The User Manual of JAC200 Series General Frequency Converter
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If the pre-excitation time is set as 0, the frequency converter shall cancel the pre-excitation process and start
from starting frequency. If the pre-excitation time is not 0, pre-excitation shall be
performed before starting
which shall improve the dynamic response performance of motor.
F6-01
Speed tracking restart
Default value
0
Set range
0
Start from stopping frequency
1
Start from zero speed
2
Start from maximum frequency
In order to complete speed tracking process as soon as possible, the mode in which the frequency converter
tracks the motor speed shall be selected as follows:
0: Track downward from the frequency from power failure. Generally, this mode shall be selected.
1: Track upward from Frequency 0. This mode shall be used when restarting after a long time of power
failure.
2: Track downward from maximum frequency. This mode is used in power generation load.
F6-02
Speed of speed tracking
Default value
20
Set range
1
~
100
In speed tracking restart, the speed of speed tracking shall be selected.
The greater the parameter is, the faster the tracking speeds is. However, unreliable tracing effect may be
generated due to excessive set value.
F6-03
Starting frequency
Default value
0.00Hz
Set range
0.00Hz
~
10.00Hz
F6-04
Retention time of starting
frequency
Default value
0.0s
Set range
0.0s
~
100.0s
Please set appropriate starting frequency to ensure the motor torque when starting. The starting frequency
shall be maintained for a certain time to ensure that the flux is set up sufficiently when the motor starts.
The starting frequency F6-03 is not subject to lower limit frequency. However, the frequency converter
shall not start but stay in standby state when the set target frequency is lower than starting frequency.
In forward and reverse switching, the retention time of starting frequency function is invalid.
Retention time of starting frequency is included in acceleration time, but included in running time of simple
PLC.
Example 1:
F0-03
=
0
Frequency source is digital reference
F0-08
=
2.00Hz
Digital set frequency is 2.00Hz
F6-03
=
5.00Hz
Starting frequency is 5.00Hz