YASKAWA Varispeed-606PC3 User Manual

1 .
VS-606PO3 INVERTER MAIN UNIT
(Contod)
IMPORTANT
Lead size should be determined considering
voltage drop of leads .
Voltage drop can be obtained by the following equation :
select
such lead size
that voltage drop will be within 2% of normal rated
voltage .
phase-to-phase voltage drop (V)
=F X
lead
resistance (
0
/km) X wiring, distance (m)
X current (A) X 10
Insertion of power supply coordination
AC reactor
When
the power supply capacity exceeds 600 kVA, connect an
AC reactor at the
inverter input side for power supply coordina-
tion . This reactor
is also effective
for
power factor improvement
of the power supply .
Refer
to Par . 1 .10 "OPTIONS AND PERIPHERAL UNITS" on
page 60 .
Wiring length
between inverter and motor
If total wiring distance between inverter
and motor is excessively
long
and inverter carrier frequency (main transistor switching
frequency)
is high, harmonic leakage current from the cable will
increase to affect the inverter
unit or
peripheral
devices . If the
wiring distance between inverter and motor
is
long,
reduce the
inverter
carrier frequency as shown below . Carrier frequency can
be set by constant No . 43 . For details, refer to "CARRIER
FREQUENCY"
on
page 125
.
Carrier
frequency is set to 10 kHz
at the factory prior to shipping .
Wiring
Distance between
Up
to 30 m
up to 50 m Up to 100 m 100 m or more
Inverter and Motor
Allowable Carrier
15 kHz or
10 kHz
or
5 kHz or
2 5 kHz or
Frequency (Constant No
43 set value)
less (6)
less (4)
less (2)
less
(1)

YASKAWA Varispeed-606PC3 Specifications

General

Brand	YASKAWA
Model	Varispeed-606PC3
Category	Inverter
Language	English