Operation Control Parameters Group; Start Mode; Start Pre-Excitation Time; Start Frequency - Veichi AC300 Series Technical Manual

AC300 Series Vector Control Inverter Manual
It is used to select whether the negative frequency is allowed to change the current running direction of the inverter
when the frequency reference value is negative.
0: Invalid frequency control direction If the calculation result is negative, the inverter outputs a frequency of 0.00Hz.
1: Frequency control direction is valid If the calculation result is negative, the inverter changes the current running
direction and outputs the corresponding frequency.
Tips:
1. The set value of this parameter will not be changed when the factory value is restored. When this
parameter is set to a value, all commands that run the command channel (operating keyboard, external
terminal, RS485 communication, optional card, and program operation) are affected by the selected
value.
F00.17 G/P Model Setting Setting range: 0～1
The set value of this parameter will not be changed when the factory value is restored.
0: Model G is suitable for constant torque loads.
1: Model P type machine Suitable for variable torque load (fan, pump type load).
The AC300 series inverter adopts the G/P combination method for constant torque load (G type) to adapt the motor
power ratio to the fan water. The pump type load (P type) is a small one.
F00.18 Reserved
F00.19 Parameter initialization Setting range: 0～3
0: no operation
1: Restore factory value (do not restore motor parameter F05.00-F05.19) After the parameters are restored to the
factory default values, the function parameters are restored to the default values before leaving the factory, excluding
the motor parameter group.
2: Restore factory defaults (including motor parameters F05.00-F05.19) After the parameters are restored to
factory defaults, the function parameters are restored to the factory default values and restored together with the motor
parameter group.
3: Clear fault record Clear all historical fault information recorded in [C01.00~C01.23].
Tips:
1. The factory default setting [F00.19=1 or 2] is restored, and the current setting values of the parameters
[F00.16-F00.17] and [F04.14~F04.21] are not changed.
2. When the factory default value is restored, the keyboard will display "SAVE". After the "SAVE" jumps to
the parameter interface, the parameter initialization is completed. If the power is suddenly turned off
during the display of "SAVE", the inverter only performs some parameters to restore the factory values.
Please power on again to restore the factory values.
Function Parameter Specifications
Default: 0
Default: 0
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AC300 Series Vector Control Inverter Manual

8.2 Operation Control Parameters Group

F01.00 Start-up running mode Setting range: 0～2
F01.01

Start pre-excitation time

Setting range: 0.00～60.00s
F01.02 Start-up frequency Setting range: 0.00～60.00Hz
F01.03 Start-up frequency holding time Setting range: 0.0～50.0s
F01.04 Braking current before start Setting range: 0.0～150.0%
F01.05 Braking time before start Setting range: 0.0～60.0s

Start mode:

0: Start the inverter by the starting frequency and control the inverter to start with the starting frequency set by
[F01.02] and the starting frequency duration set by [F01.03]. It is suitable for occasions where the static friction torque is
large and the load inertia is small or when the user cooperates with an external mechanical brake device. (After the
motor stops, it will start again. If the motor is in the rotating state before starting, it may cause overcurrent fault.)
1: First DC braking and then starting from the starting frequency Firstly, the pre-starting braking current [F01.04] and
the pre-starting braking time [F01.05] apply a certain amount of DC braking energy to the load motor (ie
electromagnetic brake), and then start from the starting frequency; suitable for small inertia loads with forward or
reverse rotation in the stop state.
2: Start after the speed tracking and direction judgment. The inverter first detects the speed and direction of the
motor, and then starts to increase to the given frequency according to the acceleration/deceleration time at the detected
speed.
Start pre-excitation time:
This parameter is used to set the time for pre-excitation of the asynchronous motor at startup. This parameter can
establish a magnetic field before the motor starts, which can effectively improve the starting performance of the motor
and reduce the starting current and starting time.

Start frequency:

It is the initial output frequency when the inverter starts. Setting a suitable starting frequency can have a higher
starting torque. For some loads with a large static friction at rest, some momentum can be obtained at the moment of
starting. However, if the set value is too large, problems such as E.oC1 may occur.
Start frequency duration:
It refers to the time when the inverter maintains the starting frequency and starts to enter normal acceleration and
deceleration after the time is maintained.
Braking current before starting:
It refers to the amount of braking current that the inverter sends into the motor during DC braking. 100.0%
corresponds to the rated current of the motor. The DC braking function at start-up is only available when [F01.00] is set
to "1". Setting this parameter to 0 starts DC braking execution is invalid.
Function Parameter Specifications
Default: 0
Default: Model setting
Default: 0.50Hz
Default: 0.0s
Default: 60.0%
Default: 1.0s
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