
B-65150E/04 4. SERVO FUNCTION DETAILS
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<9> Set a distance to be retraced at abnormal-load detection.
If the retrace amount parameter is 0, the motor stops at the point
where an abnormal load was detected. To retract the tool from the
location of collision quickly, set the retrace distance parameter.
1996
−
Retrace distance
2103 1103
[Increment system] Detection unit
[Setting value] Approximately 3 mm
<10> Run the machine with the alarm level set up.
If the abnormal-load detection function works incorrectly,
increase the alarm level.
<11> Nullify the estimated load torque output from the check board.
Now adjustment is completed.
Conceptual diagram illustrating retrace
Collision
Abnormal load detected
The tool go beyond slightly,
and returns to the location
where the abnormal load was
detected.
Retrace distance
The tool is retracted from
the location where the
abnormal load was
detected to avoid
mechanical contact at the
ultimate stop position.
No abnormal load
detected
Abnormal load detected,
but no retrace is
performed.
Abnormal load detected,
and retrace is performed.
The tool plunges in at full torque.
NOTE
When the tool is moving faster or slower than the
velocity listed below, the tool will not go back even if
this parameter is set. It stops at the location where an
abnormal load was detected.
Let the value set in the retrace distance parameter be
A:
A/8 × detection unit × 1000 [mm/min] or lower:
Stop at the location where an abnormal load was
detected.
A/8 × detection unit × 1000 [mm/min] or higher:
Stop after going back.