2 Installation
2.1 Installation Site Check List
•
The frequency converter relies on the ambient air
for cooling. Observe the limitations on ambient
air temperature for optimal operation
•
Ensure that the installation location has sufficient
support strength to mount the frequency
converter
•
Keep the frequency converter interior free from
dust and dirt. Ensure that the components stay as
clean as possible. In construction areas, provide a
protective covering. Optional IP55 (NEMA 12) or
IP66 (NEMA 4) enclosures may be necessary.
•
Keep the manual, drawings, and diagrams
accessible for detailed installation and operation
instructions. It is important that the manual is
available for equipment operators.
•
Locate equipment as near to the motor as
possible. Keep motor cables as short as possible.
Check the motor characteristics for actual
tolerances. Do not exceed
•
300m (1000ft) for unshielded motor
leads
•
150m (500ft) for shielded cable.
2.2 Frequency Converter and Motor Pre-
installation Check List
•
Compare the model number of unit on the
nameplate to what was ordered to verify the
proper equipment
•
Ensure each of the following are rated for same
voltage:
Mains (power)
Frequency converter
Motor
•
Ensure that frequency converter output current
rating is equal to or greater than motor full load
current for peak motor performance
Motor size and frequency converter
power must match for proper overload
protection
If frequency converter rating is less than
motor, full motor output cannot be
achieved
2.3 Mechanical Installation
2.3.1 Cooling
•
To provide cooling airflow, mount the unit to a
solid flat surface or to the optional back plate
(see
•
Top and bottom clearance for air cooling must be
provided. Generally, 100-225mm (4-10in) is
required. See
for clearance
requirements
•
Improper mounting can result in over heating
and reduced performance
•
Derating for temperatures starting between 40
°
C
(104
°
F) and 50
°
C (122
°
F) and elevation 1000m
(3300ft) above sea level must be considered. See
the equipment Design Guide for detailed
information.
a
b
130BA419.10
Illustration 2.1 Top and Bottom Cooling Clearance
Enclosure
A2
A3
A4
A5
B1
B2
a/b (mm)
100
100
100
100
200
200
a/b (in)
4
4
4
4
8
8
Enclosure
B3
B4
C1
C2
C3
C4
a/b (mm)
200
200
200
225
200
225
a/b (in)
8
8
8
9
8
9
Table 2.1 Minimum Airflow Clearance Requirements
Installation
VLT
®
AQUA Drive
Operating Instructions
8
MG.20.M8.02 - VLT
®
is a registered Danfoss trademark
2
2
