Siemens SIMOTICS XP 1LA5 Compact Operating Instructions page 32

Installation
5.2.2 Cooling
WARNING
Overheating and failure of the motor
Death, severe injury or material damage can occur if you do not carefully observe
the following points.
Do not obstruct ventilation.
•
Prevent the air expelled by neighboring equipment from being immediately
•
sucked in again.
For machines with a vertical type construction with air entry from above, prevent
•
the ingress of foreign bodies and water in the air entry openings (standard IEC /
EN 60079-0).
If the shaft extension is facing upwards, liquid must be prevented from entering
•
by moving along the shaft.
WARNING
Damage caused by small parts falling in
Material damage and injury can occur if the fan is destroyed and therefore the
motor overheats.
For types of construction with the shaft extension facing downwards, prevent
•
small parts from falling into the fan cover by providing suitable covers (standard
IEC / EN 60079-0).
Prevent the cooling airflow from being reduced as a result of covers that might
•
be in place.
Table 5-2 Minimum dimension "X" for the distance between neighboring modules
and the air intake of the machine
Frame size
63 ... 71
80 ... 100
180 ... 200
225 ... 250
280 ... 315
104
112
132
160
X
[mm]
15
20
25
30
40
90
100
110
Explosion-protected machines
56100000002002, 01/2016