Analog Input Terminals (Avi, Aci, Aui, Acm); Digital Inputs (Fwd, Rev, Mi1~Mi6, Dcm); Digital Outputs (Mo1, Mo2, Mcm) - Delta VFD-VE User Manual

Terminal
Terminal Function
Symbol
Analog output meter
AFM
Analog control signal
ACM
(common)
*Control signal wiring size: 18 AWG (0.75 mm

Analog input terminals (AVI, ACI, AUI, 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 and ferrite core as indicated in the following diagrams:
wind each wires 3 times or more around the core

Digital inputs (FWD, REV, 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, MO2, 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.
Impedance:
Output current
Resolution:
Range:
AFM
Function:
0~20mA
Switch:
ACM
Common for AVI, ACI, AUI, AFM
2
) with shielded wire.
C
ferrite core
Chapter 2 Installation and Wiring 
Factory Settings (SINK)
ON: Connect to DCM
18.5kΩ (voltage output)
1.1mΩ (current output)
20mA max
max. frequency corresponds to
0-10V
0 ~ 10V/0 ~ 20mA
Pr.03-18
AFM switch, factory setting is 0-
10V
AVI/ACI/AUI
ACM
2-15