6.1 Parameter
B6-40
ME0384-4A
[Home preset value (Parameter No.139)]
No. Name Unit Input range
Default initial value setting
139 Home preset value mm -9,999.99 to 9,999.99 In accordance with actuator
When using an actuator of absolute specification, set "homing offset value+ this parameter set
value" within the range of "0 to ball screw lead length". (Z-phase near the mechanical end must
be registered as reference)
The allowable values are multiples of ± ball screw lead length including 0.00.
(0.00 if the homing offset value is within the range of 0 to ball screw lead length)
Also, if a value other than 0.00 is set to this parameter, the home return complete position will
not be 0.00, but the home position + this parameter position.
For the incremental specification actuator, be sure to set to 0.00.
Caution
● If the homing offset value and this parameter setting do not meet the above conditions,
the home position may be shifted by the multiple of the ball screw lead length when
restarted after home return.
<Configuration example 1>
For ball screw lead length of 4 mm and homing offset of 10 mm, set this parameter to -8 mm.
Ball screw lead length (4mm)
Ball screw lead length (4mm)
Homing offset value (10mm)
Home preset value (-8 mm)
[-8mm]
Ball screw lead length (4mm)
AC servo motor specification only
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