
Technical Data Vector Control Chassis Type Frequency Converter
476 869 4070 76 J AB-74 Siemens AG
4-18 Operating Instructions SIMOVERT MASTERDRIVES
* The sound level was determined under the following boundary
conditions:
♦
Distance to the unit 1m, height above floor level 1 m, distance to the
next reflecting wall 4 m, room height 6 m.
♦
The chassis were installed in Siemens 8MC cabinets without any
special soundproofing measures.
Fan voltage/frequency V/Hz 230/50 230/60
Current requirement A 2.45 3.6
Sound pressure level IP20 dB(A) Table values Table values + 1.0
Sound pressure level IP42 dB(A) Table values Table values + 0.5
Sound pressure level IP54 dB(A) Table values Table values
Table 4-11 Operating data of fan
4.4 Venting the heat sinks
The position of the connecting elements is shown in the annex
"Dimension drawings" of the VC Compendium.
♦
Venting must be performed when the equipment is disconnected
from the supply.
♦
Dismantle the lock screw in front of the actual vent valve.
♦
Perform venting.
♦
Close the vent cock.
♦
Tighten the lock screw again.
♦
Check for tightness.
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