3.1.3 Tools Required for Installation
•
Drill with 10 or 12 mm drill
•
Tape measure
•
Wrench with relevant metric sockets (7-17 mm)
•
Extensions to wrench
•
Sheet metal punch for conduits or cable glands
in IP21/Nema 1 and IP54 units
•
Lifting bar to lift the unit (rod or tube max. Ø 5
mm (1 inch), able to lift minimum 400 kg (880
lbs).
•
Crane or other lifting aid to place the frequency
converter in position
•
A Torx T50 tool is needed to install the E1 in IP21
and IP54 enclosure types.
3.2 Pre-installation Checklist
•
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
•
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.
3.3 Mechanical Installation
3.3.1 Cooling
•
Provide top and bottom clearance for air cooling.
Generally, 225 mm (9 in) is required.
•
Improper mounting can result in overheating and
reduced performance.
•
Consider derating for temperatures starting
between 45
°
C (113
°
F) and 50
°
C (122
°
F) and
elevation 1000 m (3300 ft) above sea level. See
VLT
®
Refrigeration Drive FC 103 Design Guide
for
detailed information.
The high-power frequency converters utilise a back-
channel cooling concept that removes heat sink cooling
air. Approximately 90% of the heat is lead 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 converter 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.
NOTICE
A door fan(s) is required on the enclosure to remove the
heat not contained in the back channel of the frequency
converters and any additional losses generated by other
components inside the enclosure. Calculate the total
required air flow so that the appropriate fans can be
selected. A cooling clearance of 225 mm is required
above the frequency converter.
Airflow
Secure the necessary airflow over the heat sink. The flow
rate is shown in
Installation
Operating Instructions
12
Danfoss A/S © Rev. 05/2014 All rights reserved.
MG16J202
3
3
Summary of Contents for VLT FC 103
Page 2: ......
