Spindle Motor (Synchronous Motor) Mounting sensor & Starting sequence Specifications Additional Manual Page 5
Additional Manual
Rev
DATE
CONTENTS
Takahashi
Design
TITLE
DNr. A-63639-067E
FANUC
PAGE
５/8
02
2000.11.09
PRM4008#6 added Toyozawa
Synchronous Spindle Motor
Mounting Sensor/Starting sequence
Specification
rotation 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 after power off.
(2)After the temporary pole setting, the velocity command can drive the motor. In case of EPFSTR
method as the trigger, the operator can issue the velocity command after identifying the temporary
pole setting.
(3)The pole detection completed with the pole position set to zero where it detects a reference signal of
BZ sensor.
Unexpected behavior during the pole detection
As described former, Using SFR/SRV as the trigger may seem to be irregular motion for a operator
who is not aware of the pole detection because of irrelevant behavior to his will. The pole detection
method using EPFSTR and EPFIX is prepared for them who doesn’t prefer the situation.
(Note) This pole detection sequence is subject to the change or the modification without notice in
advance for purpose of improving the performance.
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