Справочник Пользователя для Mitsubishi Electronics FR-A700

· Do not install a power factor correction capacitor, surge suppressor or radio noise filter on the inverter output side. This will cause the

inverter to trip or the capacitor, and surge suppressor to be damaged. If any of the above devices are connected, immediately remove them.

· Electromagnetic wave interference

The input/output (main circuit) of the inverter includes high frequency components, which may interfere with the communication

devices (such as AM radios) used near the inverter. In this case, set the EMC filter valid to minimize interference.

· Refer to the instruction manual of each option and peripheral devices for details of peripheral devices.

Motor

Install a line noise filter to 
reduce the electromagnetic 
noise generated from the 
inverter.
Effective in the range from 
about 1MHz to 10MHz. A wire 
should be wound four turns at 
a maximum.

Power supply harmonics can 
be greatly suppressed.
Install this as required.

Great braking capability is obtained.
Install this as required.

The regenerative braking 
capability of the inverter can 
be exhibited fully.
Install this as required.

Three-phase AC power supply
Use within the permissible power supply 
specifications of the inverter.

A personal computer and an inverter can 
be connected with a USB (Ver1. 1) cable.

Moulded case circuit breaker (MCCB) or 
earth leakage current breaker (ELB), 
fuse
The breaker must be selected carefully 
since an in-rush current flows in the inverter 
at power on. 

Magnetic contactor (MC)
Install the magnetic contactor to ensure safety. 
Do not use the magnetic contactor for frequent 
starting/stopping of the inverter. Doing so will 
cause the inverter life to be shortened.

Do not install a power factor correction capacitor, 
surge suppressor or radio noise filter on the output 
side of the inverter. When installing a moulded case 
circuit breaker on the output side of the inverter, 
contact each manufacturer for selection of the 
moulded case circuit breaker.

*1

*2

*1

*1

*2

*3

*1

*2

Earth (Ground)
To prevent an electric shock, always earth (ground) the 
motor and inverter.  
For reduction of induction noise from the power line of 
the inverter, it is recommended to wire the earthing 
(grounding) cable by returning it to the earth (ground) 
terminal of the inverter.

: Install these options as required.

The 55K or lower has 
a built-in common 
mode choke.

For the 75K or higher, a 
DC reactor is supplied. 
Always install the reactor.

*1  Compatible with the 55K or lower.
*2  Compatible with the 75K or higher.
*3  Compatible with all capacities.

*4

Braking capability of the inverter built-
in brake can be improved. Remove 
the jumper across terminal PR-PX 
when connecting the high-duty brake 
resistor. (7.5K or lower) 
Always install a thermal relay when 
using a brake resistor whose capacity 
is 11K or higher.

*4 Compatible with the 22K or lower.

Reactor (FR-HAL, FR-HEL option)
Install reactors to suppress harmonics and to
improve the power factor. An AC reactor (FR-HAL)
(option) is required when installing the inverter 
near a large power supply system (1000kVA or 
more).
The inverter may be damaged if you do not use a 
reactor. Select a reactor according to the model. 
Remove the jumpers across terminals P/+ - P1 to 
connect the DC reactor to the 55K or lower.

(Refer to page 442)

(Refer to page 60 )

The life of the inverter is influenced by
surrounding air temperature. The
surrounding air temperature should be as
low as possible within the permissible
range. This must be noted especially
when the inverter is installed in an
enclosure. (Refer to page 8.)
Wrong wiring might lead to damage of the
inverter. The control signal lines must be
kept fully away from the main circuit to
protect them from noise.(Refer to page 14)
Refer to page 15 for the built-in noise filter.

(Refer to page 40)