Mitsubishi FR-A846-00023, Инструкция по эксплуатации

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148
APPENDIX
9
Excitation current low-speed scaling
factor (Advanced magnetic flux vector
control or Real sensorless vector control)

The setting is applied to the operation under V/F control.

The setting is valid only under Advanced magnetic flux vector control or Real sensorless vector control. When Pr.14 = "12 to 15" and V/F control
is selected, the operation is the same as the one for constant-torque load ( Pr.14 = "0").
• Under Advanced magnetic flux vector control or Real sensorless vector control, excitation current in the low-speed range
can be increased to improve torque. When Pr.14 = "12 to 15", the excitation current scaling factor can be switched for the
forward/reverse rotation.
• Under Advanced magnetic flux vector control or Real sensorless vector control, the excitation current scaling factor in
the low-speed range can be adjusted.
Pr. Name
Initial
value Setting
range
Description
14
G003 Load pattern
selection
0
0
Excitation current
low-speed scaling
factor:
Pr.86
For constant-torque load

1 For variable-torque load

2 For constant-torque lift (boost at reverse rotation: 0%)

3 For constant-torque lift (boost at forward rotation: 0%)

4
RT signal ON...for constant-torque load
RT signal OFF...for constant-torque lift (boost at reverse
rotation: 0%)

5
RT signal ON...for constant-torque load
RT signal OFF...for constant-torque lift (boost at forward
rotation: 0%)

12

Forward rotation excitation current low-speed scaling factor: Pr.86
Reverse rotation excitation current low-speed scaling factor: Pr.617
13

Forward rotation excitation current low-speed scaling factor: Pr.617
Reverse rotation excitation current low-speed scaling factor: Pr.86
14

Forward rotation excitation current low-speed scaling factor: Pr.86
Reverse rotation excitation current low-speed scaling factor: Pr.617 (X17-OFF),
Pr.86 (X17 signal-ON)
15

Forward rotation excitation current low-speed scaling factor: Pr.617 (X17-OFF),
Pr.86 (X17 signal-ON)
Reverse rotation excitation current low-speed scaling factor: Pr.86
85
G201 Excitation current
break point
9999
0 to 400 Hz Set the frequency at which increased excitation is started.
9999
SF-PR/SF-HR/SF-HRCA motor: The predetermined frequency is applied.
Motor other than the above: 10 Hz is applied.
86
G202
Excitation current
low speed scaling
factor
9999
0 to 300% Set an excitation current scaling factor at 0 Hz.
9999
SF-PR/SF-HR/SF-HRCA motor: The predetermined scaling factor is applied.
Motor other than the above: 130% is applied.
617
G080
Reverse rotation
excitation current
low-speed scaling
factor
9999
0 to 300%
Set an excitation current scaling factor when different excitation current scaling
factors are used for forward and reverse rotation.
9999
SF-PR/SF-HR/SF-HRCA motor: The predetermined scaling factor is applied.
Motor other than the above: 130% is applied.
565
G301
Second motor
excitation current
break point
9999
0 to 400 Hz Set an excitation current break point when the RT signal is ON.
9999
SF-PR/SF-HR/SF-HRCA motor: The predetermined frequency is applied.
Motor other than the above: 10 Hz is applied.
566
G302
Second motor
excitation current
low-speed scaling
factor
9999
0 to 300% Set an excitation current low-speed scaling factor when the RT signal is ON.
9999
SF-PR/SF-HR/SF-HRCA motor: The predetermined scaling factor is applied.
Motor other than the above: 130% is applied.