Toshiba VF-SX - Manual (Page 11)

2-2 TOSHIBA
The VF-SX inverter Is a solid state device. Use caution to install the device
in the proper environment, as instructed in the general recommendations shown
below. See Chapter 14 for detailed specifications of the proper operating
environment.
1. Confirm that the input power supply is within +/- 10% of the nominal
voltage. The protective circuit will activate and trip if the permissible
input voltage range is exceeded. Extreme voltage conditions may damage
the inverter.
2. Do not install the inverter in places where high temperature or humidity
are present. Do not install in dusty environments, or environments
contaminated with metal particles or metallic powder.
3. Do not mount the inverter on any device subject to intense vibration.
4. Operate the inverter only in an environment between -10 deg C to 40 deg C.
The inverter generates heat when operating. When it is installed on a
subpanel or backplate be sure there is adequate ventilation on all sides
of the inverter, including the back of the inverter where the heat sinks
are located. In high ambient temperatures it may be necessary to remove
the stick-on seal on the top of the inverter to allow more ventilation
through the Inverter.
Certain electrical equipment, if installed too near the inverter, may
cause malfunctions. Examples of this type of equipment can include:
If a magnetic contactor is installed near the inverter install a
urge suppression device across the coil of the contactor to prevent
surging magnetic fields from interfering with the operation of the
inverter.
Do not install the inverter near fluorescent lighting.
Keep other heat generating electrical equipment, such as resistors
or heaters, away from the inverter.
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7.
8 .
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C.
Always properly ground the inverter chassis to prevent electrical noise
and nuisance tripping. Proper earth ground should not exceed 100 ohms.
Install the inverter ONLY on incombustible subpanels, such as a metal
subpanel. If the inverter is installed on a heat insulating subpanel then
mount the inverter on a metal subpanel first, and attach this assembly to
the insulated subpanel.
Always have at least 10 centimeters free space above and below the
inverter. Always have at least 5 centimeters free space on EACH side of
the inverter. If more than one inverter is mounted in a row, leave at
least 10 centimeters between each drive, from side to side. If fans are
installed in the enclosure or near the drives this space requirement may
be reduced. Consult the Toshiba factory for details.