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52
Affinity User Guide
www.controltechniques.com Issue Number: 5
For sizes 4 to 6 it may be necessary to improve the rigidity of the through
panel mounting surface due to the larger distance between the top and
bottom mounting brackets and the need to maintain compression on the
gasket.
When the drive is mounted, if the gap between the drive flange (which
the gasket rests on) and the rear wall of the enclosure is
≥
6mm at any
point around the drive then the following methods can be used to
compress the gasket further:
1. Use a thicker panel for the mounting wall of the enclosure through
which the drive is mounted.
2. Use an internal backplate to pull the rear wall of the enclosure up to
the drive gasket. See Figure 3-48 for details. (Nylon washers are
supplied in the standard drive kit for sealing off any nut and bolt
mountings that exit through the rear wall of the panel).
3. If an internal backplate is not available a separate clamp can be
used to simulate option 2. See Figure 3-49. 4 off sealing clamps are
supplied in the drive kit box.
Figure 3-48 Option 2 for achieving IP54 (UL type 12 / NEMA 12) through-panel mounting
H
ol
es
e
qu
is
p
ac
e
d al
ong
len
g
th of
dr
iv
e
Backplate
Enclosure
rear wall
A
B
A
1
2
3 4 5
6
1
2
3
4
5
6
B
M8
M6
Table 3-5 Description of fixings
Table 3-6 Quantity of nylon washers supplied with the drive
Item
Description
Size
Quantity of M8 (A)
Quantity of M6 (B)
1
Bolt
1
0
3
2
Flat washer
2
0
3
3
Nylon washer (from kitbox)
3
0
4
4
Flat washer
4
4
4
5
Spring washer
5
4
4
6
Nut
6
4
4
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