Lower Limit Frequency; Led “0” Digit: Reverse The Running Direction; Led “00” Digit: No Direction Of Operation - Veichi AC300 Series Technical Manual

AC300 Series Vector Control Inverter Manual

Lower limit frequency:

The lower limit frequency is the lower limit of the given frequency and limits the given frequency.
When the set frequency is lower than the lower limit frequency, the inverter sets the lower limit frequency operation
mode by [F00.13].
Lower limit frequency operation mode:
0: Stop output, enter the pause operation state, maintain the running state, no voltage output.
1: Lower limit frequency operation When the actual set frequency is lower than the lower limit frequency, the inverter
runs at the limit frequency.
Note:
1. The maximum frequency, upper limit frequency and lower limit frequency should be set carefully
according to the requirements of the operating conditions. In addition to the upper limit frequency and
lower limit frequency, the output frequency of the inverter during operation is also limited by the set
values of the start frequency, stop detection frequency, stop DC brake start frequency, and skip
frequency. The relationship between the maximum frequency, upper limit frequency and lower limit
frequency is shown in the figure below.
Schematic diagram of upper and lower frequency and maximum frequency
F00.14 ACC time 1 Setting range: 0.00～650.00s
F00.15 DEC time 1 Setting range: 0.00～650.00s
The acceleration time refers to the time required for the output frequency to accelerate from 0.00 Hz to the time
reference frequency, and the deceleration time refers to the time required for the output frequency to decelerate from
the time reference frequency to 0.00 Hz. The maximum frequency, fixed frequency 50Hz, and given frequency can be
selected as the time reference frequency by parameter [F01.16] LED bits. The acceleration/deceleration curve is
selected by [F01.16] LED ten-digit line and S-curve acceleration/deceleration. See parameter [F01.16] for details.
Function Parameter Specifications
Default: Model setting
Default: Model setting
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AC300 Series Vector Control Inverter Manual
Four groups of acceleration and deceleration time can be selected for normal frequency acceleration and
deceleration. Acceleration/deceleration time 1 is set by [F00.14~F00.15], acceleration/deceleration time 2,
acceleration/deceleration time 3, and acceleration/deceleration time 4 are set by [F01.21~F01.26].
Acceleration/deceleration time 1 is the default acceleration/deceleration time group. If you want to select other
acceleration/deceleration time group, you can select it through the control terminal. For details, see parameter
[F02.00~F02.09].
When the program is running, each of the program running segments can select one of the four groups of
acceleration and deceleration time, regardless of the terminal selection. See [F12.31~F12.45] for details.
The jog acceleration and deceleration time are set by [F01.39, F01.40].
The emergency stop deceleration time is set by [F01.27].
F00.16 Rotary direction selection Setting range: 0000～0121
LED "0" digit: reverse the running direction
Used to select the adjustment of the motor running control direction.
0: The direction is unchanged The actual steering of the motor is the same as the required steering, and the current
motor direction is not adjusted;
1: Inverted direction The actual steering of the motor is opposite to the required steering, and the current motor
direction is adjusted;
LED "00" digit: no direction of operation
Used to select the effectiveness of the motor's running control direction.
0: Allow forward and reverse commands The inverter accepts forward and reverse commands to control motor
operation;
1: Only forward command is allowed. The inverter only accepts the forward rotation control command to control the
motor operation. If the inverter is given the reverse command, the inverter will not run.
2: Only reverse command is allowed. The inverter only accepts the reverse control command to control the motor
operation; if the forward rotation command is given, the inverter will not run.
LED "000" digit: frequency control direction selection
Function Parameter Specifications
Default: 0000
61