Parameter Group
-267-
1: Flying start (asynchronous motor)
This mode is applicable only to asynchronous motors. In some scenarios, the motor rotates before
the AC drive is started. With this setting, the AC drive can automatically track the motor speed and
direction to start the rotating motor smoothly without impact. For example, when transient power
failure occurs, the AC drive restarts but the motor is still rotating due to inertia. In this case, the AC
drive must detect the actual speed of the motor first to control the asynchronous motor again.
Otherwise, overcurrent or overvoltage can occur on the AC drive during start, which may damage the
power transistor of the AC drive.
2: Pre-excitation start (asynchronous motor)
This mode applies only to asynchronous motors in SVC mode. Performing pre-excitation on the motor
before start improves the responsiveness of the motor and reduces the starting current. The startup
timing is the same as the DC braking restart timing.
F6-01
Speed tracking mode
Address:
62977
Min.:
0
Unit:
-
Max.:
3
Data type: UInt16
Default:
0
Change:
At stop
Value Range:
0: From stop frequency
1: From 50 Hz
2: From the maximum frequency
3: Fast flying start
Description
This parameter defines the starting frequency for speed tracking upon flying start.
F6-02
Speed of speed tracking
Address:
62978
Min.:
1
Unit:
-
Max.: 100 Data type: UInt16
Default:
20
Change:
At once
Value Range:
1 to 100
Description
This parameter defines the speed coefficient for speed tracking. A greater value indicates faster
speed. It is valid only for flying start mode 0/1/2. The default value is recommended.
F6-03
Startup frequency
Address:
62979
Min.:
0.00
Unit:
Hz
Max.: 10.00 Data type: UInt16
Default:
0.00
Change:
At once
Value Range:
0.00 Hz to 10.00 Hz
Description
This parameter defines the startup frequency for direct start of the AC drive. When the startup
frequency is higher than the frequency reference, the AC drive will not start but stay standby.
F6-04
Startup frequency hold time
Address:
62980
To Next Page
Loading...
