Parameter Settings For Applications; Speed Search; Dc Brake Before Running; Energy Saving - Delta Electronics AC Motor Drive VFD-G User Manual

Vfd-g series specific ac motor drives for plastic molding and air compressors machinery
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Chapter 4 Parameters|

4.2 Parameter Settings for Applications

Speed Search

Applications
Windmill, winding
machine, fan and all
inertia load

DC Brake before Running

Applications
When e.g. windmills,
fans and pumps rotate
freely by wind or flow
without applying power

Energy Saving

Applications
Punching machines
and precision
machinery
Multi-step Operation
Applications
Conveying machinery
Switching acceleration and deceleration time
Applications
Auto turntable for
conveying machinery
4-18
Purpose
Restart free-
running motor
Purpose
Keep the free-
running motor at
standstill.
Purpose
Energy saving and
less vibrations
Purpose
Cyclic operation by
multi-step speeds.
Purpose
Switching
acceleration and
deceleration times
by external signal
Functions
Before the free-running motor is
completely stopped, it can be restarted
without detecting motor speed. The AC
motor drive will auto search motor
speed and will accelerate when its
speed is the same as the motor speed.
Functions
If the running direction of the free-
running motor is not steady, please
execute DC brake before start-up.
Functions
Energy saving when the AC motor
drive runs at constant speed, yet full
power acceleration and deceleration
For precision machinery it also helps
to lower vibrations.
Functions
To control 15-step speeds and duration
by simple contact signal.
Functions
Switching the multi-step
acceleration/deceleration by external
signals. When an AC motor drive
drives two or more motors, it can reach
high-speed but still start and stop
smoothly.
Related
Parameters
Related
Parameters
Related
Parameters
Related
Parameters
04-00~04-03
05-00~05-14
Related
Parameters
01-09~01-16
04-00~04-03
Revision July 2008, EG03, SW V1.06
02-11
02-12
08-04
08-05
08-06
08-07
08-00
08-01
08-17

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