Operating Conditions - Siemens SINUMERIK 840D sl Equipment Manual

Rules for handling backup batteries
Incorrect handling of backup batteries can lead to a risk of ignition, explosion and
combustion
The stipulations of DIN EN 60086-4, in particular regarding avoidance of mechanical or
electrical tampering of any kind, must be complied with.
• Do not open a battery. Replace a faulty battery only with the same type.
• Only purchase the batteries through Siemens (see Table 2-3 Ordering data for spare parts /
accessories (Page 22)).
• Always try to return low batteries to the manufacturer or deliver these to a registered
recycling company.
4.2.2

Operating conditions

The components of the SINUMERIK 840D sl system are intended for a weatherproof, fixed
location. The documented environmental conditions apply to the climate in the immediate
vicinity of the units and to the entry of the cooling air. They exceed the requirements according
to EN 60204-1, EN 61800-2, EN 61131-2 and IEC 62477-1.
Table 4-2
Ambient conditions
Climatic environmental conditions
Climate class
Limit temperatures at
100% load
Relative humidity
(without condensa‐
tion)
Condensation, icing,
drip, spray and splash
water
Max. installation alti‐
tude
Biological, chemical and mechanical influences, pollutants
Biological environmental conditions
NCU 7x0.3B PN
Equipment Manual, 10/2020, 6FC5397-1EP40-6BA1
WARNING
Ambient conditions for operation
Application areas
Better than class 3K3 According to EN 60721‑3-3
0 °C ... 55 °C
5% to 95% (60% when corrosive gases and/or dusts are present)
Not permitted
1000 m above sea
level
2000 m above sea
level
> 2000 m ... 5000 m
above sea level
4.2 Climatic and mechanical environmental conditions
Remarks
From an altitude of 2000 m, the max. ambient temper‐
ature decreases by 7° C for every 1000 m increase in
altitude - derating.
Without thermal derating
With insulation
Clearances for an operating voltage of 50 V at 5000 m
Class 3B1 according to EN 60 721‑3‑3:
Mold, mold growth, slime, rodents, termite and other
animal vermin are not permissible.
Application planning
37