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Chapter 5 Parameters|VFD-S Series
5-12 Revision August 2006, SE08, SW V2.61
5.2 Parameter Settings for Applications
Speed Search
Applications Purpose Functions
Related
Parameters
Windmill, winding
machine, fan and all
inertia loads
Restart free-
running motor
Before the free-running motor is
completely stopped, it can be restarted
without detection of motor speed. The
AC motor drive will auto search motor
speed and will accelerate when its
speed is the same as the motor speed.
8-06
8-07
DC Braking before Running
Applications Purpose Functions
Related
Parameters
When e.g. windmills,
fans and pumps rotate
freely by wind or flow
without applying power
Keep the free-
running motor at
standstill.
If the running direction of the free-
running motor is not steady, please
execute DC braking before start-up.
8-00
8-01
8-17
Multi-step Operation
Applications Purpose Functions
Related
Parameters
Conveying machinery
Cyclic operation by
multi-step speeds.
To control 7-step speeds and duration
by simple contact signals.
4-04~4-08
5-00~5-06
Switching acceleration and deceleration times
Applications Purpose Functions
Related
Parameters
Auto turntable for
conveying machinery
Switching
acceleration and
deceleration times
by external signal
When an AC motor drive drives two or
more motors, it can reach high-speed
but still start and stop smoothly.
1-09~1-12
4-04~4-08
Operation Command
Applications Purpose Functions
Related
Parameters
General application
Selecting the
source of control
signal
Selection of AC motor drive control by
external terminals, digital keypad or
RS485.
2-01
4-04~4-08