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