frequency
converter that are marked on the rating plate
with the option “FU,” “suitable for use with a
frequency converter” or that were ordered and
confi rmed as “suitable for use with a frequency
converter.”
• The frequency converter supply voltage must
only be a maximum of 400 V without the motor fi l-
ter. Appropriate measures, such as a motor fi lter
to protect the motor, must be installed with longer
cables, higher frequency converter supply volt-
ages and/or if the pulse voltages are exceeded
(max. 1,000 V for drive motors less or equal 0,75
kW and max. 1,300 Vpk for drive motors larger
then 0,75 kW ). Please contact the converter
supplier in this case. If a motor fi lter is included
in the delivery, this must be installed between
the converter and the motor. Please ensure that
there is suffi cient space in the switch cabinet and
take into account the installation and assembly
requirements in the operating instructions of the
frequency converter/motor fi lter manufacturer.
• The maximum cable length between the motor
and frequency converter must not exceed 20 m
and must be routed with an appropriate shielded
cable as directly as possible and without any
other clamp/plug connections.
• The shielding braid in the connecting cable
must be connected at low resistance to the earth-
ing system, continuously and on both sides, i.e.
on the frequency converter and motor. Appropri-
ate EMC cable glands should be used for this on
the motor side that provide contact with the entire
cable shield.
Further information on EMC-compliant installation and as-
sembly work can be found in the information in the operating
assembly instructions of the frequency converter supplier.
Checking the direction of rotation
Switch on the blower. The direction of rotation of the impeller
must correspond with the directional arrow on the housing.
3.3 Special Connections and Additional Terminals
Connection diagrams for FC-motors are included as part of
the delivery in the motor terminal box.
3.4 Declaration concerning the EMC Directive
(2004/108/EC)
Our blowers are components that are designed to be in-
stalled in other machines or systems by qualifi ed personnel,
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.
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 2004/108/EC, taking into ac-
count the standards EN 61000-6-4 (Emitted interference in
industrial environments) EN 61000-6-3 (Emitted interference
in residential environments).
Blowers with frequency converter operation (FC):
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 2004/108/EC.
If the device is delivered together with an Elektror switch cab-
inet frequency converter package, it is possible to comply
with the EN61800-3 category C2 (Industrial environments),
taking into consideration the above-mentioned EMC instruc-
tions.
Warning!
This product may cause high-frequency inter-
ference in a residential environment that may
require screening measures.
A CE conformity assessment with the relevant standards and
guidelines must be carried out in all cases before the start-
up.
4 INSTRUCTIONS FOR OPERATION
AND USE
4.1 Basic information
Please observe the instructions on the intended use, de-
scribed in 1.1, as well as the safety instructions described
in 1.2 to 1.11.
If the rated current of the drive motor is exceeded during op-
eration, check whether the mains voltage and frequency cor-
respond with the device data.
The device can only be restarted after the cause of the fault
has been identifi ed and eliminated following surge protec-
tion, such as triggering of the motor protection switch, trig-
gering of the PTC evaluation device with motors fi tted with a
resistor sensor or frequency converter surge protection with
FC applications.
With blowers that cannot be used over the whole character-
istic curve (max. fl ow rate, see rating plate), the motor can
be overloaded if the system resistance is too low (too high
power consumption). Restrict the fl ow rate in this case using
a throttle valve built into the pressure or air intake side.
The blower must not be subjected to any vibration stress or
impact force.
4.2 Frequency converter operation
A wide speed setting range is possible using a frequency
converter, whereby there is only a small speed difference be-
tween the idle running and the maximum load of the blower
depending on the load.
It is important the the converter meets the following re-
quirements to ensure trouble-free operation of the blow-
ers:
• Converter speed equal to or greater than the motor
output
*)
• Converter current equal to or greater than the motor
output
*)
• Converter output voltage equal to the motor rated voltage
• The converter pulse frequency should be 8 kHz as a lower
pulse frequency produces loud motor noises
• The converter must have a connection for temperature
sensors (PTC resistor sensors) or a temperature gauge
(break
contact)
*) Values, see rating plate
The motor can be operated in a delta or star connection
depending on the converter input voltage.
