SJ700
2
Inverter
Configur
ing Dr
iv
e
P
a
ra
met
e
rs
3–17
Vector Control with Encoder Feedback –
This method of torque control uses an encoder as a
motor shaft position sensor. Accurate position feedback allows the inverter to close the velocity
loop and provide very accurate speed control, even with variations in motor loads. To use
encoder feedback you will need to add an SJ–FB Encoder Feedback Card in the inverter’s
expansion bay. Please refer to
“Expansion Cards” on page 5–5
in this manual or the SJ–FB
manual for details. The following table shows the methods of torque control selection.
Func.
Code
Name/
Description
Keypad
Range and Settings
Defaults
Run
Mode
Edit
Lo Hi
SRW
OPE
FEF2
FE2
(EU)
FUF2
FU2
(USA)
FF2
F2
(Jpn)
A041
Torque boost method selection
MANUAL
00
Manual torque boost
00
00
00
✘ ✘
AUTO
0 1
Automatic torque boost
A241
Torque boost method selection, 2nd
motor
MANUAL
00
Manual torque boost
00
00
00
✘ ✘
AUTO
0 1
Automatic torque boost
A042
Manual torque boost value
0.0 to 20.0 (%)
1.0
1.0
1.0
✔ ✔
Can boost starting torque between 0 and 20% above
normal V/f curve
A242
Manual torque boost value, 2nd motor
0.0 to 20.0 (%)
1.0
1.0
1.0
✔ ✔
Can boost starting torque between 0 and 20% above
normal V/f curve
A342
Manual torque boost value, 3rd motor
0.0 to 20.0 (%)
1.0
1.0
1.0
✔ ✔
Can boost starting torque between 0 and 20% above
normal V/f curve
A043
Manual torque boost frequency adjustment
0.0 to 50.0 (%)
5.0
5.0
5.0
✔ ✔
Sets the frequency of the V/f breakpoint A in graph (top of
previous page) for torque boost
A243
Manual torque boost frequency adjustment, 2nd motor
0.0 to 50.0 (%)
5.0
5.0
5.0
✔ ✔
Sets the frequency of the V/f breakpoint A in graph (top of
previous page) for torque boost
A343
Manual torque boost frequency adjustment, 3rd motor
0.0 to 50.0 (%)
5.0
5.0
5.0
✔ ✔
Sets the frequency of the V/f breakpoint A in graph (top of
previous page) for torque boost
A044
V/f characteristic curve selection,
1st motor
VC
00
V/f constant torque
00
00
00
✘ ✘
Torque control modes
VP
0 1
V/f variable torque
FREE-V/F
02
V/f free-setting curve
SLV
03
Sensorless vector SLV
0SLV
04
0Hz domain SLV
V2
05
Vector control with encoder
feedback
A244
V/f characteristic curve selection,
2nd motor
VC
00
V/f constant torque
00
00
00
✘ ✘
Torque control modes
VP
0 1
V/f variable torque
FREE-V/F
02
V/f free-setting curve
SLV
03
Sensorless vector SLV
0SLV
04
0Hz domain SLV