3.2 Terminal box
Terminal box is either top or
side
mounted
(LHS
or
R
H
S
)
on the motor and can be rotated 4 times by
90º thus allowing for multiple
cable
entry possibilities.
3.3 Balancing and coupling of transmission elements
To ensure
a quiet and vibration free operation, proper axial and radial alignment of a balanced
transmission element (coupling, pulleys, fans, gear box, etc.) is essential.
As
standard, the
1
L
E
0
rotors are dynamically
balanced
using a half feather key
as
indicated
on
the
ratings name plate (H=Half Key).
Notice!
1)
The
transmission and coupling elements are required to be half-key
balanced
t
o
ensure
a vibration free
o
p
e
r
a
t
i
on.
2)
C
ou
p
li
ng
and motor temperature
c
on
s
i
d
e
r
a
t
i
on
s
must be taken into account
during alignment of the transmission.
3)
Key
must be fixed or removed from the motor shaft prior to starting if no trans-
mission is coupled.
Frame size ;
PP
The minimum distance between motor fan cover and adjacent object "X" is shown
below:
9
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