Project planning guide
cyber
®
reaction wheel 2
en-12
Doc. no.: 5022-D060586
Revision: 02
2.1.8 Environmental conditions
The cyber
®
reaction wheel 2 can be stored on the ground for 2 years before use.
Environmental conditions
Unit
Value
Operating ambient temperature range
°C
-
40 … 85
2
Survival ambient temperature range
°C
-
40 … 100
Nominal ambient temperature range
3
°C
0 … 55
Max. radiation dose
Gy
200
Minimum ambient pressure
mbar
10
-8
Table 7: permitted ambient conditions
2.1.9 Vibration/shock
The drive system fulfills the following specifications:
•
Vibration according to DIN EN 60068-2-6:2008
-
Frequency range 5 Hz
– 2000 Hz
-
Acceleration: 1 g
– 8 g
•
Broadband noise according to DIN EN 60068-2-64:2008
-
Frequency range 20 Hz
– 2000 Hz
-
Acceleration RMS: 7.5 g
•
Shock according to DIN EN 60068-2-27:2009
-
Shock form: semi-sinusoidal
-
Acceleration: 40 g
-
Shock duration: 3 ms
2.1.10 Electromagnetic Compatibility (EMC)
The system meets the requirements for interference immunity according to EN 61000-4-3
(electromagnetic HF field) and EN 61000-4-4 (fast transients) as well as interference emissions
according to EN 55011 (interference voltage at the power supply connection and radiated
interference emission).
2
At 85 °C, a permanent acceleration and deceleration of 10 rev/s² is possible for the speed range from -1500 rpm to 1500 rpm.
Between 1500 rpm and 10000 rpm, a permanent acceleration and deceleration of 60 rev/s² is possible.
3
In this temperature range, the crw can be operated continuously over the complete speed range with the maximum
acceleration of 60 rev/s² if the thermal connection is sufficient.
