Toshiba Tosvert VF-AS1 - Manual (Page 235)

E6581301
J-5
10
10. 4 Application and functions of options
Separate type options shown below are prepared for the inverter VF-AS1
No-fuse
breaker
(MCCB)
N.F
motor
IM
Magnetic
contactor
(MC)
Power supply
(1) Input AC reactor
(ACL)
(3) High attention radio
noise filter
(5) Zero-phase reactor
ferrite core type radio
noise filter
(6) EMC filter for CE
compliance
(4) Simple radio
noise filter
(2) DC reactor
(DCL)
(7) Braking resistor
(5) Zero-phase
reactor ferrite
core type radio
noise filter
VF-AS1 N.F
(9) Motor end surge
voltage suppression
filter (for 400V
models only)
(10) Control power supply
backup option
(8) Motor noise
reduction filter
(7) Braking resistor/Braking unit
(200kW models and larger)
Sorts of separate-type options
No. Option name Function, purpose.
(1)
Input AC reactor
(ACL)
(2)
DC reactor(DCL)
To be used for improvement of input power-factor of the inverter power source, for reducing
higher harmonic or suppressing external surge. The input reactor can be installed when the
power capacity is 500 kVA or more and it is 10 times or more as high as the inverter capacity
or there are some source distorted wave generation such as a thyristor, etc. and a high
capacity inverter connected with the same distribution system.
The DC reactor is superior to the input AC reactor in power-factor improvement. For the
inverter system that is required to be high reliable, it is recommended to use the input AC
reactor that effectually suppresses external surge together with the DC reactor.
* If you are using a 200V/55kW model or larger or a 400V/90kW model or larger, be sure to
connect a DC reactor. (No DC reactor is required when the inverter is powered from a DC
power supply.)
(3)
High attenuation
radio noise filter (LC
filter) NF type,
(manufactured by
Soshin Electric Co.,
Ltd.) • Effectual to prevent audio equipment used near the inverter from radio interference.
• Install this filter in the inverter’s input side.
• Excellent attenuation characteristic for wide frequency band from AM radio band nearly to
10 MHz.
• To be used when electric appliances that are easily affected by noise are installed in the
periphery of the inverter
(4)
Simple radio noise
filter (capacitive
filter) (Manufactured
by Malcon
Electronics Co., Ltd.) • Effectual to prevent audio equipment used near the inverter from radio interference.
• Install this filter in the inverter’s input side.
• Attenuation characteristic for a certain frequency band. Effectual for noise reduction of
specific AM radio broadcastings (weak radio wave in mountain area).
• Leak current increases because of the condenser type. If ELCB is installed in the power
supply side, avoid using multiple units.
(5)
R
a
d
io noise reduc
tion
fil
ter
Zero-phase reactor
(Inductive filter)
(Ferrite core type,
manufactured by
Soshin Electric Co.,
Ltd.) • Effectual to prevent audio equipment used near the inverter from radio interference.
• Effectual to reduce noise in the input and output sides of the inverter.
• Excellent attenuation characteristic for several decibels in wide frequency band from AM
radio band nearly to 10 MHz.
(6)
EMC filter for CE
compliance
(VW3A44**) If EMC filter is installed in proper connection, the inverter has consistency with EMC
commands. 200V/0.4kW to 200V/7.5kW models and 400V/0.75 to 400V/500kW models come
standard with built-in noise filters. The effectiveness of the built-in filter can, however, be
increased by adding an EMC filter.
Effect
Harmonic suppression Type of
reactor
Power-factor
improvement 200V, 3.7/4.0kW
or less
Other
combination
External surge
suppression
Input AC
reactor
Effective Effective Effective Effective
DC reactor Very effective Effective Very effective Not effective