Siemens SINUMERIK 810D Configuration Manual page 76

4 Description of the SINUMERIK 810D
4.3 Measuring system
Direct
The motor measuring system is only used to detect the motor position. If
measuring system necessary, a second measuring system, e.g. a scale, can be used for position
sensing at the load end.
FSD
Incremental encoders, distance
value encoders can be used (voltage signals).
Direct position sensing
with spare CCU measuring channel
X411
X416
SINUMERIK 810D
CCU module
Incremental
motor position
Voltage signals
Direct position sensing for axis expansion
with external 611D closed-loop control
Axis expansion
X130
611D
closed-loop
SINUMERIK 810D
control
CCU module
2
or
Voltage signals and
EnDat absolute
Axis expansion
X130
611D closed-
loop control
SINUMERIK 810D
CCU module
Voltage signals and
EnDat absolute
Indirect position sensing with digital closed-loop control FDD
Fig. 4-10
*) e.g. 1FK7
4-74
FSD
Linear measuring system
1
incremental/absolute
Motor
*)
2 3
or
Linear measuring
system incremental
1
or incremental and
absolute
Motor
*)
3
Motor position
incremental/absolute
Linear measuring
system incremental
1
or incremental and
absolute
Motor
*)
4 5
or
Incremental
motor position
SINUMERIK 810D Manual Hardware Configuration (PHC) - - 11.02 Edition
coded incremental encoders or EnDat absolute
-
M: Max. possible measuring steps
G: Accuracy of the encoder
system
M = 128 per encoder signal
period or graduation
G is a function of the accuracy of the
encoder system at the load end.
M = 128 or 2048 with
611D enhanced closed-loop control
per encoder signal period or
graduation
G is a function of the accuracy of the
encoder system at the load end.
M = 128 per encoder signal
period or graduation
G is a function of the accuracy of the
optional encoder system.
E Siemens AG, 2002. All rights reserved
11.02
12.95