Delta Electronics VFD-EL 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	08.04~08.08
machine, fan and all	running motor	completely stopped, it can be restarted
inertia loads		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.
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
fans, pumps and	less vibrations	drive runs at constant speed, yet full
precision 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	04.05~04.08
	multi-step speeds.	by simple contact signals.	05.00~05.14
Switching acceleration and deceleration times
Applications	Purpose	Functions	Related
			Parameters
	Switching	When an AC motor drive drives two or	01.09~01.12
Auto turntable for	acceleration and		04.05~04.08
		more motors, it can reach high-speed
conveying machinery	deceleration times	but still start and stop smoothly.
	by external signal

Revision August 2008, 2ELE, V1.02 4-21