HNC Electric HV590 Series, Руководство пользователя

Страница: 136 / 192

122
Section V. Parameter Function Table
A2.61 Motor2 control mode
Speed sensorless vector control(SVC) 0
0
★
Speed sensor vector control(FVC) 1
V/F control 2
A2.62
Motor 2 acc./dec. time
selection
Same with the first motor 0
0
☆
Acceleration time1 1
Acceleration time 2 2
Acceleration time 3 3
Acceleration time 4 4
A2.63 Motor 2 torque hoist
Auto torque hoist
0.0%
-
☆
0.1%~30.0%
A2.65
Motor 2 oscillation
suppression gain
0~100 -
☆
5.21 The third motor control
：
A5.00-A5.09
Code
Description/
Keyboard Display
Setting Range
Factory
Setting
Change
Limit
A5.00
DPWM switching frequency
upper limit
0.00Hz~15.00Hz
12.00Hz ☆
A5.00 is only valid for VF control mode. In asynchronous motor VF running mode, square wave
dertermines the continuous modulation mode. Wave value
＜
A5.00
：
7-stage continuous modulation
mode. Wave value
＞
A5.00
：
5-stage continuous modulation mode.
In 7-stage continuous modulation mode, inverter switch loss is relatively bi g, but current ripple is
small. In 5-stage continuous modulation mode, inverter switch loss is relatively small, but current ripple
is big. High frequency may lead to motor operation instability, generally there is no need of modification.
For VF operation instability please refer to P3.11. For inverter loss and temperature rise please
refer to P0.15.
A5.01
PWM modulation mode
Asynchronous modulation 0
0
☆
Synchronous modulation 1
This parameter is only valid for VF control mode. Asynchronous modulation refers to carrier
frequency that linear changes with output frequency, and ensure that the ratio of them (carrier ratio)
remains the same. Generally high output frequency is benefit for output voltage quality.
Generally, synchronous modulation is not needed at low frequencies ( below 100Hz), because the
ratio of carrier frequency and output frequency is relatively high,asynchronous modulation advantage is
more obvious.
When running frequency is greater than 85Hz, synchronous modulation is valid. And fixed as
asynchronous modulation mode when below this frequency.
A5.02
Dead-zone compensation
mode selection
No compensation 0
1 ☆
Compensation mode 1 1
Generally speaking , A5.02 needs not to be modified. Only when the output voltage waveform quality
has special requirements or motor appears abnormal phenomenon would users switch the compensation
mode.