JVL MAC050 User Manual page 39

2.6
2.6.9 Find index position after Homing
The motor offers 2 unique points per revolution called the index points. These points are
found by the internal hall sensors and are always the same.
By enabling Use index after homing feature, an extra precise zero point can be defined.
This feature is intended to be used if the external sensor does not offer the desired pre-
cision. The feature can be used after each of the basic Homing modes including the Me-
chanical Endstop Homing mode.
Enable the Use index after homing feature in the Homing window.
Select "Use index after homing"
using this field.
TT0974-01GB
When the feature is selected, it is very important that the external Homing sensor is ad-
justed to the correct position range with a certain margin to the index points to ensure
the same index is always found during every Homing. If the external sensor is activated
too close to the index points, it can cause the motor to finalize the Homing with reference
to the wrong index point, which in practice will constitute an error of 0.5 motor revolu-
tion. Adjustment of the Homing point must be done regardless of which of the Homing
methods is selected.
The illustration below shows the MacTalk Tests tab which must be used for adjusting the
Homing point.
JVL A/S - User Manual - Integrated Servo Motors MAC050 - 4500
Mechanical Homing
TT0975-03GB
35