Regenerative Brake Duty (Pr. 30, Pr. 70) - Mitsubishi Electric FR-V560 Instruction Manual

4.5.5 Regenerative brake duty (Pr. 30, Pr. 70
When making frequent starts/stops in a 15K or less inverter, use the external high-duty brake resistor to
increase the regenerative brake duty.
Parameter Name
Regenerative
30
function selection
Special regenerative
70
brake duty
<Setting>
1) When using the built-in brake resistor, brake unit or power regeneration converter
Set "0" in Pr. 30. The Pr. 70 setting is made invalid.
At this time, the regenerative brake duty is as follows.
•FR-V560-7.5K or less ................... 2%
•FR-V560-15K or more................... 0%
2) When using the high-duty brake resistor
• Set "1" in Pr. 30.
• Set Pr.70 "special regenerative brake duty" as follows:
7.5K or less . . . .10%
11K or more . . .6%
The value set in Pr. 70 must not exceed the setting of the brake resistor used.
Otherwise, the resistor can overheat.
REMARKS
1. The Pr. 70 setting is invalid for the inverter of 22K or more.
2. Pr. 70 "regenerative brake duty" indicates the %ED of the built-in brake transistor operation.
Operation selection functions 1 (Pr. 17 to Pr. 37)
Factory Setting
Setting Range
When using built-in brake resistor or brake unit
0
(FR-BU-C)
0
1 When using the high-duty brake resistor
2 Maker setting value. Do not make setting.
0 to 15% 1.5K
0%
0 to 30% 2.2K or more
WARNING
105
with without with without
Encoder Encoder Encoder Encoder
Torque
Speed
Remarks
Condi-
tional PLC SSC
)
Position
Extended
mode
4