Analog Input Terminals (Aci1, Aci2, Acm); Digital Inputs (Fwd, Rev, Mi1~Mi8, Dcm) - Delta Electronics AC Drive VFD-F Series User Manual

VFD-F Series
Terminal Symbols
+10V
AVI
ACI 1/2
AFM 1
AFM 2
ACM
* Control signal wiring size: 18 AWG (0.75 mm

Analog input terminals (ACI1, ACI2, 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:

Digital inputs (FWD, REV, MI1~MI8, DCM)

When using contacts or switches to control the digital inputs, please use high quality
components to avoid contact bounce.
Terminal Functions
Potentiometer power
source
Analog voltage Input
Analog current Input
Analog frequency
/current meter 1
Analog frequency
/current meter 2
Analog control signal
(common)
wind each wire 3 times or more around the core
+10V 20mA
0 to +10V correspond to Max. operation
frequency
4 to 20mA correspond to Max. operation
frequency
0 to 10V correspond to Max. operation
frequency
4 to 20mA correspond to 2 times of output
current
2
).
ACI1/ACI2
C
ACM
ferrite core
3-10
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Factory Settings