T
D
App
endix
D
-
T
ehnial
data
D.6
Eletrial
data
-
b
maXX®
BM3400
D.6.1
Controller
b
oa
rd
The controller PCB contains all modules for digital and analog in- and outputs, encoder sensing and commu-
nication. In the following sections you will find details according the modules.
D.6.1.1
Resolver
interfae
Excitation voltage
max. 10V
pp
Excitation frequency
4kHz
Load
max. 160mA
Input level
max. 1.8V
pp
Cable termination
120
Ω
By reason of different transmitting conditions when using resolvers of different manufacturers a software-
controlled adaption of the excitation voltage for the optimization of the input level takes place.
The theoretic ascertainable maximum speed results of the max. permissible ratio of excitation frequency
towards useful signal frequency, which is specified with 20. Out of this the theoretical maximum permissible
speed will be
theoretical maximum speed [RPM] = n
max
,
t heor et ic
= f
exci t at ion
* 60 / (20 * pole number resolver).
Consequently there is for a 1-pole resolver at 4kHz excitation frequency a functional maximum speed of 12000
RPM.
The ratio between the number of pole pairs of the motor and the number of pole pairs of the resolver must be
integer. For example the combination of a motor with 3 pole pairs and a 1-pole resolver is permitted, whereas
at the same motor a 2-pole resolver cannot be used.
174
Instrution
Manual
b
maXX®
BM3400
from
206
Do
ument
No.:
5.07013.03
Baumueller
Kamenz
GmbH
Содержание b maXX BM3400 Series
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