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Eletrial
data
-
b
maXX®
BM3400
D.6
T
D.6.1.2
Sine
w
ave
inremental
eno
der
interfae
Supply
+5V
Load
max. 250mA
Input level
1V
pp
Cable termination
120
Ω
The maximum possible speed of rotation of an incremental encoder (sine-cosine) is limited by the cut-off
frequency of the encoder interface input filter. This lies at 300kHz. Hence it follows that there is a theoretic
possible maximum speed according to the formula:
theoretically maximum speed [RPM] = n
max
,
t heor et ic al l y
= cut-off frequency * 60 / encoder PPR.
Example: Incremental encoder (sine-cosine) with 1024 PPR counts.
n
,
max
,
t heor et ic al l y
= 300 kHz * 60 / 1024 = 17578 RPM
D.6.1.3
Hip
erfae
absolute
eno
der
interfae
Supply
+8V
Load
max. 250mA
Input level
1V
pp
Cable termination
120
Ω
The maximum possible encoder speed of an HIPERFACE encoder is determined by the same boundary con-
ditions as at the sine wave incremental encoder. Further information is found under «Sine wave incremental
encoder interface» from page
D.6.1.4
Squa
re
w
ave
inremental
eno
der
interfae
Supply
+5V
Load
max. 250mA
Input level
RS422
Cable termination
120
Ω
The maximum possible encoder speed of a square wave incremental encoder is determined with the same
boundary conditions as with the sine wave incremental encoder. Further information is found under «Sine
wave incremental encoder interface» from page
Instrution
Manual
b
maXX®
BM3400
175
Do
ument
No.:
5.07013.03
from
206
Summary of Contents for b maXX BM3400 Series
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