GE Fuji Electric MICRO-SAVER AF-300, Руководство для стартапов

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The wiring procedure for the 6KXC_________ is
shown below as an example. For other drive types,
perform wiring in accordance with their individual
terminal arrangement. (Refer to page 2-3.)
(1) Ground terminals ( G)
For safety and noise reduction, be sure to connect either
of the two ground terminals. Electric Codes specify that
all metal frames of electrical equipment must be ground-
ed to avoid electric shock, fire and other disasters.
Ground terminals should be wired as follows:
1) Connect the ground terminal of the drives to a
ground in compliance with your applicable local
Electric Codes.
2) Connect a thick ground wire with a large surface
area and keep the wiring length as short as pos-
sible.
Figure 2.4 Ground Terminal Wiring
(2) Drive output terminals, U, V, and W
1) Connect the three wires of the 3-phase motor to
terminals U, V, and W, aligning phases each other.
2) The wiring length between the drive and motor
should not exceed 50 m (165 ft). If the wiring length
exceeds that length, it is recommended that an
output circuit filter (option) be inserted.
Figure 2.5 Drive Output Terminal Wiring
No output circuit filter inserted
Output circuit filter inserted
Drive Motor
Max. 165 ft. (50m)
Power
Supply
Drive Motor
Max. 1300 ft. (400m)
Power
Supply
Max. 16 ft. (5m)
Output Cicuit Filter
NOTE: Do not connect a power factor improvement ca-
pacitors or surge absorber to the drive output terminals.
If the wiring length is excessive, stray capacitance
between the wires will increase, resulting in high leakage
current. This may activate the overcurrent protection,
increase leakage current, or degrade the accuracy of the
current display.
If more than one motor is to be connected to a single
drive, the allowable wiring length is the combined length
of all the wires to the motors.
NOTE: Driving a 460V motor
If a thermal relay is installed in the path between the
drive and the motor, the thermal relay may malfunction
even with a wiring length shorter than 165 ft (50 m). In
this situation, add an output circuit filter (option) or lower
the carrier frequency (Function Code F26: Motor sound
(sound tune)).
If the motor is driven by a PWM-type drive, surge volt-
age that is generated by switching the drive component
may be superimposed on the output voltage and thus
applied to the motor terminals. Particularly if the wiring
length is long, this surge voltage may deteriorate the
insulation resistance of the motor.
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