Bumpless Operation - Toshiba VF-PS1 Instruction Manual

6.14

Bumpless operation

 : Bumpless operation selection
• Function
When switching from Remote mode to Local mode using
operating frequency at Remote mode are Local mode.
By contraries, when switching from Local mode to Remote mode, they are not moved to Remote mode.
[Parameter setting]
Title
Bumpless operation selection

To changeover the Local mode/Remote mode by
⇒ For details, refer to Section 5.22.
Example) Remote mode ( (Terminal board))
Remote mode
Key
ON
EASY
OFF
Output
frequency
ON
F-CC
OFF
ON
Internal
OFF
operation
Local mode
ON
Key
EASY
OFF
Output
frequency
ON
F-CC
OFF
ON
Internal
OFF
operation
To prevent from moving the setting frequency and start/stop status of Remote mode to Local mode, the  is set
to ""(Disabled). In this case,
Note 1: The frequency commend value in Local mode and the setting of the parameter (reverse/forward run
switching in Local mode) are rewritten as a result of bumpless operation, but they are rewritten just temporarily
and they are reset to their original settings if the power is turned off.
Note 2: When the operation mode is switched from Remote mode to Local mode by bumpless operation during
deceleration when the F terminal is not ON, the frequency command is not switched and the motor keeps
decelerating.
Function
key action, please be sure to set the parameter  to .
EASY
Local mode
Remote mode
key is effective only while stopping.
EASY
F-23
key, the status of start and stop, and
EASY
Adjustment range
: Disabled
: Enabled
Setting frequency and start/stop
status are moved to Local mode
when switching from Remote
mode to Local mode.
Motor runs continuously like an
example.
When switching from Local
mode to Remote mode, setting
Set frequency
at Remote
frequency and start/stop status
mode
are determined by Remote
mode status.
The example shows the motor
runs continuously because the
Remote mode is "run" status.
E6581386
Default setting

6