
TITLE
B-63173EN-1/02
EDIT
DATE DESIG. DESCRIPTION
ower
ate i-
Straightness compensation B function
Connection manual (function)
DRAW.NO. CUST.
SHEET
01
990624 New design
Straightness Compensation B function is applied to the following system series and version or later of the
Power Mate i-D/H.
Power Mate i series type
ROM series version
FANUC Power Mate i-MODEL D
88E0
07
FANUC Power Mate i-MODEL H
88F0
07
Please add the following contents at the next part of the “1.3.2 Backlash compensation ” in the
“FANUC Power Mate i-MODEL D/H Connection manual (Function)” .(B-63173EN-1/01)
1.3.3
Straightness Compensation B
General For a machine tool with a long stroke, deviations in the straightness between axes may
deteriorate machining accuracy. For this reason, when an axis moves, other axes are
compensated in detection units to improve straightness. This improvement results in
better machining accuracy.
When an axis (parameter No. 5711) moves, the corresponding compensation axis
(parameter No. 5721) is compensated. That is, the compensation axis is compensated at
the pitch error compensation position (See 1.3.1 Stored Pitch error compensation) of the
moving axis.
・
・・
・Pitch error compensation points on moving axis
0 1 2 3 60 61 126 127
・
・・
・Machine coordinates for moving axis
a b c d
α γ
β ε
a, b, c, d : Compensation position numbers of the moving axis. (used pitch error
compensation point number)
α, β, γ, ε : Compensation for compensation axis.
This compensation from point a to point b is calculated from the formula:(β-α)/(b-a)