AC90 TENSION CONTROL FREQUENCY INVERTER MANUAL
Function Parameter specifications
81
Control
mode
Track mode
VC
without
PG
V/F
without PG
VC with PG
(PG input)
VC with PG
(PUL input)
V/F
with PG (PG
input)
V/F
with PG
(PUL input)
Inner
track
Valid
Valid Valid Valid
Out
track Valid Valid
Start pre-excitation time:
It is used to set pre-excitation time for asynchonism motor while start. It can improve start
performance and reduce start current and start time.
Start frequency:
It is the initial output frequency while start. Right start frequency can bring big start torque. While start,
certain instant force can be brought for load with big static friction under static state.
Start frequency hold time:
How long the start frequency be hold.
Braking current before start:
It is the braking current that the inverter gives the motor while DC braking. It is based on
the output rated current of the inverter. Only when
[F1.00]
is 1, there is DC braking while start.
Braking time before start:
It is the time that DC braking current hold while start. Only when
[F1.00]
is 1, there is DC
braking while start. There is no DC braking while braking time is 0.0s.
Attention: Start frequency is not limited by [F0.12], but limited by [F1.26] min output frequency. If setting is
smaller then [F1.26], the output frequency is 0.00Hz.
Note: Under process of REV/FWD switch while normal running or process of frequency setting change while
up/down running, frequency inverter starts from or reduces to min output frequency [F1.26] and than output
0.00Hz.
Note: In process of inverter start ACC, inverter output 0 when given frequency is small then starts frequency.
F1.06
Speed track waiting time
Setting range: 0.00-60.00s
Factory set: Accord model
It is defined as the waiting time before speed tracking while receiving the run order. After this time, inverter runs to give
frequency according to the frequency and direction detected out and the ACC/DEC time setting.
For big inertia load, prolong speed track waiting time to reduce the instant impact current.
F1.07
Stop mode
Setting range: 0-1
Factory set: 0
0: DEC to stop
ACC to 0.00Hz and stop output. While give frequency is small then stop DC braking start frequendy
[F1.08]
, inverter output frequency will change to 0. DC brake and stop work. Otherwise inverter wills DEC to min output
