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3.4 Electric wiring
(1)
Plug the power cord or the motor lead to a power compatible with the motor rating.
(2)
This pump is wired for use on 100 V single-phase power as standard.
(3)
If the pump motor is changed with a motor for use on three phase power, turn ON the power
switch after plugging the power cord to the terminal block of the motor and check if the
motor rotates counterclockwise as viewed from the back of the motor. At this time, noise will
be heard from the pump, which is operated in atmospheric air, but this is not a trouble.
(4)
If the pump rotates in the reverse direction, unplug the power cord and interchange two of the
three phases. If the pump rotates in the reverse direction, oil may be diffused from the intake
port or the pump may fail.
(5)
Upon checking the connection, turn OFF the power switch.
(6)
The over-load protector (thermal protector, manual reset type) is provided for this pump.
3.5 Fluctuations in the power voltage and frequency
Standard: Rotation electricity machine general rules
JIS C 4034-1:1999
，
JEC-2137-2000
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. 5 Change region of the voltage and frequency
