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2.2.5
Ambient conditions for fixed operation
You can classify the ambient conditions for stationary use at weatherprotected locations
according to the standard DIN IEC 60721-3-3. The environmental effects and their limit
values are defined in various classes in this standard.
With the exception of "Low air temperature" and "Low air pressure" ambient parameters, you
can assign the motors to climatic class 3K3.
Table 2- 2
Ambient parameter
a)
b)
c)
d)
e)
f)
g)
h)
i)
j)
k)
l)
m)
n)
o)
p)
Averaged over a period of 5 min
1)
Conditions in mines are not considered.
2)
A cooling system based on natural convection can be disturbed by unforeseen air movements.
3)
The limit value of 78.4 KPa covers altitudes up to 2000 m.
4)
Additional ambient conditions applicable for the motors for stationary use at weather-
protected locations according to standard DIN IEC 60721-3-3 include.
Mechanically active ambient conditions
Mechanical ambient conditions
Naturally cooled 1FW6 built-in torque motors
Operating Instructions, 07/2017, 6SN1197-0AF02-0BP2
Ambient conditions are based on climate class 3K3
Low air temperature
High air temperature
Low relative humidity
High relative humidity
Low absolute humidity
High absolute humidity
Rate of temperature change
Low air pressure
4)
High air pressure
2)
Solar radiation (insolation)
Thermal radiation
Air movement
3)
Condensation
Wind-driven precipitation
(rain, snow, hail, etc.)
Water (other than rain)
Formation of ice
2.2 Technical features and ambient conditions
1)
Description
Unit
Value
°C
- 5
°C
+ 40
%
5
%
85
g/m
1
3
g/m
25
3
°C/min
0.5
kPa
78.4
kPa
106
W/m
700
2
-
-
m/s
1.0
-
Not permissible
-
-
-
See degree of
protection
-
-
Class 3S1
Class 3M3
31
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