Advertisement
Parameter details
During the process of reversing the dead zone state:
Control mode
Open loop vector, V/F
Open loop vector, V/F
Closed loop vector
Note:
This function can be used at the site where the required process is required to be performed at zero speed for a certain time.
The positive and negative dead zone states do not conflict with the zero speed torque hold function, and all start timing at zero frequency.
F07.2x group: DC braking and speed tracking
Code
Name
(Addr.)
F07.20
(0x0714)
Start DC braking current
STOP
F07.21
(0x0715)
Start DC braking time
STOP
Note: This function is valid when F07.00 = 1 [Start mode = DC braking first, then start by starting frequency].
When the running command is valid, if there is no pre-excitation function, it will directly enter the starting DC braking state; if the pre-excitation function is
valid, the pre-excitation is completed and the DC braking state is entered.
Start DC braking current
100.0% corresponds to the rated current of the drive, but the starting DC braking current is limited by the rated current of the motor.
The DC braking current affects the magnetic field strength of the fixed motor shaft. Increasing the current value will increase the amount of heat generated
by the motor. Set the minimum current required to fix the motor shaft.
Start DC braking time:
When the running command is valid, if there is no pre-excitation function, the timing starts; if the pre-excitation function is valid, the timing starts after the
pre-excitation is completed.
Note:
When restarting a motor that is running freely, use the start DC brake to stop the motor before restarting, or use the speed tracking to restart
the motor.
F07.22 ~ F07.24: DC brake at stop
Code
Name
(Addr.)
F07.22
Stop DC brake judgment
(0x0716)
frequency
STOP
F07.23
DC braking current at
(0x0717)
stop
STOP
F07.24
(0x0718)
DC braking time at stop
STOP
Note: DC braking at stop is valid only when F07.10 = 0 [stop mode = deceleration stop].
When there is a stop command and the output frequency is less than F07.22 [stop DC brake judgment frequency], the DC brake state is stopped.
After the stop DC braking is over, it enters the stop state.
When the running command is received during the stop DC braking state, the stop DC braking state is exited and the normal starting control is entered.
DC braking current at stop
100.0% corresponds to the rated current of the drive, but the DC braking current at the stop is limited by the rated current of the motor.
The DC braking current affects the magnetic field strength of the fixed motor shaft. Increasing the current value will increase the amount of heat generated
by the motor. Set the minimum current required to fix the motor shaft.
DC braking time at stop:
Start the stop DC braking state to start timing; exit the stop DC braking state, clear the timing, and enter the re-timer next time.
Code (Addr.)
Name
F07.25
(0x0719)
Speed tracking mode
STOP
AC10 Series Frequency Inverter Technical Manual
Method to realize
Zero speed torque is effective and enters zero speed torque control.
The zero speed torque is invalid, and the output frequency and voltage are all zero.
Zero speed control
Content
V/F SVC
100.0% corresponds to the rated current of the drive
V/F SVC
Set the time to start DC braking maintenance
Content
V/F SVC
Set the threshold for entering DC braking at stop
V/F SVC
100.0% corresponds to the rated current of the drive
V/F SVC
Set the time for stopping DC braking
Content
V/F SVC
Set the mode of tracking tracking
152
Factory setting
(Setting range)
60.0%
(0.0 ~ 150.0%)
0.0s
(0.0 ~ 60.0s)
Factory setting
(Setting range)
1.00Hz
(0.00 ~ 50.00Hz)
60.0%
(0.0 ~ 150.0%)
0.0s
(0.0 ~ 60.0s)
Factory setting
(Setting range)
0000
(0x0000 ~ 0x0111)
Advertisement
