Mitsubishi Electric FR-A700 Series, Техническое руководство

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331
PARAMETER
2
P
ARAM
ETE
R
2.13.3 Selection of regenerative brake and DC feeding [Pr. 30, 70]
(common)
When making frequent starts/stops, use the optional high-
duty brake resistor (FR-ABR), brake unit (FR-BU2, BU, FR-
BU, MT-BU) to increase the regenerative brake duty.
Use a power regeneration common converter (FR-CV) or
power regeneration converter (MT-RC) for continuous
operation in regeneration status.
Use a high power factor converter (FR-HC, MT-HC) to
reduce harmonics, improve the power factor, or
continuously use the regeneration mode.
In addition, either DC feeding mode 1 in which operation is
performed with DC power (terminal P, N) or DC feeding
mode 2 in which operation is performed normally with the
AC power (terminal R, S, T) and performed with DC power
such as battery at occurrence of power failure can be
selected.
common
A700 F700
[Pr. ] Name
Initial
Value Setting
Range
Description
Available
Inverters
Regeneration unit
Terminal for
power supply to
the inverter
30
Regenerative function
selection
0
0
Built-in brake resistor,
without regeneration function, brake
unit (FR-BU2, BU, BU type)
R, S, T { {
10
P, N
(DC feeding mode 1)
{ —
20
R, S, T/P, N
(DC feeding mode 2)
{ —
1
High-duty brake resistor,
Brake unit (MT-BU5),
Power regeneration converter (MT-
RC)
R, S, T { {
11
P, N
(DC feeding mode 1)
{ —
21
R, S, T/P, N
(DC feeding mode 2)
{ —
2
High power factor converter (FR-HC,
MT-HC),
Power regeneration common
converter (FR-CV)
P, N { {
70
Special regenerative
brake duty
0%
55K or
less
0 to
30%
Set the %ED of the transistor operation when using a built-
in brake resistor and brake unit (MT-BU5).
{
—
75K or
more
0 to
10%
{
A700 F700
E700 D700
[Pr. ] Name
Initial
Value Setting
Range
Description
Regeneration unit
30
Regenerative function
selection
0
0
Without regenerative function,
Brake resistor (MRS type),
Brake unit (FR-BU2)
Power regeneration common converter (FR-CV)
High power factor converter (FR-HC)
1 High-duty brake resistor (FR-ABR)
2
High power factor converter (FR-HC) when automatic restart after
instantaneous power failure is selected
70
Special regenerative
brake duty
0% 0 to 30% Brake duty when using the high-duty brake resistor (FR-ABR)