F4 V/Fcontrol Group - Powtran PI9000-S Series User Manual

Chapter5.Function parameter
DCpre-excitation
F3.05
current
DCpre-excitation
F3.06
time
Start DC braking, generally is used to restart the motor after it stops. Pre-excitation is
used to create magnetic field for asynchronous motor and then start the motor to improve
the response speed.
Start DC braking is only active when the start mode is the direct startup. The inverter
firstly performs DC braking at the set value of DC braking current, after the start DC
braking time is passed, and then start running. If the DC braking time is set to 0, the
inverter will directly start and neglect DC braking. The largerDC braking current, the
greater braking force.
If the startup mode is the asynchronous motor pre-excitation start, the inverter firstly
creates magnetic field at the preset pre-excitation current, after the set pre-excitation time
is passed and then start running. If the pre-excitation time is set to 0, the inverter will
directly start and neglect pre-excitation.
Start DC braking current/pre-excitation current is the percentage of inverter rater
current.
F3.07
Stop mode
Initial frequency of
F3.08
stop DC braking
Waiting time of stop
F3.09
DC braking
Stop DC braking
F3.10
current
F3.11 Stop DC braking time

5-1-6.F4 V/Fcontrol group

Code Parameter name
F4.00
V/F mode setting
0% to 100%
0.0s to 100.0s
Deceleration parking
Free stop
0.00Hz to
frequency)
0.0s to 100.0s
0% to 100%
0.0s to 100.0s
Setting range
Line V/F
Multi-point V/F
Square V/F
1.2 square V/F
1.4 square V/F
1.6 Square V/F
1.8 Square V/F
V/F complete separeation
38
0%
0.0s
0
1
F0.19 (maximum
Factory
0
1
2
3
4
6
8
10
★
★
☆
0
☆
0.00Hz
☆
0.0s
☆
0%
☆
0.0s
Cha
nge
range Lim
it
★
0