Справочник Пользователя для Mitsubishi Electronics FR-A701

1.4 Installation of the inverter and enclosure design

When an inverter enclosure is to be designed and manufactured, heat generated by contained equipment, etc., the
environment of an operating place, and others must be fully considered to determine the enclosure structure, size and
equipment layout. The inverter unit uses many semiconductor devices. To ensure higher reliability and long period of
operation, operate the inverter in the ambient environment that completely satisfies the equipment specifications.

The inverter consists of precision mechanical and electronic parts. Never install or handle it in any of the following
conditions as doing so could cause an operation fault or failure.

As the inverter installation environment should satisfy the standard specifications indicated in the following table,
operation in any place that does not meet these conditions not only deteriorates the performance and life of the
inverter, but also causes a failure. Refer to the following points and take adequate measures.

Surrounding air 

temperature

-10°C to +50°C (non-freezing)

Ambient humidity

90% RH maximum (non-condensing)

Atmosphere

Free from corrosive and explosive gases, dust and dirt

Maximum Altitude

1,000m or less

Vibration

5.9m/s

2

 or less at 10 to 55Hz (directions of X, Y, Z axes)

Direct sunlight

High temperature, 
high humidity

Horizontal placement

Mounting to 
combustible material

Oil mist, flammable 
gas, corrosive gas, 
fluff, dust, etc.

Transportation by 
holding the front cover

Vertical mounting 
(When installing two or 
more inverters, install 
them in parallel.)

Vibration (5.9m/s

2

 or more 

at 10 to 55Hz (directions of 
X, Y, Z axes))