14
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/T,V/T2,W/T3
Connect to motor
P/(+),N(-)
Connecting 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 OUTPUT
RB-RC
Multifunctional reference signal output
contactor
MI1-DCM
Rev run/ Stop
See Description 4-05-4-08
MI2-DCM
Fwd run/ Stop
MI3-DCM
Multifunctional input option 1
MI4-DCM
Multifunctional input option 2
MI5-DCM
Abnormal reset
MO1-MCM
Multifunctional output terminal
See description of 3-09 and 3-10 (Open
collector output)
+10V-ACM
Power supply for speed setting
Speed reference power supply (+10V)
AVI/ ACI -ACM
Analog voltage frequency reference
0 to +10V/4~20ma Max output frequency
AFM-ACM
Analog frequency/ current meter
0 to +10V/Max output frequency
RS-485 serial
communication
Serial connected communication
board
RS-485 Serial connected communication
connector
+24V-DCM
Assisted control power supply
DC 20V-26V (20Ma Max)
Pay attention to insulate the control signal wire with insulation tape.
Note: RS-485 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.
