N700 Operating Instructions and Parts Manual
12. Explanation of H-Group
139
Status of running
Phenomena
Contents of adjustment
Adjusting
parameter
Speed fluctuation
is minus(-)
Set “Motor constant R2”bigger and bigger slowly
until 1.2 times for preset constant.
H004/H204
H010/H210
Driving
Speed fluctuation
is plus(+)
Set “Motor constant R2” smaller and smaller slowly
until 0.8 times for preset constant.
H004/H204
H010/H210
Set “Motor constant R1”bigger and bigger slowly
until 1.2 times for preset constant.
H003/H203
H009/H209
Regenerating
Lack of torque
at low frequency
Set “Motor constant Io” bigger and bigger slowly
until 1.3 times for preset constant. NOTE)
H006/H206
H012/H212
At starting
The shock is occurred
at starting
Set “Motor constant J” smaller for preset constant.
H007/H207
H013/H213
At deceleration
Unstable of motor
rotation
Set “Motor constant J” smaller for preset constant.
H007/H207
H013/H213
During torque limit
Insufficient torque
during
torque limit at low
speed
Set overload restriction level lower than torque limit
level.
b031
C007~C010
At low frequency
operation
Irregular of rotation
Set “Motor constant J” bigger for preset constant.
H007/H207
H013/H213
NOTE)
This case is that the motor control method (F012) was set as 4.
If the code F012 was set as 5, Io can be modified bia H008/H208/H014/H214.
Table 12- 4 Sensorless vector control (SLV)
12.4
Sensored vector control(V2)/0Hz-Sensored vector control(0Hz-V2)
(1) It is possible to realize precision and high torque by this function.
(2) Please set F012 to 6(V2) or 7(0Hz-V2) for this function.
(3) If programming the inverter for sensored vector use, It will need an encoder and a Feedback
Option Card for vector control function.
(4) Please refer to the feedback option card manual for this function.