Spindle Motor (Synchronous Motor) Mounting sensor & Starting sequence Specifications Additional Manual Page 3
Additional Manual
Rev
DATE
CONTENTS
Takahashi
Design
TITLE
DNr. A-63639-067E
FANUC
PAGE
３/8
02
2000.11.09
PRM4008#6 added Toyozawa
Synchronous Spindle Motor
Mounting Sensor/Starting sequence
Specification
running out of the center moving of the ring within ±0.03mm for the detector.
(7) Turn off DC supply and make certain the feedback signal correctly output. Refer to “FANUC
BUILT-IN AC SPINDLE MOTOR α series specification description B-65202” as to the way of
confirmation.
(8) After moving the shaft to other place, turn on DC supply and make sure the key of Ring B to move at
the center of the sensor.
Note
NoteNote
Note
1. If the size of inner and outer diameter fits, you could directly couple them without the
sleeve. In this case, fit Ring B by heat hardening with the rotor of motor fixed pouring
DC current, after you couple Ring A by heat hardening and cool it enough.
2. Don’t pour DC current for long time at assembling the sensor because of over heat of
the motor. Shorten the time to assemble as soon as possible.
3. There are several points the rotor stop when DC supply pours the current from U to
V&W. The center of detector and the key of Ring B have only to match at somewhere
one point. For instance of the four poles motor, the rotor stops at two points every 180
degrees. Either is good.
4. Fine adjustment in the radial direction can be done with BZ sensor shifting.
Contents Summary of Spindle Motor (Synchronous Motor) Mounting sensor & Starting sequence Specifications Additional Manual
- Page 1Spindle Motor (Synchronous Motor) Mounting sensor & Starting sequence Specifications 1. Mounting sensor............................................................................................................................２ 1.1 BZ sensor .........................................................
- Page 21. Mounting sensor The current of the synchronous motor is controlled according to the pole position of the magnet built in the motor rotor. There are two method prepared in the spindle control software in order to get the pole position. The first method uses a reference signal of BZ sensor as zero
- Page 3running out of the center moving of the ring within ±0.03mm for the detector. (7) Turn off DC supply and make certain the feedback signal correctly output. Refer to “FANUC BUILT-IN AC SPINDLE MOTOR α series specification description B-65202” as to the way of confirmation. (8) After moving the shaft
- Page 42. Starting sequence It is necessary that Spindle software recognizes the pole position of the synchronous motor to control the current. Spindle software uses BZ sensor with the synchronous motor to recognize the pole position. From now on, we abbreviate “the spindle software in Spindle module” to S
- Page 5rotation depends on initial position at the time. •Alarm 65 is issued when the rotation angle from 0 to 90 degrees position amount less than 80 degrees after confirming the stall at 90 degrees position. This might happen if the motor is locked up mechanically. If so, release it to move the motor aft
- Page 62.1.The sequence of Pole position detection The pole detection works only once after Power on or after happening of alarm that lose the pole position. The sequence of it is as (1) and (2) as described below. 2.1.1.SFR/SRV is trigger signal case Power MRDY & *ESP SFR or SRV Alarm lost pole position h
- Page 72.1.2. EPFSTR is the trigger signal case Power MRDY & *ESP Alarm lost pole position & SFR/SRV happens、EPFIX=0 EPFSTR Velocity command Lost pole position Pole set Invalid velocity command Valid velocity command EPFIX Lost pole pos. Invalid velocity command Motor Velocity 0 position 90 position Pole d
- Page 82.2.PMC signal for Pole position detection The below table summarizes the PMC signal necessary to achieve pole detection. The bold type is added this time for the synchronous motor. INPUT (PMC → CNC) FS15 FS16 #7 #6 #5 #4 #3 #2 #1 #0 G227 G070 MRDY SFR SRV G226 G071 *ESP G228 G073 EPFSTR SYMBOL MEAN