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Specifications of Servo-Spindle synchronous control function Supplement to Manual Page 6

Supplement to Manual
A-78808E
Sheet
Title
Draw
No.
Ed.
Ed.Ed.
Ed. Date
DateDate
Date Design
DesignDesign
Design Description
DescriptionDescription
Description
Date
DateDate
Date May.29.’02 Desig.
Desig.Desig.
Desig. A.Fukumoto Apprv
ApprvApprv
Apprv.
..
. T.Endo
FANUC Series 16i /18i -TB
Specifications of Servo-Spindle synchronous control
function
6/
17
2.4 Spindle control by servo motor
The servo motor can be rotated in the rotating speed specified by the input
signal.
• Spindle control mode
The servo motor becomes spindle control mode by making Servo-Spindle switch
signal SVSP '1', and the servo motor rotates in the rotating speed specified by the
signal. Spindle control mode signal SVSPM becomes '1' in spindle control mode.
When Servo-Spindle switch signal SVSP is made '0', the spindle control mode is
released. At this time, signal SVSPM becomes '0'.
Note
As for the spindle control mode inside, the coordinates value is not updated.
Therefore, the relation between coordinates value and an actual machine position
is lost.
• Method of specifying rotating speed
The rotating speed of the servo motor in spindle control mode is specified by the
rotating speed control signal SVR01I-SVR12I. Please input the value obtained
by the undermentioned formula by the binary.
4096
speed Spindle Max.
SpeedTarget
einput valu Signal ×=
Moreover, the rotating direction of the motor is specified by signal SVGN.
• Acceleration and Deceleration
When the spindle control mode is turning on or off, or signal SVR01I-SVR12I
changes, the de-and acceleration is done by the time constant of parameter
No.3843. The spindle control mode acc/deceleration completion signal SVAR
becomes '1' when the de-and acceleration is completed and motor speed becomes
a stationary state.
Speed of servo motor
SVAR(Output)
SVSPM(Output)
SVSP(Input)
SVR01I
∼
SVR12I,SVGN (Input)
2.5 Servo-Spindle synchronous control
The servo motor can be rotated synchronizing with the feedback pulse from the
position coder of the spindle.
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Contents Summary of Specifications of Servo-Spindle synchronous control function Supplement to Manual

  • Page 1FANUC Series 16i /18i –TB Specifications of Servo-Spindle synchronous control function FANUC Series 16i /18i -TB GFE02/0798_b Title Specifications of Servo-Spindle synchronous control function Draw No. A-78808E Ed. Date Design Description Sheet 1/17 Date May.29.’02 Desig. A.Fukumoto Apprv. Apprv. T.
  • Page 2Contents 1 Outline.................................................................................................................................... 3 1.1 Outline ....................................................................................................................................3 2
  • Page 31 Outline 1.1 Outline To use the servo motor for the spindle control, this function provides the following functions. (1) Spindle control by servo motor The servo motor can be rotated in the rotating speed specified by the input signal. (2) Servo-Spindle synchronous control The servo motor can be ro
  • Page 42 Operation 2.1 Connection Please input the feedback pulse from the position coder to the pulse module. Please set parameter No.1905#7, (PM2), # 6(PM1), and parameter No.1936,1937 to make the feedback pulse input to the pulse module effective. The spindle (position coder) and the servo motor come to
  • Page 52.2 Configuration When this function is used, it is necessary to adjust the detection unit to the value that the number of pulses for spindle one revolution becomes 4096 by setting flexible feed gear (M/N). Therefore, it is necessary to select ratio a:b of the gear of the servo motor and the spindle
  • Page 62.4 Spindle control by servo motor The servo motor can be rotated in the rotating speed specified by the input signal. • Spindle control mode The servo motor becomes spindle control mode by making Servo-Spindle switch signal SVSP '1', and the servo motor rotates in the rotating speed specified by th
  • Page 7• Servo-Spindle synchronous control mode The servo motor becomes a Servo-Spindle synchronous mode by making Servo- Spindle synchronous signal SYSS '1'. The servo motor is accelerated up to the same speed as the spindle specified by parameter No.3844 or decelerates when entering the Servo-Spindle syn
  • Page 82.6 Differential velocity synchronization It is possible to make the rotating speed specified by the axis movement command or the input signal from CNC superimposed to the servo motor in Servo-Spindle synchronous mode. However, it is not possible to make both of the signal and the axis movement comm
  • Page 93 Signal 3.1 Detail of signals Servo-Spindle switch signal SVSP (G022#7) [Classification] Input signal (Switching ‘β’ in the figure) [Function] The servo motor becomes spindle control mode by turning on SVSP signal, and the speed command is output to the servo motor in the rotating speed set in 12BI
  • Page 10Servo-Spindle synchronous signal SYSS (G061#2) [Classification] Input signal (Switching ‘α’ in the figure) [Function] The servo motor becomes a servo-spindle synchronous mode by by making input signal SYSS '1'. At this time, signal SYSSM becomes '1'. A sub-spindle is accelerated up to the rotating s
  • Page 113.2 Signal address (PMC→CNC) #7 #6 #5 #4 #3 #2 #1 #0 G061 SYSS G021 SVR08I SVR07I SVR06I SVR05I SVR04I SVR03I SVR02I SVR01I G022 SVSP SVGN DFSYC SVR12I SVR11I SVR10I SVR09I (CNC→PMC) #7 #6 #5 #4 #3 #2 #1 #0 F090 SVSPM SVAR SYSSM SYAR FANUC Series 16i /18i -TB Title Specifications of Servo-Spindle sy
  • Page 124 Parameter 3841 Servo axis number of spindle control by servo motor [Data type] type] Word [Valid data range] range] 1– 6 This parameter specifies the servo axis number for spindle control by servo motor and servo-spindle synchronous control. If setting value is ‘0’, these functions are invalid. It
  • Page 132038 Magnification of position coder feedback (R) [Data type] type] Word [Valid data range] range] -32767– +32767 Please set the magnification so that feedback from the position coder may become 4096 for spindle one revolution. Number of teeth (spindle side) Paremeter setting value = Number of teeth
  • Page 14#7 #6 #5 #4 #3 #2 #1 #0 2003 PIENx [Data type] type] Bit axis PIENx PI control is 0: Disabled. 1: Enabled. Note Please set ‘1’ to use feed forward function. #7 #6 #5 #4 #3 #2 #1 #0 2005 FEEDx [Data type] type] Bit axis FEEDx Feed forward function is 0: Disabled. 1: Enabled. Note Please set ‘1’ to us
  • Page 155 Alarm and Message Number Message Content 5211 SERVO SPINDLE ERROR The servo axis was commanded in in the servo main spindle synchronous mode by CNC. Please correct the program. FANUC Series 16i /18i -TB Title Specifications of Servo-Spindle synchronous control function Draw No. A-78808E Ed. Date D
  • Page 166 Notes 6.1 Servo alarm When the servo alarm is generated, the spindle control mode and the servo- spindle synchronous mode are released. At this time, signal SVSPM, SYSSM, SVAR, and SYAR(F090) become '0'. After releasing the servo alarm, the spindle control by servo motor and the servo-spindle sync
  • Page 176.6 Relation between spindle control by servo motor and servo-spindle synchronous control When the servo-spindle synchronous control is started in the spindle control mode, the spindle control mode is released. However, if the difference velocity synchronization signal is input, the spindle control