Sanken S06-4A005-B Instruction Manual page 88

F1307 Auto alarm recovery
This function code automatically specifies whether the inverter restarts after the inverter is tripped by protection function due to
overcurrent or overvoltage.
Code No. Function Name
F1307 Auto alarm recovery
● The inverter restarts in the flying start mode. And, the alarm relay does not work when the inverter is restarted.
● If three consecutive trips occur in 10 seconds, the status of 3rd trip alarm will be kept, and the alarm relay works.
● When an alarm for which auto reset is possible occurs during standby and then is released, the reset method depends on the status
at that time.
Standby: Keeps standby.
If operation conditions are established: Setting of starting frequency is inactivated by flying start.
● When an alarm for which auto reset is possible occurs during deceleration caused by the stop signal and then is released, auto
reset is performed in the alarm stop status. But operation is not restarted.
● Auto reset is possible with the following alarms:
F1308 Instability elimination
When the inverter is used to drive a motor, the dead time to protect a switching device from a short circuit may make the current
unstable. If the current becomes unstable, the motor may generate vibration or abnormal noises. In addition, compared with the stable
current, the current value may become greater. The instability elimination function is used to avoid this problem.
Code No. Function Name
F1308 Instability elimination
● The larger the value specified, the greater the compensation. Therefore, increase the value gradually to set the value at which
instability is eliminated.
Operation direction switching in V / f
F1309
control mode
This function specifies the action for operation direction switching in V / f control mode.
Code No. Function Name
Operation direction switching in V /
f control mode
1309
●When F1309 = 0, the start and stop-related functions are executed in accordance with the values of the function codes. The operation
stops according to the function code. Then, the operation immediately starts from the direction opposite to current direction in
accordance with the setting value of the function code. However, when switching the direction of operation, neither the DC braking in
stopped state nor the DC braking at start works.
●When F1309 =1, regardless of function codes related to start or stop, acceleration will be executed consecutively in opposite direction
after deceleration. When switching the direction of operation, the output frequency is continuously variable and the rotation direction
can be switched smoothly.
Note 1: When F1309=0, the stop or start is executed in the mode specified by the function code. Therefore, the output frequency near
0Hz is not continuously variable. And, because DC braking is executed, if the starting frequency or DC braking start
frequency is set with a too big value, motor vibration and overcurrent alarm may occur.
Data Content
No auto reset function
0：
1： Auto reset function
Abnormal main switching device temperature
Overcurrent during acceleration
Overcurrent during constant speed
Overcurrent during deceleration
Short-time overload during acceleration
Short-time overload during constant speed
Short-time overload during deceleration
Overvoltage during acceleration
Overvoltage during constant speed
Overvoltage during deceleration
Data Content
0～20
Data Content
Start from the direction opposite to current
0：
direction after a stop
Continuous operation
1：
- 87 -
Setting Resolution Factory Presets
1 0
Setting Resolution Factory Presets
1 0
Setting Resolution Factory Presets
0
1