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FS 16i/18i/21i-Model A/B, Supplementary Explanation of Multi Spindle Control Additional Manual Page 3

Additional Manual
The explanation of Ladder sequence (signal operation) and the example of time chart are shown
below for Multi spindle control.
1.
Outline of the CNC processing and the relation with the ladder
On multi spindle control, CNC considers S command (program command), signals related to S
command (ex. Spindle override) and G-code (ex. G96/G97), and converts to the actual spindle
rotation speed. Then CNC sends this value only to the spindle that is selected by SWS
X
signal.
On this document, a series of this processing is called "S renewal processing".
S renewal processing is asynchronously executed with the changing of the select/non-select
condition of the spindle by ladder sequence.
Therefore, the order of the changing of the select/non-select condition of each spindle and S
command must be considered by the ladder sequence or the program command according to the
necessity.
2. S command
Ladder can confirm the S command by SF signal. In case of waiting the completion of S renewal
processing after the S command, please take time by using the timer of ladder and so on.
As for the output condition of SF signal, please refer to parameter 3705.
On T series system, please set EVS (Parameter 3705#4) to "1" to output SF signal.
A necessary processing time to complete S renewal processing from the S command is shown
below.
In case of 1 system : 64 msec •
• In case of multi path system : 200 msec
A-79111E
Sheet
Title
Draw
No.
Ed. Date Design Description
Date Apr.04.’03 Desig. Apprv.
FANUC Series 16i/18i/21i – MODEL A / B
Supplementary explanation of Multi spindle control
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Contents Summary of FS 16i/18i/21i-Model A/B, Supplementary Explanation of Multi Spindle Control Additional Manual

  • Page 1TECHNICAL REPORT (MANUAL) No. TMN03/031E Date : Apr. 4, 2003 General Manager of Software Development Center FANUC Series 16i/18i/21i-MODEL A / B Supplementary explanation of Multi spindle control 1. Communicate this report to: Your information only ○ GE Fanuc-N, GE Fanuc-E FANUC Robotics MILACRON ○
  • Page 2FANUC Series 16i / 18i / 21i – MODEL A / B Supplementary explanation of Multi spindle control Contents 1. Outline of the CNC processing and the relation with the ladder Page 2 2. S command Page 2 3. Time chart (Example) Page 3 FANUC Series 16i/18i/21i – MODEL A / B Title Supplementary explanation of
  • Page 3The explanation of Ladder sequence (signal operation) and the example of time chart are shown below for Multi spindle control. 1. Outline of the CNC processing and the relation with the ladder On multi spindle control, CNC considers S command (program command), signals related to S command (ex. Spin
  • Page 43. Time chart (Example) The example of the time chart when executing the following program is shown. M1＿ S1＿ ; ………… (1) M2＿ S2＿ ; ………… (2) (1) : The program to execute S command of S1_ to the 1st spindle. (2) : The program to execute S command of S2_ to the 2nd spindle. And at this time, the 1st spi
  • Page 5In the time chart, it takes time to start S renewal processing of CNC in A . At this time, both SWS1 and SWS2 signals are "0". Therefore, S command is not forwarded to any spindle even when S renewal processing is completed. It takes time to execute S renewal processing with selecting the objective