Delta Electronics 115V Series, 230V Series, 460V Series manual Avi/Aci

Chapter 2 Installation and WiringVFD-S Series

Terminal	Terminal Function		Factory Settings (NPN mode)
Symbol			ON: Connect to GND
		0~+10V/4-20mA corresponds to 0-max.
		operation frequency (Pr.01-00)
		PID feedback signal
		AVI input impedance: 100kohm
		ACI input impedance: 250kohm
		AVI	+10V	AVI circuit
		ACI
		J1
	Analog voltage Input		AVI
	(AVI/ACI)
AVI
			GND	Internal Circuit
		AVI		ACI circuit
		ACI	ACI
		J1

GND

Internal Circuit

Control signal wiring size: 18 AWG (0.75 mm2) with shielded wire.

Analog input terminals (AVI, GND)

Analog input signals are easily affected by external noise. Use shielded wiring and keep it as short as possible (<20m) with proper grounding. If the noise is inductive, connecting the shield to terminal GND can bring improvement.

If the analog input signals are affected by noise from the AC motor drive, please connect a capacitor (0.1 μ F and above) and ferrite core as indicated in the following diagrams:

AVI

C

GND

ferrite core

wind each wires 3 times or more around the core Digital inputs (M0~M5, GND)

When using contacts or switches to control the digital inputs, please use high quality components to avoid contact bounce.

2-26 Revision August 2006, SE08, SW V2.61