CPU 1515R-2 PN 6ES7515-2RM00-0AB0
6ES7515-2RN03-0AB0
CPU 1517H-3 PN 6ES7517-3HP00-0AB0
CPU 1518HF-4 PN 6ES7518-4JP00-0AB0
FS01 or higher 5,000m
The maximum "operating height above sea level" is described in the technical specifications
of the respective module. The product data sheets with daily updated technical specifications
can be found on the Internet (https://support.industry.siemens.com/cs/ww/en/ps/td) at
Industry Online Support. Enter the article number or the short description of the desired
module on the website.
For altitudes > 2000m, the following constraints apply to the maximum specified ambient
temperature:
Restrictions of the specified maximum ambient temperature in reference to the
installation altitude
Installation altitude Derating factor for ambient temperature
1)
-1000mto2000m 1.0
2000mto3000m 0.9
3000mto4000m 0.8
4000mto5000m 0.7
1)
Base value for application of the derating factor is the maximum permissible ambient temperature in
°C for 2000m.
NOTE
• Linear interpolation between altitudes is permissible.
• The derating factors compensate for the decreasing cooling effect of air at higher altitudes
due to lower density.
• Note the mounting position of the respective CPU in the technical specifications. The basis
is the standard IEC 61131-2:2017.
• Make sure that the power supplies you use are rated for altitudes > 2000m.
• The displays of the R/H CPUs are designed for an altitude of ≤3,000m. When operating
the device at altitudes >3,000m, you may experience problems with the CPU display in
rare cases; however, these do not affect operation of the CPU.
• The synchronization modules for the CPU 1517H-3 PN/CPU 1518HF-4 PN (sync module
1GBFO10m: 6ES7960-1CB00-0AA5, Sync module 1GBFO10 km:
6ES7960-1FB00-0AA5, Sync module 1 GB FO 40 km: 6ES7960-1FE00-0AA5) are also
released for 5000m.
Effects on the availability of modules
The higher cosmic radiation present during operation at altitudes above 2000m will also start
to have an effect on the failure rate of electronic components (the so-called soft error rate).
In individual cases this might result in a primary backup switchover.
363
Technical specifications
15.4 Mechanical and climatic ambient conditions
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD