The User Manual of JAC200 Series General Frequency Converter
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F6-04
=
2.0s
Retention time of starting frequency is 2.0s
Now, the frequency converter is in standby state and its output frequency is 0.00Hz
.
Example 2:
F0-03
=
0
Frequency source is digital reference
F0-08
=
10.00Hz
Digital set frequency is 10.00Hz
F6-03
=
5.00Hz
Starting frequency is 5.00Hz
F6-04
=
2.0s
The retention time of starting frequency is 2.0s.
Now, the frequency converter has accelerated to 5.00Hz, and shall accelerate again to 10.00Hz after 2.0 s
duration.
F6-05
Start DC braking current/ pre-excitation
current
Default value
0%
Set range
0%
~
100%
F6-06
Start DC braking time/ pre-excitation time
Default value
0.0s
Set range
0.0s
~
100.0s
Generally, start DC braking is used for restart after the running motor is stopped. Pre-excitation is used for
restart after magnetic field is set up for the asynchronous motor which can increase response speed.
Start DC braking current is valid only when the start mode is direct start. Now, the frequency converter
shall perform DC braking according to the set start DC braking current and then start after start DC braking
time. If the DC braking time is set as 0, the frequency converter shall start directly without DC braking.
If the start mode is pre-excitation start of asynchronous motor, the frequency converter shall set up magnetic
field first according to the set pre-excitation current and then start after the set pre-excitation time. If the
pre-excitation time is set as 0, the frequency converter shall start directly without pre-excitation process.
There are two situations for the relative base value of start DC braking current/ pre-excitation current.
1. The relative base value is the percentage base value relative to rated current of motor when the rated
current of motor is less than or equal to 80% of the rated current of the frequency converter.
2. The relative base value is the percentage base value relative to 80% of the rated current of the frequency
converter when the rated current of motor is greater than 80% of the rated current of the frequency
converter.
F6-07
Acceleration/deceleration
mode
Default value
0
Set range
0
Linear acceleration/deceleration
1
S-curve acceleration/deceleration A
2
S-curve acceleration/deceleration B
The frequency variation mode of frequency converter in start/stop process shall be selected.
0: Linear acceleration/deceleration