Delta Electronics VFD-EL manual Carrier Frequency Setting

Chapter 4 Parameters

Carrier Frequency Setting

Applications	Purpose	Functions	Related
			Parameters
General application	Low noise	The carrier frequency can be	02.03
		increased when required to reduce
		motor noise.
Keep Running when Frequency Command is Lost
Applications	Purpose	Functions	Related
			Parameters
		When the frequency command is lost	02.06
Air conditioners	For continuous	by system malfunction, the AC motor
	operation	drive can still run. Suitable for
		intelligent air conditioners.
Output Signal during Running
Applications	Purpose	Functions	Related
			Parameters
		Signal available to stop braking (brake	03.00
General application	Provide a signal for	release) when the AC motor drive is
	running status	running. (This signal will disappear
		when the AC motor drive is free-
		running.)
Output Signal in Zero Speed
Applications	Purpose	Functions	Related
			Parameters
	Provide a signal for	When the output frequency is lower	03.00
General application		than the min. output frequency, a
	running status	signal is given for external system or
		control wiring.
Output Signal at Desired Frequency
Applications	Purpose	Functions	Related
			Parameters
		When the output frequency is at the	03.00
	Provide a signal for	desired frequency (by frequency
General application		command), a signal is given for
	running status	external system or control wiring
		(frequency attained).

4-24 Revision August 2008, 2ELE, V1.02