Mechanical Mounting - Danfoss VLT FC 102 Series Design Manual

Mechanical Installation

5.1.4 Mechanical Mounting

All enclosure types allow side-by-side installation except
when a IP21/IP4X/TYPE 1 Enclosure Kit is used (see
chapter 3.1 Options and Accessories).
Side-by-side mounting
IP20 A and B enclosures can be arranged side-by-side with
no clearance required between them, but the mounting
order is important. Figure 5.1 shows how to mount the
5 5
frames correctly.
A2
Figure 5.1 Correct Side-by-side Mounting
If the IP 21 Enclosure kit is used on enclosure type A2 or
A3, there must be a clearance between the adjustable
frequency drives of min. 2 in [50 mm].
For optimal cooling conditions, allow a free-air passage
above and below the adjustable frequency drive. See
Table 5.4.
90
Design Guide
B3 B3
Danfoss A/S © Rev. 06/2014 All rights reserved.
Figure 5.2 Clearance
Enclosure type
a (ins [mm])
b (ins [mm])
Table 5.4 Air Passage for Different Enclosure Types
A2
1. Drill holes in accordance with the measurements
given.
2. Provide screws suitable for the surface for
mounting the adjustable frequency drive.
Retighten all four screws.
Figure 5.3 Proper Mounting with Backplate
a
b
A2/A3/A4/A5/B1 B2/B3/B4/C1/C3
3.94 [100] 7.87 [200]
3.94 [100] 7.87 [200]
1
C2/C4
8.86 [225]
8.86 [225]
MG11BC22