Toshiba Tosvert VF-A5 - Manual (Page 8)

2. installation Precautions
This inverter is an electronic control unit. Take special care concerning the installation environment.
Confirm that the input power is within ±10% of the rated value. If the input power voltage range
tolerances are exceeded during use, the protective circuits may function or the inverter may be
damaged.
Avoid instaliation in hot and humid locations,
where condensation or freezing may occur, or
where water, dust, or metal chips may come into
contact with the inverter.
Install in a location
free of corrosive gases
or cutting fluids, etc.
Use the unit within an ambient temperature of
-10 to 40°C.
Because the inverter radiates
heat, when installing in a
panel take special care
concerning ventilation and
panel space. Removal of
the cover is recommended
when using in a panel to
ensure maximum longevity
and reliability.
Do not install the unit
in locations that
experience large
vibrations.
The inverter may malfunction if the
following types of devices are
installed nearby, so use proper
precautions.
- Install a surge killer
on the exciting coil.
• Solenoids ■
• Brakes
• Electromagnetio -
contactors
- Ruorescent iights
> Resistors--------- Keep away from the inverter
Ground the G/E
terminal to prevent
electrical shock and
malfunction due to
noise.
ua/iL
Attach the unit to a non-combustible material such as a metal panel. To
ensure adequate ventilation, maintain the following installation spaces, and
always install the unit vertically in the longitudinal direction. When instailing
multiple inverters in a row, leave a clearance of
at least 10cm between each unit. This clearance
can be reduced depending on the environment
or by adding fans.
(For 37kW and larger units, leave a clearance of
at least 20cm above and below the inverter to
allow for fan replacement and wire bending
space.)
Contact the Engineering Department for further
details.
5cm or more
10cm or more
g
5cm or more
ri
10cm or more
7777777 ‘
Inverter life depends greatly on the ambient temperature. Make sure
that the ambient temperature of the installation location does not exceed the
maximum ambient temperature rating (40°C). ^
Measure the temperature at the positions shown in the diagram on the right,
and confirm that it is less than the maximum ambient temperature rating
(40°C). (50°C or less when the cover is removed.)
22kW and larger units can be used up to an ambient temperature of 50°C.
(Do not remove the cover from 22kW and larger units.)
Sett
Measurement position
Measurement position
* Always install the inverter in the longitudinal direction on a vertical surface.
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