Delta VFD-E Series User Manual

Chapter 2 Installation & Wiring
2-21
Terminal
Symbol
Terminal Function
Factory Settings (NPN mode)
ON: Connect to DCM
ACM
ACI
internal circuit
ACI circuit
Set-up: Pr.04.15 ~ Pr.04.18
AFM
Analog output meter
A
FM
A
CM
0~10V
Max. 2mA
potentiometer
ACM circuit
internal circuit
0 to 10V, 2mA
Impedance: 100kΩ
Output current 2mA max
Resolution: 8 bits
Range: 0 ~ 10VDC
Function: Pr.03.03 to Pr.03.04
NOTE: Control signal wiring size: 18 AWG (0.75 mm
2
) with shielded wire.
Analog inputs (AVI, ACI, ACM)

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 ACM can bring improvement.

If the analog input signals are affected by noise from the AC motor drive, please connect
a capacitor (0.1

F and above) and ferrite core as indicated in the following diagrams:
C
A
VI/ACI
ACM
ferrite core
wind each wires 3 times or more around the core
Digital inputs (MI1~MI6, DCM)

When using contacts or switches to control the digital inputs, please use high quality
components to avoid contact bounce.
Digital outputs (MO1, MCM)

Make sure to connect the digital outputs to the right polarity, see wiring diagrams.

When connecting a relay to the digital outputs, connect a surge absorber or fly-back diode
across the coil and check the polarity.

Delta VFD-E Series Specifications

General

Brand	Delta
Model	VFD-E Series
Category	Media Converter
Language	English