Operating parameter list – HEIDENHAIN ND 520 User Manual
Page 7
Operating Parameter List
– cont'd.
Parameter
Meaning
Function / Effect
Setting
Counting
Normal (
Direction: Positive)
direction
A
Inverse (
Direction: Negative)
Signal period of the encoder [µm]
A
(
Period:) 2, 4, 10, 20, 40, 100, 200, 12 800
Subdivision of the encoder signals
A
(
Subdivision:)
128, 100, 80, 64, 50, 40, 20, 10, 5, 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
Compensation – 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
•
SP
(e.g. for LS 303 C / LS 603 C)
Distance-coded with 2000
•
SP
Distance-coded with 5000
•
SP
Encoder
Monitoring off
(Alarm Off)
Encoder
monitoring
A
Monitoring on
(Alarm On)
Axis display
A
Display measured position
(
Axis)
Do not display measured position /
no encoder
Function of the
Reset to zero with CL
CL key
No reset to zero with CL
1)
Entry value for P41
Example:
Displayed measuring length: Ld = 620.000 mm
Actual length (as determined with a comparator system such as the VM 101 from
HEIDENHAIN): La = 619.876 mm
Length difference:
∆
L = La – Ld = –124 µm
Compensation factor: k =
∆
L / Ld = –124 µm / 0.62 m = –200 [µm/m]
Display step, signal period and subdivision for linear encoders
Display step
P31: Signal period [µm]
2
2
2
2
2 4
4
4
4
4
10
10
10
10
10
20
20
20
20
20
40
40
40
40
40
100
100
100
100
100
200
200
200
200
200
12
12
12
12
12 800
800
800
800
800
[mm]
[inches]
P32: Subdivision
0.000 02
0.000 001
100
–
–
–
–
–
–
–
0.000 05
0.000 002
40
80
–
–
–
–
–
–
0.000 1
0.000 005
20
40
100
–
–
–
–
–
0.000 2
0.000 01
10
20
50
100
–
–
–
–
0.000 5
0.000 02
4
8
20
40
80
–
–
–
0.001
0.000 05
2
4
10
20
40
100
–
–
0.002
0.000 1
1
2
5
10
20
50
100
–
0.005
0.000 2
0.4
0.8
2
4
8
20
40
–
0.01
0.000 5
0.2
0.4
1
2
4
10
20
–
0.02
0.001
–
–
0.5
1
2
5
10
–
0.05
0.002
–
–
0.2
0.4
0.8
2
4
–
0.1
0.005
–
–
0.1
0.2
0.4
1
2
128
0.2
0.01
–
–
–
–
–
–
–
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