Habasit Rossi 5REF, Руководство по эксплуатации

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35
Rossi
HB-1.0001 РЭ
2.3 Electric motor installation
Qualifi ed personnel:
All the activities on the unit or drive or near them may be performed by properly trained personnel
only.
The personnel shall be trained, instructed or authorized to switch on or off the electric circuits and
devices according to the safety norms, ground and mark them. The qualifi ed personnel shall be able
to manage the appropriate protection equipment and know the fi rst aid techniques.
Preparation:
Get prepared to installation of the electric motor as follows:
1. Prepare the tools, auxiliary materials, measuring and verifi cation equipment.
2. Check the absence of visible damages in all the components. Do not install damaged components.
3. Make sure that all the dimensions and tolerances are suitable for installation of the electric motor
(see the design documents for details).
4. All the components, installation surfaces and thread shall be clean.
5. Make sure that the installation will be performed in a dry and dust-free environment.
For handling the motor, use special eye bolts (in the provided locations) considering that they
are intended for lifting the motor only, but not other devices connected to it.
In addition, make sure that the load is appropriately balanced and the lifting equipment, fi xing
systems and cables of appropriate lifting capacity are provided for. If necessary, the weight of
motors is specifi ed in the technical catalogues by Rossi.
Installation:
When installing the electric motor, comply with the following items:
1. Make sure that the assembly to which the motor is attached, is balanced, aligned and properly
adjusted to ensure stable attachment and absence of motor vibrations (the vibration rates of Veff ≤
3.5 mm/s for PN≤ 15 kW and Veff ≤ 4.5 mm/s for PN > 15 kW are acceptable), considering all the
transmitted eff orts conditioned by the weight, torque, radial and axial loads.
When the threaded connections are used for attachment, the length of fastening screws shall
be chosen carefully to ensure the suffi cient length of engaged thread, but avoid damage to the
threaded socket or failure of the motor connection to the unit.
Attention! Service life of bearings as well as proper functioning of shafts and couplings also depend
on the shaft alignment. Therefore, the highest attention shall be paid to adjustment of the motor
and driven equipment (using liners, when necessary) with installing fl exible couplings as needed.
Misalignment may result in damage of shafts (which may cause serious injuries) and/or bearings
(which may lead to overheating).
Coupling surfaces (of the fl ange or legs) shall be cleaned and shall have the suffi
cient roughness
(approximately Ra ≥ 6,3 μm) to ensure the respective friction coeffi cient: Remove the paint available
on the coupling surfaces using a scraper or solvent.
In case of external loads, use pins or locking blocks, if necessary. When mounting the motor on
the machine, it is recommended to use locking adhesives on the fastening screws and on mating
surfaces.
The motor shall be positioned in a manner to ensure proper air circulation (on the fan side) for
cooling. So the following conditions shall be avoided:
- any obstructions to the air fl ow channels; – heat sources near the motor that may aff ect the
temperature of cooling air and of the motor (radiation);
– in general, insuffi
cient air circulation or applications hindering the steady dissipation of heat.
For outdoor installation, in dump or corrosive environments the IP55 protection degree is not
suffi cient to guarantee a proper application. In this case, make sure that:
– the motor is equipped with the condensate drain holes, in the right position (downwards) and
always open (except for washing);
the brake is with “Design for damp and corrosive environment” (”,UC” code stated on nameplate,
HBZ and HBF motors) and with “Stainless steel bolts and screws of brake” (”,DB” code
specifi ed on nameplate, HBZ motor);
– the anti-condensation heater, if present, shall be properly connected (see fi g. 1) for at least
2 hours before starting motor operation (never supply the heater during motor operation);
alternatively, a single-phase voltage equal to approx. 10% of the nominal connection
voltage applied to U1 and V1 terminals can replace the heater;