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9-2
Application Notes
9.2
Air Humidity
9.3
Vibration and Shock
Vibration
Ambient climatic conditions are defined into different classes according to
DIN EN 60721-3-3 (1995), Table 1. They are based on observations
made over long periods of time throughout the world and take into
account all influencing quantities that could have an effect, such as the air
temperature and humidity.
Based on this table, Rexroth recommends class 3K4 for continuous use
of the motors.
This class is excerpted in the following table.
Environmental factor
Low air temperature
High air temperature
Low rel. air humidity
High rel. air humidity
Low absolute air humidity
High absolute air humidity
Speed of temperature
change
1
) Rexroth permits 0°C as the lowest air temperature.
Fig. 9-2:
Classification of climatic environmental conditions according to DIN
EN 60721-3-3, Table 1
Sine-shaped vibrations occur in stationary use; depending on their
intensity, they have different effects on the robustness of the motors.
The robustness of the overall system is determined by the weakest
component.
According to DIN EN 60721-3-3 and DIN EN 60068-2-6, the following
values are approved for Rexroth IndraDyn A motors:
Amplitude
Direction
0 – 55 Hz
axial
0.3 mm
radial
0.75 mm
Fig. 9-3:
Maximum values for sine-shaped vibrations
Rexroth IndraDyn A
Unit
Class 3K4
°C
°C
%
%
g/m³
g/m³
°C/min
Acceleration
55 – 2000Hz
1 m/s²
30 m/s²
(10 m/s² in connection with M2/S2
encoders)
DOK-MOTOR*-MAD/MAF****-PR03-EN-P
1
+5
)
+40
5
95
1
29
0,5
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