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FR-A800/A800 Plus Series
on Manual Supplement
Instructi
1
Compatibility with SF-PR 0.4kW
The SF-PR 0.4kW is supported. Offline auto tuning is not required for operation under Advanced magnetic flux vector
control, Real sensorless vector control, or Vector control. (When the wiring length exceeds 30 m, offline auto tuning
must be performed.)
Automatic change of Pr.0 Torque boost and Pr.12 DC injection
brake operation voltage
• When initial values are set in Pr.0 and Pr.12, the Pr.0 and Pr.12 settings are automatically changed to the values
in the following table by changing the Pr.71 setting.
Inverter
FR-A820-[]
FR-A840-[]
00046(0.4K)
00023(0.4K)
00077(0.75K)
00038(0.75K)
00105(1.5K)
00052(1.5K)
00167(2.2K)
00083(2.2K)
00250(3.7K)
00126(3.7K)
00340(5.5K)
00170(5.5K)
00490(7.5K)
00250(7.5K)
00630(11K)
00310(11K)
00770(15K)
00380(15K)
00930(18.5K)
00470(18.5K)
01250(22K)
00620(22K)
01540(30K)
00770(30K)
01870(37K)
00930(37K)
02330(45K)
01160(45K)
03160(55K)
01800(55K)
03800(75K)
02160(75K)
or higher
or higher
*1
Pr.71 = "0, 2 to 6, 20, 23, 24, 40, 43, or 44" (standard motor)
*2
Pr.71 = "1, 13 to 16, 50, 53, or 54" (constant-torque motor)
*3
Pr.71 = "70, 73, or 74" (SF-PR)
NOTE
• When the Pr.0 and Pr.12 settings are changed from their initial values, the automatic change is not performed.
• When the SF-PR motor is selected (Pr.71 = "70, 73, or 74"), the output current may become large due to a small
load by setting Pr.81 Number of motor poles according to the number of the SF-PR motor poles.
• When the SF-PR motor is used, the output current tends to increase compared with the case where the SF-JR or
SF-HR motor is used. Depending on the load conditions, the output current may increase even though the torque
boost value has been automatically changed. When the protective function such as the electronic thermal O/L relay
(E.THT, E.THM) or stall prevention (OL, E.OLT) is activated, adjust the Pr.0 Torque boost according to the load.
Pr.0 value (%) after automatic change
Constant-
Standard
torque
*1
motor
*2
motor
SLD
ND
SLD
ND
/LD
/HD
/LD
/HD
6
6
5
6
6
4
4
4
3
4
4
2.5
4
4
2.5
3
2
2
3
2
2
2
2
1.5
2
2
1.5
2
2
1.5
2
2
1.5
2
2
1
2
2
1
1.5
2
1.5
2
1
1.5
2
1.5
2
0.7
1
1
1
*3
SF-PR
Pr.81
Pr.81
Pr.81
≠ 2, 4, 6
= 2
= 4
8
6.5
7.4
6
5.8
5
6
4.5
6.4
4.5
4.5
3.7
4.4
4.5
3.5
3.3
4.5
3
4
3.2
2.5
3.4
3
2
2
2.5
2
2
2
2
1
1
1
Pr.12 value (%) after automatic
change
Constant-
Standard
torque
*1
motor
motor
Pr.81
= 6
7.5
4
4
6.4
4
4
3.7
4
4
3.3
4
4
4.2
4
4
3.3
4
2
3.8
4
2
3.5
2
2
3.5
2
2
3
2
2
3
2
2
2.5
2
2
2.6
2
2
2.4
2
2
0.7
2
2
1
1
1
BCN-C22005-1001
*3
SF-PR
*2
5
4
2.5
2.5
2.5
2
2
1.5
1.5
1.5
1
1
1
1
1
1
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