Service manual

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65
cause unstable set frequency.
Analog filtering time constant must be bigger than F3.11(sampling cycle),
otherwise the system would run unsteadily.
F2.01
FWD REV run
dead-section time
Range: 0.0－3600.0S 0.1S
During process of transiting from
forward run to reverse run or from
reverse run to forward run, transition
time during which the inverter wait at
zero output frequency, as t
1
shown in
Fig.6-9.
F2.02 Automatic energy save run Range: 0, 1 0
To reach better energy save result, the inverter would detect load current to get
the purpose of automatic energy save.
0: no action
1: action
Empty or lightly loaded motor can get the purpose of energy save by detecting
load current to adjust output voltage properly. Automatic energy save run is mainly
applied to occasion of stable load, speed.
F2.03 AVR function Range: 0, 1, 2 0
AVR namely automatic voltage adjusting function. Indicate that the inverter can
output constant voltage by AVR function when the inverter input voltage
fluctuates.
0: no action
1: action all the time
2: no action only during Dece
Fig.6-9 FWD REV run dead-section time
time
t
1
Output frequency
note
This function commonly applied to load such as blower and water pump etc.
(1) when input voltage is higher than rated value, under normal situation should set
F2.03=1. When F1.05=0 namely inverter in decelerating stop，motor Dec time is
short and running current would be bigger. But the motor decrease speed placidly
with small run current and long Dec time if choose AVR action all the time.
(2) should set F2.03=0, namely AVR function ineffective when the motor system
oscillates which caused b
y
choosin
g
AVR function.
note