Installation And Wiring; Precautions For Installation - Mitsubishi Electric FREQROL HC Instruction Manual

1.3 INSTALLATION AND WIRING

Incorrect handling might cause the equipment to operate improperly, its life to be reduced
considerably, and in the worst case, the high power factor converter and inverter to be
damaged. Please handle the unit properly in accordance with the information on each
section as well as the precautions and instructions of this manual.

1.3.1 Precautions for installation

(1) Installation of the high power factor converter
Instructions for ambient temperatures
The lives of the high power factor converter and
reactors 1, 2 are affected considerably by ambient
temperatures. Keep their ambient temperatures
below the permissible value (50°C). Measure the
ambient temperatures in the following positions to
make sure that they are within the permissible
range.:
FREQROL
5cm
5cm
Note: 1. When the high power factor converter is
installed in a panel, determine the cooling
method and panel dimensions so that the
ambient temperature of the high power factor
converter is within the permissible range
(specified value is given on page 56).
2. When the inverter and high power factor
converter are installed in the same panel or a
ventilation fan is mounted in the panel,
extreme care must be taken to keep the
ambient temperatures of the high power factor
converter and inverter below the permissible
value. If the high power factor converter,
inverter and/or ventilation fan is installed in an
improper position, the ambient temperature of
the high power factor converter will rise and
ventilation effects will reduce.
Inverter Converter
Built-in cooling fan
(Correct)
Installation of Converter and Inverter
Ventilation fan
Converter
(Correct)
Position of Ventilation Fan
Measurement position
5cm
Measurement position
Inverter
Converter
(Incorrect)
Converter
(Incorrect)
Leave sufficient space around the equipment.
For adequate heat dissipation, leave sufficient
space around the high power factor converter.
10cm or more
5cm
FREQROL
or
more
10cm or more
It is possible to place the heat sink outside the
enclosure to greatly reduce heat generated.
enclosure
High power factor
converter
Note: 1. Use the optional mounting bracket (FR-ACN)
(see page 70). The mounting area should be
machined to the panel cutting dimensions on
page 66.
2. The cooling section outside the panel has a
cooling fan. Do not use the inverter in damp,
oil mist or dust environments.
- 13 -
Leave sufficient
Cooling air
clearances above
and under the unit
to ensure proper
ventilation.
Cooling fan built
5cm
in converter
or
more
Enclosure
Inside
Mounting bracket FR-ACN
(option)
Heat sink
Cooling fan
Cooling air