Dc Braking Start Frequency; Dc Braking Time; Dc Braking Force - Sanken SVCO6 Instruction Manual

● Deceleration to stop + Continuous DC braking
Similar to the case of F1111=1, this method is used to reduce the output frequency to the time point below
deceleration DC braking start frequency (F1118); DC braking method is selected by deceleration DC braking
start method selection (F1117). If you want to know circumstance of this function, please read explanation of
deceleration DC braking start method selection (F1117).
F1112

DC braking start frequency

A function for setting DC braking start frequency during deceleration braking.
Code No. Function Name
F1112 DC braking start frequency
● If F1112=2, the output frequency drops as the stop signal is input, DC braking starts at the time point where the
value is below the frequency set by F1112.
● When F1112=2, the starting frequency (F1103) is inactive during braking. When output frequency drops to the DC
braking start frequency (F1112), the DC braking start.
● After the operation signal has been input, if the set frequency is below the operation start frequency (F1104) or DC
braking start frequency (F1112), the following actions will be executed according to the magnitude relation between
operation start frequency and DC braking start frequency.
① Operation start frequency ≥ DC braking start frequency.
If the set frequency is lower than the DC braking start frequency, even if it is higher than DC braking start
frequency, the output frequency will be decreased to DC braking start frequency, and then DC braking starts.
② Operation start frequency ＜ DC braking start frequency.
• Even if the set frequency is lower than DC braking start frequency, as long as it is greater than the operation start
frequency, the operation will continue.
• When the output frequency is higher than DC braking start frequency, even if the set frequency is lower than the
operation start frequency, like in ①, the output frequency will be decreased to DC braking start frequency, and
then DC braking starts.
• When the output frequency is lower than DC braking start frequency, if the set frequency is lower than the
operation start frequency, then DC braking will start immediately.
Note1 : This function (F1112) enables during setting only F1111=2. If F1111=4,
F1118.
Note2 : If the inverter set speed control mode (F1001=2 or 3),
F1113

DC braking time

F1114

DC braking force

A function for setting DC braking action time and braking force during V/f control mode (F1001=1 or 40).
Code No. Function Name
F1113 DC braking time
F1114 DC braking force
● For acceleration DC braking action at starting means that the DC braking starts after the operation signal has met the
starting conditions, and then the motor will be started by starting frequency. In this case, the action time and braking
force are the setting values of F1113 and F1114. See also F1102 for DC braking action at starting.
● During DC braking, if the
● During DC braking at starting, if operation signal is OFF, then DC braking is stopped.
● During DC braking at stopping, if operation signal is input, then the inverter will remove by ordinary operation.
Data Content
0.05-20Hz
DC braking start frequency
Data Content
0.1 -10 sec.
1-10
key is pressed again, the DC braking will be released.
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7-3 Description of Functions
Setting Factory
Resolution
0.01Hz
DC braking start frequency
can set by F1112.
Setting Factory
Resolution
0.1 s
1
Presets
0.5
can set by
Presets
2
5