HEIDENHAIN ND 286 - Manual (Page 9)

Parameter Settings for HEIDENHAIN Linear Encoders
Parameter Meaning Function / Effect Setting
External REF REF over D-sub connection EXT
No REF over EXT connection
First status indicator after MOD is pressed
Mode START PRINT MIN ACTL MAX DIFF
Fast Fast external reset/preset
Fast Set repeated (setting of P53: )
external REF mode, datum 2 and
reset/preset measuring series are not usable
No fast preset
Display step
(unit: P01)
The following settings
apply for mm: Model Signal
period
[µm] Reference
marks P 43
mm inches Subdi-
vision
P32 Count.
mode
P33 Decimal
places
P38
one single LIF 121 2
dist. c 5000
0,002
0,001
0,000 5 0,000 1
0,000 05
0,000 02 1
2
4 2
1
5 3
3
4
one single 0,80,001
0,000 2
0,000 05
0,000 01 0,8
4
1
2 3
4 LIF 171
0,4
dist. c 5000
0,000 2
0,000 1 0,000 01
0,000 005 2
4 2
1 4
4
one single 8 0,002 0,000 1 4 2 3 LIDA 17x
4
dist. c 2000
0,002
0,001 0,000 1
0,000 05 2
4 2
1 3
3
LIM 172 200 one single 0,2
0,1
0,05 0,01
0,005
0,002 1
2
4 2
1
5 1
1
2
one single 4 0,002
0,001 0,000 1
0,000 05 2
4 2
1 3
3 LS 176
LS 476
LS 776
2
dist. c 1000
0,002
0,001
0,000 5 0,000 1
0,000 05
0,000 02 1
2
4 2
1
5 3
3
4
one single LS 323
LS 623 20
dist. c 1000
0,02
0,01
0,005 0,001
0,000 5
0,000 2 1
2
4 2
1
5 2
2
3
4 0,002
0,001 0,000 1
0,000 05 2
4 2
1 3
3 LT 171
2
one single
0,002
0,001
0,000 5 0,000 1
0,000 05
0,000 02 1
2
4 2
1
5 3
3
4
0,4 0,000 2
0,000 1 0,000 01
0,000 005 2
4 2
1 4
4 MT xx71
0,2
one single
0,000 2
0,000 1
0,000 05 0,000 1
0,000 05
0,000 02 1
2
4 2
1
5 4
4
5
ST 1271 4 none 0,002
0,001 0,000 1
0,000 05 2
4 2
1 3
3
2 0,002
0,001
0,000 5 0,000 1
0,000 05
0,000 02 1
2
4 2
1
5 3
3
4
Example: Set parameters for any encoder; Linear encoder with signal period
s = 4 µm; Desired display step a = 0.001 mm;
Subdivision P32 = 0,001
••••
s / a = 4;
Counting mode P33 = 1 (display counts 1, 2, 3, ...);
Decimal places of a: P38 = 3;
For linear measurement using rotary encoders with square-wave output
signals (e.g. ROD 426) on a ballscrew, calculate the signal period [µm] according
to the following formula:
Signal period [µm] =
Enter the parameters Subdivision, Counting mode and Decimal places as
for linear encoders.
Screw pitch [mm]
•
1000
Line count