Operating Environment; Mounting Configurations - Danfoss VLT AutomationDrive FC 361 Series Design Manual

Mechanical Installation Con...

6.3 Operating Environment

In environments with airborne liquids, particles, or
corrosive gases, ensure that the IP/Type rating of the
equipment matches the installation environment. For
specifications regarding ambient conditions, see
chapter 5.4 Ambient Conditions.
NOTICE
CONDENSATION
Moisture can condense on the electronic components
and cause short circuits. Avoid installation in areas
subject to frost. Install an optional space heater when
the drive is colder than the ambient air. Operating in
standby mode reduces the risk of condensation as long
6 6
as the power dissipation keeps the circuitry free of
moisture.
NOTICE
EXTREME AMBIENT CONDITIONS
Hot or cold temperatures compromise unit performance
and longevity.
•
Do not operate in environments where the
ambient temperature exceeds 55 °C (131 °F).
•
The drive can operate at temperatures down to
-10 °C (14 °F). However, proper operation at
rated load is only guaranteed at 0 °C (32 °F) or
higher.
•
If temperature exceeds ambient temperature
limits, extra air conditioning of the cabinet or
installation site is required.
6.3.1 Gases
Aggressive gases, such as hydrogen sulphide, chlorine, or
ammonia can damage the electrical and mechanical
components. The unit uses conformal-coated circuit boards
to reduce the effects of aggressive gases. For conformal-
coating class specifications and ratings, see
chapter 5.4 Ambient Conditions.
6.3.2 Dust
When installing the drive in dusty environments, pay
attention to the following:
Periodic maintenance
When dust accumulates on electronic components, it acts
as a layer of insulation. This layer reduces the cooling
capacity of the components, and the components become
warmer. The hotter environment decreases the life of the
electronic components.
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VLT® AutomationDrive FC 361
Keep the heat sink and fans free from dust build-up. For
more service and maintenance information, refer to the
operating guide.
Cooling fans
Fans provide airflow to cool the drive. When fans are
exposed to dusty environments, the dust can damage the
fan bearings and cause premature fan failure. Also, dust
can accumulate on fan blades causing an imbalance which
prevents the fans from properly cooling the unit.

6.4 Mounting Configurations

Table 6.1 lists the available mounting configurations for
each enclosure. For specific panel/wall mounting or
pedestal mounting installation instructions, see the
operating guide. See also chapter 5.8 Exterior and Terminal
Dimensions.
NOTICE
Improper mounting can result in overheating and
reduced performance.
Enclosure
J8
J9
Table 6.1 Mounting Configurations
1) Can be wall-mounted, but Danfoss recommends that the drive is
panel-mounted inside an enclosure due to its protection rating.
Mounting considerations:
•
•
•
•
•
•
Danfoss A/S © 03/2019 All rights reserved.
Wall/cabinet mount
1)
X
1)
X
Locate the unit as near to the motor as possible.
See chapter 5.5 Cable Specifications for the
maximum motor cable length.
Ensure unit stability by mounting the unit to a
solid surface.
Ensure that the strength of the mounting location
supports the unit weight.
Ensure that there is enough space around the
unit for proper cooling. Refer to chapter 3.5 Back-
channel Cooling Overview.
Ensure enough access to open the door.
Ensure cable entry from the bottom.
Pedestal mount
(Standalone)
–
–
MG06K102