Mitsubishi Electric FR-A820-00046 (0.4K), Instruction Manual

Page: 894 / 1218

(G) Control parameters Parameters
5 - 692
5.16.3 Load pattern selection
●
Optimal output characteristics (V/F characteristics) for application or load characteristics can be
selected.
●
Under Advanced magnetic flux vector control or Real sensorless vector control, the excitation
current scaling factor in the low-speed range can be adjusted.
Parameters referred to
Pr. 14 Load pattern selection => page 5-692
Pr. 29 Acceleration/deceleration pattern selection => page 5-248
Pr. 71 Applied motor => page 5-451
Pr. 83 Rated motor voltage => page 5-72
Pr. 84 Rated motor frequency => page 5-72
Pr. 178 to Pr. 189 (input terminal function selection) => page 5-439
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 signal OFF), Pr. 86 (X17 signal ON)
15
Forward rotation excitation current low-speed scaling factor:
Pr. 617 (X17 signal 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.
V/F V/F V/F