Safety information
2.5 Notes on liquid cooling
Installation and Operating Instructions SINAMICS G180
Operating Instructions, 02/2019, 4BS0751-007
19
CAUTION
Hot surfaces
Certain components (e.g. the heat sink or filter reactor) can become very hot during
operation. These components can remain hot for a long time after operation.
The anti-condensation heating (optional) is switched on when the inverter is not operating
and the limit value set for the temperature control is reached. Once activated, the anti-
condensation heating can generate a great deal of heat.
Contact with hot surfaces can cause injuries (such as burns to the skin).
Never touch hot components just after you have switched off the inverter. Always take the
appropriate precautions before touching any components.
2.5
Notes on liquid cooling
Follow the safety instructions for liquid-cooled converters.
WARNING
Electric shock as a result of defective cooling liquid system
Short circuits can develop in electrical installations when liquid escapes from cooling
circuits. This can result in death, serious injury or material damage.
•
Note the technical data of the liquid cooling system. You will find this data in Chapter
"Technical data of direct liquid cooling system" (Page 204) - and the technical data
sheet.
•
Note the information in section "Permissible substance values for the cooling water"
(Page 205).
•
Note the information in section "Liquid cooling" (Page 66).
•
Protect the cooling liquid circuits against excess pressure, e.g. by installing a relief
valve.
•
Make sure that the pipework installation and pressure testing procedures comply with
local safety regulations and national safety guidelines.
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