Mitsubishi F700 Series

108
Motor brake and stop operation
4.9.2 Selection of a regenerative brake and DC feeding (Pr. 30, Pr. 70)
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 185)
*1 Used in combination with GZG, GRZG, or FR-BR.
*2 Used in combination with MT-BR5
<01160 or less>
<01800 or more>
*1 Used in combination with GZG, GRZG, or FR-BR.
*2 Used in combination with MT-BR5
When making frequent starts/stops, use the optional brake unit (FR-BU2, BU, FR-BU, MT-BU5) to increase the
regenerative brake duty.
Use a power regeneration common converter (FR-CV) or power regeneration converter (MT-RC) for
continuous operation in regenerative status. Use a high power factor converter (FR-HC, MT-HC) to reduce
harmonics, improve the power factor, or continuously use the regenerative mode.
You can select DC feeding mode 1, which operates with DC power supply (terminal P/+, N/-), or DC feeding
mode 2, which normally operates with AC power supply (terminal R/L1, S/L2, T/L3) and with DC power supply
such as battery at power failure occurrence.
Parameter
Number
Name
Initial
Value
Setting
Range
Description
30
Regenerative
function
selection
0
Regeneration unit
Terminal for power
supply to the inverter
Reset at main circuit
power supply ON
0
Inverter without regenerative
function, brake unit (FR-BU2
*1, FR-BU, BU type)
R/L1, S/L2, T/L3
Reset
100 Not reset
10
P/+, N/-
(DC feeding mode 1)
-
20
R/L1, S/L2, T/L3 - P/+, N/-
(DC feeding mode 2)
Reset
120 Not reset
1
Brake unit (FR-BU2
*2, MT-
BU5), power regeneration
converter (MT-RC)
R/L1, S/L2, T/L3
Reset
101 Not reset
11
P/+, N/-
(DC feeding mode 1)
-
21
R/L1, S/L2, T/L3 - P/+, N/-
(DC feeding mode 2)
Reset
121 Not reset
2
High power factor converter
(FR-HC, MT-HC), power
regeneration common
converter (FR-CV)
P/+, N/- -
70
Special
regenerative
brake duty
0% 0 to 10%
Set the %ED of the brake transistor operation when using a brake unit (MT-BU5).
(Setting is available only for the 01800 or more)
Regeneration Unit
Power Supply to the
Inverter
Pr. 30 Setting
Inverter without regenerative function , brake
unit (FR-BU2
*1, FR-BU, BU)
R/L1, S/L2, T/L3 0
(initial value), 100
P/+, N/- 10
R/L1, S/L2, T/L3 - P/+, N/- 20, 120
High power factor converter (FR-HC), power
regeneration common converter (FR-CV)
P/+, N/- 2
Regeneration Unit
Power Supply to the
Inverter
Pr. 30 Setting Pr. 70 Setting
Brake unit (FR-BU2 *2)
R/L1, S/L2, T/L3 0
(initial value), 100
P/+, N/- 10
R/L1, S/L2, T/L3 - P/+, N/- 20, 120
Power regeneration converter (MT-RC) R/L1, S/L2, T/L3 1, 101 0%
(initial value)
Brake unit (MT-BU5)
R/L1, S/L2, T/L3 1, 101
10%P/+, N/- 11
R/L1, S/L2, T/L3 - P/+, N/- 21, 121
High power factor converter (MT-HC) P/+, N/- 2 