Partitioning - Siemens SINAMICS G130 Engineering Manual

Component
Active Line Module
Frame size FX
Frame size GX
Frame size HX
Frame size JX
Motor Module
Frame size FX
Frame size GX
Frame size HX
Frame size JX
G130
Power Module
Frame size FX
Frame size GX
Frame size HX
Frame size JX
Cooling air requirement and cabinet opening sizes for SINAMICS chassis units

Partitioning

The devices must not be operated with an "air short-circuit", since this can damage the equipment or cause it to fail.
The suction caused by the fan leads to underpressure at the ventilation openings in the cabinet doors. This depends
on the strength of the air flow and the effective cross-section of the openings.
The air, which blows out of the top of the device, accumulates under the top cover / hood resulting in overpressure.
The pressure difference between the overpressure at the top of the cabinet and the underpressure at the bottom can
create an internal air flow from top to bottom (air short-circuit). This can vary in strength depending on the cross-
section of the doors and cover openings and the air flow of the fan.
Due to the flow of air within the cabinet, the fan of the device draws in pre-heated air. This causes a significant
temperature rise in the components and the fan of the device does not function effectively.
These problems can be prevented only by partitioning the cabinet. Partitions must be installed in such a way that no
air can flow along the outer sides on the top and the bottom of the devices. In particular, air must be prevented from
flowing from the top (warm outlet air) to the bottom (cold cooling air). Suitable plates can be used as partitions, for
example, which must reach up to the side panels or cabinet doors. A partition must be set up in such a way that the
General Engineering Information for SINAMICS
Rated power
132 kW at 400 V
160 kW at 400 V;
235-300 kW at 400 V
380-500 kW at 400 V;
560 kW at 690 V
630-900 kW at 400 V;
800-1400 kW at 690 V
110 kW at 400 V;
132 kW at 400 V;
75-132 kW at 690 V
160-250 kW at 400 V;
160-315 kW at 690 V
315-450 kW at 400 V;
400-560 kW at 690 V
560-800 kW at 400 V;
710-1200 kW at 690 V
110-132 kW at 400 V;
75-132 kW at 690 V
160-315 kW at 400 V;
110-200 kW at 500 V;
160-315 kW at 690 V
315-450 kW at 400 V;
315-400 kW at 500 V;
400-560 kW at 690 V
560 kW at 400 V;
500-560 kW at 500 V;
710-800 kW at 690 V
Engineering Information
Cooling air Minimum size of opening in cabinet
requirement
Inlet opening
[m³/s]
0.17
0.23
0.36
0.78
1.1
0.17
0.23
0.17
0.36
0.78
1.1
1.48
0.17
0.36
0.78
1.48
SINAMICS Engineering Manual - May 2008
Outlet opening
[m²] [m²]
0.1 0.1
0.1 0.1
0.16 0.16
0.28 0.28
0.4 0.4
0.1 0.1
0.1 0.1
0.1 0.1
0.16 0.16
0.28 0.28
0.4 0.4
0.55 0.55
0.1 0.1
0.16 0.16
0.28 0.28
0.55 0.55
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