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CHAPTER 7
"
Optional Units
The selection on the VF-A3 inverter's optional units include those that are mounted externally and
those that can be built in, as per your request.
7.1 Options for exernal installation
The VF-A3 inverter can be connected with the following externally installed options:
input reactor,
radio noise reduction filter, motor noise reduction reactor, regenerative discharge resistor/regenera-
tive discharge unit, operating board, external operating panel, stand-alone programmer, and applied
control units. These external options are listed in Table 7.1.
Table 7.1
Optional units for external installation
,
, Classifica-
,
: tion
!
Input reactor
!
Item
Model ; PFL 2012 to 2100,4012 to 4050
i Motor noise reduction filter
Model
NRL 2005 to 2083. 4005 to 4033
1
i
I
Radio noise reduction filter
Model
HF 3005A-Z to 3080A-Z, 3010C-
I
Z to 3040C-Z
I
,
I
i
:
; External
i .
II'
I
Regenerative discharge resistor
Model
PBR3-2055, 2075,4037 to 4075
i
• Insta atlon
, type
I
Regenerative discharge unit
I
!
Operating board
: External operating panel
I
,
; Programming ifF kit
I
Applied control units
Model
PBR3-2110,2150,4110,4150
Model' CBV-7B2 or CBV-CE
Model
PANEL-KIT
*
1M/3M/5M
Model
(Future option)
Model
EX series and AP series
These options are usually used for the following reaseons:
1)
Input reacators
These devices improve the power supply power factor and suppress line surges. They are also
used when the inverter is connected directly to a large capacity power supply (above 1000kVA),
or when thyristor equipment, an arc furnace, any other powerful distorition-generating source
and/or a large capacity inverter are connected to the same power distribution system.
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