Watt Drive V3000-015HF, Manual

Page: 137 / 180

Explanation of Function
Seite 137 / 180
A001 Frequency commanding method
A044 Control method
F001 Output frequency setting
b040 Selection of torque limit
b041-b044 Torque limit of 4zone
H002 H202 Selection of first, second
motor constant
H003 H203 Selection of first, second
motor capacity
H004 H204 Selection of first, second
motor pole
H005 H205 First, second speed response
H020 H220 First, second motor constant R1
H021 H221 First, second motor constant R2
H022 H222 First, second motor constant L
H023 H223 First, second motor constant I0
H024 H224 First, second motor constant J
H050 H250 First, second PI proportion gain
H051 H251 First, second PI integration
gain
H052 H252 First, second P proportion gain
SENSORLESS VECTOR CONTOROL
û
This function is the method that the revolution of motor and output torque are
estimated by output current, voltage of the inverter and motor constant of setting.
It is possible to operate high starting torque and high accuracy at law
frequency(0.5Hz).
û
In the case of using this function, please set 003 in A004.
û
In the case of using this function, please set surely the suitable motor constant
of using the motor according to the parameter of “selection of motor constant” .
Caution!
û
If the inverter operates less than twice capacity for the maximum adopted motor,
the full performances may not be demonstrated.
û
If satisfactory performance can not be obtained, please adjust the motor
constant for the phenomena according to following table;
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. H021,H221 Driving
Speed fluctuation is
plus Set “Motor constant R2” smaller and
smaller slowly until 0.8 times for preset constant. H021,H221
Set “Motor constant R1”bigger and bigger
slowly until 1.2 times for preset constant. H020,H220 Regeneratin
g Lack of torque at low
frequency
Set “Motor constant I0” bigger and bigger slowly until 1.2
times for preset constant. H023,H223
At starting The shock is occurred at
starting Set “Motor constant J” bigger and bigger slowly until 1.2
times for preset constant. H024,H224
Set speed response smaller. H005,H205 At
deceleration Unstable of motor
rotation
Set “Motor constant J” smaller for preset
Constant. H024,H224
During
torque limit Insufficient torque
during torque limit
at low speed
Set overload restriction level lower than torque limit level b021
b041-b044
At low
frequency
operation Irregular of rotation Set “Motor constant J” bigger for preset constant. H024,H224
Reference code