Mitsubishi Electric fr-e700 series, Инструкция по эксплуатации

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Parameter Motor brake and stop operation
FR-E700 SC EC/ENE 6 - 103
6.9.2 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 regeneration
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 "User group read selection" = 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-E720S-030SC or more ................. 3%
●
FR-E740-016SC 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. 184.
When using the high-duty brake resistor (FR-ABR)
(FR-E720S-030SC or more, FR-E740-016SC or more)
Set "1" in Pr. 30. Set Pr. 70 as follows.
●
FR-E720S-100SC or less, FR-E740-170SC or less.................10%
●
FR-E740-230SC and 300SC ........................................................6%
Pr. No. Name Initial Value
Setting
Range
Description Parameters referred to
Refer to
Section
30
Regenerative function
selection
0
0
Inverter without regenerative function
Brake unit (FR-BU2)
Power regeneration common converter (FR-CV)
High power factor converter (FR-HC) 57
178–184
190–192
Restart coasting time
Input terminal function
selection
Output terminal
function selection 6.12.1
6.10.1
6.10.5
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)(10%)