Delta Electronics VFD-G manual Parameter Settings for Applications

Chapter 4 Parameters

4.2 Parameter Settings for Applications

Speed Search

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

4-18 Revision July 2008, EG03, SW V1.06