Siemens Simatic CFU Commissioning Manual page 135

Reduction of vibrations
If the described components are subject to big shocks or vibrations appropriate measures must
be taken to reduce the acceleration or the amplitude.
We recommend fixing the described components on damping materials (rubber-metal anti-
vibration mountings, for example).
Checking mechanical ambient conditions
The following table provides information on the type and scope of checks regarding mechanical
environmental conditions.
Table 12-6 Checking mechanical ambient conditions
Tests for ... Test standard
Vibrations Vibration test to
IEC 60068‑2‑6 (sine)
Shock Shock, tested to
IEC 60068‑2‑27
Climatic environmental conditions
The described components can be used in the following climatic environmental conditions:
Table 12-7 Climatic environmental conditions
Ambient condi‐ Permitted range
tions
Temperature From -40°C to 70°C
(without enclo‐
sure)
CFU in enclo‐ from -40°C to 60°C
sure also SI‐
MATIC CFU
Bundle in alumi‐
num enclosure
SIMATIC CFU
Commissioning Manual, 07/2018, A5E39252870-AC
Remark
Type of vibration: Frequency sweeps with a rate of change of 1 octave/minute.
● 5 Hz ≤ f ≤ 8.4 Hz, constant amplitude 3.5 mm
● 8.4 Hz ≤ f ≤ 150 Hz, constant acceleration 9.8 m/s2
Period of oscilla‐ 10 frequency sweeps per axis in each of the 3 axis which
tion: are vertical to each other.
Type of shock:
● half-sine
Strength of shock: ● Peak value 150 m/s
● Duration 11 ms
Direction of the
● 3 shocks each in +/– direction in each of the 3 axes that
shock:
are vertical to each other
Remarks
Mounting requirement
Horizontal installation
Vertical installation;
Slot X2 must be at the top.
Mounting requirement
Horizontal installation
Vertical installation;
Slot X2 must be at the top.
Technical specifications
12.1 General technical specifications
2
Ambient temperature of
the CFU
> 60 °C to <= 70 °C
1)
- 40 °C to <= 60 °C
1)
- 40 °C to <= 60 °C
1)
Ambient temperature of
the CFU
> 50 °C to <= 60 °C
1)
- 40 °C to <= 50 °C
1)
- 40 °C to <= 50 °C
1)
Permissible load
current
Max. 1 A
Max. 2 A
Max. 2 A
Permissible load
current
Max. 1 A
Max. 2 A
Max. 2 A
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