Model
Signal
period [µm]
Reference
marks
P43
Display step
(unit: P01)
mm inches
Subdi-
vision
P32
Operating Parameter List
– cont'd.
Parameter
Meaning
Function / Effect
Setting
Counting
Normal
(
Dir
ection:
Pos
itive)
direction
A
Inverse
(
Dir
ection:
Neg
ative)
Signal period of encoder
A
(
Per
iod:) 2, 4, 10, 20, 40, 100, 200
Subdivision of the encoder signals
A
(
Subd
ivision:) 4, 2, 1, 0.8, 0.5, 0.4, 0.2, 0.1
Select
Error compensation not active
error
Linear error compensation active
compensation
Non-linear error compensation active
Linear error compensation
1)
A
Com
pensation – 99 999 < P41 < + 99 999 [µm/m]
Reference
One reference mark
marks
A
Distance-coded with 500
•
SP
(SP = signal period)
Distance-coded with 1000
•
GP
(e.g. for LS 303 C / LS 603 C)
Distance-coded with 2000
•
SP
Distance-coded with 5000
•
SP
Encoder
Monitoring off
(
Alar
m
Off
)
Enc
oder
monitoring
A
Monitoring on
(
Alar
m
On
)
Axis display
A
Display measured position
(
Axis
)
Do not display measured position /
no encoder
Function of
Resets display to zero
CL key
Does not reset display to zero
1)
Calculate the entry value for P41
Example:
Displayed measuring length La = 620.000 mm
Actual length (determined with, for example, the VM 101 comparator
system from HEIDENHAIN) Lt = 619.876 mm
Length difference
∆
L = Lt – La = –124 µm
Compens. factor k: k =
∆
L / La = –124 µm / 0.62 m =
–200
[µm/m]
Parameter Settings for HEIDENHAIN Linear Encoders
LS 303
20
one
single 0.005 0.000 2
4
LS 603
dist.c.
1 000
0.01
0.000 5
2
LB 302
40
one
single
0.01
0.000 5
4
LIDA 10x
dist.c.
2 000
LB 3xx
100
one
single
0.025
0.001
4
dist.c.
1 000
0.05
0.002
2
0.1
0.005
1
Example:
Linear encoder with signal period s = 20 µm
Desired display step a = 0.005 mm
Subdivision
P32 =
=
=
=
=
0.001
•••••
s / a
= 4
