Vc Control Parameter - Veichi AC90 Manual

AC90 TENSION CONTROL FREQUENCY INVERTER MANUAL
0: PG port
1: PUL port
Note: Under closed loop mode, while feedback signal is 2 phase input and PG card feedback direction is
reverse to motor output direction.Inverter can not run normally. Please adjust [F5.15] LED "00" digit
setting.
PG pulse per loop: Set according sensor specification.
PG line-cut inspection time: Set delay time for ensure sensor line break while sensor line-break inspection is valid.

9.7 VC control parameter

F6.00 ASR proportional gain 1
F6.01 ASR integral time 1
ASR differential coefficient
F6.02
time 1
F6.03 ASR filter time1
F6.04 ASR switch frequency 1
F6.05 ASR proportional gain 2
F6.06 ASR integral time 2
ASR differential coefficient
F6.07
time 2
F6.08 ASR filter time 2
F6.09 ASR switch frequency 2
[F6.00-F6.09] is only valid under VC control and PG V/F control. It changes speed response by set proportional gain P
and integral timeI of speed adjustor.
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 erborn
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: Set ASRswitch frequency [F6.04] and
[F6.09] 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 [F6.04] and [F6.09]. The first group of ASR paremeter is valid while output frequency is under
switch frequency 1 [F6.04]. The second group of ASR paremeter is valid while output frequency is between switch
frequency 1 [F6.04] and switch frequency 2 [F6.09]. Parameter linearly transits from switch frequency 1 [F6.04] to
switch frequency 2 [F6.09] prorate. Adjust ASR proportional gain 1 [F6.00] and ASR integral time 1 [F6.01] at low
speed to ensure no surge and good response. Adjust ASR proportional gain 2 [F6.05] and ASR integral time 2 [F6.06]
at high speed to ensure no surge and good response.
Usually, ASR differential coefficient time is not need to set.It is used to restrain suddent speed change. If it is too big,
surge comes easily.
F6.10 VC control slip coefficient
Used in occocation need quick response and high speed accuracy. Adjust this paramerter properly, the system
response can be improved and stable speed error can be eliminated.
Setting range: 0.00-1.00
Setting range: 0.01-10.00s
Setting range: 0.0-100.0
Setting range: 0.000-0.100s
Setting range: 0.00-50.00Hz
Setting range: 0.00-1.00
Setting range: 0.01-10.00s
Setting range: 0.0-100.0s
Setting range: 0.000-0.100s
Setting range: 0.00-50.00Hz
Setting range: 10-250%
105
Function Parameter specifications
Factory set: Accord model
Factory set: Accord model
Factory set: 0.0
Factory set: 0.005s
Factory set: 5.00Hz
Factory set: Accord model
Factory set: Accord model
Factory set: 0.0s
Factory set: 0.001s
Factory set: 10.00Hz
Factory set: 100%