Adjusting The Reference Point - Sony MJ700 Bedienungsanleitung

3-4-5. Adjusting the reference point

In the MJ500, MJ600, and MJ700, in order for the interpolator
to output reference point signals in synchronization with the
A/B phase output, it is necessary to set the positional
relationship between the encoder and the reference point gate
or the sensor or the switch installed at the selected position.
This adjustment and setting is made so that reference point
signals can be output at the same SIN-COS signal reference
point in case the reference point position is slightly displaced
due to the temperature and electrical characteristics.
When the positional relationship between the
encoder SIN-COS signal and reference point gate
is already known:
Set MODE switches 1 and 2 (reference point positions 1 and
2 switches) while referring to "3-4-1. Principles of reference
point output."
When the positional relationship between the
encoder SIN-COS signal and reference point gate
is not already known:
When the reference point position has been changed after
installing an encoder or reference point sensor, be sure to
always use the procedure on the next page to make
adjustments and settings.
20 (E)
1. Move the encoder in the direction opposite from the
reference point reading direction, and then move the
encoder past the reference point. Check that the ABS
lamp is off at this time.
2. Set MODE switch 3 (reference point adjustment mode
switch) to on. The system changes to reference point
setting mode, and all POS. lamps turn off.
3. Move the encoder past the reference point. One of the
POS. lamps turns on.
4. Set MODE switches 1 and 2 (reference point positions 1
and 2 switches) according to the POS. lamp that is lit.
(See table 1.)
5. Set MODE switch 3 (reference point adjustment mode
switch) to OFF.
Mode setting
POS lamp
1
OFF
ON
OFF
ON
Table 1
. To increase the accuracy in reproducing the synchronized
reference point, be sure that the encoder passes through
the reference point at the same speed when the reference
point was originally set and when detecting the reference
point at the beginning of the work.
2
OFF
OFF
ON
ON