Sanken S06-4A005-B Instruction Manual page 83

Short time power failure (momentary failure)
F1108
Operation
panel
Do not
0：
No restart
restart
Restart Restart 1 ※
1：
Restart 1
Restart ※
2：
The restart marked with
● When "F1108=2" is selected, the Momentary Power Failure Compensation function is enabled to prolong the operation time of
the inverter even in the event of a power failure. The Momentary Power Failure Compensation function detects a drop in the
input voltage, and reduces the output frequency and voltage of the inverter before any alarm trip, and uses the energy regenerated
from the motor to keep it operating for longer.
Note 1: The Momentary Power Failure Compensation function works when F1001: the motor control mode is V/f control or
speed control (F1001=1, 2, 3).
Note 2: While the Momentary Power Failure Compensation function is working, the output frequency of the inverter is reduced.
Use this function for loads, of which the frequency reduction is allowable.
Note 3: Restart after momentary power failure for F1108 = 2 has the same "restart" effect as for F1108 = 1.
Note 4: In the PID control, sometimes the Momentary Power Failure Compensation function can not be fully functional as a
result of the effects of PID gain setting value and the system response speed.
Note 5: Output voltage AVR function is needed to execute the Momentary Power Failure Compensation function in V / f control
mode. Therefore, to use this function, please set the reference voltage to F1005≠0
F1109 Direction of rotation of motor
This function is used to restrict the rotation of the motor to a fixed direction for safety reasons etc.
CodeNo Function Name
F1109 Direction of rotation of motor
Note 1: The terms "forward run" and "reverse run" and the actual motor shaft rotation direction changes depending on the motor
structure and inverter connection method. For the inverter, when the "forward run" or "reverse run" command is given,
the user should confirm it directly during test run.
Note 2：The rotation direction of【DRIVE】key on the operation panel is determined by F1110.
Direction of rotation of motor
F1110
(set from operation panel)
Set the rotation direction at the【DRIVE】key on operation panel.
Code No. Function Name
F1110 Motor rotation direction
（Operation panel 设定）
F1111 Braking method
Note: Use F1109 to fix the motor rotation direction.
Code No. Function Name
F1111 Braking method
● Deceleration to stop
A normal stop method for reducing output frequency according to the settings of acceleration/deceleration curve (F1010) and the
deceleration time (F1016 - F1019).
● Deceleration to stop + DC braking
Similar to the case of F1111 = 1, this method is used to reduce the output frequency to the time point below DC braking start
External terminals
Operation signal
No restart
Restart 1 ※
Restart 1
※
※ 1 means that t he inverter starts in the flying start mode after a momentary power failure.
1： Forward and reverse run
Forward run only
2：
Reverse run only
3：
1： Deceleration to stop
Deceleration to stop + DC braking
2：
Free run stop
3：
Long power failure (Re-start of the inverter)
Operation
panel
No restart Restart
No restart Restart
No restart Restart
Data Content
Data Content
Forward run
1：
2： Reverse run
Data Content
- 82 -
External terminals
Operation signal No operation signal
Restart No restart
Restart No restart
Restart No restart
Setting Resolution
1
Setting Resolution
1
Setting Resolution
1
Factory Presets
1
Factory Presets
1
Factory Presets
1