
12. DETECTORS FOR THE SPINDLE
B–65162E/03
548
NOTE
– Use the BZ sensor at temperatures not exceeding 80°C.
– The BZ sensor is a precision device. It must be handled with care. In particular, ensure that
no force is applied to the S section.
– The sensor is an electronic device. Provide dust and drip protection on the machine so that
the sensor is not exposed to chips, oil, water, or any other harmful substance.
– When installing a BZ sensor, press it against the machine–side socket and spigot joint ( A in
size). (The machine–side socket and spigot joint is 4.5 mm high.) The gap between the sensor
and detection ring is adjusted beforehand. However, an output signal may not satisfy the
specified value due to a socket and spigot joint error. Check the output signals when mounting
a sensor. If an output signal does not satisfy the specified value, adjust the gap. For information
about the output signal level for gap adjustment, refer to Part II of ”FANUC Built–in AC Spindle
Motor α Series Descriptions (B–65202EN).”
– To mount the BZ sensor, use screws of M4 x 20 mm and M4 x 25 mm.
– Secure the cable at appropriate locations so that, when the cable is pulled, no force is directly
applied to the BZ sensor.
– Make a shielded wire connection.
– To ensure ease of maintenance, install a sensor in a location where the sensor can be replaced
easily.
– The detection ring of a sensor can be exchanged with another sensor provided the sensors are
of the same drawing number.
– A sensor cannot be combined with a detection ring if the detection ring is designed for a drawing
number different from that of the sensor.
– A mating connector (accessory) is provided with the BZ sensor.
(c) Detection ring
Detection ring A Detection ring B