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Description for S900 Series Inverter Terminals
Main circuit terminal descriptions
Terminal symbols
Function
L1/R,L2/S,L3/T
Main circuit AC power supply input(For single phase input, connect to L1/L and L2/N)
U,V,W
Connect to motor
(+), (-)
Connect to braking module
For grounding (High voltage wave impact and noise interference shall be avoided.)
Terminal Symbol Description
Terminal symbols
Function of Terminal
Specification
RA-RC
Multifunctional reference signal output
contactor
See Description 3-05 for RELAY CONTACTOR
RB-RC
Multifunctional reference signal output
contactor
MI1-DCM
Fwd run/ Stop
See Description 4-04~4-08
MI2-DCM
Rev run/ Stop
MI3-DCM
Multifunctional input option 1
MI4-DCM
Multifunctional input option 2
MI5-DCM
Alarm reset
MO1-MCM
Multifunctional output terminal
See description of 3-09 (Open collector output)
+10V-ACM
Power supply for speed setting
Speed reference power supply (+10V)
AVI/ ACI -ACM
Analog voltage frequency reference
(0~+10V/4~20mA) Max output frequency
AFM-ACM
Analog frequency/ current meter
0~ +10VDC, Max +11V/output frequency
RS485 serial
communication
Serial connected communications port
RS485 Serial connected communications
connector
+24V-DCM
Assisted control power supply
DC 20V-26V (20mA Max)
Please use Shielded Twisted Pair to insulate the control signal wire.
Note: RS485 may damage the terminal of connector side. So the terminal configuration has to be confirmed before
connection. The used signal wire can be cut if necessarily.