FR200 Series Vector control inverter
- 85 -
Time
（
S
）
Output frequency(Hz)
Dead time of forward
and reverse
Dead time of forward
and reverse
Fig. 6-4
F02.04
Start mode
Range:0
～
1
Default: 0
0: From start frequency
If the DC braking time
（
F02.08
）
is set to 0, the AC drive starts to run at the startup
frequency(F02.05) and keeps this frequency for a period of time set by F02.06, and then accelerated
to command frequency in accordance with the accel method and time..
If the DC braking time
（
F02.08
）
is not 0, the AC drive performs DC braking first and then starts to
run at the startup frequency. It is applicable to small-inertia load application where the motor is likely to
rotate at startup.
1: Rotational speed tracking restart
The AC drive judges the rotational speed and direction of the motor first and then starts at the
tracked frequency. Such smooth start has no impact on the rotating motor. It is applicable to the restart
upon instantaneous power failure of large-inertia load. To ensure the performance of rotational speed
tracking restart, set the motor parameters correctly.
F02.05
Start frequency
Range:0.00
～
10.00Hz
Default:0.00Hz
F02.06
Startup frequency holding time
Range:0.0
～
100.0s
Default:0.0s
To ensure the motor torque at AC drive startup, set a proper startup frequency. In addition, to build
excitation when the motor starts up, the startup frequency must be held for a certain period.
The startup frequency (F02.05) is not restricted by the frequency lower limit. If the set target
frequency is lower than the startup frequency, the AC drive will not start and stays in the standby state.
During switchover between forward rotation and reverse rotation, the startup frequency holding
time is disabled. The holding time is not included in the acceleration time but in the running time of
simple PLC.
F02.07
Startup DC braking current
Range:0.0
～
150.0%
Default:0.0
F02.08
Startup DC braking time
Range:0.0
～
100.0s
Default:0.0
Startup DC braking is generally used during restart of the AC drive after the rotating motor stops.
Pre-excitation is used to make the AC drive build magnetic field for the asynchronous motor before
startup to improve the responsiveness.
Startup DC braking is valid only for direct start (f02.05 = 0). In this case, the AC drive performs DC
braking at the set startup DC braking current. After the startup DC braking time, the AC drives starts to
run. If the startup DC braking time is 0, the AC drives starts directly without DC braking. The larger the
startup DC braking current is, the larger the braking force is.
F02.09
Speed search current
Range:0.0
～
180.0
Default:100.0%
100% corresponds to rated current of the drive. When output current of drive is less than this
parameter value, it will be deemed that the output frequency of drive has been kept in step with motor
speed and the search action finished.
F02.10
Sped search decel time
Range:0.0
～
10.0
Default:1.0s
This parameter sets the output frequency Decel time of speed search action. This time means
the
time required for Decel from maximum frequency to 0.The shorter the speed search Decel time is, the
faster the search will be. However, excessively rapid search may bring about inaccuracy of search
result.
F02.11
Sped search coefficient
Range:0.01
～
5.00
Default:0.30
Sped search coefficient
F02.12
Stop method
Range:0
～
1
Default: 0
Содержание FR200 Series
Страница 9: ...FR200 Series Vector control inverter 9...
