Cabinet Anti-Condensation Heating (Option L55) - Siemens Sinamics G120P Operating Instructions Manual

4.9.8

Cabinet anti-condensation heating (option L55)

Description
The anti-condensation heating is used at low ambient temperatures and high levels of
humidity to prevent condensation forming.
A 100 W heating unit is installed with 400/600 mm cabinet panels, two heating units of 100
W each are installed with 800/1000 and 1200 mm cabinet panels. The power supply (110 to
230 VAC) must be provided externally and protected with a fuse of up to 16 A.
Danger to life due to dangerous voltage when cabinet anti-condensation heating is used
When the cabinet anti-condensation heating is connected, dangerous voltages are present
in the cabinet unit even when the main circuit-breaker is open. Touching live parts can
result in death or severe injury.
• Observe the general safety rules when working on the device.
Danger of injury through contact to hot surfaces on the cabinet anti-condensation heating
In operation, the cabinet anti-condensation heating can reach high temperatures, which can
cause burns if touched.
• Allow the cabinet anti-condensation heating to cool down before starting any work.
• Use the appropriate personnel protection equipment, e.g. gloves.
Note
Provide power supply
The supply voltage can be provided using a temperature control on the system to avoid
unnecessarily operating the anti-condensation heating for higher ambient temperatures.
Connecting up
Table 4- 39
Terminal
Max. connectable cross-section: 4 mm
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A
WARNING
CAUTION
Terminal block X240 – connection for cabinet anti-condensation heating
Designation
1 L1
2 N
3 PE Protective conductor
2
Electrical installation
4.9 Other connections
Technical data
110 to 230 VAC
Power supply
113