Delta Electronics VFD-EL manual Auto Restart after Fault

Chapter 4 Parameters

Auto Restart after Fault

Applications	Purpose	Functions	Related
			Parameters
Air conditioners,	For continuous and	The AC motor drive can be	08.15~08.16
	reliable operation	restarted/reset automatically up to 10
remote pumps	without operator
		times after a fault occurs.
	intervention
Emergency Stop by DC Brake
Applications	Purpose	Functions	Related
			Parameters
		AC motor drive can use DC brake for	08.00
High-speed rotors	Emergency stop	emergency stop when quick stop is	08.02
	without brake	needed without brake resistor. When	08.03
	resistor	used often, take motor cooling into
		consideration.
Over-torque Setting
Applications	Purpose	Functions	Related
			Parameters
		The over-torque detection level can be	06.00~06.05
	To protect	set. Once OC stall, OV stall and over-
		torque occurs, the output frequency
Pumps, fans and	machines and to
		will be adjusted automatically. It is
extruders	have continuous/
		suitable for machines like fans and
	reliable operation
		pumps that require continuous
		operation.
Upper/Lower Limit Frequency
Applications	Purpose	Functions	Related
			Parameters
	Control the motor	When user cannot provide	01.07
		upper/lower limit, gain or bias from	01.08
Pump and fan	speed within
	upper/lower limit	external signal, it can be set
		individually in AC motor drive.
Skip Frequency Setting
Applications	Purpose	Functions	Related
			Parameters
	To prevent	The AC motor drive cannot run at	08.09~08.14
Pumps and fans		constant speed in the skip frequency
	machine vibrations	range. Three skip frequency ranges
		can be set.

Revision August 2008, 2ELE, V1.02 4-23