Siemens Simotics User Manual

Description of the planetary gearbox
2.2 Technical features and environmental conditions
Planetary gearboxes for servomotors
Operating Instructions, 09/2020, A5E50494253B AA
19
Technical features of SP+ and NP planetary gearboxes
SP+
NP
In a system with
1FK7
x
x
1FT7
x
-
Permissible temperature during transport
- 15 ... 55 °C
Permissible temperatures during storage
- 15 ... 55 °C
Permissible ambient temperatures in opera-
tion without derating
- 15 ... 40 °C
Maximum permissible operating tempera-
ture of the gearbox
90 °C
Mounting flange
IM B5
IM B14
Vibration severity grade acc. to IEC 60034-
14
A
Type of output shaft
Solid shaft with or without fitted key
Solid shaft with fitted key
2.2.2 Environmental conditions
You can classify the environmental conditions for stationary use at weather-protected
locations according to the standard DIN EN 60721-3-3.
With the exception of environmental influences "Low air temperature", "Low air pressure",
and "Condensation", the motor complies with climate class 3K4.
Table 2- 1 Permissible environmental conditions for the motor based on climate class 3K4
Environmental parameter
Unit
Value
a)
Low air temperature
°C
- 15
b)
High air temperature
°C
+ 40
c)
Low relative humidity
%
5
d)
High relative humidity
%
95
e)
Low absolute humidity
g/m
3
1
f)
High absolute humidity
g/m
3
29
g)
Rate of temperature change
1)
°C/min
0.5
h)
Low air pressure
4)
kPa
89
i)
High air pressure
2)
kPa
106
j)
Solar radiation
W/m
2
700
k)
Thermal radiation
-
-
l)
Air movement
3)
m/s
1.0
m)
Condensation
-
Not permissible
n)
Wind-driven precipitation
(rain, snow, hail, etc.)
-
-
o)
Water (other than rain)
-
See protection
class
p)
Formation of ice
-
-
1)
Averaged over a period of 5 min
2)
Conditions in mines are not considered.
3)
A cooling system based on natural convection can be disturbed by unforeseen air movements.
4)
The limit value of 89 kPa covers applications at altitudes up to 1000 m.

Siemens Simotics Specifications

General

Brand	Siemens
Model	Simotics
Category	Industrial Equipment
Language	English