Delta Electronics AC Motor Drive VFD-G - Manual (Page 69)

Chapter 4 Parameters|
4-18 Revision July 2008, EG03, SW V1.06
4.2 Parameter Settings for Applications
Speed Search
Applications Purpose Functions
Related
Parameters
Windmill, winding
machine, fan and all
inertia load Restart free-
running motor 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. 02-11
02-12
08-04
08-05
08-06
08-07
DC Brake 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 brake before start-up. 08-00
08-01
Energy Saving
Applications Purpose Functions
Related
Parameters
Punching machines
and precision
machinery Energy saving and
less vibrations 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. 08-17
Multi-step Operation
Applications Purpose Functions
Related
Parameters
Conveying machinery
Cyclic operation by
multi-step speeds. To control 15-step speeds and duration
by simple contact signal. 04-00~04-03
05-00~05-14
Switching acceleration and deceleration time
Applications Purpose Functions
Related
Parameters
Auto turntable for
conveying machinery
Switching
acceleration and
deceleration times
by external signal
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. 01-09~01-16
04-00~04-03