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Installation
5.2.4
AFE inverter (construction type J)
NOTE
Air cooling
5-8
Mounting surface
H
550
Side view
Fig. 5-6
Mounting dimension, construction type J
You can find a full set of dimension sheets for AFE inverters of type J in
the appendix.
These are identical to the dimension sheets for standard SIMOVERT
MASTERDRIVES VC inverters!
Door/roof openings
Explanation of "arcing short-circuit":
An underpressure is created in the openings of the cabinet doors due to
the flow of air. This is dependent on the volumetric flow and the
hydraulic cross-section of the openings.
The flow causes a build-up (over) pressure in the roof or in the top
cover.
As a result of the difference in pressure between the overpressure at
the top and the underpressure at the bottom of the cabinet, a flow of air
is created inside the unit, a so-called arcing short-circuit. This can be
stronger or weaker depending on the volumetric flow and the door/roof
opening cross-section.
Due to the air flow inside the AFE inverter, preheated air starts to enter
the heatsink which causes the equipment to overheat. In addition, a
different, more unfavorable operating point is set for the fan.
Cutouts for M8 / M10 screw
h
Elongated holes
9 x 12 construction type J
for M8 screws
b
800
Front view
6SE7087-6CX86-2BA1
Operating Instructions SIMOVERT MASTERDRIVES AFE
04.2006
Dimen-
Type
sions
[mm]
J
H
1400
h
1345
b
45
Siemens AG
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