IAI America MSCON - Manual (Page 285)

Chapter 7 Parameter
277
[83] Home preset value (Parameter No.139)
No. Name Symbol Unit Input Range
Default factory
setting
139 Home Preset Value PRST mm
-9999.99 to
9999.99
In accordance
with actuator
For the actuator of absolute specification, set this parameter so that (home return offset + value
of this parameter) is within the range between 0 and the ball screw lead.
The value should be an integer multiple of ± (ball screw lead length) including 0.00.
(If the home return offset is within the range between 0 and ball screw lead length, the value of
this parameter is 0.00.)
When this parameter is set to a value other than 0.00, the home return complete position is
determined by calculating (home position + position set by this parameter)
For the actuator of incremental specification, always set this parameter to 0.00.
With ball screw lead length 4mm and home return offset level 10mm, set this parameter to
-8mm.
Home Return Offset Level (10mm)
Home Position Preset Value (-8mm)
Ball Screw Lead Length (4mm) Ball Screw Lead Length (4mm)
Home Return
Completion Position
[-8mm]
Home Position
[0mm]
Ball Screw Lead Length (4mm)
[84] Overload level ratio (Parameter No. 143)
No. Name Symbol Unit Input Range
Default factory
setting
143 Overload Level Ratio OLWL % 50 to 100 100
With the motor temperature of when an operation is held at the rating being set as 100%, the
overload warning (message level) is output when the motor temperature exceeds the rate set in
this parameter.
The judgment would not be made if the value is set to 100%.
Caution: If the above condition is not satisfied, the home position at restart after home
return may shift by an integer multiple of the ball screw lead.