Motor Shaft Fixing Control - Toshiba TOSVERT VF-S11 Instruction Manual

6.7.2

Motor shaft fixing control

• Function
This function is used to prevent the motor from running unexpectedly because its shaft is not restrained
or to preheat the motor.
[Parameter setting]
Title
If the motor shaft fixing control
will be applied to the motor to continue DC braking even after the completion of ordinary DC braking. To stop
motor shaft fixing control, turn off the standby command (ST signal).
Output frequency [Hz]
DC injection braking start frequency
Output current [A]
Operation signal (F-CC)
Operation standby signal (ST-CC)
Note1: About the same motor shaft fixing control can be exercised by entering a DC braking command from external
contacts.
Note2: If a power failure occurs during motor shaft fixing control and the motor starts to coast, motor shaft
fixing control will be canceled.
Also, if the inverter trips during motor shaft fixing control and is restored to working order by the retry
function, motor shaft fixing control will be canceled.
Note 3: During shaft fixing control, the carrier frequency is 4kHz or less irrespective of the setting of
parameter f300 (PWM carrier frequency).
: Motor shaft fixing control
Function
Motor shaft fixing control
is set to
Set frequency
0
0
Adjustment range
0: Disabled, 1: Enabled
, half the braking force set with
F-27
E6581158
Default setting
0
(DC braking rate)
LED display
" " is displayed.
" " is displayed.
Time [s]
2
ON
OFF
ON
OFF
6