Electric Drives
and Controls
6−7Bosch Rexroth AGRhoMotion1070072367 / 04
SERCOS interface
Belt encoder input
The SERCOS interface of a regulated axis can be also used as belt en-
coder input.
P401 is to be set as follows for the belt input:
BN1 Servo-B. : 1 number of the servo board
(at present always 1)
BN1 SCS plug-no
:
X71 plug No. of the SERCOS interface
BN1 SCS ring-no. : 1 running number of the SERCOS ring (at
present always 1)
BN1 SCS axis no. : 1 SERCOS address of the corresponding
drive amplifier. (Only the address of a
regulated axis already existing can be
entered.)
BN1 modulo-value : 8 Only modulo interface (entry > 0) allo-
wed. Value must match the value of the
corresponding regulated axis.
BN1 ms.fact : 1000.00 Measuring system factor
When using Bosch Rexroth drive ampli-
fiers always enter 1000.00.
Machine parameter P38
The baud rate and the download of the drive parameters are set via P38
SERCOS-INTERFACE.
Baud rate [MBaud]: 2 Transfer rate of the interface
Par. download (0/1): 1 Perform download of drive parameters.
6.2.2 SERCOS specific drive parameters
The SERCOS specific drive parameters are called in the following ex-
tended Machine parameter (XMP). They are saved in the control in a
special file. These parameters are only transferred in the initialization
phase per download to the drives. They are else not required in the con-
trol.
An ASCII file created with the Bosch Rexroth DSS program is used as
basis. The program DSS (Diagnosis and Service System) is used as
startup help and diagnosis tool for the drive converter Servodyn-D.
After completed drive optimization, an ASCII file, which contains all
drive parameters of a special axis, can be created per DSS. This must
be performed for all axes.
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