Installation And Assembly; Electrical Connection - Herz HD140 Betriebsanleitung

3.2 Installation and assembly

Install the side channel blower so it is protected
•
against weather and sun exposure. Refer also to the
information on installation under 1.1, Designated use .
Do not expose to vibrations or shocks. Permissible
•
vibrational load on side channel blower: refer to ISO
14694, BV-3.
Standard side channel blowers with base: Bolt
•
securely to a level and fi rm surface at the place of
use, making sure that the surface has adequate load-
bearing capacity and avoiding vibration transmission
or vibrational load.
Side channel blowers placed on the rubber elements
•
provided must be secured against turning.
Blowers with motor (drive), belt drive and belt guard:
•
The buyer (plant manufacturer, operating company or
other customer) is solely responsible for safe, stable
installation and fastening in conjunction with the motor,
belt drive and belt guard to be provided by the
customer, and
standards and specifi cations.
Cover open intakes or outlets with protective grating
•
according to DIN EN ISO 13857.
The belt drive and rotating parts must be covered with
•
a belt guard according to DIN EN ISO 13857.
Ensure adequate
•
ambient temperatures:
Series version with a rated voltage (max. +/-10%
•
voltage tolerance) and a rated frequency of 50 Hz or
60 Hz:
Ambient temperature -20°C to +60°C
•
Special voltages, multi-voltage motors, FU compatible
•
versions, FUK versions, UL certifi ed appliances:
Ambient temperature -20°C to +40°C
•
The performance of the drive motor's ventilation
•
system must not be impaired by the installation
situation.

3.3 Electrical connection

Note!
The work described in this section may only be
performed by a qualifi ed electrician. Connect the
∗
appliance to the power supply in the terminal box
as per the wiring diagram and in compliance with
the applicable local regulations.
Three-phase or a.c. motors can be used as drive motors.
In the appliance designation, the letter D stands for threephase
a.c. and the letter E for single-phase a.c.
The drive motor must be protected using a motor
•
overload switch (this does not apply to frequency
converter operated appliances). Where appliances are
frequencyconverter-
temperature sensor
temperature switch (normally closed contact) must be
connected to the converter and evaluated.
Check that the mains voltage matches the ratings on
•
the nameplate.
The safety earth terminal can be found in the terminal
•
box.
Note!
For operation of the drive motor with a
•
frequency converter, the following points
should also be noted:
Motors may only be operated on a
•
∗
frequency converter if they have "/FU"
(which denotes "frequency converter
compatible") marked on the nameplate,
or if
"frequency
motors and confirmed.
BA HD140 V20 R11 10_2017 EU long.doc
for compliance with applicable
motor ventilation. Permissible
operated, the
(PTC resistor sensor)
they have been ordered
converter compatible"
∗
For further information about EMC compliant installation and
assembly, refer to the Operating and Assembly Instructions
issued by the frequency converter manufacturer.
3.3.1 Confi guration for three-phase current side channel
blowers
existing
or
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 housing.
The direction of the air fl ow must also match the directional
arrows on the silencer housing. If the impeller rotates in the
wrong direction, then interchange L1 and L3.
Star-delta start-up
Motors with an output above 3.0 kW are provided at the supply
mains for star-delta start-up. 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.
as
The maximum supply voltage of the
•
frequency converter is 400 V without a
motor filter. If longer wires and higher
converter supply voltages are used
and/or the max. pulse voltage (1300 Vpp)
at the motor terminals is exceeded,
suitable precautions, e.g. a motor filter,
must be taken to protect the motor.
Please consult the converter supplier in
this matter. If the motor filter is supplied
with the blower, it must be installed
between the converter and the motor.
Please make sure that there is sufficient
reserve space in the switch cabinet and
adhere to the guidelines for installation
and assembly in
instructions issued by the frequency
converter/motor filter manufacturer.
The wire running between the motor and
•
the frequency converter must not exceed
a length of 20 m, configured 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,
suitable EMC cable couplings must be
used on the motor side. They must
contact the cable shield around its full
circumference and
resistance.
the operating
have a low
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