15.4 Mechanical and climatic ambient conditions
Operating conditions
The S7-1500R/H redundant system is designed for stationary use in weather-proof locations.
The operating conditions are based on the requirements of IEC61131-2:2017:
•
OTH4
•
STH4 (R/H CPUs: Minimum ambient temperature -40°C, minimum relative humidity 5%)
•
TTH4 (R/H CPUs: minimum relative humidity 5%)
Test of mechanical ambient conditions
The table below provides important information with respect to the type and scope of the
test of ambient mechanical conditions.
Table 15-7Test of mechanical ambient conditions
Condition tested Test Standard Comment
Vibration Vibration test according
to IEC60068-2-6
(Sinus)
Type of oscillation: Frequency sweeps with a rate of change of 1
octave/minute.
5 Hz≤f≤8.4 Hz, constant amplitude 7 mm
8.4 Hz≤f≤150 Hz, constant acceleration 2 g
Duration of oscillation: 10 frequency sweeps per axis, along each of the 3
mutually perpendicular axes
Shock Shock, tested according
to IEC60068-2-27
Type of shock: Half-sine
Shock intensity: 15 g max., duration 11ms
Direction of shock: 3 shocks each in +/- direction, along each of the 3 per
pendicular axes
Continuous shock Shock, tested according
to IEC60068-2-27
Type of shock: Half-sine
Shock intensity: 250 m/s
2
peak value, 6ms duration
Direction of shock: 1000 shocks each in (+/-) direction, along each of the 3
mutually perpendicular axes
Reduction of vibrations
If the S7-1500R/H redundant system is exposed to severe shock or vibration, take appropriate
measures to reduce the acceleration or the amplitude.
We recommend installing the S7-1500R/H redundant system on damping materials (for
example, rubber-bonded metal mounting).
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Technical specifications
15.4 Mechanical and climatic ambient conditions
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD