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3.6 Fluctuations in the power voltage and frequency
Standard: Rotation electricity machine general rules
IEC60034-1:2004
To the voltage change and frequency change in Domain A, in main rated values, it operates
continuously, and can be used practically convenient, and to the voltage change and frequency
change in Domain B, it shall operate with main rated values and shall be used practically
convenient.
However, operation with "it is convenient and safe is maintained on "practical use, it means
not resulting in the grade which shortens a life remarkably, and the characteristic, a
temperature rise, etc. do not apply correspondingly in the state of rating. Moreover, main
rating shows rated torque (N･m).
Fig. 9 Change region of the voltage and frequency
Before connecting wires, turn off the power switch. Never perform wiring with
the power supplied as an electric shock will occur. Connect the earth wire
correctly. Failure to do so may result in electric shock if a failure or earth
leakage occurs. Installation of a dedicated earth leakage breaker is also
recommended.
Perform electric wiring correctly in accordance with the “Electric Equipment
Technical Standard” and “Internal Wiring Regulation.” Incorrect wiring will
result in fire.
Install an overload protector suitable for the capacity of the motor. If an
overload protector is not installed, or if an overload protector that is
unsuitable for the motor capacity is installed, the motor will be damaged leading
to fire.
Caution
Warning
Caution
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