
B-65280EN/05 FANUC AC SPINDLE MOTOR αCi series 2.EXPLANATION OF OPERATION MODES
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(ii) When the motor does not rotate at a specified speed
(1) Check the connections. (Refer to Descriptions (B-65372EN).)
(a) Motor power line connection
(b) Connection of the position coder signal cable (shielding,
grounding)
(2) Check the parameter settings.
(a) Parameter data for each motor model
(b) Detector-related parameter data (Refer to Section 1.3 in Part
III.)
(c) Setting of a maximum motor speed
15i 16i 30i
Description
3020 4020 4020 Maximum motor speed
(d) Parameters related to spindle speed specification
For Series 16i/18i/21i
“FANUC Series 16i/18i/21i-MODEL B
CONNECTION MANUAL (FUNCTION) : B-63523EN-1
Refer to Section 9.3 “SPINDLE SPEED CONTROL.”
For Series 30i/31i/32i
“FANUC Series 30i/31i/32i-MODEL A
CONNECTION MANUAL (FUNCTION) : B-63943EN-1
Refer to Section 11.3 “SPINDLE SPEED CONTROL.”
For Series 15i
“FANUC Series 15i-MODEL B
CONNECTION MANUAL (FUNCTION) : B-63783EN-1
Refer to Section 9.3 “SPINDLE SPEED CONTROL.”
For Series 0i
“FANUC Series 0i-MODEL B
CONNECTION MANUAL (FUNCTION) : B-63833EN-1
Refer to Section 9.3 “SPINDLE SPEED CONTROL.”
(iii) When the motor vibrates and makes an abnormal sound when rotating
(1) Check the connections. (Refer to Descriptions (B-65372EN).)
(a) Connection of the position coder signal cable (shielding,
grounding)
(2) Check the parameter settings.
The velocity loop gain may be too large. Adjust the following
parameters:
15i 16i 30i
Description Setting data
3040 4040 4040 Velocity proportional gain (HIGH)
3041 4041 4041 Velocity proportional gain (LOW)
3048 4048 4048 Velocity integral gain (HIGH)
3049 4049 4049 Velocity integral gain (LOW)
Decrease the
setting values.