Application And Functions Of Options - Toshiba TOSVERT VF-P7 Instruction Manual

9. 4 Application and functions of options

Separate type options shown below are prepared for the inverter VF-P7
Power supply
Molded case
circuit breaker
(MCCB)
Sorts of separate-type options
No. Option name
Input AC reactor
①
(ACL)
② DC reactor(DCL)
High attenuation
radio noise filter
(LC filter) NF type,
③
(manufactured by
Soshin Electric
Co., Ltd.)
Simple radio noise
filter (capacitive
filter)
④
(Manufactured by
Malcon Electronics
Co., Ltd.)
Zero-phase reactor
(Inductive filter)
(Ferrite core type,
⑤
manufactured by
Soshin Electric
Co., Ltd.)
EMI filter for CE
⑥
compliance
Braking resistor
⑦
Braking unit
③High attention radio
noise filter
⑤Zero-phase reactor
ferrite core type
radio noise filter
⑥EMI filter for CE
Magnetic
compliance
conductor
(MC)
N.F.
①Input AC reactor
(ACL)
④Simple radio
noise filter
Function, purpose.
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.
Type of reactor
Input AC reactor
DC reactor
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.
･ 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
･ 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.
･ 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.
If EMI filter is installed in proper connection, the inverter has consistency with EMC
commands.
To be used to shorten deceleration time for the reason of frequently operated quick
deceleration and suspension or high inertia load. This increases consumption of
regenerative energy in dynamic braking.
･ Braking resistor: (resistor + protective thermal relay) are built in.
･ Braking unit:(dynamic brake drive circuit + resistor + protective thermal relay + thermal
relay) are built in.
②DC reactor
(DCL)
⑦Braking resistor
/Braking unit
VF-P7
⑤Zero-phase
reactor
ferrite core
type radio
noise filter
⑩Control power
converter unit
Power-factor
improvement
Effective
Very effective
I-5
⑧Motor noise
reduction filter
N.F.
⑨Motor end surge
voltage suppression
filter (for 400V
models only)
Effect
Harmonic External surge
suppression suppression
Effective Effective
Very effective Not effective
motor
IM