Installation; Planning The Installation Site; Pre-Installation Check List; Mechanical Installation - Danfoss FC 102 Operating Instructions Manual

Installation

3 Installation

3.1 Planning the Installation Site

NOTICE
Before performing the installation it is important to plan
the installation of the frequency converter. Neglecting
this may result in extra work during and after instal-
lation.
Select the best possible operation site by considering
the following (see details on the following pages and
the respective Design Guides):
•
Ambient operating temperature
•
Installation method
•
How to cool the unit
•
Position of the frequency converter
•
Cable routing
•
Ensure the power source supplies the correct
voltage and necessary current
•
Ensure that the motor current rating is within the
maximum current from the frequency converter
•
If the frequency converter is without built-in
fuses, ensure that the external fuses are rated
correctly
Voltage [V] Altitude restrictions
380-500 At altitudes above 3,000 m, contact Danfoss
regarding PELV
525-690 At altitudes above 2,000 m, contact Danfoss
regarding PELV
Table 3.1 Installation in High Altitudes

3.2 Pre-Installation Check List

•
Before unpacking the frequency converter, ensure
that the packaging is intact. If any damage has
occurred, immediately contact the shipping
company to claim the damage.
•
Unpack the frequency converter as close as
possible to the final installation site.
•
Ensure the model number number on the
nameplate corresponds to the model number on
the order.
•
Ensure that each of the following are rated for
the same voltage:
- Mains (power)
- Frequency converter
- Motor
MG16D302
Operating Instructions
•

3.3 Mechanical Installation

3.3.1 Cooling

•
•
•
The high-power frequency converters utilise a back-
channel cooling concept that removes heatsink cooling air,
which carries approximately 90% of the heat out of the
back channel of the frequency converters. The back-
channel air can be redirected from the panel or room
using one of the kits below.
Duct cooling
A back-channel cooling kit is available to direct the heat
sink cooling air out of the panel when an IP20/chassis
frequency converters is installed in a Rittal enclosure. Use
of this kit reduces the heat in the panel and smaller door
fans can be specified on the enclosure.
Cooling out the back (top and bottom covers)
The back-channel cooling air can be ventilated out of the
room so that the heat from the back channel is not
dissipated into the control room.
Danfoss A/S © Rev. 06/2014 All rights reserved.
Ensure that the frequency converter output
current rating is equal to or greater than the
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.
Top and bottom clearance for air cooling must be
provided. Generally, 225 mm (9 in) is required.
Improper mounting can result in over heating
and reduced performance
Derating for temperatures starting between 45 °C
(113 °F) and 50 °C (122 °F) and elevation 1,000 m
(3,300 ft) above sea level must be considered. See
® ®
VLT HVAC Drive FC 102VLT AQUA Drive FC 202
Design Guide for detailed information.
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