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E6581528
F-16
6
[Priority to DC braking during forward/reverse operation] (Forward/reverse run DC braking priority control
=[Enabled])
Time [s]
Output frequency [Hz]
Forward run signal (F-CC)
ON
OFF
Reference frequency
0
0
Set frequency
~
~
~
~
~
~
~
~
: DC braking
(4) (5) (6)
Reverse run signal (R-CC)
ON
OFF
=
=
(7)
(4) During normal forward/reverse run (=) : Not recognized as a stop command, so that the DC
braking is not active.
(5) If a reverse run (or forward) command is entered during forward run (or reverse) (=) :
DC braking when the frequency set with
decreases below the reference frequency during
deceleration.
(6) If an operation command is entered during DC braking : RUN command has a priority.
(7) If an operation command is changed from ON to OFF during DC braking, DC braking is discontinued to stop the
operation.
6.8.2 Motor shaft fixing control
: Motor shaft fixing control
• Function
This function is used to prevent the motor from running unexpectedly after the motor is stopped because
it’s shaft is not restrained or to preheat the motor.
[Parameter setting]
Title Function Adjustment range Default setting
Motor shaft fixing control :Disabled, :Enabled
If the motor shaft fixing control parameter is set at , DC braking continue at half a braking rate of that set
with to retain the motor after it has come to a full stop by DC braking. To discontinue motor shaft axis fixing
control, cancel the assignment of the input terminal function “ST standby command (6)” to an input terminal. Note,
however, that this function doesn't operate after a DC braking command is entered by control input terminal signal.
When assigning the ST function to the S3 terminal.
Title Function Adjustment range Default setting
Always ON function selection 1 ~
Input terminal function selection 7 (S3) ~