EM12-SP User Manual
5. Description of Function Code
21
The acceleration/deceleration time indicates the time for the frequency inverter to increase from 0 Hz to the
frequency set in
F0-25
，
figure
6-1
is the acceleration/deceleration time diagram.
If this parameter is set to 1, the acceleration/deceleration time is related to the set frequency. If the set frequency
changes frequently, the motor's acceleration/deceleration also changes.
Pay attention for this in on-site application.
F0-26
Base frequency for UP/ DOWN
modification during running
0: Running frequency
1: Setting frequency
0
This parameter is valid only when the frequency source is digital setting.
It is used to set the base frequency to be modified by using keys
▲
and
▼
or the terminal UP/DOWN function.If the
running frequency and setting frequency are different, there will be a large difference between the frequency
inverter's performance during the acceleration/ deceleration process.
F0-27
Binding command source to
frequency source
Unit's digit: Binding keypad command to following frequency
source.
0: No binding
1: Frequency source by digital settin
2: AI1
3: AI2
4: AI3
9: Communication setting
Ten's digit: Binding terminal command to frequency source.
Hundred's digit: Binding communication command to frequency
source.
0000
It is used to bind the three running command sources with the nine frequency sources, facilitating to implement
synchronous switchover.
For details on the frequency sources, see the description of
F0-03
(Main frequency source X selection).Different
running command sources can be bound to the same frequency source.
If a command source has bound to a frequency source, this frequency source set in
，
F0-03~F0-07
no longer takes
effect when this command source is effective.
F0-28
Serial communication protocol 0: Protocol MODBUS-RTU
0
The use of EM12-SP serial port communication protocol MODBUS.
F1 Motor Parameter
F1-00 Motor type selection
0: General asynchronous motor
1: Variable frequency asynchronous motor
0
F1-01 Rated motor power
0.1kW
～
1000.0kW
Model
dependent
F1-02 Rated motor voltage
1V
～
2000V
Model
dependent
F1-03 Rated motor current
0.01A
～
655.35A(Frequency inverter power
≤55kW
)
0.1A
～
6553.5A(Frequency inverter power >55kW)
Model
dependent
F1-04 Rated motor frequency
0.01Hz
～
maximum frequency
Model
dependent
F1-05 Rated motor rotational speed
1rpm
～
65535rpm
Model
dependent
Set the parameters according to the motor nameplate no matter whether V/F control or vector control is adopted.
To achieve better V/F or vector control performance, motor auto-tuning is required. The motor auto-tuning
accuracy depends on the correct setting of motor nameplate parameters.
