Vc Control Parameter; First-Order Filter Of Encoder Speed Inspection; Electric Torque Limit; Power Generation Torque Limit - Veichi AC300 Series Technical Manual

AC300 Series Vector Control Inverter Manual
F05.34 Encoder transmission ratio numerator
F05.35 Encoder transmission ratio denominator
If the motor encoder is not installed in the motor shaft,it could obtain the motor speed and position indirectly through
the transmission setting to achieve closed-loop VC function.The premise is that the motor shaft and encoder is rigid
connection.While under synchronous motor controls,the encoder lines converted to motor shaft could not be much less.
The gear ratio setting range should be controlled within the range of 100~0.01, otherwise the inverter will report an
abnormal PG parameter error.
F05.36

First-order filter of encoder speed inspection

Promote the filter time properly if the motor encoder feedback noise is too big, but prolonging the filtering time will
decrease system response performance.In some occasions with higher requirements on response performance, if the
filter time is too long,it will lead to system oscillation.
PG feedback monitoring LED "0" digit: C00.29 monitor PG
F05.39
selection feedback speed. 0: invalid, 1: valid

8.7 VC Control Parameter

F06.00 ASR proportional gain 1 Setting range: 0.01-100.00
F06.01 ASR integral time 1 Setting range: 0.000-6.000
F06.02 ASR filter time1 Setting range: 0.0-0.100.0ms
F06.03 ASR switch frequency 1 Setting range: 0.00-max frequency
F06.04 ASR proportional gain 2 Setting range: 0.01-100.00
F06.05 ASR integral time 2 Setting range: 0.000-6.000
F06.06 ASR filter time 2 Setting range: 0.0-0.100.0ms
F06.07 ASR switch frequency 2 Setting range: 0.00-max frequency
ASR proportional gain and ASR integral time adjustment: System response will be quicker by increase proportional
gain. But if proportional gain is too big, there is surge easily. System response will be quicker by decreasing integral
time. But if integral time is too short, there is surge easily. Usually, adjust proportional gain firstly, then adjust integral
time.
Note: If ASR proportional gain is too big and ASR integral time is too small, over voltage maybe caused while
system start to high speed quickly (without extra braking resistance or braking unit). It is caused by reborn
energy feedback and can be avoided by adjust ASR proportional gain bigger and ASR integral time smaller.
ASR proportional gain and ASR integral time adjustment at high/low speed:
Function Parameter Specifications
Setting range: 1~32767 Factory default:1
Setting range: 1~32767 Factory default:1
Setting range: 0.0-100.0ms Factory default: 1.0ms
Factory default: 0
Factory set: 10.00
Factory set: 0.500
Factory set: 0.0ms
Factory set: 0.00Hz
Factory set: 10.00
Factory set: 0.500
Factory set: 0.0ms
Factory set: 5.00Hz
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AC300 Series Vector Control Inverter Manual
Set ASR switch frequency [F06.03] and [F06.07] while it has quick response requirement for load at high/low speed.
Usually increase proportional gain and decrease integral time to improve response at low frequency running. Usually
adjust as this: Set right [F06.03] and [F06.07]. The first group of ASR parameter is valid while output frequency is under
switch frequency 1 [F06.04]. The second group of ASR parameter is valid while output frequency is between switch
frequency 1 [F06.03] and switch frequency 2 [F06.07]. Parameter linearly transits from switch frequency 1 [F06.03] to
switch frequency 2 [F06.07] pro rate. Adjust ASR proportional gain 2[F06.04] and ASR integral time2 [F06.05] at low
speed to ensure no surge and good response. Adjust ASR proportional gain 1 [F06.00] and ASR integral time 1[F06.01]
at high speed to ensure no surge and good response. While the switch frequency1 [F06.03] is set 0, just use the first
group ASR parameter.
F06.08

Electric torque limit

Setting range: 0.0~400.0%
F06.09

Power generation torque limit

Setting range: 0.0~400.0%
Set the upper limit of the torque output of the motor. The percentage is relative to the rated torque of the motor. It is
valid under the asynchronous machine, synchronous machine open loop and closed loop vector. The motor torque
output is also limited by the inverter output current limit [F10.01] and output power [F06.27]. For details, please refer to
the function code description.
F06.10 Current loop D-axis proportional gain
F06.11 Current loop D-axis integral gain
F06.12 Current loop Q-axis proportional gain
F06.13 Current loop Q-axis integral gain
Set the PI parameters of the current loop when the asynchronous machine and synchronous machine vector control.
When vector control occurs, if speed, current oscillation, and instability occur, the gain can be appropriately reduced to
achieve stability; at the same time, increasing the gain helps to improve the dynamic response of the motor.
F06.15 Vector control motor slip compensation
F06.16 Vector control generator slip compensation
The PM VC control is valid. While under open-loop VC control, the slip compensation coefficient is used to adjust the
motor speed stabilization accuracy. When the motor speed is lower than the set value with load, the motor speed is
increased, and vice verse.
While under closed loop VC control, this value is used to adjust the output torque of the motor and the output current
of the linearity.When the motor is with rated load and the motor current is larger than the nameplate rated standard
deviation, if it is larger then reduce the value, and it is too small then increase the value
.
F06.18 position compensation control Setting range:0~1
F06.19 Compensation gain Setting range:0.0~250.0%
Function Parameter Specifications
Factory default: 180.0%
Factory default: 180.0%
Setting range: 0.001~4.000 Factory default: 1.000
Setting range: 0.001~4.000 Factory default: 1.000
Setting range: 0.001~4.000 Factory default: 1.000
Setting range: 0.001~4.000 Factory default: 1.000
Setting range: 0.0-250.0% Factory default: 100.0%
Setting range: 0.0-250.0% Factory default: 100.0%
Factory default: 0
Factory default: 10.0%
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