FS 16i/18i/21i/20i/160i/180i/210i/15i/150i/Power Mate i ,etc. Additional Manual Page 2
Additional Manual
TITLE
DRAW.
No.
1 / 4
Page
FANUC LTD
DESCRIPTIONDESIGNDATE
EDIT
Preventive measures against errors
of linear scale caused by noise
A-65434EN
Preventive measures against errors of linear scale caused by noise
1. Outline
In this material, several preventive measures against errors of linear scale caused by noise in the
system of FANUC Series 16i/ 18i/ 21i/ 20i/ 160i/ 180i/ 210i/ 15i/ 150i/ Power Mate i ,etc. are shown.
2. Preventive measures
2.1 Scale unit grounding
In generally, head and body of linear scale should be grounded steadily. When scale is installed,
some scale needs a specified screw for it. Please follow the installing manual of linear scale and
secure steady grounding.
2.2 Treatment of cable shield
The cable of linear scale should be shielded cable. Please ground its shield near the unit connected it
as you can.
When the cables are relayed, please ground the both shields of them or connect the shields of them
to secure steady conduction between both shield.
2.3 In case of Separate Detector Unit (SDU)
Like above figure, please ground 0V of DC power supply for SDU and keep this power line away
from noise sources (example AC cable, contact etc.) as you can.
2.4 other measure
If the noise invading in linear scale is too much or noise tolerance of linear scale is not enough,
grounding signal ground terminal may be effective. It is located on the printed circuit board of SDU for
basic four axes. Grounding wire can be fixed with M3 screw.
DC power supply
DC +24Vout
0V
SDU
DC +24V in
0V
GROUND
01 01.11.20 KOMAKI FIRST EDTION
Contents Summary of FS 16i/18i/21i/20i/160i/180i/210i/15i/150i/Power Mate i ,etc. Additional Manual
- Page 1TECHNICAL REPORT (MANUAL) No. TMN01/178E Date 2001 General Manager of Hardware Laboratory Preventive measures against errors of linear scale caused by noise Communicate this report to : O Your information O GE Fanuc-N, GE Fanuc-E FANUC Robotics CINCINNATI MILACRON O Machine tool builder Sales agency
- Page 2Preventive measures against errors of linear scale caused by noise 1. Outline In this material, several preventive measures against errors of linear scale caused by noise in the system of FANUC Series 16i/ 18i/ 21i/ 20i/ 160i/ 180i/ 210i/ 15i/ 150i/ Power Mate i ,etc. are shown. 2. Preventive measur
- Page 3SDU : SIGNAL GROUND A02B-0236-C203 M3 screw terminal or GROUNDING WIRE A02B-0236-C205 to GROUND Preventive measures against errors TITLE of linear scale caused by noise DRAW. No. A-65434EN EDIT DATE DESIGN DESCRIPTION FANUC LTD Page 2/4
- Page 43. Axis Vibration The error of linear scale may not cause alarm but cause axis vibration. If the servo software is following edition, the feedback interpolation counter can be used to investigate the influence of the noise. l 90A0/X,Y l 90A6/A or later l 90B0/D or later Note) feedback interpolation
- Page 54x1202DA : Axis which No.1023 is set to 12. 4x1402CA : Axis which No.1023 is set to 13. 4x1402DA : Axis which No.1023 is set to 14. 4x1602CA : Axis which No.1023 is set to 15. 4x1602DA : Axis which No.1023 is set to 16. 4x1802CA : Axis which No.1023 is set to 17. 4x1802DA : Axis which No.1023 is set