Delta Electronics VFD-G manual Parameters

Chapter 4 Parameters

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 a 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	06-03~06-05
	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
Pump and fan		upper/lower limit, gain or bias from	01-08
	speed within
	upper/lower limit	external signal, it can be set
		individually in AC motor drive.
Skip Frequency Setting
Applications	Purpose	Functions	Related
			Parameters
		The AC motor drive cannot run at	08-11~08-16
Pumps and fans	To prevent	constant speed in the skip frequency
		range. Three skip frequency ranges
	machine vibrations
		can be set. It is used to smooth
		vibration at certain frequencies.
Carrier Frequency Setting
Applications	Purpose	Functions	Related
			Parameters
		The carrier frequency can be	02-03
General application	Low noise	increased when required to reduce
		motor noise.

4-20 Revision July 2008, EG03, SW V1.06