Delta Electronics VFD-M Series User Manual page 28

Terminal
Symbol
Multi-function Output Terminal
MO1
(Photocoupler)
Multi-function Output Common
MCM
(Photocoupler)
Note: Use twisted-shielded, twisted-pair or shielded-lead wires for the control signal wiring. It is
recommended to run all signal wiring in a separate steel conduit. The shield wire should only be
connected at the drive. Do not connect shield wire on both ends.
Analog inputs (AVI, ACI)
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
μ
capacitor (0.1
Digital inputs (M0~M5)
When using contacts or switches to control the digital inputs, please use high quality
components to avoid contact bounce.
Digital outputs (MO1)
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.
Revision May 2008, ME14, SW V3.04
Terminal Function
F and above) and ferrite core as indicated in the following diagrams:
wind each wires 3 times or more around the core
Chapter 2 Installation and Wiring|
Factory Settings (NPN mode)
Maximum: 48Vdc, 50mA
Refer to P45 for programming.
MO1-DCM
Internal Circuit
Common for Multi-function Outputs
AVI/ACI
C
GND
ferrite core
Max: 48Vdc/50mA
MO1
MCM
2-11