Design Guide | iC2-Micro Frequency Converters Mechanical Installation Considerations
Table 46: Operating Environment Specifications (continued)
Environment Specifications
Dust, fiber, and air-
borne particles
IP20/Open Type and IP21/UL Type 1 (IP21/Type 1 conversion kit as option) enclosures are not protected against
dust, fibers, and other airborne particles, and should be installed in locations where these are not present, or in
a dedicated enclosure.
Make sure that airborne particles are not clogging the heat sink and fan, because clogging limits the cooling of
the drive. The drive detects clogging and reduces performance or stops operation. Do not install the drive in a
location where it is exposed to conductive particles.
For more information, see 4.2.7.1 Overview of Ambient Conditions.
For more information on heat sink and fan maintenance, see 6.6.4 Heat Sink and Fan Maintenance and Service.
Gases When installing the drive, exposure to gases must be observed. The drive is not intended to be installed in a
location where it is exposed to explosive gases. If exposed to corrosive gases, relevant precautions must be
taken. These precautions include selecting a drive with a higher protection degree, adding protective coating
as an optional selection to the drive, or by installing the drive in a protective cabinet.
For more information, see 4.2.7.1 Overview of Ambient Conditions.
6.6 Maintenance Considerations
6.6.1 Regular Maintenance
During the lifetime of the drive, regular maintenance or service actions may be needed, and access to relevant parts of the drive must be
ensured.
CAUTION
HOT SURFACES
The drive contains metal components that are still hot even after the drive has been powered off. Failure to
observe the high-temperature symbol (yellow triangle) on the drive can result in serious burns.
l Be aware that internal components, such as busbars, may be extremely hot even after the drive has been
powered off.
l Do not touch exterior areas that are marked by the high-temperature symbol (yellow triangle). These
areas are hot while the drive is in use and immediately after being powered off.
Typical cases for maintenance include:
l Checking the I/O signal on the drive.
l Regularly checking the power connections and grounding.
l Reading data or parameterizing by connecting a PC to the drive.
6.6.2 Preventive Maintenance Recommendations
Generally, all technical equipment, including Danfoss AC drives, need a minimum level of preventive maintenance. To ensure trouble-free
operation and long life of the drive, regular maintenance is recommended. It is also recommended as a good service practice to record a
maintenance log with counter values, date, and time describing the maintenance and service actions.
Danfoss recommends the following inspections and service intervals for air-cooled drives/systems.
Danfoss A/S © 2024.08 AJ402315027937en-000401 / 130R1239 | 65
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