Delta Electronics 115V Series, 230V Series, 460V Series manual ParametersVFD-S Series

Chapter 5 ParametersVFD-S Series

Over-torque Setting

Applications	Purpose	Functions	Related
			Parameters
		The over-torque detection level can be	6-03~6-05
	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	1-07
Pump and fan	speed within	upper/lower limit, gain or bias from	1-08
		external signal, it can be set
	upper/lower limit
		individually in AC motor drive.
Skip Frequency Setting
Applications	Purpose	Functions	Related
			Parameters
	To prevent	The AC motor drive cannot run at	8-08~8-13
Pumps and fans		constant speed in the skip frequency
	machine vibrations	range. Three skip frequency ranges
		can be set.
Carrier Frequency Setting
Applications	Purpose	Functions	Related
			Parameters
General application	Low noise	The carrier frequency can be	2-03
		increased when required to reduce
		motor noise.
Keep Running when Frequency Command is Lost
Applications	Purpose	Functions	Related
			Parameters
	For continuous	When the frequency command is lost	2-05
Air conditioners		by system malfunction, the AC motor
	operation	drive can still run. Suitable for
		intelligent air conditioners.

5-14 Revision August 2006, SE08, SW V2.61