2 detail explanation of parameters – IAI America PCON-CF User Manual
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8. Parameter Settings
8.2 Detail Explanation of Parameters
If a parameter has been changed, always restart the controller using a software reset command or by
reconnecting the power.
8.2.1
Parameters Relating to the Actuator Stroke Range
z Soft limit (No.3/4 LIMM/LIML)
Set the soft limit in the positive direction in parameter No. 3, and that in the negative direction in parameter No. 4.
The factory setting for the soft limits conforms to the effective actuator length. Change the settings, as necessary,
to prevent crash with an obstacle or when the actuator must be stroked slightly beyond its effective length.
A wrong soft limit setting will cause the actuator to crash into the mechanical end, so exercise due caution.
The minimum setting unit is “0.01 [mm].”
(Note) To change a soft limit, set a value corresponding to 0.3 mm outside of the effective range.
Example) Set the effective range to between 0 mm and 80 mm
Parameter No. 3 (positive side) 80.3
Parameter No. 4 (negative side) –0.3
z Software limit margin (No. 88 SWLM)
If the actuator exceeds the range defined by the soft limits, a “soft limit over error” will occur.
By setting parameter No. 88, you can suppress detection of this error for the distance corresponding to the value
set in parameter No. 88 from the soft limits.
The minimum setting range is 0.01 mm.
Soft limits set in the controller
Approx.
0.3 mm
Effective range
Allowable jogging/inching range after home return
8 0
Approx. 0.1 mm
Approx. 0.1 mm
0
Approx.
0.3 mm
Error
detection zone
Soft limit
Software
limit margin
Stroke
Soft limit
Software
limit margin
Error
detection zone