Siemens SIMATIC TI500 Especificaciones Pagina 93

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4-10
Installing 575 System Hardware SIMATIC 545/555/575 System Manual
4.6 Installing the PPX:5752130 VMEbus Base
Figure 4-4 shows the physical dimensions of the PPX:5752130 VMEbus
base. This base is designed to be mounted and operated in the horizontal
orientation only.
12.22
(310)
19.0 (483)
17.68 (449)
Optional fan assembly
9.58 (243)
Measurements: in. (mm)
Figure 4-4 VMEbus Base Physical Measurements
The VMEbus base conforms to DIN 41494 and IEC 297 standards which
define the requirements for equipment mounted in standard 19-inch rack
cabinets. The base is a 7U high (12.25-in.) unit. Figure 4-5 shows the
measurements required for front panel or 19-inch cabinet mounting. Leave
clearance of at least 3 inches above and below the base for cooling.
You must remove the rear mounting brackets and the ground lug in order to
install the unit in a 19-inch rack or the front panel cutout shown in
Figure 4-5. After installing the base, re-install the ground lug to the side of
the base to provide a proper grounding connection. (Refer to Chapter 2,
Figure 2-14, for proper placement of the grounding lug.)
12.25
(311)
18.31 (465)
17.72 (450)
0.272
(6.9)
8 holes
3.50 (89)
3.50 (89)
2.25 (57)
1.50 (38)
0.295
(7.5)
diameter
Measurements: in. (mm)
Figure 4-5 19 Rack or Front Panel Mounting Measurements for Base
Mechanical
Outline
Mounting
Measurements
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