Encoder - Baumuller b maXX BM3000 Operating Manual

4.4
Configuration
4.4.6

Encoder

This software module manages the evaluation and monitoring of the encoder signals.
The following encoder types can be evaluated:
Encoder type
Resolver
Square-wave incre-
mental encoder
Sine-Cosine encoder
Sine-Cosine encoder
with Hiperface
Sine-Cosine encoder
with EnDat
Sine-Cosine encoder
with SSI interface
Maximum input frequency and maximum speed
The maximum input frequency is related to the electrical input signal. This value has ef-
fect on the maximum evaluatable speed of the drive, which is possible depending on the
number of pulses.
Incremental encoder:
Example: Sine-Cosine encoder with a number of pulses 1024:
Resolver
The theoretical maximum speed is limited due to the excitation frequency (7.8125 kHz)
and the number of pole pairs at a resolver.
-1
 
n min
max,theoretical
Example: Resolver with 1 pole pair
162 Parameter manual b maXX BM3000
Document no.: 5.12001.07
of 820
Supply
Excitation fre-
quency 7.8125 kHz
5 V
5 V
10 V
®
5 V
®
5 V
n
max,theoretical
n
max,theoretical
f
excitation
= ----------------------------------------------------------------------------------- -

20 Number of pole pairs Resolver

n min
max,theoretical
Signal
Transmission ratio
0.5
RS422 (TTL)
~ 1 Vpp
~ 1 Vpp
~ 1 Vpp
~ 1 Vpp
-1
 
min = ----------------------------------------- -
Number of pulses

250 kHz 60
-1
 
min = ------------------------------ -
1024

60
= ----------------------------------------------------------------------------------- -
20 Number of pole pairs Resolver
7,8125 kHz 60
-1

= ------------------------------------- -
20 1 
Maximum input
frequency
-
250 kHz
250 kHz
250 kHz
250 kHz
250 kHz

f 60
input
-1
= 14648 min

7,8125 kHz 60


-1
= 23437 min
Baumüller Nürnberg GmbH