Motor Shaft Fixing Control - Toshiba Tosvert VF-AS1 Instruction Manual

[Priority to DC braking during forward/reverse operation] (Forward/reverse run DC braking priority control
=[Enabled])
Output frequency [Hz]
Set frequency

Reference frequency


Forward run signal (F-CC)
Reverse run signal (R-CC)
(4) During normal forward/reverse run (=)
6
(5) If a reverse run (or forward) command is entered during forward run (or reverse) (=) :
(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

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: 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


=

0
(4)
0
Function
Motor shaft fixing control
Function
Always ON function selection 1
Input terminal function selection 7 (S3)
=
 
(5)
: Not recognized as a stop command, so that the DC
braking is not active.
DC braking when the frequency set with 
decreases below the reference frequency during
deceleration.
Adjustment range
:Disabled, :Enabled
Adjustment range
~
~
F-16
E6581442
: DC braking
 
Time [s]
(6) (7)
ON
OFF
ON
OFF
Default setting

Default setting

