CONTREX M-Traverse - Manual (Page 63)

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The following chart demonstrates how Setpoint and Traverse Length
pairs are selected by the various positions of the Setpoint Select A and
Setpoint Select B discrete inputs.
Setpoint Select A
Open
Setpoint Select A
Closed
Setpoint Select B
Open
Setpoint Select B
Open
Setpoint Select B
Closed
Setpoint 1(CP-01)
Traverse Length 1(CP-02) Setpoint 2 (CP-03)
Traverse Length 2 (CP-04)
Setpoint 3 (CP-05)
Traverse Length 3 (CP-06) Setpoint 4 (CP-07)
Traverse Length 4 (CP-08)
(Closed = shorted to common)