Mitsubishi Electric FR-D720S SC EC, Инструкция по эксплуатации

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Motor brake and stop operation Parameter
6 - 84
6.8.2 Selection of a regenerative brake (Pr. 30, Pr. 70)
●
When making frequent starts/stops, use the optional high-duty brake resistor (FR-ABR) and
brake unit (FR-BU2) to increase the regenerative brake duty.
●
Use a power regeneration common converter (FR-CV) for continuous operation in regen-
eration status.
Use the high power factor converter (FR-HC) to reduce harmonics, improve the power factor,
or continuously use the regenerative status.
The above parameters can be set when Pr. 160 = 0.
When using the brake unit (FR-BU2), power regeneration common converter (FR-CV),
and high power factor converter (FR-HC).
●
Set Pr. 30 to "0" (initial value). The Pr. 70 setting is made invalid. At this time, the regenerative
brake duty is as follows.
FR-D720S-025SC to 100SC ...3%
FR-D740-012SC or more ........2%
●
Assign the inverter operation enable signal (X10) to the contact input terminal.
To make protective coordination with the FR-HC and FR-CV, use the inverter operation
enable signal to shut off the inverter output.
Input the RDY signal of the FR-HC (RDYB signal of the FR-CV).
●
For the terminal used for X10 signal input, assign its function by setting "10" (X10) to any
of Pr. 178 to Pr. 182.
When using the high-duty brake resistor (FR-ABR)
(FR-D720S-025SC or more, FR-D740-012SC or more)
When using the high-duty brake resistor (FR-ABR), set "1" in Pr. 30. Set 10% in Pr. 70.
Pr.
No.
Name
Initial
Value
Setting
Range
Description Parameters referred to
Refer to
Section
30
Regenerative function
selection
0
0
Brake unit (FR-BU2)
Power regeneration common converter
(FR-CV)
High power factor converter (FR-HC)
57
178–182
190/192/
197
Restart coasting
time
Input terminal
function selection
Output terminal
function selection 6.11.1
6.9.1
6.9.5
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% 0–30%
Brake duty when using the high-duty
brake resistor (FR-ABR)