Mechanical Installation; Mechanical Installation Icombimaster - Siemens COMBIMASTER Reference Manual

COMBIMASTER & MICROMASTER Integrated
REFERENCE MANUAL

3. MECHANICAL INSTALLATION

WARNING
Take note of the general and regional installation and safety regulations regarding work
on high voltage installations (e.g. VDE). Adhere to relevant regulations regarding correct
use of tools and protective gear.
Use the lifting eyes provided if a motor is to be lifted. Do not lift machine sets by
suspending the individual machines! Always check the capacity of the hoist before lifting
any equipment.
Do not paint over the black case finish of the inverter as this will affect the units thermal
performance.
Take suitable precautions to prevent transmission elements from being touched. If the
COMBIMASTER is started up without a transmission element attached, the featherkey
must be secured in position to prevent it from flying off while the shaft is rotating.
3.1 Mechanical Installation I
Tighten down screw-in lifting eyes prior to
using the COMBIMASTER.
Stable foundations or mounting conditions
and a well balanced transmission element
are essential for quiet, vibration-free
running. It may be necessary to balance
the whole rotor and transmission element.
The rotors are dynamically balanced with a
full featherkey inserted as standard. Since
1991 the type of balance has been marked
on the drive end of the shaft (shaft end
face). F denotes balanced with full
featherkey; H denotes balanced with half
featherkey. Bear in mind the type of
balance when fitting the transmission
element.
Poor running characteristics can arise in
cases where the transmission elements
have a length ratio of hub length to shaft
end length < 0.8 and they run at speeds
greater than 1500 rpm. In such cases
rebalancing may be necessary, e.g. by
reducing the distance by which the
featherkey protrudes from the transmission
element and the shaft surface.
Please check the following prior to
commissioning :
•
The rotor turns freely without rubbing.
•
The motor is assembled and aligned
properly.
Siemens plc. 1999
© | G85139-H1731-U300-D2
COMBIMASTER
•
The transmission elements are adjusted
correctly (e.g. belt tension) and the
transmission element is suitable for the
given operating conditions.
•
All electrical connections, mounting screws
and connecting elements are tightened
and fitted correctly.
•
All protective conductors are installed
properly.
•
Any auxiliary equipment that might be
fitted (e.g. mechanical brake) is in working
order.
•
Protection guards are installed around all
moving and live parts.
•
The maximum speed is not exceeded.
The maximum speed is the highest
operating speed permitted. Remember
that motor noise and vibration are worse at
this speed and bearing life is reduced.
•
The above list is not meant to be
exhaustive - additional checks may also be
required.
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