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Mitsubishi Electric FR-F820-00046 Installation Manuallines Page 4

Fr-f800 series.
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Injury Prevention
Apply only the voltage specified in the instruction manual to each terminal. Otherwise, burst, damage, etc. may occur.
Ensure that the cables are connected to the correct terminals. Otherwise, burst, damage, etc. may occur.
Always make sure that polarity is correct to prevent damage, etc. Otherwise, burst, damage, etc. may occur.
While power is on or for some time after power-off, do not touch the inverter as it is hot and you may get burnt.
Additional Instructions
The following instructions must be also followed. If the product is handled incorrectly, it may cause unexpected fault, an injury, or an
electric shock.
Transportation and installation
Any person who is opening a package using a sharp object, such as a knife and cutter, must wear gloves to prevent injuries caused
by the edge of the sharp object.
When carrying products, use correct lifting gear to prevent injury.
Do not stand or rest heavy objects on the product.
Do not stack the inverter boxes higher than the number recommended.
When carrying the inverter, do not hold it by the front cover or setting dial; it may fall off or fail.
During installation, caution must be taken not to drop the inverter as doing so may cause injuries.
Ensure that installation position and material can withstand the weight of the inverter. Install according to the information in the instruction
Do not install the product on a hot surface.
Check the inverter mounting orientation is correct.
The inverter must be installed on a strong surface securely with screws so that it will not drop.
Do not install or operate the inverter if it is damaged or has parts missing. This can result in breakdowns.
Prevent other conductive bodies such as screws and metal fragments or other flammable substance such as oil from entering the
As the inverter is a precision instrument, do not drop or subject it to impact.
Use the inverter under the following environmental conditions. Otherwise, the inverter may be damaged.
Operating condition
Surrounding air
Ambient humidity
Storage temperature
Temperature applicable for a short time, e.g. in transit.
2.9m/s² or less for the FR-F840-04320(185K) or higher
If halogen-based materials (fluorine, chlorine, bromine, iodine, etc.) infiltrate into a Mitsubishi Electric product, the product will be
damaged. Halogen-based materials are often included in fumigant, which is used to sterilize or disinfect wooden packages. When
packaging, prevent residual fumigant components from being infiltrated into Mitsubishi Electric products, or use an alternative
sterilization or disinfection method (heat disinfection, etc.) for packaging. Sterilization of disinfection of wooden package should also
be performed before packaging the product.
To prevent a failure, do not use the inverter with a part or material containing halogen flame retardant including bromine.
Do not install assemblies or components (e. g. power factor correction capacitors) on the inverter output side, which are not approved
from Mitsubishi Electric. These devices on the inverter output side may be overheated or burn out.
The direction of rotation of the motor corresponds to the direction of rotation commands (STF/STR) only if the phase sequence (U, V,
W) is maintained.
PM motor terminals (U, V, W) hold high-voltage while the PM motor is running even after the power is turned OFF. Before wiring, the
PM motor must be confirmed to be stopped. Otherwise you may get an electric shock.
Never connect a PM motor to the commercial power supply.
Applying the commercial power supply to input terminals (U,V, W) of a PM motor will burn the PM motor. The PM motor must be
connected with the output terminals (U, V, W) of the inverter.
Test operation and adjustment
Before starting operation, confirm and adjust the parameters. A failure to do so may cause some machines to make unexpected
LD rating: –10°C to +50°C (non-freezing)
SLD rating: –10°C to +40°C (non-freezing)
With circuit board coating (conforming to IEC 60721-3-3 3C2/3S2): 95% RH or less (non-condensing),
Without circuit board coating: 90% RH or less (non-condensing)
–20°C to +65°C
Indoors (free from corrosive gas, flammable gas, oil mist, dust and dirt)
Maximum 1000m above sea level for standard operation. After that derate by 3% for
every extra 500m up to 2500m (91%)
5.9m/s² or less
at 10 to 55Hz (directions of X, Y, Z axes)


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