Yaskawa VS-626 MC5 - Manual (Page 116)

6.1 Common Settings
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J 3-wire Sequence (Forward/Reverse Run Commands): “0”
D When a value of “0” is set for any one of the multi-function inputs (H1-01 through H1-06), 3-wire se-
quence control is used and the multi-function input terminal for which “0” was set becomes the for-
ward/reverse run command terminal.
D When the Unit is initialized for 3-wire sequence control with A1-03 , multi-function input 3 (terminal
5) becomes the input terminal for the forward/reverse run command.
Stop switch (NC) Run switch (NO)
Run command
(Operates when the run switch is closed.)
1
2
Stop command
(Stops when the stop switch is open.)
Forward/reverse command
(Multi-function input)
11
Sequential input common
5
Fig
6.5 3-wire Sequence Wiring Example
50 ms min.
Run command
Stop command
Forward/reverse run
command
Motor speed
ON/OFF (Either is possible.)
OFF (Stop)
OFF (Forward) ON (Reverse)
Stop Forward Reverse Stop Forward
Fig 6.6 Timing Chart for 3-wire Sequence
J Multi-step Speed References 1 through 3 and JOG Reference: “3” to “6”
D Eight frequency references and one jog frequency reference can be used.
D Set the multi-step speed references 1, 2, and 3 and the JOG reference for the multi-function inputs, and
change the status of these inputs to switch between the 9 frequency references.
Terminal Constant Setting Function
5 H1-03 3
Multi-step speed reference 1 (Also used for master-speed/auxiliary-speed
switching when an auxiliary reference is set for the multi-function analog
input in H3-05.)
6 H1-04 4 Multi-step speed reference 2
7 HI-05 5 Multi-step speed reference 3
8 H1-06 6
JOG reference (This setting has higher priority than the multi-step speed
reference.)
6