Fuji Electric Faldic-a Series, User Manual

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MHT258a (Engl.) 5-44
・ Origin return pattern
Four kinds of origin return patterns are selectable from the basic para. 71 setting.
Origin return pattern Comparison to other patterns
Pattern 1 When the machine stop position is in the opposite direction to the origin return direction, the time
required for origin return action can be shortened.
Pattern 2 When the machine stop position is in the origin return direction viewed from the origin LS, the time
required for origin return action can be shortened. (where it is near the OT signal in the return direction)
Pattern 3 When the machine stop position is just behind the origin return direction viewed from the origin LS, the
time required for origin return action can be shortened. The origin return reversing quantity can be
changed by basic para.
Pattern 4 When the machine stop position is in the opposite direction to the origin return direction, the detecting
speed of origin LS is always constant even if the origin return speed is changed.
・ Origin return end (22)
This signal is turned on when the origin return action has been normally completed. After this, this signal is held on when the current
feedback position is within the origin detection range (basic para. 66) viewed from the origin return complete position (basic para. 79).
If the origin detection range is widened to the maximum, this signal is always on after the origin return completion.
Basic parameter 66
Para. Name Setting range Initial value Change
66 Origin detection zone 1 to 79,999,999 (in increments of 1)
[x unit q
’ ty]
100 Always
Note : The origin is the position where the machine has stopped after completed the origin return action, or has executed the position preset.
It is not necessary the “ origin ” (where the current position is at zero position).
Origin detection zone
Current position
Origin return end
OFF ON
Origin