
2. Method of using Heidenhain rotary scale RCN223, 723 and 220
RCN223, 723 and 220 are the detectors which save absolute position only within one
rotation. And the former two detectors (RCN223 and 723) are the detectors which
have eight million pulses every one rotation. There are following cautions on using.
・ In the case of RCN223, 723 and 220, there is the case that wrong positional data
(rotary data) is read on absolute positional communication because it is not saved
(it is undefined).
・ In the case of RCN223 and 723, if it is used as usual, eight grids are made every
one rotation.
The following parameters are necessary to resolve these problems.
#7 #6 #5 #4 #3 #2 #1 #0
2275 RCNCLR 800PLS
[Data type] Bit axis
800PLS (#0) Specifies to use a rotary encorder which has eight million pulses (RCN223, 723 and
so on)
1: to use (A grid is made every a rotation)
0: no to use
In case of RCN220, this parameter is set to “0”.
#2
Following servo softwears support this function.
90B0-17 or later
#3
90B3-08 or later
90B7-08 or later
#3
RCNCLR (#1) Specifies to clear rotary data
1: to clear (set in using RCN223, 723 and 220)
0: not to clear
Set this bit with following data mask figure number
Following servo softwears support this function.
90B0-20 or later
90B3-08 or later
#3
90B7-08 or later
#3
2394 data mask figure number
[Setting value] 5 or 8 (Setting value is according to detector’s type. Now a detector on which rotary
data must be cleared is RCN223, 723 (set 8) and RCN220 (set 5) )
Set this parameter with RCNCLR
Following servo softwears support this function.
90B0-20 or later
90B3-08 or later
#3
90B7-08 or later
#3
Edit
Apprv Desig.
10/12
Date
Design
Description
Data
FANUC Series 16i /18i /21i –MA/MB, 18i -MB5
Setting of parameters for rotary scale without
rotar
y data
A-78823E
03 Dec.02.2003 Out of #3 is added.
02 Feb.25.2003
M.tanaka
Out of #2 is altered / added.
Feb.20.2003
Sheet
Title
Draw
No.