Run Command
6
-
9
Performing Operations Using a 3-wire Sequence
When any parameter from H1-01 to H1-05 (multi-function contact input terminals S3 to S7) is set to 0, termi-
nals S1 and S2 are used for a 3-wire sequence and the multi-function input terminal that has been set functions
as a forward/reverse run command terminal.
When the Inverter is initialized for 3-wire sequence control with A1-03, multi-function input 3 becomes the
input terminal for the forward/reverse run command.
Fig 6.10 3-wire Sequence Wiring Example
Fig 6.11 Three-wire Sequence Time Chart
Use a sequence that turns ON terminal S1 for 50 ms or longer for the run command. This will make the run
command self-holding in the Inverter.
Stop switch
(NC contact)
Operation switch
(NO contact)
Run command (operates when ON)
Stop command (stopped when ON)
Forward/reverse command (multi-function input)
Sequence input common
50 ms min.
Run command
Forward/reverse
command
Motor speed
Can be either ON or OFF
OFF
(stopped)
OFF (forward)
ON (reverse)
Stop
Forward
Reverse
Stop
Forward
Stop command
INFO
