Hyundai hiRUN N300-055H, Instruction Manual

Page: 130 / 165

0Hz Domain sensorless vector control
When this function is performed, raised torque running is possible
0Hz range (0-2.5Hz command) by Hyundai original torque control.
When this function is performed, set A004 in 04.
When this function is performed, set the motor most applicable setting,
properly according to the another item motor constant selection.
Precautions
(1) Set the inverter one frame up of the motor.
(2) If this inverter operates less than twice capacity for the maximum
adopted motor, the full performance may not demonstrated.
(3) If satisfactory characteristics can not be obtained during the 0Hz
sensorless vector running, please adjust motor constant for the
phenomena according to the following table.
(4) Please use carrier frequency in more than 2.1kHz absolutely.
Inverter can't operate normally in less than 2.1kHz.
(Note) 1 Use carrier frequency over 2.1kHz certainly. It doesn't operate correctly under 2.1kHz.
2 Torque limit setting value (b041 - b044) is from following formula and T is calculated by following formula.
Don't set T over 200% otherwise it will cause of failure.
Formula A: T=Torque limit setting value x (inverter capacity) / (Motor capacity)
(Example) Inverter 0.75kW, At motor 0.4kW, Torque limit setting that is for T = 200% become from formula A
Torque limit setting value (b041-b044) = T x (Motor capacity) / (Inverter capacity)
= 200% x (0.4kW) / (0.75kW) = 106%
Status of running
Phenomena
Contents of adjustment
Adjusting
parameter
Speed fluctuation is Minus
Speed fluctuation is plus
Lack of torque at low
frequency
The shock is occurred at
starting
Unstable of motor rotation
Irregular of rotation
Set"Motor constant R2"bigger and bigger slowly
until 1.2 times for preset constant.
Set"Motor constant R2" smaller and smaller slowly
until 0.8 times for preset constant.
Set"Motor constant R1"bigger and bigger slowly
until 1.2 times for preset constant.
Set"Motor constant I0"bigger and bigger slowly
until 1.2 times for preset constant.
Set"Motor constant J"bigger and bigger slowly
until 1.2 times for preset constant.
Set speed response smaller
Set"Motor constant J"smaller for preset constant.
Set"Motor constant J"bigger for preset constant.
Driving
Regenerating
At starting
At deceleration
At low frequency
operation
H021/H221
H021/H221
H020/H220
H023/H223
H024/H224
H005/H205
H024/H224
H024/H224
Relation code
A001 : Frequency command selection
A044, A244 : Control method
F001
: Frequency command setting
b040 : Torque limit selection
b041-b044 : 4zone torque limit
H002, H202 :
H003, H203 : capacity selection
H004, H204 : pole selection
H005, H205 : 1 /2 speed response
H020, H220 : 1 /2 motor R1
H021, H221
H022, H222
H023, H223
H024, H224
H050, H250
H051, H251
H052, H252
st nd
st nd
1 /2 motor constant selection
1 /2 motor
1 /2 motor
: 1 /2 motor R2
: 1 /2 motor L
: 1 /2 motor I0
: 1 /2 motor J
: 1 /2 Pl proportion gain
: 1 /2 Pl integration gain
: 1 /2 P proportion gain
H060, H260 : 1 /2 0SLV limiter
st nd
st nd
st nd
st nd
st nd
st nd
st nd
st nd
st nd
st nd
st nd
N300 INSTRUCTION MANUAL
Chapter 4 Explanation of function