Delta Electronics VFD-VL manual 03-12, 03-13, 03-14, 03-15

Chapter 4 Parameters

Parameters 03-03 to 03-11 are used when the source of frequency command is the analog voltage/current signal.

03-12	Analog Input Delay Time (AUI1)				Unit: 0.01
Control	VF	VFPG	SVC	FOCPG TQCPG FOCPM	Factory setting: 0.01
mode
03-13	Analog Input Delay Time (ACI)				Unit: 0.01
					Factory setting: 0.01
Control	VF	VFPG	SVC	FOCPG TQCPG FOCPM
mode
03-14	Analog Input Delay Time (AUI2)				Unit: 0.01
Control	VF	VFPG	SVC	FOCPG TQCPG FOCPM	Factory setting: 0.01
mode
	Settings		0.00 to 2.00 sec

Interferences commonly exist with analog signals, such as those entering AUI, ACI and AUI2. These interferences constantly affect the stability of analog control and using the Input Noise Filter will create a more stable system.

If Pr. 03-14 is large, the control will be stable, yet the response to the input will be slow. If Pr. 03-14 is small, the control may be unstable, yet the response to the input will fast.

03-15	Loss of the ACI Signal
Control	VF	VFPG SVC FOCPG TQCPG FOCPM	Factory setting: 0
mode

Settings 0 Disable

1Continue operation at the last frequency

2Decelerate to stop

3Stop immediately and display E.F.

This parameter determines the behavior when ACI (4-20mA) is lost.

03-16Reserved

03-17Analog Output Selection 1

03-20Analog Output Selection 2

Factory Setting: 0

Settings 0-20

4-54 Revision Nov. 2008, VLE1, SW V1.03