Mounting; Acoustic Noise - GE AF-600 FP Series Design And Installation Manual

Installation

2.3.4 Mounting

•
Mount the unit vertically
•
The frequency converter allows side by side
installation
•
Ensure that the strength of the mounting location
will support the unit weight
•
Mount the unit to a solid flat surface or to the
optional back plate to provide cooling airflow
(see Illustration 2.3 and Illustration 2.4)
•
Improper mounting can result in over heating
and reduced performance
•
Use the slotted mounting holes on the unit for
wall mounting, when provided
•
For outdoor installations of Nema 4X / IP66
drives: The drive must be installed under a
suitable cover to protect from direct exposure to
sun, snow and ice.
Illustration 2.3 Proper Mounting with Back Plate
Item A in Illustration 2.3 and Illustration 2.4 is a back plate
properly installed for required airflow to cool the unit.
TM
AF-600 FP Design and Installation Guide
Illustration 2.4 Proper Mounting with Railings
NOTE
Back plate is needed when mounted on railings.

2.4 Acoustic Noise

The acoustic noise from the frequency converter
originates from three sources:
1.
2.
3.
The typical values measured at a distance of 1 m from the
unit:
Unit size
12
13
14
15
21
22
23
24
31
32
33
34
41h/43h/45h
42h/44h/47h
61/62/63/64
Table 2.3 Measured Values
* For 4x, 5x and 6x sizes, reduced fan speed is at 87%, measured at
200 V.
DET-768b
DC intermediate circuit coils.
Integral fan.
RFI filter choke.
At reduced fan
speed (50%) [dBA]
*
51
51
50
54
61
58
59.4
53
52
55
56.4
-
-
-
78
2 2
Full fan speed
[dBA]
60
60
55
63
67
70
70.5
62.8
62
65
67.3
-
72
75
80
15