This option is applicable when external exhaust ducting at the output of the blower to carry the
hot air blowing out of the drive cabinet outside the room.
When configuring the exhaust air ducts for the drive ventilation system, it is essential to ensure
that the air flow rates stipulated in the technical data are observed. The pressure drop between
the air inlet and air outlet of the drive is different for different versions. The additional pressure
drop due to the external exhaust air system must not be lower than 0Pa and higher than 50Pa.
Note
Connection of an external air duct
● Provide suitable openings in the air duct for changing the blowers
● Make sure that the cabinet doors can be opened and closed after mounting the air duct.
CAUTION
Values for sound pressure level
Depending on the design, the exhaust air system can affect the values for sound pressure
level. For further information contat your local Siemens partner.
See also
partner (www.siemens.com/automation/partner)
3.1.6.30 Harsh environment conditions (M67)
With option M67, the drive is equipped for harsh environment conditions (high humidity, tropical
or seaside location).
Note
This is not a marine certification compliant option.
Measures comprise:
● Aluminum parts coated or anodized
● Galvanized parts coated or replaced with stainless steel parts
● Double vacuum pressure impregnation (VPI) of the transformer (protection against salt-
mist, environment class 3C2 acc. to IEC60721-3-3)
● Paint finish for tropical conditions
● Coated printed circuit boards
3.1.6.31 Drive prepared for duct flange connection in rear (M68)
With option M64, the drive is prepared for connection to an external exhaust air system to the
rear of the blower assembly.
Description
3.1 Cabinet Details
SINAMICS PERFECT HARMONY GH180 6SR41 manufactured in NMA Nuernberg, Germany
50 Operating Instructions Rev.201706301306
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