03.06
2.2 Climatic and mechanical environmental conditions
2-27
© Siemens AG, 2006. All rights reserved
SINUMERIK 840D Configuring Manual NCU (PHD) – 03.06 Edition
Backup batteries must only be transported in the original packaging. No special
authorization is required to ship backup batteries. The lithium content is approxi-
mately 300 mg.
Note
The backup battery is classified as a hazardous substance, Class 9, in
accordance with the relevant air-freight transportation regulations.
!
Danger
Incorrect handling of backup batteries can lead to a risk of ignition, explosion
and combustion. The stipulations of EN 60086-4, in particular regarding
avoidance of mechanical or electrical tampering of any kind, must be complied
with.
For more information on handling batteries, see Chapter 8.1.
2.2.2 Operating conditions
If the specified values cannot be maintained, then a heat exchanger or air con-
ditioner must be provided.
Table 2-4 Climatic environmental conditions to EN 60721–3–3, Class 3K3
Temperature range
0 to 55 °C
Temperature change max. 0.5 K Within 1 minute
Relative humidity 5 to 90 %
Permissible change in the
relative air humidity
max. 0.1% Within 1 minute
Moisture condensation
and ice formation
Not permitted
Dripping water, spray,
splash water, water jets
Not permitted
Supply air Without caustic gases, dusts and oils
Air pressure 1060 to 920 kPa 0 to 1000 meters above mean sea
level
Derating At altitudes of 1000 to 4000 m above SL, the upper limit
temperature is to be lowered by 3.5 °C/500 m.
Shipment of
backup batteries
Climatic
environmental
conditions
2 Connection Conditions
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