
B-65282EN/05 9.CONNECTION
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9.3.3.17 Spindle Motor Feedback Cable Connection
The connector of the feedback cable connected to the spindle motor
may have the following problems, depending on the wiring in the
motor terminal box (transit box for the built-in motor):
- Variations in low speed become large.
- The alarm lamp indicating a discontinued sensor signal lights
improperly.
- The alarm lamp indicating a missing sensor signal position pulse
lights improperly (for the MZi and BZi sensors).
Give consideration to wiring so that minimum lengths of non-shielded
portions are provided for the connector connecting the cable for SPM
and signals output from the spindle motor. (See the examples below.)