AC90 TENSION CONTROL FREQUENCY INVERTER MANUAL
Function Parameter specifications
105
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
Setting range: 0.00-1.00
Factory set: Accord model
F6.01
ASR integral time 1
Setting range: 0.01-10.00s
Factory set: Accord model
F6.02
ASR differential coefficient
time 1
Setting range: 0.0-100.0
Factory set: 0.0
F6.03
ASR filter time1
Setting range: 0.000-0.100s
Factory set: 0.005s
F6.04
ASR switch frequency 1
Setting range: 0.00-50.00Hz
Factory set: 5.00Hz
F6.05
ASR proportional gain 2
Setting range: 0.00-1.00
Factory set: Accord model
F6.06
ASR integral time 2
Setting range: 0.01-10.00s
Factory set: Accord model
F6.07
ASR differential coefficient
time 2
Setting range: 0.0-100.0s
Factory set: 0.0s
F6.08
ASR filter time 2
Setting range: 0.000-0.100s
Factory set: 0.001s
F6.09
ASR switch frequency 2
Setting range: 0.00-50.00Hz
Factory set: 10.00Hz
[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
Setting range: 10-250%
Factory set: 100%
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.
