Table of Contents
Advertisement
01.99
08.02
! not 611ue !
Overview: Encoder
The following table shows which signals are output for which encoder
– angular
types and with which parameters they can be manipulated.
incremental
encoder signals –
manipulation
Table 6-57
Encoder – angular incremental encoder signals – manipulation
Encoder type
Angular incremental encoder signals
Resolver
(pole pair no.)
2p = 1 (1–speed)
1024 pulses/rev
4p = 2 (2–speed)
2048 pulses/rev
3072 pulses/rev
6p = 3 (3–speed)
4096 pulses/rev
8p = 4 (4–speed)
Encoder with
sin/cos 1Vpp,
incremental
P0892 = 0 (factor 1:1)
(without EnDat),
output timing un-
rotating/linear
changed via the angu-
changed via the angu-
lar incremental encoder
interface (sinusoidal
becomes squarewave/
TTL)
TTL)
P0892 = 1, 2, 3
P0892 = 1, 2, 3
Encoder with
(factor 1:x)
sin/cos 1Vpp
with EnDat, ro-
are output correspond-
ing to the factor (sinu-
tating
soidal becomes
squarewave/TTL)
P0892 = 4 (factor 2:1,
from SW 5.1)
from SW 5.1)
are output correspond-
are output correspond-
ing to the factor (sinu-
Encoder with
soidal becomes
sin/cos 1Vpp
squarewave/TTL)
with EnDat, lin-
ear
Note:
S
When using absolute value encoders (EnDat), an absolute value is not transferred via the angular
incremental encoder interface, but encoder signals conditioned from "SIMODRIVE 611 universal".
S
In order that the zero offset is correctly taken into account, the drive must be stationary while the con-
trol board runs–up.
Encoder with
The TTL signals of the pulse encoder simulation (angular incremental
sin/cos 1Vpp
encoder) are derived from the zero cross–overs of the sin/cos signals.
These signals are relatively flat which means that at lower speeds, mul-
tiple edges can occur at the changeover points with up to approx. half
of the sampling frequency.
E Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
6.8
Angular incremental encoder interface (X461, X462)
A/B
R
Can be evalu-
ated
Can be evalu-
ated
For pulse
n
number 2
:
Can be evalu-
ated
If not pulse
n
number 2
,
then the signal
is present but
random
(this means
that it cannot
be evaluated)
Signal avail-
able, but ran-
dom
(this means
that it cannot
be evaluated)
6 Description of the Functions
Distance
Factor, an-
between the
gular enc.
zero pulses
pulse no./
enc. pulse
no. which
can be
used?
P0892
1024 pulses
yes
4096 pulses
(from SW 6.1)
yes
Dependent on
(from SW
the encoder
5.1)
n
2
Encoder
pulses/rev
yes
Cannot be
evaluated
(as it is a ran-
dom signal)
Cannot be
evaluated
yes
(as it is a ran-
dom signal)
Can the
angular
increm.
encoder
zero
pulse be
shifted?
P0893
yes
no
yes
no
6-559
6
Advertisement
Chapters
Table of Contents
